diff --git a/Makefile.am b/Makefile.am
index 50dc6854..4065c0d2 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -71,6 +71,7 @@ cleandist:
 		$(distdir)/tests/ulib/tmp/* \
 		$(distdir)/tests/ulib/private/* \
 		$(distdir)/tests/ulib/CApath/*.*0 \
+		$(distdir)/tests/ulib/ok/json.ok \
 		$(distdir)/tests/ulib/ok/timer.ok \
 		$(distdir)/tests/ulib/ok/socket.ok \
 		$(distdir)/tests/ulib/ok/interrupt.ok \
diff --git a/Makefile.in b/Makefile.in
index f23d4acc..eb53b20e 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -1008,6 +1008,7 @@ cleandist:
 		$(distdir)/tests/ulib/tmp/* \
 		$(distdir)/tests/ulib/private/* \
 		$(distdir)/tests/ulib/CApath/*.*0 \
+		$(distdir)/tests/ulib/ok/json.ok \
 		$(distdir)/tests/ulib/ok/timer.ok \
 		$(distdir)/tests/ulib/ok/socket.ok \
 		$(distdir)/tests/ulib/ok/interrupt.ok \
diff --git a/configure b/configure
index 4937405b..ba4bcac8 100755
--- a/configure
+++ b/configure
@@ -27597,11 +27597,17 @@ $as_echo "yes" >&6; }
 
 $as_echo "#define USE_LIBCURL 1" >>confdefs.h
 
-			libcurl_version=$($curldir/bin/curl-config --version 2>/dev/null | sed -e "s/libcurl //g")
+			if test x_$PKG_CONFIG != x_no; then
+				libcurl_version=$(pkg-config --modversion libcurl)
+			fi
+			if test -z "${libcurl_version}"; then
+				libcurl_version=$($curldir/bin/curl-config --version 2>/dev/null | sed -e "s/libcurl //g")
+			fi
 			if test -z "${libcurl_version}"; then
 				libcurl_version="unknown"
 			fi
-			ULIB_LIBS="-lcurl $ULIB_LIBS";
+			libcurl_linking=$($curldir/bin/curl-config --libs 2>/dev/null)
+			ULIB_LIBS="$libcurl_linking $ULIB_LIBS";
 			if test $curldir != "${CROSS_ENVIRONMENT}/" -a $curldir != "${CROSS_ENVIRONMENT}/usr" -a $curldir != "${CROSS_ENVIRONMENT}/usr/local"; then
 				CPPFLAGS="$CPPFLAGS -I$curldir/include";
 				LDFLAGS="$LDFLAGS -L$curldir/lib -Wl,-R$curldir/lib";
diff --git a/examples/PEC_log/PEC_report.cpp b/examples/PEC_log/PEC_report.cpp
index 709ea78c..b088ea29 100644
--- a/examples/PEC_log/PEC_report.cpp
+++ b/examples/PEC_log/PEC_report.cpp
@@ -1204,7 +1204,7 @@ void PEC_report::loadFiles()
 
    dirwalk.walk();
 
-   u_printSize(buffer, bytes);
+   (void) u_printSize(buffer, bytes);
 
    U_MESSAGE("checked %u file(s) - skipped %u file(s)\n"
              "start processing %u file(s) for %s of data...", nfiles, nskipped, tfile->size(), buffer);
diff --git a/include/ulib/base/apex/apex_memmove.h b/include/ulib/base/apex/apex_memmove.h
index de6bc273..239e6e5c 100644
--- a/include/ulib/base/apex/apex_memmove.h
+++ b/include/ulib/base/apex/apex_memmove.h
@@ -13,7 +13,8 @@ extern U_EXPORT pvPFpvpvs apex_memmove;
  * apex_memmove written by Trevor Herselman in 2014
  *
  * FORCE `CDECL` calling convention on 32-bit builds on our function pointers, because we need it to match the original `std::memmove` definition;
- * in-case the user specified a different default function calling convention! (I specified __fastcall as my default calling convention and got errors! So I needed to add this!)
+ * in-case the user specified a different default function calling convention! (I specified __fastcall as my default calling convention and got errors!
+ * So I needed to add this!)
  */
 
 U_EXPORT void apex_memmove_dispatcher(void);
diff --git a/include/ulib/base/base.h b/include/ulib/base/base.h
index b7160cbb..4afd3601 100644
--- a/include/ulib/base/base.h
+++ b/include/ulib/base/base.h
@@ -148,6 +148,7 @@ typedef bool  (*bPFpcpv) (const char*,const void*);
 typedef void  (*vPFpvpc) (void*,char*);
 typedef void  (*vPFpvpv) (void*,void*);
 
+typedef uint32_t (*uPFdpc)   (double,char*);
 typedef uint32_t (*uPFu32pc) (uint32_t,char*);
 typedef uint32_t (*uPFu64pc) (uint64_t,char*);
 
@@ -264,43 +265,6 @@ U_EXPORT const char* u_basename(const char* restrict path) __pure;
 U_EXPORT const char* u_getsuffix(const char* restrict path, uint32_t len) __pure;
 U_EXPORT bool u_is_overlap(const char* restrict dst, const char* restrict src, size_t n);
 
-/* conversion number to string */
-extern U_EXPORT uPFu32pc u_num2str32;
-extern U_EXPORT uPFu64pc u_num2str64;
-extern U_EXPORT const char u_ctn2s[200];
-
-static inline uint32_t u_num2str32s(int32_t num, char* restrict cp)
-{
-   uint32_t bsign = (num < 0);
-
-   U_INTERNAL_TRACE("u_num2str32s(%u,%p)", num, cp)
-
-   if (bsign)
-      {
-      num = -num;
-
-      *cp++ = '-';
-      }
-
-   return bsign + u_num2str32(num, cp);
-}
-
-static inline uint32_t u_num2str64s(int64_t num, char* restrict cp)
-{
-   uint32_t bsign = (num < 0LL);
-
-   U_INTERNAL_TRACE("u_num2str64s(%lld,%p)", num, cp)
-
-   if (bsign)
-      {
-      num = -num;
-
-      *cp++ = '-';
-      }
-
-   return bsign + u_num2str64(num, cp);
-}
-
 /* Location info */
 extern U_EXPORT uint32_t u_num_line;
 extern U_EXPORT const char* restrict u_name_file;
@@ -479,6 +443,69 @@ static inline void u_gettimenow(void)
 #endif
 */
 
+/* conversion number to string */
+extern U_EXPORT uPFdpc   u_dbl2str;
+extern U_EXPORT uPFu32pc u_num2str32;
+extern U_EXPORT uPFu64pc u_num2str64;
+extern U_EXPORT const char u_ctn2s[200];
+
+static inline uint32_t u_num2str32s(int32_t num, char* restrict cp)
+{
+   uint32_t bsign = (num < 0);
+
+   U_INTERNAL_TRACE("u_num2str32s(%u,%p)", num, cp)
+
+   if (bsign)
+      {
+      num = -num;
+
+      *cp++ = '-';
+      }
+
+   return bsign + u_num2str32(num, cp);
+}
+
+static inline uint32_t u_num2str64s(int64_t num, char* restrict cp)
+{
+   uint32_t bsign = (num < 0);
+
+   U_INTERNAL_TRACE("u_num2str64s(%lld,%p)", num, cp)
+
+   if (bsign)
+      {
+      num = -num;
+
+      *cp++ = '-';
+      }
+
+   return bsign + u_num2str64(num, cp);
+}
+
+static inline uint32_t u_dtoa(double num, char* restrict cp)
+{
+   uint32_t bsign;
+
+   U_INTERNAL_TRACE("u_dtoa(%g,%p)", num, cp)
+
+   if (num == 0)
+      {
+      u_put_unalignedp32(cp, U_MULTICHAR_CONSTANT32('0','.','0','\0'));
+
+      return 3;
+      }
+
+   bsign = (num < 0);
+
+   if (bsign)
+      {
+      num = -num;
+
+      *cp++ = '-';
+      }
+
+   return bsign + u_dbl2str(num, cp);
+}
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/include/ulib/base/hash.h b/include/ulib/base/hash.h
index 7a720db2..65989c8d 100644
--- a/include/ulib/base/hash.h
+++ b/include/ulib/base/hash.h
@@ -61,10 +61,10 @@ static inline uint32_t u_xxhash64(const unsigned char* restrict t, uint32_t tlen
 #ifdef USE_HARDWARE_CRC32
 static inline uint32_t u_crc32(const unsigned char* restrict bp, uint32_t len)
 {
-   U_INTERNAL_TRACE("u_crc32(%.*s,%u)", U_min(len,128), bp, len)
-
    uint32_t h1 = 0xABAD1DEA;
 
+   U_INTERNAL_TRACE("u_crc32(%.*s,%u)", U_min(len,128), bp, len)
+
 # ifdef HAVE_ARCH64
    while (len >= sizeof(uint64_t))
       {
diff --git a/include/ulib/base/macro.h b/include/ulib/base/macro.h
index 7d8eeb6a..7912b60b 100644
--- a/include/ulib/base/macro.h
+++ b/include/ulib/base/macro.h
@@ -28,7 +28,7 @@
 
 #ifdef DEBUG_DEBUG
 #  define U_INTERNAL_TRACE(format,args...) u_internal_print(false, format"\n" , ##args);
-#  define U_INTERNAL_PRINT(format,args...) U_INTERNAL_TRACE(format,args)
+#  define U_INTERNAL_PRINT(format,args...) u_internal_print(false, format"\n" , ##args);
 #else
 #  define U_INTERNAL_TRACE(format,args...)
 #  define U_INTERNAL_PRINT(format,args...)
diff --git a/include/ulib/base/utility.h b/include/ulib/base/utility.h
index 26a1cd77..dbe30e12 100644
--- a/include/ulib/base/utility.h
+++ b/include/ulib/base/utility.h
@@ -147,7 +147,7 @@ U_EXPORT uint32_t u_memory_dump(char* restrict bp, unsigned char* restrict cp, u
 
 U_EXPORT int  u_getScreenWidth(void) __pure; /* Determine the width of the terminal we're running on */
 U_EXPORT bool u_isNumber(const char* restrict s, uint32_t n) __pure;
-U_EXPORT void u_printSize(char* restrict buffer, uint64_t bytes); /* print size using u_calcRate() */
+U_EXPORT uint32_t u_printSize(char* restrict buffer, uint64_t bytes); /* print size using u_calcRate() */
 U_EXPORT bool u_rmatch(const char* restrict haystack, uint32_t haystack_len, const char* restrict needle, uint32_t needle_len) __pure;
 
 U_EXPORT const char* u_get_mimetype(const char* restrict suffix, int* pmime_index);
@@ -518,9 +518,13 @@ static inline unsigned long u_strtoul(const char* restrict s, const char* restri
 
    U_INTERNAL_ASSERT_POINTER(s)
    U_INTERNAL_ASSERT_POINTER(e)
-   U_INTERNAL_ASSERT(u__isdigit(*s))
 
-   for (c = *s; s != e; c = *++s) val = (c - '0') + (val * 10UL);
+   for (c = *s; s != e; c = *++s)
+      {
+      U_INTERNAL_ASSERT(u__isdigit(*s))
+
+      val = (c - '0') + (val * 10UL);
+      }
 
    return val;
 }
@@ -534,9 +538,13 @@ static inline uint64_t u_strtoull(const char* restrict s, const char* restrict e
 
    U_INTERNAL_ASSERT_POINTER(s)
    U_INTERNAL_ASSERT_POINTER(e)
-   U_INTERNAL_ASSERT(u__isdigit(*s))
 
-   for (c = *s; s != e; c = *++s) val = (c - '0') + (val * 10ULL);
+   for (c = *s; s != e; c = *++s) 
+      {
+      U_INTERNAL_ASSERT(u__isdigit(*s))
+
+      val = (c - '0') + (val * 10ULL);
+      }
 
    return val;
 }
diff --git a/include/ulib/examples/wi_auth_declaration.h b/include/ulib/examples/wi_auth_declaration.h
index 619f5b9a..1bb5a90e 100644
--- a/include/ulib/examples/wi_auth_declaration.h
+++ b/include/ulib/examples/wi_auth_declaration.h
@@ -509,6 +509,38 @@ private:
    WiAuthVirtualAccessPoint& operator=(const WiAuthVirtualAccessPoint&) { return *this; }
 };
 
+static uint32_t findAnagrafica(const UString& _ip)
+{
+   U_TRACE(5, "::findAnagrafica(%V)", _ip.rep)
+
+   uint32_t pos = 0;
+
+   /**
+    * 10.8.0.156 172.16.156.0/24 111
+    * 159.213.248.233,172.25.0.0/22,213
+    */
+
+loop:
+   pos = db_anagrafica->find(_ip, pos);
+
+   U_INTERNAL_DUMP("pos = %u", pos)
+
+   if (pos != U_NOT_FOUND)
+      {
+      pos += _ip.size();
+
+      char c = db_anagrafica->c_char(pos);
+
+      if (c != ',' &&
+          u__isspace(c) == false)
+         {
+         goto loop;
+         }
+      }
+
+   U_RETURN(pos);
+}
+      
 class WiAuthNodog : public UDataStorage {
 public:
 
@@ -868,7 +900,7 @@ public:
       U_INTERNAL_ASSERT(*ap_address)
 
       int op = -1;
-      WiAuthAccessPoint* p;
+      uint32_t pos;
 
       if (ap_label->empty()) (void) ap_label->assign(U_CONSTANT_TO_PARAM("ap"));
 
@@ -907,53 +939,51 @@ public:
          {
          if (ap_address_trust == false) U_RETURN(false);
 
+         sz        = 0;
          op        = RDB_INSERT;
          port      = _port;
          status    = 0;
          hostname  = (*ap_hostname ? *ap_hostname : U_STRING_FROM_CONSTANT("hostname_empty"));
-         last_info = since = start = u_now->tv_sec;
-
-         sz                 = 1;
-         index_access_point = 0;
+         start     =
+         since     =
+         last_info = u_now->tv_sec;
 
          vec_access_point.clear();
 
-         U_NEW(WiAuthAccessPoint, p, WiAuthAccessPoint(*ap_label));
-
-         vec_access_point.push_back(p);
-
-         if (db_anagrafica)
+         if (db_anagrafica == 0 ||
+             (pos = findAnagrafica(*ap_address), pos == U_NOT_FOUND))
             {
-            /**
-             * 10.8.0.156      172.16.156.0/24 111
-             * 159.213.248.233 172.25.0.0/22   213
-             */
+            addAccessPoint();
+            }
+         else
+            {
+            bool bcsv = (db_anagrafica->c_char(pos) == ',');
 
-            uint32_t pos = db_anagrafica->find(*ap_address);
+            U_INTERNAL_DUMP("bcsv = %b", bcsv)
 
-            U_INTERNAL_DUMP("pos = %d", pos)
+            UString netmask;
+            UTokenizer tok(db_anagrafica->substr(pos));
 
-            if (pos != U_NOT_FOUND)
+            if (bcsv) tok.setDelimiter(",\n");
+
+            (void) tok.next(netmask,   (bool*)0);
+            (void) tok.next(*ap_label, (bool*)0);
+
+            U_INTERNAL_ASSERT(netmask)
+            U_INTERNAL_ASSERT(*ap_label)
+
+            addAccessPoint();
+
+            while (tok.next(*ip, (bool*)0) &&
+                   ap_address->equal(*ip))
                {
-               pos += ap_address->size();
+               (void) tok.next(netmask,   (bool*)0);
+               (void) tok.next(*ap_label, (bool*)0);
 
-               while (u__islterm(db_anagrafica->c_char(pos)) == false) ++pos;
+               U_INTERNAL_ASSERT(netmask)
+               U_INTERNAL_ASSERT(*ap_label)
 
-               UTokenizer tok(db_anagrafica->substr(pos));
-
-               while (tok.next(*ip, (bool*)0) &&
-                      ap_address->equal(*ip))
-                  {
-                  UString netmask, label;
-
-                  (void) tok.next(netmask,   (bool*)0);
-                  (void) tok.next(*ap_label, (bool*)0);
-
-                  U_INTERNAL_ASSERT(netmask)
-                  U_INTERNAL_ASSERT(*ap_label)
-
-                  addAccessPoint();
-                  }
+               addAccessPoint();
                }
             }
          }
@@ -1179,14 +1209,45 @@ public:
          }
       }
 
+   void writeToLOG(const char* op)
+      {
+      U_TRACE(5, "WiAuthUser::writeToLOG(%S)", op)
+
+      U_INTERNAL_ASSERT_POINTER(op)
+
+      getDone();
+
+      /**
+       * Example
+       * ----------------------------------------------------------------------------------------------------------------------------------------------------------------- 
+       * 2012/08/08 14:56:00 op: PASS_AUTH, uid: 33437934, ap: 00@10.8.1.2, ip: 172.16.1.172, mac: 00:14:a5:6e:9c:cb, time: 233, traffic: 342, policy: DAILY consume: true
+       * ----------------------------------------------------------------------------------------------------------------------------------------------------------------- 
+       */
+
+      U_INTERNAL_ASSERT(_mac)
+      U_INTERNAL_ASSERT(*time_done)
+      U_INTERNAL_ASSERT(*traffic_done)
+
+      ULog::log(file_LOG->getFd(), "op: %s, uid: %v, ap: %v, ip: %v, mac: %v, time: %v, traffic: %v, policy: %v",
+                                    op,     uid->rep, getAP().rep, _ip.rep, _mac.rep, time_done->rep, traffic_done->rep, getPolicy().rep);
+      }
+
    const char* updateCounter(const UString& logout, long time_connected, uint64_t traffic, bool& ask_logout)
       {
       U_TRACE(5, "WiAuthUser::updateCounter(%V,%ld,%llu,%b)", logout.rep, time_connected, traffic, ask_logout)
 
       const char* write_to_log = 0;
 
-         _time_done += time_connected;
-      _traffic_done += traffic;
+      uint32_t    time_done_save =    _time_done;
+      uint64_t traffic_done_save = _traffic_done;
+
+         _time_done = time_connected;
+      _traffic_done = traffic;
+
+      writeToLOG("INFO");
+
+         _time_done +=    time_done_save;
+      _traffic_done += traffic_done_save;
 
       if (consume)
          {
@@ -1575,29 +1636,6 @@ next:
       if (op == RDB_REPLACE) (void) db_user->putDataStorage(   *uid);
       else                   (void) db_user->insertDataStorage(*uid);
       }
-
-   void writeToLOG(const char* op)
-      {
-      U_TRACE(5, "WiAuthUser::writeToLOG(%S)", op)
-
-      U_INTERNAL_ASSERT_POINTER(op)
-
-      getDone();
-
-      /**
-       * Example
-       * ----------------------------------------------------------------------------------------------------------------------------------------------------------------- 
-       * 2012/08/08 14:56:00 op: PASS_AUTH, uid: 33437934, ap: 00@10.8.1.2, ip: 172.16.1.172, mac: 00:14:a5:6e:9c:cb, time: 233, traffic: 342, policy: DAILY consume: true
-       * ----------------------------------------------------------------------------------------------------------------------------------------------------------------- 
-       */
-
-      U_INTERNAL_ASSERT(_mac)
-      U_INTERNAL_ASSERT(*time_done)
-      U_INTERNAL_ASSERT(*traffic_done)
-
-      ULog::log(file_LOG->getFd(), "op: %s, uid: %v, ap: %v, ip: %v, mac: %v, time: %v, traffic: %v, policy: %v",
-                                    op,     uid->rep, getAP().rep, _ip.rep, _mac.rep, time_done->rep, traffic_done->rep, getPolicy().rep);
-      }
 };
 
 static UString getUserName()
@@ -1934,16 +1972,7 @@ static int checkForUserPolicy(UStringRep* key, UStringRep* data)
       {
       *uid = db_user->getKeyID();
 
-      if (user_rec->connected)
-         {
-         uint64_t traffic = user_rec->_traffic_done / (1024ULL * 1024ULL);
-
-         if (traffic)
-            {
-            U_LOGGER("*** checkForUserPolicy() UID(%v) IP(%v) MAC(%v) AP(%v) POLICY(%v) traffic: %llu ***",
-                           uid->rep, user_rec->_ip.rep, user_rec->_mac.rep, user_rec->nodog.rep, user_rec->_policy.rep, traffic);
-            }
-         }
+      if (user_rec->connected) user_rec->writeToLOG("RST_POLICY");
 
       user_rec->_time_done        =
       user_rec->_time_consumed    = 0;
@@ -3291,7 +3320,7 @@ static bool checkTimeRequest()
       }
    else
       {
-      ko = (ts->empty() && db_anagrafica);
+      ko = ts->empty();
 
       if (ko)
          {
@@ -4498,30 +4527,53 @@ static void GET_get_config()
 
                if (db_anagrafica)
                   {
-                  /**
-                   * 10.8.0.156      172.16.156.0/24 111
-                   * 159.213.248.233 172.25.0.0/22   213
-                   */
-
-                  pos = db_anagrafica->find(*ip);
-
-                  U_INTERNAL_DUMP("pos = %d", pos)
+                  pos = findAnagrafica(*ip);
 
                   if (pos != U_NOT_FOUND)
                      {
-                     pos += ip->size();
+                     bool bcsv = (db_anagrafica->c_char(pos) == ',');
 
-                     while (u__isspace(db_anagrafica->c_char(pos)) == false) ++pos;
+                     U_INTERNAL_DUMP("bcsv = %b", bcsv)
 
                      UString netmask, label;
                      UTokenizer tok(db_anagrafica->substr(pos));
 
+                     if (bcsv) tok.setDelimiter(",\n");
+
                      (void) tok.next(netmask, (bool*)0);
                      (void) tok.next(  label, (bool*)0);
 
                      U_INTERNAL_ASSERT(label)
                      U_INTERNAL_ASSERT(netmask)
 
+                     if (bcsv)
+                        {
+                        UString _ip;
+                        UVector<UString> vnetmask, vlabel;
+
+                          vlabel.push(label);
+                        vnetmask.push(netmask);
+
+                        while (tok.next(_ip, (bool*)0) &&
+                               ip->equal(_ip))
+                           {
+                           (void) tok.next(netmask, (bool*)0);
+                           (void) tok.next(  label, (bool*)0);
+
+                           U_INTERNAL_ASSERT(label)
+                           U_INTERNAL_ASSERT(netmask)
+
+                             vlabel.push(label);
+                           vnetmask.push(netmask);
+                           }
+
+                        if (vlabel.size() > 1)
+                           {
+                             label =   vlabel.join(' ');
+                           netmask = vnetmask.join(' ');
+                           }
+                        }
+
                      _body = UStringExt::substitute(_body, U_CONSTANT_TO_PARAM("172.<CCC>.<DDD>.0/24"), U_STRING_TO_PARAM(netmask));
 
                      buffer.snprintf("LOCAL_NETWORK_LABEL \"%v\"", label.rep);
diff --git a/include/ulib/utility/dtoa_milo.h b/include/ulib/utility/dtoa_milo.h
new file mode 100644
index 00000000..67d8843a
--- /dev/null
+++ b/include/ulib/utility/dtoa_milo.h
@@ -0,0 +1,397 @@
+// https://github.com/amdn/dtoa-benchmark
+
+#pragma once
+#include <assert.h>
+#include <math.h>
+
+#if defined(_MSC_VER)
+#include "msinttypes/stdint.h"
+#include <intrin.h>
+#else
+#include <stdint.h>
+#endif
+
+#define UINT64_C2(h, l) ((static_cast<uint64_t>(h) << 32) | static_cast<uint64_t>(l))
+
+struct DiyFp {
+   DiyFp() {}
+
+   DiyFp(uint64_t _f, int _e) : f(_f), e(_e) {}
+
+   DiyFp(double d) {
+      union {
+         double d;
+         uint64_t u64;
+      } u = { d };
+
+      int biased_e = (u.u64 & kDpExponentMask) >> kDpSignificandSize;
+      uint64_t significand = (u.u64 & kDpSignificandMask);
+      if (biased_e != 0) {
+         f = significand + kDpHiddenBit;
+         e = biased_e - kDpExponentBias;
+      } 
+      else {
+         f = significand;
+         e = kDpMinExponent + 1;
+      }
+   }
+
+   DiyFp operator-(const DiyFp& rhs) const {
+      assert(e == rhs.e);
+      assert(f >= rhs.f);
+      return DiyFp(f - rhs.f, e);
+   }
+
+   DiyFp operator*(const DiyFp& rhs) const {
+#if defined(_MSC_VER) && defined(_M_AMD64)
+      uint64_t h;
+      uint64_t l = _umul128(f, rhs.f, &h);
+      if (l & (uint64_t(1) << 63)) // rounding
+         h++;
+      return DiyFp(h, e + rhs.e + 64);
+#elif (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6)) && defined(__x86_64__)
+      unsigned __int128 p = static_cast<unsigned __int128>(f) * static_cast<unsigned __int128>(rhs.f);
+      uint64_t h = p >> 64;
+      uint64_t l = static_cast<uint64_t>(p);
+      if (l & (uint64_t(1) << 63)) // rounding
+         h++;
+      return DiyFp(h, e + rhs.e + 64);
+#else
+      const uint64_t M32 = 0xFFFFFFFF;
+      const uint64_t a = f >> 32;
+      const uint64_t b = f & M32;
+      const uint64_t c = rhs.f >> 32;
+      const uint64_t d = rhs.f & M32;
+      const uint64_t ac = a * c;
+      const uint64_t bc = b * c;
+      const uint64_t ad = a * d;
+      const uint64_t bd = b * d;
+      uint64_t tmp = (bd >> 32) + (ad & M32) + (bc & M32);
+      tmp += 1U << 31;  /// mult_round
+      return DiyFp(ac + (ad >> 32) + (bc >> 32) + (tmp >> 32), e + rhs.e + 64);
+#endif
+   }
+
+   DiyFp Normalize() const {
+#if defined(_MSC_VER) && defined(_M_AMD64)
+      unsigned long index;
+      _BitScanReverse64(&index, f);
+      return DiyFp(f << (63 - index), e - (63 - index));
+#elif defined(__GNUC__)
+      int s = __builtin_clzll(f);
+      return DiyFp(f << s, e - s);
+#else
+      DiyFp res = *this;
+      while (!(res.f & kDpHiddenBit)) {
+         res.f <<= 1;
+         res.e--;
+      }
+      res.f <<= (kDiySignificandSize - kDpSignificandSize - 1);
+      res.e = res.e - (kDiySignificandSize - kDpSignificandSize - 1);
+      return res;
+#endif
+   }
+
+   DiyFp NormalizeBoundary() const {
+#if defined(_MSC_VER) && defined(_M_AMD64)
+      unsigned long index;
+      _BitScanReverse64(&index, f);
+      return DiyFp (f << (63 - index), e - (63 - index));
+#else
+      DiyFp res = *this;
+      while (!(res.f & (kDpHiddenBit << 1))) {
+         res.f <<= 1;
+         res.e--;
+      }
+      res.f <<= (kDiySignificandSize - kDpSignificandSize - 2);
+      res.e = res.e - (kDiySignificandSize - kDpSignificandSize - 2);
+      return res;
+#endif
+   }
+
+   void NormalizedBoundaries(DiyFp* minus, DiyFp* plus) const {
+      DiyFp pl = DiyFp((f << 1) + 1, e - 1).NormalizeBoundary();
+      DiyFp mi = (f == kDpHiddenBit) ? DiyFp((f << 2) - 1, e - 2) : DiyFp((f << 1) - 1, e - 1);
+      mi.f <<= mi.e - pl.e;
+      mi.e = pl.e;
+      *plus = pl;
+      *minus = mi;
+   }
+
+   static const int kDiySignificandSize = 64;
+   static const int kDpSignificandSize = 52;
+   static const int kDpExponentBias = 0x3FF + kDpSignificandSize;
+   static const int kDpMinExponent = -kDpExponentBias;
+   static const uint64_t kDpExponentMask = UINT64_C2(0x7FF00000, 0x00000000);
+   static const uint64_t kDpSignificandMask = UINT64_C2(0x000FFFFF, 0xFFFFFFFF);
+   static const uint64_t kDpHiddenBit = UINT64_C2(0x00100000, 0x00000000);
+
+   uint64_t f;
+   int e;
+};
+
+inline DiyFp GetCachedPower(int e, int* K) {
+   // 10^-348, 10^-340, ..., 10^340
+   static const uint64_t kCachedPowers_F[] = {
+      UINT64_C2(0xfa8fd5a0, 0x081c0288), UINT64_C2(0xbaaee17f, 0xa23ebf76),
+      UINT64_C2(0x8b16fb20, 0x3055ac76), UINT64_C2(0xcf42894a, 0x5dce35ea),
+      UINT64_C2(0x9a6bb0aa, 0x55653b2d), UINT64_C2(0xe61acf03, 0x3d1a45df),
+      UINT64_C2(0xab70fe17, 0xc79ac6ca), UINT64_C2(0xff77b1fc, 0xbebcdc4f),
+      UINT64_C2(0xbe5691ef, 0x416bd60c), UINT64_C2(0x8dd01fad, 0x907ffc3c),
+      UINT64_C2(0xd3515c28, 0x31559a83), UINT64_C2(0x9d71ac8f, 0xada6c9b5),
+      UINT64_C2(0xea9c2277, 0x23ee8bcb), UINT64_C2(0xaecc4991, 0x4078536d),
+      UINT64_C2(0x823c1279, 0x5db6ce57), UINT64_C2(0xc2109436, 0x4dfb5637),
+      UINT64_C2(0x9096ea6f, 0x3848984f), UINT64_C2(0xd77485cb, 0x25823ac7),
+      UINT64_C2(0xa086cfcd, 0x97bf97f4), UINT64_C2(0xef340a98, 0x172aace5),
+      UINT64_C2(0xb23867fb, 0x2a35b28e), UINT64_C2(0x84c8d4df, 0xd2c63f3b),
+      UINT64_C2(0xc5dd4427, 0x1ad3cdba), UINT64_C2(0x936b9fce, 0xbb25c996),
+      UINT64_C2(0xdbac6c24, 0x7d62a584), UINT64_C2(0xa3ab6658, 0x0d5fdaf6),
+      UINT64_C2(0xf3e2f893, 0xdec3f126), UINT64_C2(0xb5b5ada8, 0xaaff80b8),
+      UINT64_C2(0x87625f05, 0x6c7c4a8b), UINT64_C2(0xc9bcff60, 0x34c13053),
+      UINT64_C2(0x964e858c, 0x91ba2655), UINT64_C2(0xdff97724, 0x70297ebd),
+      UINT64_C2(0xa6dfbd9f, 0xb8e5b88f), UINT64_C2(0xf8a95fcf, 0x88747d94),
+      UINT64_C2(0xb9447093, 0x8fa89bcf), UINT64_C2(0x8a08f0f8, 0xbf0f156b),
+      UINT64_C2(0xcdb02555, 0x653131b6), UINT64_C2(0x993fe2c6, 0xd07b7fac),
+      UINT64_C2(0xe45c10c4, 0x2a2b3b06), UINT64_C2(0xaa242499, 0x697392d3),
+      UINT64_C2(0xfd87b5f2, 0x8300ca0e), UINT64_C2(0xbce50864, 0x92111aeb),
+      UINT64_C2(0x8cbccc09, 0x6f5088cc), UINT64_C2(0xd1b71758, 0xe219652c),
+      UINT64_C2(0x9c400000, 0x00000000), UINT64_C2(0xe8d4a510, 0x00000000),
+      UINT64_C2(0xad78ebc5, 0xac620000), UINT64_C2(0x813f3978, 0xf8940984),
+      UINT64_C2(0xc097ce7b, 0xc90715b3), UINT64_C2(0x8f7e32ce, 0x7bea5c70),
+      UINT64_C2(0xd5d238a4, 0xabe98068), UINT64_C2(0x9f4f2726, 0x179a2245),
+      UINT64_C2(0xed63a231, 0xd4c4fb27), UINT64_C2(0xb0de6538, 0x8cc8ada8),
+      UINT64_C2(0x83c7088e, 0x1aab65db), UINT64_C2(0xc45d1df9, 0x42711d9a),
+      UINT64_C2(0x924d692c, 0xa61be758), UINT64_C2(0xda01ee64, 0x1a708dea),
+      UINT64_C2(0xa26da399, 0x9aef774a), UINT64_C2(0xf209787b, 0xb47d6b85),
+      UINT64_C2(0xb454e4a1, 0x79dd1877), UINT64_C2(0x865b8692, 0x5b9bc5c2),
+      UINT64_C2(0xc83553c5, 0xc8965d3d), UINT64_C2(0x952ab45c, 0xfa97a0b3),
+      UINT64_C2(0xde469fbd, 0x99a05fe3), UINT64_C2(0xa59bc234, 0xdb398c25),
+      UINT64_C2(0xf6c69a72, 0xa3989f5c), UINT64_C2(0xb7dcbf53, 0x54e9bece),
+      UINT64_C2(0x88fcf317, 0xf22241e2), UINT64_C2(0xcc20ce9b, 0xd35c78a5),
+      UINT64_C2(0x98165af3, 0x7b2153df), UINT64_C2(0xe2a0b5dc, 0x971f303a),
+      UINT64_C2(0xa8d9d153, 0x5ce3b396), UINT64_C2(0xfb9b7cd9, 0xa4a7443c),
+      UINT64_C2(0xbb764c4c, 0xa7a44410), UINT64_C2(0x8bab8eef, 0xb6409c1a),
+      UINT64_C2(0xd01fef10, 0xa657842c), UINT64_C2(0x9b10a4e5, 0xe9913129),
+      UINT64_C2(0xe7109bfb, 0xa19c0c9d), UINT64_C2(0xac2820d9, 0x623bf429),
+      UINT64_C2(0x80444b5e, 0x7aa7cf85), UINT64_C2(0xbf21e440, 0x03acdd2d),
+      UINT64_C2(0x8e679c2f, 0x5e44ff8f), UINT64_C2(0xd433179d, 0x9c8cb841),
+      UINT64_C2(0x9e19db92, 0xb4e31ba9), UINT64_C2(0xeb96bf6e, 0xbadf77d9),
+      UINT64_C2(0xaf87023b, 0x9bf0ee6b)
+   };
+   static const int16_t kCachedPowers_E[] = {
+      -1220, -1193, -1166, -1140, -1113, -1087, -1060, -1034, -1007,  -980,
+       -954,  -927,  -901,  -874,  -847,  -821,  -794,  -768,  -741,  -715,
+       -688,  -661,  -635,  -608,  -582,  -555,  -529,  -502,  -475,  -449,
+       -422,  -396,  -369,  -343,  -316,  -289,  -263,  -236,  -210,  -183,
+       -157,  -130,  -103,   -77,   -50,   -24,     3,    30,    56,    83,
+        109,   136,   162,   189,   216,   242,   269,   295,   322,   348,
+        375,   402,   428,   455,   481,   508,   534,   561,   588,   614,
+        641,   667,   694,   720,   747,   774,   800,   827,   853,   880,
+        907,   933,   960,   986,  1013,  1039,  1066
+   };
+
+   //int k = static_cast<int>(ceil((-61 - e) * 0.30102999566398114)) + 374;
+   double dk = (-61 - e) * 0.30102999566398114 + 347; // dk must be positive, so can do ceiling in positive
+   int k = static_cast<int>(dk);
+   if (k != dk)
+      k++;
+
+   unsigned index = static_cast<unsigned>((k >> 3) + 1);
+   *K = -(-348 + static_cast<int>(index << 3)); // decimal exponent no need lookup table
+
+   assert(index < sizeof(kCachedPowers_F) / sizeof(kCachedPowers_F[0]));
+   return DiyFp(kCachedPowers_F[index], kCachedPowers_E[index]);
+}
+
+inline void GrisuRound(char* buffer, int len, uint64_t delta, uint64_t rest, uint64_t ten_kappa, uint64_t wp_w) {
+   while (rest < wp_w && delta - rest >= ten_kappa &&
+         (rest + ten_kappa < wp_w ||  /// closer
+         wp_w - rest > rest + ten_kappa - wp_w)) {
+      buffer[len - 1]--;
+      rest += ten_kappa;
+   }
+}
+
+inline unsigned CountDecimalDigit32(uint32_t n) {
+   // Simple pure C++ implementation was faster than __builtin_clz version in this situation.
+   if (n < 10) return 1;
+   if (n < 100) return 2;
+   if (n < 1000) return 3;
+   if (n < 10000) return 4;
+   if (n < 100000) return 5;
+   if (n < 1000000) return 6;
+   if (n < 10000000) return 7;
+   if (n < 100000000) return 8;
+   if (n < 1000000000) return 9;
+   return 10;
+}
+
+inline void DigitGen(const DiyFp& W, const DiyFp& Mp, uint64_t delta, char* buffer, int* len, int* K) {
+   static const uint32_t kPow10[] = { 1, 10, 100, 1000, 10000, 100000, 1000000, 10000000, 100000000, 1000000000 };
+   const DiyFp one(uint64_t(1) << -Mp.e, Mp.e);
+   const DiyFp wp_w = Mp - W;
+   uint32_t p1 = static_cast<uint32_t>(Mp.f >> -one.e);
+   uint64_t p2 = Mp.f & (one.f - 1);
+   int kappa = static_cast<int>(CountDecimalDigit32(p1));
+   *len = 0;
+
+   while (kappa > 0) {
+      uint32_t d;
+      switch (kappa) {
+         case 10: d = p1 / 1000000000; p1 %= 1000000000; break;
+         case  9: d = p1 /  100000000; p1 %=  100000000; break;
+         case  8: d = p1 /   10000000; p1 %=   10000000; break;
+         case  7: d = p1 /    1000000; p1 %=    1000000; break;
+         case  6: d = p1 /     100000; p1 %=     100000; break;
+         case  5: d = p1 /      10000; p1 %=      10000; break;
+         case  4: d = p1 /       1000; p1 %=       1000; break;
+         case  3: d = p1 /        100; p1 %=        100; break;
+         case  2: d = p1 /         10; p1 %=         10; break;
+         case  1: d = p1;              p1 =           0; break;
+         default: 
+#if defined(_MSC_VER)
+            __assume(0);
+#elif __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 5)
+            __builtin_unreachable();
+#else
+            d = 0;
+#endif
+      }
+      if (d || *len)
+         buffer[(*len)++] = '0' + static_cast<char>(d);
+      kappa--;
+      uint64_t tmp = (static_cast<uint64_t>(p1) << -one.e) + p2;
+      if (tmp <= delta) {
+         *K += kappa;
+         GrisuRound(buffer, *len, delta, tmp, static_cast<uint64_t>(kPow10[kappa]) << -one.e, wp_w.f);
+         return;
+      }
+   }
+
+   // kappa = 0
+   for (;;) {
+      p2 *= 10;
+      delta *= 10;
+      char d = static_cast<char>(p2 >> -one.e);
+      if (d || *len)
+         buffer[(*len)++] = '0' + d;
+      p2 &= one.f - 1;
+      kappa--;
+      if (p2 < delta) {
+         *K += kappa;
+         GrisuRound(buffer, *len, delta, p2, one.f, wp_w.f * kPow10[-kappa]);
+         return;
+      }
+   }
+}
+
+inline void Grisu2(double value, char* buffer, int* length, int* K) {
+   const DiyFp v(value);
+   DiyFp w_m, w_p;
+   v.NormalizedBoundaries(&w_m, &w_p);
+
+   const DiyFp c_mk = GetCachedPower(w_p.e, K);
+   const DiyFp W = v.Normalize() * c_mk;
+   DiyFp Wp = w_p * c_mk;
+   DiyFp Wm = w_m * c_mk;
+   Wm.f++;
+   Wp.f--;
+   DigitGen(W, Wp, Wp.f - Wm.f, buffer, length, K);
+}
+
+inline const char* GetDigitsLut() {
+   static const char cDigitsLut[200] = {
+      '0', '0', '0', '1', '0', '2', '0', '3', '0', '4', '0', '5', '0', '6', '0', '7', '0', '8', '0', '9',
+      '1', '0', '1', '1', '1', '2', '1', '3', '1', '4', '1', '5', '1', '6', '1', '7', '1', '8', '1', '9',
+      '2', '0', '2', '1', '2', '2', '2', '3', '2', '4', '2', '5', '2', '6', '2', '7', '2', '8', '2', '9',
+      '3', '0', '3', '1', '3', '2', '3', '3', '3', '4', '3', '5', '3', '6', '3', '7', '3', '8', '3', '9',
+      '4', '0', '4', '1', '4', '2', '4', '3', '4', '4', '4', '5', '4', '6', '4', '7', '4', '8', '4', '9',
+      '5', '0', '5', '1', '5', '2', '5', '3', '5', '4', '5', '5', '5', '6', '5', '7', '5', '8', '5', '9',
+      '6', '0', '6', '1', '6', '2', '6', '3', '6', '4', '6', '5', '6', '6', '6', '7', '6', '8', '6', '9',
+      '7', '0', '7', '1', '7', '2', '7', '3', '7', '4', '7', '5', '7', '6', '7', '7', '7', '8', '7', '9',
+      '8', '0', '8', '1', '8', '2', '8', '3', '8', '4', '8', '5', '8', '6', '8', '7', '8', '8', '8', '9',
+      '9', '0', '9', '1', '9', '2', '9', '3', '9', '4', '9', '5', '9', '6', '9', '7', '9', '8', '9', '9'
+   };
+   return cDigitsLut;
+}
+
+inline uint32_t WriteExponent(int K, char* buffer) {
+   char* start = buffer;
+
+   if (K < 0) {
+      *buffer++ = '-';
+      K = -K;
+   }
+
+   if (K >= 100) {
+      *buffer++ = '0' + static_cast<char>(K / 100);
+      K %= 100;
+      const char* d = GetDigitsLut() + K * 2;
+      *buffer++ = d[0];
+      *buffer++ = d[1];
+   }
+   else if (K >= 10) {
+      const char* d = GetDigitsLut() + K * 2;
+      *buffer++ = d[0];
+      *buffer++ = d[1];
+   }
+   else
+      *buffer++ = '0' + static_cast<char>(K);
+
+   return buffer - start;
+}
+
+inline uint32_t Prettify(char* buffer, int length, int k)
+{
+   const int kk = length + k; // 10^(kk-1) <= v < 10^kk
+
+   if (length <= kk && kk <= 21)
+      {
+      // 1234e7 -> 12340000000
+      for (int i = length; i < kk; i++) buffer[i] = '0';
+
+      buffer[kk]     = '.';
+      buffer[kk + 1] = '0';
+
+      return kk + 2;
+      }
+
+   if (0 < kk && kk <= 21)
+      {
+      // 1234e-2 -> 12.34
+      memmove(&buffer[kk + 1], &buffer[kk], length - kk);
+
+      buffer[kk] = '.';
+
+      return length + 1;
+      }
+
+   if (-6 < kk && kk <= 0)
+      {
+      // 1234e-6 -> 0.001234
+      const int offset = 2 - kk;
+      memmove(&buffer[offset], &buffer[0], length);
+
+      buffer[0] = '0';
+      buffer[1] = '.';
+
+      for (int i = 2; i < offset; i++) buffer[i] = '0';
+
+      return length + offset;
+      }
+
+   if (length == 1)
+      {
+      // 1e30
+      buffer[1] = 'e';
+
+      return 2 + WriteExponent(kk - 1, &buffer[2]);
+      }
+
+   // 1234e30 -> 1.234e33
+   memmove(&buffer[2], &buffer[1], length - 1);
+   buffer[1] = '.';
+   buffer[length + 1] = 'e';
+
+   return length + 2 + WriteExponent(kk - 1, &buffer[0 + length + 2]);
+}
diff --git a/include/ulib/utility/string_ext.h b/include/ulib/utility/string_ext.h
index f3942f0c..a7d61f2f 100644
--- a/include/ulib/utility/string_ext.h
+++ b/include/ulib/utility/string_ext.h
@@ -81,22 +81,9 @@ public:
       {
       U_TRACE(0, "UStringExt::printSize(%I)", n)
 
-      UString x(22U);
-
-      u_printSize(x.data(), n);
-
-      x.size_adjust();
-
-      U_RETURN_STRING(x);
-      }
-
-   static UString numberToString(double n)
-      {
-      U_TRACE(0, "UStringExt::numberToString(%f)", n)
-
       UString x(32U);
 
-      x.snprintf("%f", n);
+      x.rep->_length = u_printSize(x.data(), n);
 
       U_RETURN_STRING(x);
       }
@@ -114,9 +101,21 @@ public:
 
    static UString numberToString(uint64_t n);
 
+   static UString numberToString(double n)
+      {
+      U_TRACE(0, "UStringExt::numberToString(%f)", n)
+
+      UString x(32U);
+      char* ptr = x.data();
+
+      ptr[(x.rep->_length = u_dtoa(n, ptr))] = '\0';
+
+      U_RETURN_STRING(x);
+      }
+
    static UString stringFromNumber(long n)
       {
-      U_TRACE(0, "UStringExt::stringFromNumber(%lld)", n)
+      U_TRACE(0, "UStringExt::stringFromNumber(%ld)", n)
 
       UString x(22U);
 
@@ -133,20 +132,24 @@ public:
       {
       U_TRACE(0, "UStringExt::appendNumber32(%V,%u)", s.rep, number)
 
-      char buffer[10];
-      char* ptr = buffer;
+      uint32_t sz = s.size();
+      char* ptr   = s.c_pointer(sz);
 
-      (void) s.append(buffer, u_num2str32(number, ptr));
+      s.rep->_length = sz + u_num2str32(number, ptr);
+
+      U_INTERNAL_ASSERT(s.invariant())
       }
 
    static void appendNumber64(UString& s, uint64_t number)
       {
       U_TRACE(0, "UStringExt::appendNumber64(%V,%llu)", s.rep, number)
 
-      char buffer[22];
-      char* ptr = buffer;
+      uint32_t sz = s.size();
+      char* ptr   = s.c_pointer(sz);
 
-      (void) s.append(buffer, u_num2str64(number, ptr));
+      s.rep->_length = sz + u_num2str64(number, ptr);
+
+      U_INTERNAL_ASSERT(s.invariant())
       }
 
    // convert letter to upper or lower case
diff --git a/m4/ac_check_package.m4 b/m4/ac_check_package.m4
index d05d44d9..debc9309 100644
--- a/m4/ac_check_package.m4
+++ b/m4/ac_check_package.m4
@@ -484,11 +484,17 @@ dnl		libssh_version=$(grep LIBSFTP_VERSION $sshdir/include/libssh/sftp.h | cut -
 			echo "${T_MD}libcurl found in $curldir${T_ME}"
 			USE_LIBCURL=yes
 			AC_DEFINE(USE_LIBCURL, 1, [Define if enable libcurL support])
-			libcurl_version=$($curldir/bin/curl-config --version 2>/dev/null | sed -e "s/libcurl //g")
+			if test x_$PKG_CONFIG != x_no; then
+				libcurl_version=$(pkg-config --modversion libcurl)
+			fi
+			if test -z "${libcurl_version}"; then
+				libcurl_version=$($curldir/bin/curl-config --version 2>/dev/null | sed -e "s/libcurl //g")
+			fi
 			if test -z "${libcurl_version}"; then
 				libcurl_version="unknown"
 			fi
-			ULIB_LIBS="-lcurl $ULIB_LIBS";
+			libcurl_linking=$($curldir/bin/curl-config --libs 2>/dev/null)
+			ULIB_LIBS="$libcurl_linking $ULIB_LIBS";
 			if test $curldir != "${CROSS_ENVIRONMENT}/" -a $curldir != "${CROSS_ENVIRONMENT}/usr" -a $curldir != "${CROSS_ENVIRONMENT}/usr/local"; then
 				CPPFLAGS="$CPPFLAGS -I$curldir/include";
 				LDFLAGS="$LDFLAGS -L$curldir/lib -Wl,-R$curldir/lib";
diff --git a/src/ulib/base/base.c b/src/ulib/base/base.c
index cc606804..a0b005c3 100644
--- a/src/ulib/base/base.c
+++ b/src/ulib/base/base.c
@@ -210,9 +210,6 @@ static uint32_t num2str32(uint32_t num, char* restrict cp)
       d1 = (num / 100) << 1;
       d2 = (num % 100) << 1;
 
-      U_INTERNAL_ASSERT_MINOR(d1, 200)
-      U_INTERNAL_ASSERT_MINOR(d2, 200)
-
       if (num >= 1000) *cp++ = u_ctn2s[d1];
       if (num >=  100) *cp++ = u_ctn2s[d1+1];
       if (num >=   10) *cp++ = u_ctn2s[d2];
@@ -230,11 +227,6 @@ static uint32_t num2str32(uint32_t num, char* restrict cp)
       d3 = (c / 100);
       d4 = (c % 100);
 
-      U_INTERNAL_ASSERT_MINOR(d1, 200)
-      U_INTERNAL_ASSERT_MINOR(d2, 200)
-      U_INTERNAL_ASSERT_MINOR(d3, 100)
-      U_INTERNAL_ASSERT_MINOR(d4, 100)
-
       if (num >= 10000000) *cp++ = u_ctn2s[d1];
       if (num >=  1000000) *cp++ = u_ctn2s[d1+1];
       if (num >=   100000) *cp++ = u_ctn2s[d2];
@@ -254,8 +246,6 @@ static uint32_t num2str32(uint32_t num, char* restrict cp)
    if (a < 10) *cp++ = '0' + (char)a;
    else
       {
-      U_INTERNAL_ASSERT_MINOR(a, 100)
-
       U_NUM2STR16(cp, a);
 
       cp += 2;
@@ -270,11 +260,6 @@ static uint32_t num2str32(uint32_t num, char* restrict cp)
    d3 = (c / 100);
    d4 = (c % 100);
 
-   U_INTERNAL_ASSERT_MINOR(d1, 100)
-   U_INTERNAL_ASSERT_MINOR(d2, 100)
-   U_INTERNAL_ASSERT_MINOR(d3, 100)
-   U_INTERNAL_ASSERT_MINOR(d4, 100)
-
    U_NUM2STR16(cp,   d1);
    U_NUM2STR16(cp+2, d2);
    U_NUM2STR16(cp+4, d3);
@@ -398,6 +383,9 @@ static uint32_t num2str64(uint64_t num, char* restrict cp)
    return (cp + 16 - start);
 }
 
+static uint32_t dtoa(double num, char* restrict cp) { return sprintf(cp, "%g", num); }
+
+uPFdpc   u_dbl2str   = dtoa;
 uPFu32pc u_num2str32 = num2str32;
 uPFu64pc u_num2str64 = num2str64;
 
@@ -861,7 +849,7 @@ bool u_setStartTime(void)
 
 void u_init_ulib(char** restrict argv)
 {
-   U_INTERNAL_TRACE("u_init_ulib()")
+   U_INTERNAL_TRACE("u_init_ulib(%p)", argv)
 
    u_setPid();
 
@@ -888,13 +876,13 @@ void u_init_ulib(char** restrict argv)
    __get_cpuid(1, &cpuid[0], &cpuid[1], &cpuid[2], &cpuid[3]);
 # endif
 # ifndef bit_SSE2
-#  define bit_SSE2 (1 << 26) /* Taken from GCC <cpuid.h> ... just more visual & descriptive! */
+# define bit_SSE2 (1 << 26) /* Taken from GCC <cpuid.h> ... just more visual & descriptive! */
 # endif
 # ifndef bit_SSSE3
-#  define bit_SSSE3 (1 << 9)
+# define bit_SSSE3 (1 << 9)
 # endif
 # ifndef bit_SSE4_2
-#  define bit_SSE4_2 (1 << 20)
+# define bit_SSE4_2 (1 << 20)
 # endif
 # if defined(_M_X64) || defined(__x86_64__)  /* 64-bit */
         if ((cpuid[2] & bit_SSE4_2) != 0) u_flag_sse = 42; /* detect SSE4.2, available on Core i and newer processors, they include "fast unaligned" memory access */
@@ -964,7 +952,7 @@ void u_init_ulib(char** restrict argv)
  * the array indeterminate
  */
 
-uint32_t u_strftime1(char* restrict s, uint32_t maxsize, const char* restrict format)
+uint32_t u_strftime1(char* restrict buffer, uint32_t maxsize, const char* restrict format)
 {
    static const int   day_name_len[7]  = { 6, 6, 7, 9, 8, 6, 8 };
    static const int month_name_len[12] = { 7, 8, 5, 5, 3, 4, 4, 6, 9, 7, 8, 8 };
@@ -1059,17 +1047,20 @@ uint32_t u_strftime1(char* restrict s, uint32_t maxsize, const char* restrict fo
       (char*)&&case_z-(char*)&&cdefault /* 'z' */
    };
 
-   char ch;                      /* character from format */
-   int n, val;                   /* handy integer (short term usage) */
-   uint32_t count = 0;           /* return value accumulator */
-   const char* restrict fmark;   /* for remembering a place in format */
+   int n, val;                 /* handy integer (short term usage) */
+   const char* restrict fmark; /* for remembering a place in format */
+
+   char ch;          /* character from format */
+   uint32_t ret = 0; /* return value accumulator */
+
+   char* restrict bp = buffer;
 
    U_INTERNAL_TRACE("u_strftime1(%u,%s)", maxsize, format)
 
    U_INTERNAL_ASSERT_POINTER(format)
    U_INTERNAL_ASSERT_MAJOR(maxsize, 0)
 
-   while (count < maxsize)
+   while (ret < maxsize)
       {
       fmark = format;
 
@@ -1082,7 +1073,11 @@ uint32_t u_strftime1(char* restrict s, uint32_t maxsize, const char* restrict fo
 
       if ((n = (format - fmark)) != 0)
          {
-         while (n--) s[count++] = *fmark++;
+         ret += n;
+
+         u__memcpy(bp, fmark, n, __PRETTY_FUNCTION__);
+
+         bp += n;
          }
 
       if (ch == '\0') break;
@@ -1094,13 +1089,17 @@ uint32_t u_strftime1(char* restrict s, uint32_t maxsize, const char* restrict fo
       if (u__isalpha(ch) == false)
          {
 cdefault:
-         s[count++] = '%'; /* "%%" prints % */
+         *bp++ = '%'; /* "%%" prints % */
+
+         ++ret;
 
          if (ch != '%') /* "%?" prints %?, unless ? is 0: pretend it was %c with argument ch */
             {
             if (ch == '\0') break;
 
-            s[count++] = ch;
+            *bp++ = ch;
+
+            ++ret;
             }
 
          continue;
@@ -1111,314 +1110,336 @@ cdefault:
       goto *((char*)&&cdefault + dispatch_table[ch-'A']);
 
 case_A: /* %A The full name for the day of the week */
+      (void) u__memcpy(bp, u_day_name[u_strftime_tm.tm_wday], day_name_len[u_strftime_tm.tm_wday], __PRETTY_FUNCTION__);
 
-      (void) u__memcpy(s+count, u_day_name[u_strftime_tm.tm_wday], day_name_len[u_strftime_tm.tm_wday], __PRETTY_FUNCTION__);
-                         count +=                                  day_name_len[u_strftime_tm.tm_wday];
+      bp  += day_name_len[u_strftime_tm.tm_wday];
+      ret += day_name_len[u_strftime_tm.tm_wday];
 
       continue;
 
 case_B: /* %B The full name of the month */
+      (void) u__memcpy(bp, u_month_name[u_strftime_tm.tm_mon], month_name_len[u_strftime_tm.tm_mon], __PRETTY_FUNCTION__);
 
-      (void) u__memcpy(s+count, u_month_name[u_strftime_tm.tm_mon], month_name_len[u_strftime_tm.tm_mon], __PRETTY_FUNCTION__);
-                         count +=                                   month_name_len[u_strftime_tm.tm_mon];
+      bp  += month_name_len[u_strftime_tm.tm_mon];
+      ret += month_name_len[u_strftime_tm.tm_mon];
 
       continue;
 
 case_H: /* %H The hour (on a 24-hour clock), formatted with two digits */
-      U_INTERNAL_ASSERT(count <= (maxsize-2))
+      U_INTERNAL_ASSERT(ret <= (maxsize-2))
 
-   /* if (count >= (maxsize - 2)) return 0; */
+   /* if (ret >= (maxsize - 2)) return 0; */
 
-      U_NUM2STR16(s+count, u_strftime_tm.tm_hour);
+      U_NUM2STR16(bp, u_strftime_tm.tm_hour);
 
-      count += 2;
+      bp  += 2;
+      ret += 2;
 
       continue;
 
 case_I: /* %I The hour (on a 12-hour clock), formatted with two digits */
-      U_INTERNAL_ASSERT(count <= (maxsize-2))
+      U_INTERNAL_ASSERT(ret <= (maxsize-2))
 
-   /* if (count >= (maxsize - 2)) return 0; */
+   /* if (ret >= (maxsize - 2)) return 0; */
 
       if (u_strftime_tm.tm_hour == 0 ||
           u_strftime_tm.tm_hour == 12)
          {
-         u_put_unalignedp16(s+count, U_MULTICHAR_CONSTANT16('1', '2'));
+         u_put_unalignedp16(bp, U_MULTICHAR_CONSTANT16('1', '2'));
          }
       else
          {
          val = u_strftime_tm.tm_hour % 12;
 
-         u_put_unalignedp16(s+count, U_MULTICHAR_CONSTANT16('0' + (val >= 10 ? (val / 10) : 0),
-                                                            '0' + (val  % 10)));
+         u_put_unalignedp16(bp, U_MULTICHAR_CONSTANT16('0' + (val >= 10 ? (val / 10) : 0),
+                                                       '0' + (val  % 10)));
          }
 
-      count += 2;
+      bp  += 2;
+      ret += 2;
 
       continue;
 
 case_M: /* %M The minute, formatted with two digits */
-      U_INTERNAL_ASSERT(count <= (maxsize-2))
+      U_INTERNAL_ASSERT(ret <= (maxsize-2))
 
-   /* if (count >= (maxsize - 2)) return 0; */
+   /* if (ret >= (maxsize - 2)) return 0; */
 
-      U_NUM2STR16(s+count, u_strftime_tm.tm_min);
+      U_NUM2STR16(bp, u_strftime_tm.tm_min);
 
-      count += 2;
+      bp  += 2;
+      ret += 2;
 
       continue;
 
 case_S: /* %S The second, formatted with two digits */
-      U_INTERNAL_ASSERT(count <= (maxsize-2))
+      U_INTERNAL_ASSERT(ret <= (maxsize-2))
 
-   /* if (count >= (maxsize - 2)) return 0; */
+   /* if (ret >= (maxsize - 2)) return 0; */
 
-      U_NUM2STR16(s+count, u_strftime_tm.tm_sec);
+      U_NUM2STR16(bp, u_strftime_tm.tm_sec);
 
-      count += 2;
+      bp  += 2;
+      ret += 2;
 
       continue;
 
 case_T: /* %X A string representing the full time of day (hours, minutes, and seconds), in a format like 13:13:13 - %T The time in 24-hour notation (%H:%M:%S) (SU) */
-      U_INTERNAL_ASSERT(count <= (maxsize-8))
+      U_INTERNAL_ASSERT(ret <= (maxsize-8))
 
-   /* if (count >= (maxsize - 8)) return 0; */
+   /* if (ret >= (maxsize - 8)) return 0; */
 
-      U_NUM2STR64(s+count, ':', u_strftime_tm.tm_hour, u_strftime_tm.tm_min, u_strftime_tm.tm_sec);
+      U_NUM2STR64(bp, ':', u_strftime_tm.tm_hour, u_strftime_tm.tm_min, u_strftime_tm.tm_sec);
 
-      count += 8;
+      bp  += 8;
+      ret += 8;
 
       continue;
 
 case_U: /* %U The week number, formatted with two digits (from 0 to 53; week number 1 is taken as beginning with the first Sunday in a year). See also %W */
-      U_INTERNAL_ASSERT(count <= (maxsize-2))
+      U_INTERNAL_ASSERT(ret <= (maxsize-2))
 
-   /* if (count >= (maxsize - 2)) return 0; */
+   /* if (ret >= (maxsize - 2)) return 0; */
 
-      U_NUM2STR16(s+count, (u_strftime_tm.tm_yday + 7 - u_strftime_tm.tm_wday) / 7);
+      U_NUM2STR16(bp, (u_strftime_tm.tm_yday + 7 - u_strftime_tm.tm_wday) / 7);
 
-      count += 2;
+      bp  += 2;
+      ret += 2;
 
       continue;
 
 case_W: /* %W Another version of the week number: like %U, but counting week 1 as beginning with the first Monday in a year */
-      U_INTERNAL_ASSERT(count <= (maxsize-2))
+      U_INTERNAL_ASSERT(ret <= (maxsize-2))
 
-   /* if (count >= (maxsize - 2)) return 0; */
+   /* if (ret >= (maxsize - 2)) return 0; */
 
-      U_NUM2STR16(s+count, (u_strftime_tm.tm_yday + ((8-u_strftime_tm.tm_wday) % 7)) / 7);
+      U_NUM2STR16(bp, (u_strftime_tm.tm_yday + ((8-u_strftime_tm.tm_wday) % 7)) / 7);
 
-      count += 2;
+      bp  += 2;
+      ret += 2;
 
       continue;
 
 case_Y: /* %Y The full year, formatted with four digits to include the century */
-      U_INTERNAL_ASSERT(count <= (maxsize-4))
+      U_INTERNAL_ASSERT(ret <= (maxsize-4))
 
-   /* if (count >= (maxsize - 4)) return 0; */
+   /* if (ret >= (maxsize - 4)) return 0; */
 
-      (void) sprintf(s+count, "%.4d", 1900 + u_strftime_tm.tm_year);
+      (void) sprintf(bp, "%.4d", 1900 + u_strftime_tm.tm_year);
 
-      U_INTERNAL_ASSERT_EQUALS(strlen(s+count), 4)
+      U_INTERNAL_ASSERT_EQUALS(strlen(bp), 4)
 
-      count += 4;
+      bp  += 4;
+      ret += 4;
 
       continue;
 
 case_Z: /* %Z Defined by ANSI C as eliciting the time zone if available */
       n = u__strlen(tzname[u_daylight], __PRETTY_FUNCTION__);
 
-      U_INTERNAL_ASSERT(count <= (maxsize-n))
+      U_INTERNAL_ASSERT(ret <= (maxsize-n))
 
-   /* if (count >= (maxsize - n)) return 0; */
+   /* if (ret >= (maxsize - n)) return 0; */
 
-      (void) u__memcpy(s+count, tzname[u_daylight], n, __PRETTY_FUNCTION__);
+      (void) u__memcpy(bp, tzname[u_daylight], n, __PRETTY_FUNCTION__);
 
-      count += n;
+      bp  += n;
+      ret += n;
 
       continue;
 
 case_a: /* %a An abbreviation for the day of the week */
+      u_put_unalignedp32(bp, U_MULTICHAR_CONSTANT32(u_day_name[u_strftime_tm.tm_wday][0],
+                                                    u_day_name[u_strftime_tm.tm_wday][1],
+                                                    u_day_name[u_strftime_tm.tm_wday][2],' '));
 
-      u_put_unalignedp32(s+count, U_MULTICHAR_CONSTANT32(u_day_name[u_strftime_tm.tm_wday][0],
-                                                         u_day_name[u_strftime_tm.tm_wday][1],
-                                                         u_day_name[u_strftime_tm.tm_wday][2],' '));
-
-      count += 3;
+      bp  += 3;
+      ret += 3;
 
       continue;
 
 case_b: /* %b An abbreviation for the month name - %h Equivalent to %b (SU) */
+      u_put_unalignedp32(bp, U_MULTICHAR_CONSTANT32(u_month_name[u_strftime_tm.tm_mon][0],
+                                                    u_month_name[u_strftime_tm.tm_mon][1],
+                                                    u_month_name[u_strftime_tm.tm_mon][2],' '));
 
-      u_put_unalignedp32(s+count, U_MULTICHAR_CONSTANT32(u_month_name[u_strftime_tm.tm_mon][0],
-                                                         u_month_name[u_strftime_tm.tm_mon][1],
-                                                         u_month_name[u_strftime_tm.tm_mon][2],' '));
-
-      count += 3;
+      bp  += 3;
+      ret += 3;
 
       continue;
 
 case_c: /* %c A string representing the complete date and time, in the form Mon Apr 01 13:13:13 1992 */
-      U_INTERNAL_ASSERT(count <= (maxsize-24))
+      U_INTERNAL_ASSERT(ret <= (maxsize-24))
 
-   // if (count >= (maxsize - 24)) return 0;
+   // if (ret >= (maxsize - 24)) return 0;
 
-      u_put_unalignedp32(s+count, U_MULTICHAR_CONSTANT32(u_day_name[u_strftime_tm.tm_wday][0],
-                                                         u_day_name[u_strftime_tm.tm_wday][1],
-                                                         u_day_name[u_strftime_tm.tm_wday][2],' '));
+      u_put_unalignedp32(bp, U_MULTICHAR_CONSTANT32(u_day_name[u_strftime_tm.tm_wday][0],
+                                                    u_day_name[u_strftime_tm.tm_wday][1],
+                                                    u_day_name[u_strftime_tm.tm_wday][2],' '));
 
-      u_put_unalignedp32(s+count+4, U_MULTICHAR_CONSTANT32(u_month_name[u_strftime_tm.tm_mon][0],
-                                                           u_month_name[u_strftime_tm.tm_mon][1],
-                                                           u_month_name[u_strftime_tm.tm_mon][2],' '));
+      u_put_unalignedp32(bp+4, U_MULTICHAR_CONSTANT32(u_month_name[u_strftime_tm.tm_mon][0],
+                                                      u_month_name[u_strftime_tm.tm_mon][1],
+                                                      u_month_name[u_strftime_tm.tm_mon][2],' '));
 
-      (void) sprintf(s+count+8, "%.2d %2.2d:%2.2d:%2.2d %.4d", u_strftime_tm.tm_mday, u_strftime_tm.tm_hour,
-                                                               u_strftime_tm.tm_min,  u_strftime_tm.tm_sec,
-                                                               1900 + u_strftime_tm.tm_year);
+      (void) sprintf(bp+8, "%.2d %2.2d:%2.2d:%2.2d %.4d", u_strftime_tm.tm_mday, u_strftime_tm.tm_hour,
+                                                          u_strftime_tm.tm_min,  u_strftime_tm.tm_sec,
+                                                          1900 + u_strftime_tm.tm_year);
 
-      U_INTERNAL_ASSERT_EQUALS(strlen(s+count), 8+17)
+      U_INTERNAL_ASSERT_EQUALS(strlen(bp), 8+17)
 
-      count += 8+17;
+      bp  += 8+17;
+      ret += 8+17;
 
       continue;
 
 case_d: /* %d The day of the month, formatted with two digits */
-      U_INTERNAL_ASSERT(count <= (maxsize-2))
+      U_INTERNAL_ASSERT(ret <= (maxsize-2))
 
-   /* if (count >= (maxsize - 2)) return 0; */
+   /* if (ret >= (maxsize - 2)) return 0; */
 
-      U_NUM2STR16(s+count, u_strftime_tm.tm_mday);
+      U_NUM2STR16(bp, u_strftime_tm.tm_mday);
 
-      count += 2;
+      bp  += 2;
+      ret += 2;
 
       continue;
 
 case_e: /* %e Like %d, the day of the month as a decimal number, but a leading zero is replaced by a space */
-      U_INTERNAL_ASSERT(count <= (maxsize-2))
+      U_INTERNAL_ASSERT(ret <= (maxsize-2))
 
-   /* if (count >= (maxsize - 2)) return 0; */
+   /* if (ret >= (maxsize - 2)) return 0; */
 
       val = (u_strftime_tm.tm_mday >= 10 ? (u_strftime_tm.tm_mday / 10) : 0);
 
-      u_put_unalignedp16(s+count, U_MULTICHAR_CONSTANT16(val ? '0' + val : ' ',
-                                                               '0' + (u_strftime_tm.tm_mday % 10)));
+      u_put_unalignedp16(bp, U_MULTICHAR_CONSTANT16(val ? '0' + val : ' ',
+                                                          '0' + (u_strftime_tm.tm_mday % 10)));
 
-      count += 2;
+      bp  += 2;
+      ret += 2;
 
       continue;
 
 case_j: /* %j The count of days in the year, formatted with three digits (from 1 to 366) */
-      U_INTERNAL_ASSERT(count <= (maxsize-3))
+      U_INTERNAL_ASSERT(ret <= (maxsize-3))
 
-   /* if (count >= (maxsize - 3)) return 0; */
+   /* if (ret >= (maxsize - 3)) return 0; */
 
-      (void) sprintf(s+count, "%.3d", u_strftime_tm.tm_yday+1);
+      (void) sprintf(bp, "%.3d", u_strftime_tm.tm_yday+1);
 
-      U_INTERNAL_ASSERT_EQUALS(strlen(s+count), 3)
+      U_INTERNAL_ASSERT_EQUALS(strlen(bp), 3)
 
-      count += 3;
+      bp  += 3;
+      ret += 3;
 
       continue;
 
 case_m: /* %m The month number, formatted with two digits */
-      U_INTERNAL_ASSERT(count <= (maxsize-2))
+      U_INTERNAL_ASSERT(ret <= (maxsize-2))
 
-   /* if (count >= (maxsize - 2)) return 0; */
+   /* if (ret >= (maxsize - 2)) return 0; */
 
-      U_NUM2STR16(s+count, u_strftime_tm.tm_mon+1);
+      U_NUM2STR16(bp, u_strftime_tm.tm_mon+1);
 
-      count += 2;
+      bp  += 2;
+      ret += 2;
 
       continue;
 
 case_p: /* %p Either AM or PM as appropriate */
-      U_INTERNAL_ASSERT(count <= (maxsize-2))
+      U_INTERNAL_ASSERT(ret <= (maxsize-2))
 
-   /* if (count >= (maxsize - 2)) return 0; */
+   /* if (ret >= (maxsize - 2)) return 0; */
 
-      u_put_unalignedp16(s+count, U_MULTICHAR_CONSTANT16(u_strftime_tm.tm_hour < 12 ? 'A' : 'P','M'));
+      u_put_unalignedp16(bp, U_MULTICHAR_CONSTANT16(u_strftime_tm.tm_hour < 12 ? 'A' : 'P','M'));
 
-      count += 2;
+      bp  += 2;
+      ret += 2;
 
       continue;
 
 case_w: /* %w A single digit representing the day of the week: Sunday is day 0 */
-      U_INTERNAL_ASSERT(count <= (maxsize-1))
+      U_INTERNAL_ASSERT(ret <= (maxsize-1))
 
-   /* if (count >= (maxsize - 1)) return 0; */
+   /* if (ret >= (maxsize - 1)) return 0; */
 
-      s[count++] = '0' + (u_strftime_tm.tm_wday % 10);
+      *bp++ = '0' + (u_strftime_tm.tm_wday % 10);
+
+      ++ret;
 
       continue;
 
 case_x: /* %x A string representing the complete date, in a format like Mon Apr 01 1992 */
-      U_INTERNAL_ASSERT(count <= (maxsize-15))
+      U_INTERNAL_ASSERT(ret <= (maxsize-15))
 
-   /* if (count >= (maxsize - 15)) return 0; */
+   /* if (ret >= (maxsize - 15)) return 0; */
 
-      u_put_unalignedp32(s+count, U_MULTICHAR_CONSTANT32(u_day_name[u_strftime_tm.tm_wday][0],
-                                                         u_day_name[u_strftime_tm.tm_wday][1],
-                                                         u_day_name[u_strftime_tm.tm_wday][2],' '));
+      u_put_unalignedp32(bp, U_MULTICHAR_CONSTANT32(u_day_name[u_strftime_tm.tm_wday][0],
+                                                    u_day_name[u_strftime_tm.tm_wday][1],
+                                                    u_day_name[u_strftime_tm.tm_wday][2],' '));
 
-      u_put_unalignedp32(s+count+4, U_MULTICHAR_CONSTANT32(u_month_name[u_strftime_tm.tm_mon][0],
-                                                           u_month_name[u_strftime_tm.tm_mon][1],
-                                                           u_month_name[u_strftime_tm.tm_mon][2],' '));
+      u_put_unalignedp32(bp+4, U_MULTICHAR_CONSTANT32(u_month_name[u_strftime_tm.tm_mon][0],
+                                                      u_month_name[u_strftime_tm.tm_mon][1],
+                                                      u_month_name[u_strftime_tm.tm_mon][2],' '));
 
-      (void) sprintf(s+count+8, "%.2d %.4d", u_strftime_tm.tm_mday, 1900 + u_strftime_tm.tm_year);
+      (void) sprintf(bp+8, "%.2d %.4d", u_strftime_tm.tm_mday, 1900 + u_strftime_tm.tm_year);
 
-      U_INTERNAL_ASSERT_EQUALS(strlen(s+count), 8+7)
+      U_INTERNAL_ASSERT_EQUALS(strlen(bp), 8+7)
 
-      count += 8+7;
+      bp  += 8+7;
+      ret += 8+7;
 
       continue;
 
 case_y: /* %y The last two digits of the year */
-      U_INTERNAL_ASSERT(count <= (maxsize-2))
+      U_INTERNAL_ASSERT(ret <= (maxsize-2))
 
-   /* if (count >= (maxsize - 2)) return 0; */
+   /* if (ret >= (maxsize - 2)) return 0; */
 
       /**
        * The year could be greater than 100, so we need the value modulo 100.
        * The year could be negative, so we need to correct for a possible negative remainder
        */
 
-      U_NUM2STR16(s+count, ((u_strftime_tm.tm_year % 100) + 100) % 100);
+      U_NUM2STR16(bp, ((u_strftime_tm.tm_year % 100) + 100) % 100);
 
-      count += 2;
+      bp  += 2;
+      ret += 2;
 
       continue;
 
 case_z: /* %z The +hhmm or -hhmm numeric timezone (that is, the hour and minute offset from UTC) */
-      U_INTERNAL_ASSERT(count <= (maxsize-5))
+      U_INTERNAL_ASSERT(ret <= (maxsize-5))
 
-   /* if (count >= (maxsize - 5)) return 0; */
+   /* if (ret >= (maxsize - 5)) return 0; */
 
       val = (u_now_adjust / 3600);
 
       if (val > 0)
          {
-         s[count++] = '+';
+         *bp++ = '+';
 
-         U_NUM2STR16(s+count, val);
+         U_NUM2STR16(bp, val);
          }
       else
          {
-         s[count++] = '-';
+         *bp++ = '-';
 
-         U_NUM2STR16(s+count, -val);
+         U_NUM2STR16(bp, -val);
          }
 
-      U_NUM2STR16(s+count+2, u_now_adjust % 3600);
+      U_NUM2STR16(bp+3, u_now_adjust % 3600);
 
-      count += 4;
+      bp  += 5;
+      ret += 5;
       }
 
-   U_INTERNAL_PRINT("count = %u maxsize = %u", count, maxsize)
+   U_INTERNAL_PRINT("ret = %u maxsize = %u", ret, maxsize)
 
-   if (count < maxsize) s[count] = '\0';
+   if (ret < maxsize) *bp = '\0';
 
-   U_INTERNAL_ASSERT(count <= maxsize)
+   U_INTERNAL_ASSERT(ret <= maxsize)
 
-   return count;
+   return ret;
 }
 
 uint32_t u_strftime2(char* restrict s, uint32_t maxsize, const char* restrict format, time_t t)
@@ -1601,7 +1622,6 @@ static const char* tab_color[] = { U_RESET_STR,
 #endif
 
 /**
- * ----------------------------------------------------------------------------
  * Print with format extension: bBCDHMNOPQrRSUvVYwW
  * ----------------------------------------------------------------------------
  * '%b': print bool ("true" or "false")
@@ -1647,7 +1667,7 @@ uint32_t u__vsnprintf(char* restrict buffer, uint32_t buffer_size, const char* r
       (char*)&&case_space-(char*)&&cdefault, /* ' ' */
       0,/* '!' */
       0,/* '"' */
-      (char*)&&case_number-(char*)&&cdefault,/* '#' */
+      (char*)&&case_alt-(char*)&&cdefault,/* '#' */
       0,/* '$' */
       0,/* '%' */
       0,/* '&' */
@@ -1746,29 +1766,36 @@ uint32_t u__vsnprintf(char* restrict buffer, uint32_t buffer_size, const char* r
    int dprec;   /* a copy of prec if [diouxX], 0 otherwise */
    int fieldsz; /* field size expanded by sign, dpad etc */
 
-   char sign;                      /* sign prefix (' ', '+', '-', or \0) */
-   const char* restrict fmark;     /* for remembering a place in format */
-   unsigned char buf_number[32];   /* space for %[cdiouxX] */
-   unsigned char* restrict cp = 0; /* handy char pointer (short term usage) */
-
-   uint64_t argument = 0;          /* integer arguments %[diIouxX] */
-   enum { OCT, DEC, HEX } base;    /* base for [diIouxX] conversion */
-
-   int flags; /* flags as above */
+   time_t t;
+   char sign;                   /* sign prefix (' ', '+', '-', or \0) */
+   unsigned char c;
+   uint64_t argument;           /* integer arguments %[diIouxX] */
+   int i, n, remaining;         /* handy integer (short term usage) */
+   struct U_DATA udata;
+   char* restrict pbase;
+   uint32_t len, maxlen;
+   unsigned char buf[32];       /* space for %[cdiouxX] or fmt for float/double */
+   struct ustringrep* pstr;
+   const char* restrict fmark;  /* for remembering a place in format */
+   unsigned char* restrict cp;  /* handy char pointer (short term usage) */
+   enum { OCT, DEC, HEX } base; /* base for [diIouxX] conversion */
+   const char* restrict fmtdate;
 
    /* Flags used during conversion */
 
-#  define LONGINT            0x001 /* long integer */
-#  define LLONGINT           0x002 /* long long integer */
-#  define LONGDBL            0x004 /* long double */
-#  define SHORTINT           0x008 /* short integer */
-#  define ALT                0x010 /* alternate form */
-#  define LADJUST            0x020 /* left adjustment */
-#  define ZEROPAD            0x040 /* zero (as opposed to blank) */
-#  define HEXPREFIX          0x080 /* add 0x or 0X prefix */
-#  define THOUSANDS_GROUPED  0x100 /* For decimal conversion (i,d,u,f,F,g,G) the output is to be grouped with thousands */
+   int flags;
 
-   /* To extend shorts properly, we need both signed and uint32_t argument extraction methods */
+#  define LONGINT           0x001 /* long integer */
+#  define LLONGINT          0x002 /* long long integer */
+#  define LONGDBL           0x004 /* long double */
+#  define SHORTINT          0x008 /* short integer */
+#  define ALT               0x010 /* alternate form */
+#  define LADJUST           0x020 /* left adjustment */
+#  define ZEROPAD           0x040 /* zero (as opposed to blank) */
+#  define HEXPREFIX         0x080 /* add 0x or 0X prefix */
+#  define THOUSANDS_GROUPED 0x100 /* For decimal conversion (i,d,u,f,F,g,G) the output is to be grouped with thousands */
+
+   /* To extend shorts properly, we need both signed and unsigned argument extraction methods */
 
 #  define VA_ARG(type) va_arg(argp, type)
 
@@ -1781,20 +1808,10 @@ uint32_t u__vsnprintf(char* restrict buffer, uint32_t buffer_size, const char* r
                   flags & SHORTINT ? (uint64_t)(uint16_t) VA_ARG(int) : \
                                      (uint64_t)           VA_ARG(unsigned int))
 
-   /* Scan the format for conversions (`%' character) */
-
    char ch;          /* character from format */
-   time_t t;
    uint32_t ret = 0; /* return value accumulator */
-   unsigned char c;
-   struct U_DATA udata;
-   char* restrict pbase;
-   struct ustringrep* pstr;
-   const char* restrict ccp;
+
    char* restrict bp = buffer;
-   unsigned char fmt_float[32];
-   const char* restrict fmtdate;
-   int i, n, len, maxlen, remaining; /* handy integer (short term usage) */
 #ifdef DEBUG
    const char* restrict format_save = format;
 #endif
@@ -1807,6 +1824,8 @@ uint32_t u__vsnprintf(char* restrict buffer, uint32_t buffer_size, const char* r
       {
       U_INTERNAL_ERROR(ret <= buffer_size, "BUFFER OVERFLOW at u__vsnprintf() ret = %u buffer_size = %u format = \"%s\"", ret, buffer_size, format_save);
 
+      /* Scan the format for conversions ('%' character) */
+
       fmark = format;
 
       while ((ch = *format) != '\0')
@@ -1820,14 +1839,18 @@ uint32_t u__vsnprintf(char* restrict buffer, uint32_t buffer_size, const char* r
          {
          ret += n;
 
-         while (n--) *bp++ = *fmark++;
+         u__memcpy(bp, fmark, n, __PRETTY_FUNCTION__);
+
+         bp += n;
          }
 
       if (ch == '\0') break;
 
+      sign  = 0;
       prec  = -1;
-      sign  = '\0';
-      width = flags = dprec = 0;
+      width =
+      flags =
+      dprec = 0;
 
       ++format; /* skip over '%' */
 
@@ -1835,7 +1858,7 @@ rflag:
       ch = *format++;
 
 reswitch:
-      U_INTERNAL_PRINT("prec = %d ch = %c", prec, ch)
+      U_INTERNAL_PRINT("prec = %d sign = %d u__isprintf(%c) = %u", prec, sign, ch, u__isprintf(ch))
 
       if (UNLIKELY(u__isprintf(ch) == false))
          {
@@ -1861,11 +1884,11 @@ cdefault:
       goto *((char*)&&cdefault + dispatch_table[ch-' ']);
 
 case_space: /* If the space and + flags both appear, the space flag will be ignored */
-      if (sign == '\0') sign = ' ';
+      if (sign == 0) sign = ' ';
 
       goto rflag;
 
-case_number: /* field flag characters: # */
+case_alt: /* field flag characters: # */
       flags |= ALT;
 
       goto rflag;
@@ -1892,7 +1915,11 @@ case_plus: /* field flag characters: + */
       goto rflag;
 
 case_period: /* The field precision '.' */
-      if ((ch = *format++) == '*')
+      if ((ch = *format++) != '*')
+         {
+         for (prec = 0; u__isdigit(ch); ch = *format++) prec = (prec*10) + (ch-'0');
+         }
+      else
          {
          prec = VA_ARG(int);
 
@@ -1902,68 +1929,67 @@ case_period: /* The field precision '.' */
 
          if (u__tolower(ch) == 's') goto case_str;
          }
-      else
-         {
-         for (prec = 0; u__isdigit(ch); ch = *format++) prec = (prec*10) + (ch-'0');
-         }
 
       goto reswitch;
 
 case_zero: /* Note that 0 is taken as a flag, not as the beginning of a field width */
-      if (!(flags & LADJUST)) flags |= ZEROPAD; /* '-' disables '0' */
+      if ((flags & LADJUST) == 0) flags |= ZEROPAD; /* '-' disables '0' */
 
       goto rflag;
 
 case_digit: /* field width: [1-9] - An optional decimal digit string (with nonzero first digit) specifying a minimum field width */
-      n = 0;
+      U_INTERNAL_ASSERT_EQUALS(width, 0)
 
       do {
-         n  = n*10 + (ch-'0');
+         width = width * 10 + (ch-'0');
+
          ch = *format++;
          }
       while (u__isdigit(ch));
 
-      width = n;
-
       goto reswitch;
 
 case_float:
-      fmt_float[0] = '%';
-
-      cp = fmt_float + 1;
-
-      if ((flags & ALT)     != 0)           *cp++ = '#';
-      if ((flags & ZEROPAD) != 0)           *cp++ = '0';
-      if ((flags & LADJUST) != 0)           *cp++ = '-';
-      if ((flags & THOUSANDS_GROUPED) != 0) *cp++ = '\'';
-      if (sign != '\0')                     *cp++ = sign;
-
-      *cp++ = '*'; /* width */
-
-      u_put_unalignedp16(cp, U_MULTICHAR_CONSTANT16('.','*')); /* prec */
-
-      cp += 2;
-
-      if (flags & LONGDBL) *cp++ = 'L';
-
-      u_put_unalignedp16(cp, U_MULTICHAR_CONSTANT16(ch,'\0'));
-
-      ++cp;
-
-      if (flags & LONGDBL)
-         {
-         long double ldbl = VA_ARG(long double);
-
-         len = sprintf(bp, (const char* restrict)fmt_float, width, prec, ldbl);
-         }
-      else
+      if (ch == 'g'  &&
+          prec == -1 &&
+          width == 0 &&
+          (flags & (LADJUST | ZEROPAD | THOUSANDS_GROUPED | LONGDBL)) == 0)
          {
          double dbl = VA_ARG(double);
 
-         len = sprintf(bp, (const char* restrict)fmt_float, width, prec, dbl);
+         len = u_dtoa(dbl, bp);
          }
+      else
+         {
+         buf[0] = '%';
 
-      U_INTERNAL_ASSERT_EQUALS(len, (int)strlen(bp))
+         cp = buf + 1;
+
+         if ((flags & ALT)     != 0)           *cp++ = '#';
+         if ((flags & ZEROPAD) != 0)           *cp++ = '0';
+         if ((flags & LADJUST) != 0)           *cp++ = '-';
+         if ((flags & THOUSANDS_GROUPED) != 0) *cp++ = '\'';
+         if (sign)                             *cp++ = sign;
+
+         u_put_unalignedp32(cp, U_MULTICHAR_CONSTANT32('*','.','*','L')); /* width, prec */
+
+         u_put_unalignedp16(cp + ((flags & LONGDBL) == 0 ? 3 : 4), U_MULTICHAR_CONSTANT16(ch,'\0'));
+
+         if ((flags & LONGDBL) != 0)
+            {
+            long double ldbl = VA_ARG(long double);
+
+            len = sprintf(bp, (const char* restrict)buf, width, prec, ldbl);
+            }
+         else
+            {
+            double dbl = VA_ARG(double);
+
+            len = sprintf(bp, (const char* restrict)buf, width, prec, dbl);
+            }
+
+         U_INTERNAL_ASSERT_EQUALS(len, strlen(bp))
+         }
 
       bp  += len;
       ret += len;
@@ -2023,13 +2049,14 @@ empty:      u_put_unalignedp16(bp, U_MULTICHAR_CONSTANT16('"','"'));
          maxlen = (u_printf_string_max_length > 0 ? u_printf_string_max_length : 128);
 
          if (prec < 0 || /* NB: no precision specified... */
-             prec > maxlen)
+             prec > (int)maxlen)
             {
             prec = maxlen;
             }
 
+         U_INTERNAL_ASSERT_EQUALS(sign, 0)
+
          n         = 0;
-         sign      = 0;
          pbase     = bp;
          remaining = buffer_size - ret;
 
@@ -2072,15 +2099,14 @@ empty:      u_put_unalignedp16(bp, U_MULTICHAR_CONSTANT16('"','"'));
                 remaining <= 60)
                {
                if (sign ||
-                   len < 0) /* NB: no precision specified... */
+                   len == U_NOT_FOUND) /* NB: no precision specified... */
                   {
                   /* NB: print something that have the meaning of 'to be continued'... */
 
-                  *bp++ = '.';
-
                   u_put_unalignedp16(bp, U_MULTICHAR_CONSTANT16('.','.'));
 
-                  bp += 2;
+                   bp  += 2;
+                  *bp++ = '.';
                   }
 
                break;
@@ -2099,11 +2125,12 @@ empty:      u_put_unalignedp16(bp, U_MULTICHAR_CONSTANT16('"','"'));
          }
 
 case_ustring_v:
-      sign = '\0';
-      size = (prec < 0 ? (int) u__strlen((const char*)cp, __PRETTY_FUNCTION__) : prec);
+      U_INTERNAL_ASSERT_EQUALS(sign, 0)
+
+      size = (prec < 0 ? (int)u__strlen((const char*)cp, __PRETTY_FUNCTION__) : prec);
 
       U_INTERNAL_ERROR(size <= (int)(buffer_size - ret),
-                       "WE ARE GOING TO OVERFLOW BUFFER at u__vsnprintf() size = %u remaining = %u cp = %.20s buffer_size = %u format = \"%s\"",
+                       "WE ARE GOING TO OVERFLOW BUFFER at u__vsnprintf() size = %u remaining = %d cp = %.20s buffer_size = %u format = \"%s\"",
                        size, (buffer_size - ret), cp, buffer_size, format_save);
 
       /* if a width from format is specified, the 0 flag for padding will be ignored... */
@@ -2234,9 +2261,19 @@ case_D: /* extension: print date and time in various format */
             bp  += len;
             ret += len;
 
-            len = sprintf(bp, " +%ld days", (long)t / U_ONE_DAY_IN_SECOND);
+            u_put_unalignedp16(bp, U_MULTICHAR_CONSTANT16(' ','+'));
 
-            U_INTERNAL_ASSERT_EQUALS(len, (int)strlen(bp))
+            bp  += 2;
+            ret += 2;
+
+            len = u_num2str32(t / U_ONE_DAY_IN_SECOND, bp);
+
+            u_put_unalignedp32(bp+len, U_MULTICHAR_CONSTANT32(' ','d','a','y'));
+
+             bp  += 4;
+            *bp++ = 's';
+
+            ret += 5;
             }
          }
       else if (width == 4) /* _millisec */
@@ -2252,7 +2289,7 @@ case_D: /* extension: print date and time in various format */
 
          len = sprintf(bp, "_%03ld", ms);
 
-         U_INTERNAL_ASSERT_EQUALS(len, (int)strlen(bp))
+         U_INTERNAL_ASSERT_EQUALS(len, strlen(bp))
          }
 
       bp  += len;
@@ -2278,7 +2315,6 @@ case_I: /* extension: print off_t */
       goto case_d;
 
 case_J: /* extension: print U_DATA */
-
       udata = VA_ARG(struct U_DATA);
 
       cp   = udata.dptr;
@@ -2326,15 +2362,15 @@ case_Q: /* extension: call exit() or abort() (var-argument is the arg passed to
       continue;
 
 case_R: /* extension: print msg - u_getSysError() */
-      ccp = VA_ARG(const char* restrict);
+      cp = VA_ARG(unsigned char* restrict);
 
-      U_INTERNAL_PRINT("ccp = %s", ccp)
+      U_INTERNAL_PRINT("cp = %s", cp)
 
-      if (ccp)
+      if (cp)
          {
-         len = u__strlen(ccp, __PRETTY_FUNCTION__);
+         len = u__strlen((const char* restrict)cp, __PRETTY_FUNCTION__);
 
-         u__memcpy(bp, ccp, len, __PRETTY_FUNCTION__);
+         u__memcpy(bp, cp, len, __PRETTY_FUNCTION__);
 
          bp  += len;
          ret += len;
@@ -2342,11 +2378,11 @@ case_R: /* extension: print msg - u_getSysError() */
 
       if ((flags & ALT) == 0)
          {
+         u_put_unalignedp16(bp, U_MULTICHAR_CONSTANT16(' ','-'));
+
+          bp  += 2;
          *bp++ = ' ';
 
-         u_put_unalignedp16(bp, U_MULTICHAR_CONSTANT16('-',' '));
-
-         bp  += 2;
          ret += 3;
          }
 
@@ -2357,18 +2393,18 @@ case_R: /* extension: print msg - u_getSysError() */
          {
          errno = - errno;
 
-         ccp = getSysError_w32((uint32_t*)&len);
+         cp = getSysError_w32((uint32_t*)&len);
 
-         u__memcpy(bp, ccp, len, __PRETTY_FUNCTION__);
+         u__memcpy(bp, cp, len, __PRETTY_FUNCTION__);
 
          bp  += len;
          ret += len;
 
+         u_put_unalignedp16(bp, U_MULTICHAR_CONSTANT16(' ','-'));
+
+          bp  += 2;
          *bp++ = ' ';
 
-         u_put_unalignedp16(bp, U_MULTICHAR_CONSTANT16('-',' '));
-
-         bp  += 2;
          ret += 3;
 
          MAP_WIN32_ERROR_TO_POSIX
@@ -2402,7 +2438,6 @@ case_U: /* extension: print user name */
       continue;
 
 case_V: /* extension: print ustring */
-
       pstr = VA_ARG(struct ustringrep*);
 
       U_INTERNAL_ASSERT_POINTER(pstr)
@@ -2437,24 +2472,20 @@ case_X:
 
       /* leading 0x/X only if non-zero */
 
-      if (argument != 0LL &&
+      if (argument != 0 &&
           (flags & ALT) != 0)
          {
          flags |= HEXPREFIX;
          }
 
-      /* uint32_t conversions */
-
 nosign:
-      sign = '\0';
+      sign = 0;
 
-      /* ... diouXx conversions ... if a precision is specified, the 0 flag will be ignored */
-
-number:
-      if ((dprec = prec) >= 0) flags &= ~ZEROPAD;
+number: /* uint32_t conversions */
+      if ((dprec = prec) >= 0) flags &= ~ZEROPAD; /* ... diouXx conversions ... if a precision is specified, the 0 flag will be ignored */
 
       if (prec     == 0 &&
-          argument == 0LL)
+          argument == 0)
          {
          size = 0; /* The result of converting a zero value with an explicit precision of zero is no characters */
          }
@@ -2462,9 +2493,9 @@ number:
          {
          if (base == OCT)
             {
-            cp = buf_number + sizeof(buf_number);
+            cp = buf + sizeof(buf);
 
-            do { *--cp = (argument & 7L) + '0'; } while (argument >>= 3L);
+            do { *--cp = (argument & 7) + '0'; } while (argument >>= 3);
 
             /* handle octal leading 0 */
 
@@ -2474,17 +2505,18 @@ number:
                *--cp = '0';
                }
 
-            size = (ptrdiff_t)(buf_number + sizeof(buf_number) - cp);
+            size = (ptrdiff_t)(buf + sizeof(buf) - cp);
             }
          else if (base == HEX)
             {
-            const unsigned char* restrict xdigs = (ch == 'X' ? u_hex_upper : u_hex_lower); /* digits for [xX] conversion */
+            const unsigned char* restrict xdigs = (ch == 'X' ? u_hex_upper
+                                                             : u_hex_lower); /* digits for [xX] conversion */
 
-            cp = buf_number + sizeof(buf_number);
+            cp = buf + sizeof(buf);
 
-            do { *--cp = xdigs[argument & 15L]; } while (argument /= 16L);
+            do { *--cp = xdigs[argument & 15]; } while (argument /= 16);
 
-            size = (ptrdiff_t)(buf_number + sizeof(buf_number) - cp);
+            size = (ptrdiff_t)(buf + sizeof(buf) - cp);
             }
          else
             {
@@ -2495,12 +2527,12 @@ number:
                if (dprec ||
                    (flags & (LADJUST | ZEROPAD)) != 0)
                   {
-                  size = u_num2str64(argument, (char* restrict)(cp = buf_number));
+                  size = u_num2str64(argument, (char* restrict)(cp = buf));
 
                   goto next;
                   }
 
-               if (sign != '\0')
+               if (sign)
                   {
                   *bp++ = sign;
 
@@ -2517,20 +2549,20 @@ number:
 
             n = 1;
 
-            cp = buf_number + sizeof(buf_number);
+            cp = buf + sizeof(buf);
 
-            while (argument >= 10LL) /* NB: many numbers are 1 digit */
+            while (argument >= 10) /* NB: many numbers are 1 digit */
                {
-               *--cp = (unsigned char)(argument % 10LL) + '0';
+               *--cp = (unsigned char)(argument % 10) + '0';
 
-               argument /= 10LL;
+               argument /= 10;
 
                if ((n++ % 3) == 0) *--cp = ',';
                }
 
             *--cp = argument + '0';
 
-            size = (ptrdiff_t)(buf_number + sizeof(buf_number) - cp);
+            size = (ptrdiff_t)(buf + sizeof(buf) - cp);
             }
          }
 
@@ -2569,9 +2601,10 @@ case_b: /* extension: print bool */
       continue;
 
 case_c: /* field conversion specifier */
-      *(cp = buf_number) = VA_ARG(int);
+      *(cp = buf) = VA_ARG(int);
+
+      U_INTERNAL_ASSERT_EQUALS(sign, 0)
 
-      sign = '\0';
       size = 1;
 
       goto next;
@@ -2579,7 +2612,7 @@ case_c: /* field conversion specifier */
 case_d:
       argument = SARG();
 
-      if ((int64_t)argument < 0LL)
+      if ((int64_t)argument < 0)
          {
          sign     = '-';
          argument = -argument;
@@ -2698,7 +2731,6 @@ case_u:
       goto nosign;
 
 case_v: /* extension: print ustring */
-
       pstr = VA_ARG(struct ustringrep*);
 
       U_INTERNAL_ASSERT_POINTER(pstr)
@@ -2773,7 +2805,7 @@ next:
 
       /* prefix */
 
-      if (sign != '\0')
+      if (sign)
          {
          if (bpad) --bp;
          else
@@ -2811,7 +2843,14 @@ next:
 
       /* the string or number proper */
 
-      for (; size; --size) *bp++ = *cp++;
+      if (size)
+         {
+         U_INTERNAL_ASSERT_POINTER(cp)
+
+         u__memcpy(bp, cp, size, __PRETTY_FUNCTION__);
+
+         bp += size;
+         }
 
       /* left-adjusting padding (always blank) */
 
diff --git a/src/ulib/base/utility.c b/src/ulib/base/utility.c
index a5645641..4709d07a 100644
--- a/src/ulib/base/utility.c
+++ b/src/ulib/base/utility.c
@@ -680,24 +680,32 @@ double u_calcRate(uint64_t bytes, uint32_t msecs, int* restrict units)
    return rate;
 }
 
-void u_printSize(char* restrict buffer, uint64_t bytes)
+uint32_t u_printSize(char* restrict buffer, uint64_t bytes)
 {
    int units;
    double size;
+   uint32_t len;
 
    U_INTERNAL_TRACE("u_printSize(%p,%llu)", buffer, bytes)
 
    if (bytes == 0)
       {
-      u__strcpy(buffer, "0 Byte");
+      u_put_unalignedp32(buffer,   U_MULTICHAR_CONSTANT32('0',' ','B','y'));
+      u_put_unalignedp16(buffer+4, U_MULTICHAR_CONSTANT16('t','e'));
 
-      return;
+      len = 6;
+      }
+   else
+      {
+      size = u_calcRate(bytes, 1000, &units);
+
+      len = (units ? sprintf(buffer, "%5.2f %s", size, u_short_units[units])
+                   : sprintf(buffer, "%7.0f Bytes", size));
       }
 
-   size = u_calcRate(bytes, 1000, &units);
+   buffer[len] = '\0';
 
-   if (units) (void) sprintf(buffer, "%5.2f %s",    size, u_short_units[units]);
-   else       (void) sprintf(buffer, "%7.0f Bytes", size);
+   return len;
 }
 
 uint32_t u_memory_dump(char* restrict bp, unsigned char* restrict cp, uint32_t n)
diff --git a/src/ulib/curl/curl.cpp b/src/ulib/curl/curl.cpp
index 110d9124..b14d4e00 100644
--- a/src/ulib/curl/curl.cpp
+++ b/src/ulib/curl/curl.cpp
@@ -134,7 +134,7 @@ U_NO_EXPORT size_t UCURL::writeFunction(void* ptr, size_t size, size_t nmemb, vo
 
    size_t len = size * nmemb;
 
-   (void) ((UCURL*)obj)->response.reserve(((UCURL*)obj)->response.size() + len);
+   (void) ((UCURL*)obj)->response.reserve(len);
 
    ((UCURL*)obj)->response.append((const char*)ptr, len);
 
diff --git a/src/ulib/internal/common.cpp b/src/ulib/internal/common.cpp
index 6f9b712c..710c1804 100644
--- a/src/ulib/internal/common.cpp
+++ b/src/ulib/internal/common.cpp
@@ -24,7 +24,9 @@
 #     include "./itoa.cpp"
 static uint32_t itoa32(uint32_t num, char* restrict cp) { return itoa_fwd(num, cp) - cp; }
 static uint32_t itoa64(uint64_t num, char* restrict cp) { return itoa_fwd(num, cp) - cp; }
-#  endif
+#  elif (defined(i386) || defined(__amd64) || defined(_M_IX86) || defined(_M_X64)) && !defined(HAVE_OLD_IOSTREAM) && !defined(_MSWINDOWS_) && defined(HAVE_ARCH64)
+#     include "./itoa_sse2.cpp"
+#endif
 #else
 U_EXPORT bool __cxa_guard_acquire() { return 1; }
 U_EXPORT bool __cxa_guard_release() { return 1; }
@@ -33,7 +35,6 @@ U_EXPORT void* operator new(  size_t n)   { return malloc(n); }
 U_EXPORT void* operator new[](size_t n)   { return malloc(n); }
 U_EXPORT void  operator delete(  void* p) { free(p); }
 U_EXPORT void  operator delete[](void* p) { free(p); }
-
 #  ifdef __MINGW32__
 U_EXPORT void  operator delete(  void* p,      unsigned int) { free(p); }
 U_EXPORT void  operator delete[](void* p,      unsigned int) { free(p); }
@@ -70,7 +71,7 @@ void ULib_init_openssl()
    // is responsible for seeding the PRNG by calling RAND_add()
 
 # ifdef _MSWINDOWS_
-   U_SYSCALL_VOID(srand, "%ld", u_start_time); // seed with time
+   U_SYSCALL_VOID(srand, "%ld", u_seed_hash);
 
    while (RAND_status() == 0) // Seed PRNG only if needed
       {
@@ -84,13 +85,29 @@ void ULib_init_openssl()
 }
 #endif
 
+#ifndef HAVE_OLD_IOSTREAM
+#  include <ulib/utility/dtoa_milo.h>
+static uint32_t dtoa_milo(double value, char* buffer) { int length, K; Grisu2(value, buffer, &length, &K); return Prettify(buffer, length, K); }
+#endif
+
 void ULib_init()
 {
    U_TRACE_NO_PARAM(1, "ULib_init()")
 
+   // conversion number to string
+
+#ifndef HAVE_OLD_IOSTREAM
+   u_dbl2str = dtoa_milo; 
+#endif
 #if defined(HAVE_CXX14) && GCC_VERSION_NUM > 60100
    u_num2str32 = itoa32;
    u_num2str64 = itoa64;
+#elif (defined(i386) || defined(__amd64) || defined(_M_IX86) || defined(_M_X64)) && !defined(HAVE_OLD_IOSTREAM) && !defined(_MSWINDOWS_) && defined(HAVE_ARCH64)
+   if (u_flag_sse >= 2)
+      {
+      u_num2str32 = utoa32_sse2;
+      u_num2str64 = utoa64_sse2;
+      }
 #endif
 
 #ifdef DEBUG
diff --git a/src/ulib/internal/itoa_sse2.cpp b/src/ulib/internal/itoa_sse2.cpp
new file mode 100644
index 00000000..69242714
--- /dev/null
+++ b/src/ulib/internal/itoa_sse2.cpp
@@ -0,0 +1,307 @@
+// SSE2 implementation according to http://0x80.pl/articles/sse-itoa.html
+// Modifications: (1) fix incorrect digits (2) accept all ranges (3) write to user provided buffer.
+
+#if defined(i386) || defined(__amd64) || defined(_M_IX86) || defined(_M_X64)
+
+#include <emmintrin.h>
+#include <stdint.h>
+
+#ifdef _MSC_VER
+#include "intrin.h"
+#endif
+
+#ifdef _MSC_VER
+#define ALIGN_PRE __declspec(align(16))
+#define ALIGN_SUF
+#else
+#define ALIGN_PRE
+#define ALIGN_SUF  __attribute__ ((aligned(16)))
+#endif
+
+static const uint32_t kDiv10000 = 0xd1b71759;
+ALIGN_PRE static const uint32_t kDiv10000Vector[4] ALIGN_SUF = { kDiv10000, kDiv10000, kDiv10000, kDiv10000 };
+ALIGN_PRE static const uint32_t k10000Vector[4] ALIGN_SUF = { 10000, 10000, 10000, 10000 };
+ALIGN_PRE static const uint16_t kDivPowersVector[8] ALIGN_SUF = { 8389, 5243, 13108, 32768, 8389, 5243, 13108, 32768 }; // 10^3, 10^2, 10^1, 10^0
+ALIGN_PRE static const uint16_t kShiftPowersVector[8] ALIGN_SUF = {
+    1 << (16 - (23 + 2 - 16)),
+    1 << (16 - (19 + 2 - 16)),
+    1 << (16 - 1 - 2),
+    1 << (15),
+    1 << (16 - (23 + 2 - 16)),
+    1 << (16 - (19 + 2 - 16)),
+    1 << (16 - 1 - 2),
+    1 << (15)
+};
+ALIGN_PRE static const uint16_t k10Vector[8] ALIGN_SUF = { 10, 10, 10, 10, 10, 10, 10, 10 };
+ALIGN_PRE static const char kAsciiZero[16] ALIGN_SUF = { '0', '0', '0', '0', '0', '0', '0', '0', '0', '0', '0', '0', '0', '0', '0', '0' };
+
+inline __pure __m128i Convert8DigitsSSE2(uint32_t value) {
+
+    // abcd, efgh = abcdefgh divmod 10000 
+    const __m128i abcdefgh = _mm_cvtsi32_si128(value);
+    const __m128i abcd = _mm_srli_epi64(_mm_mul_epu32(abcdefgh, reinterpret_cast<const __m128i*>(kDiv10000Vector)[0]), 45);
+    const __m128i efgh = _mm_sub_epi32(abcdefgh, _mm_mul_epu32(abcd, reinterpret_cast<const __m128i*>(k10000Vector)[0]));
+
+    // v1 = [ abcd, efgh, 0, 0, 0, 0, 0, 0 ]
+    const __m128i v1 = _mm_unpacklo_epi16(abcd, efgh);
+
+    // v1a = v1 * 4 = [ abcd * 4, efgh * 4, 0, 0, 0, 0, 0, 0 ]
+    const __m128i v1a = _mm_slli_epi64(v1, 2);
+
+    // v2 = [ abcd * 4, abcd * 4, abcd * 4, abcd * 4, efgh * 4, efgh * 4, efgh * 4, efgh * 4 ]
+    const __m128i v2a = _mm_unpacklo_epi16(v1a, v1a);
+    const __m128i v2 = _mm_unpacklo_epi32(v2a, v2a);
+
+    // v4 = v2 div 10^3, 10^2, 10^1, 10^0 = [ a, ab, abc, abcd, e, ef, efg, efgh ]
+    const __m128i v3 = _mm_mulhi_epu16(v2, reinterpret_cast<const __m128i*>(kDivPowersVector)[0]);
+    const __m128i v4 = _mm_mulhi_epu16(v3, reinterpret_cast<const __m128i*>(kShiftPowersVector)[0]);
+
+    // v5 = v4 * 10 = [ a0, ab0, abc0, abcd0, e0, ef0, efg0, efgh0 ]
+    const __m128i v5 = _mm_mullo_epi16(v4, reinterpret_cast<const __m128i*>(k10Vector)[0]);
+
+    // v6 = v5 << 16 = [ 0, a0, ab0, abc0, 0, e0, ef0, efg0 ]
+    const __m128i v6 = _mm_slli_epi64(v5, 16);
+
+    // v7 = v4 - v6 = { a, b, c, d, e, f, g, h }
+    const __m128i v7 = _mm_sub_epi16(v4, v6);
+
+    return v7;
+}
+
+inline __pure __m128i ShiftDigits_SSE2(__m128i a, unsigned digit) {
+    switch (digit) {
+        case 0: return a;
+        case 1: return _mm_srli_si128(a, 1);
+        case 2: return _mm_srli_si128(a, 2);
+        case 3: return _mm_srli_si128(a, 3);
+        case 4: return _mm_srli_si128(a, 4);
+        case 5: return _mm_srli_si128(a, 5);
+        case 6: return _mm_srli_si128(a, 6);
+        case 7: return _mm_srli_si128(a, 7);
+        case 8: return _mm_srli_si128(a, 8);
+    }
+    return a; // should not execute here.
+}
+
+static uint32_t utoa32_sse2(uint32_t value, char* buffer)
+{
+   char* start = buffer;
+
+   if (value < 10000)
+      {
+      const uint32_t d1 = (value / 100) << 1;
+      const uint32_t d2 = (value % 100) << 1;
+
+      if (value >= 1000) *buffer++ = u_ctn2s[d1];
+      if (value >=  100) *buffer++ = u_ctn2s[d1+1];
+      if (value >=   10) *buffer++ = u_ctn2s[d2];
+                         *buffer++ = u_ctn2s[d2+1];
+
+      return (buffer - start);
+      }
+
+   if (value < 100000000)
+      {
+      // Experiment shows that in this case SSE2 is slower
+#  if 0
+      const __m128i a = Convert8DigitsSSE2(value);
+
+      // Convert to bytes, add '0'
+      const __m128i va = _mm_add_epi8(_mm_packus_epi16(a, _mm_setzero_si128()), reinterpret_cast<const __m128i*>(kAsciiZero)[0]);
+
+      // Count number of digit
+      const unsigned mask = _mm_movemask_epi8(_mm_cmpeq_epi8(va, reinterpret_cast<const __m128i*>(kAsciiZero)[0]));
+      unsigned long digit;
+#  ifdef _MSC_VER
+      _BitScanForward(&digit, ~mask | 0x8000);
+#  else
+      digit = __builtin_ctz(~mask | 0x8000);
+#  endif
+
+      // Shift digits to the beginning
+      __m128i result = ShiftDigits_SSE2(va, digit);
+      //__m128i result = _mm_srl_epi64(va, _mm_cvtsi32_si128(digit * 8));
+      _mm_storel_epi64(reinterpret_cast<__m128i*>(buffer), result);
+
+      return (buffer + 8 - digit - start);
+#  else
+      // value = bbbbcccc
+      const uint32_t b = value / 10000;
+      const uint32_t c = value % 10000;
+
+      const uint32_t d1 = (b / 100) << 1;
+      const uint32_t d2 = (b % 100) << 1;
+
+      const uint32_t d3 = (c / 100);
+      const uint32_t d4 = (c % 100);
+
+      if (value >= 10000000) *buffer++ = u_ctn2s[d1];
+      if (value >=  1000000) *buffer++ = u_ctn2s[d1+1];
+      if (value >=   100000) *buffer++ = u_ctn2s[d2];
+                             *buffer++ = u_ctn2s[d2+1];
+
+      U_NUM2STR16(buffer,   d3);
+      U_NUM2STR16(buffer+2, d4);
+
+      return (buffer + 4 - start);
+#  endif
+      }
+
+   // value = aabbbbbbbb in decimal
+
+   const uint32_t a = value  / 100000000; // 1 to 42
+                      value %= 100000000;
+
+   if (a < 10) *buffer++ = '0' + (char)a;
+   else
+      {
+      U_NUM2STR16(buffer, a);
+
+      buffer += 2;
+      }
+
+   const __m128i b = Convert8DigitsSSE2(value);
+   const __m128i ba = _mm_add_epi8(_mm_packus_epi16(_mm_setzero_si128(), b), reinterpret_cast<const __m128i*>(kAsciiZero)[0]);
+   const __m128i result = _mm_srli_si128(ba, 8);
+
+   _mm_storel_epi64(reinterpret_cast<__m128i*>(buffer), result);
+
+   return (buffer + 8 - start);
+}
+
+static uint32_t utoa64_sse2(uint64_t value, char* buffer)
+{
+   char* start = buffer;
+
+   if (value < 100000000)
+      {
+      uint32_t v = static_cast<uint32_t>(value);
+
+      if (v < 10000)
+         {
+         const uint32_t d1 = (v / 100) << 1;
+         const uint32_t d2 = (v % 100) << 1;
+
+         if (v >= 1000) *buffer++ = u_ctn2s[d1];
+         if (v >=  100) *buffer++ = u_ctn2s[d1+1];
+         if (v >=   10) *buffer++ = u_ctn2s[d2];
+                        *buffer++ = u_ctn2s[d2+1];
+
+         return (buffer - start);
+         }
+
+      // Experiment shows that in this case SSE2 is slower
+#  if 0
+      const __m128i a = Convert8DigitsSSE2(v);
+
+      // Convert to bytes, add '0'
+      const __m128i va = _mm_add_epi8(_mm_packus_epi16(a, _mm_setzero_si128()), reinterpret_cast<const __m128i*>(kAsciiZero)[0]);
+
+      // Count number of digit
+      const unsigned mask = _mm_movemask_epi8(_mm_cmpeq_epi8(va, reinterpret_cast<const __m128i*>(kAsciiZero)[0]));
+      unsigned long digit;
+#  ifdef _MSC_VER
+      _BitScanForward(&digit, ~mask | 0x8000);
+#  else
+      digit = __builtin_ctz(~mask | 0x8000);
+#  endif
+
+      // Shift digits to the beginning
+      __m128i result = ShiftDigits_SSE2(va, digit);
+      _mm_storel_epi64(reinterpret_cast<__m128i*>(buffer), result);
+
+      return (buffer + 8 - digit - start);
+#  else
+      // value = bbbbcccc
+      const uint32_t b = v / 10000;
+      const uint32_t c = v % 10000;
+
+      const uint32_t d1 = (b / 100) << 1;
+      const uint32_t d2 = (b % 100) << 1;
+
+      const uint32_t d3 = (c / 100);
+      const uint32_t d4 = (c % 100);
+
+      if (value >= 10000000) *buffer++ = u_ctn2s[d1];
+      if (value >=  1000000) *buffer++ = u_ctn2s[d1+1];
+      if (value >=   100000) *buffer++ = u_ctn2s[d2];
+                             *buffer++ = u_ctn2s[d2+1];
+
+      U_NUM2STR16(buffer,   d3);
+      U_NUM2STR16(buffer+2, d4);
+
+      return (buffer + 4 - start);
+#  endif
+      }
+
+   if (value < 10000000000000000)
+      {
+      const uint32_t v0 = static_cast<uint32_t>(value / 100000000);
+      const uint32_t v1 = static_cast<uint32_t>(value % 100000000);
+
+      const __m128i a0 = Convert8DigitsSSE2(v0);
+      const __m128i a1 = Convert8DigitsSSE2(v1);
+
+      // Convert to bytes, add '0'
+      const __m128i va = _mm_add_epi8(_mm_packus_epi16(a0, a1), reinterpret_cast<const __m128i*>(kAsciiZero)[0]);
+
+      // Count number of digit
+      const unsigned mask = _mm_movemask_epi8(_mm_cmpeq_epi8(va, reinterpret_cast<const __m128i*>(kAsciiZero)[0]));
+#  ifdef _MSC_VER
+      unsigned long digit;
+      _BitScanForward(&digit, ~mask | 0x8000);
+#  else
+      unsigned digit = __builtin_ctz(~mask | 0x8000);
+#  endif
+
+      // Shift digits to the beginning
+      __m128i result = ShiftDigits_SSE2(va, digit);
+      _mm_storeu_si128(reinterpret_cast<__m128i*>(buffer), result);
+
+      return (buffer + 16 - digit - start);
+      }
+
+   const uint32_t a = static_cast<uint32_t>(value  / 10000000000000000); // 1 to 1844
+                                            value %= 10000000000000000;
+
+        if (a <  10) *buffer++ = '0' + (char)a;
+   else if (a < 100)
+      {
+      U_NUM2STR16(buffer, a);
+
+      buffer += 2;
+      }
+   else if (a < 1000)
+      {
+      *buffer++ = '0' + static_cast<char>(a / 100);
+
+      const uint32_t i = (a % 100);
+
+      U_NUM2STR16(buffer, i);
+
+      buffer += 2;
+      }
+   else
+      {
+      const uint32_t i = (a / 100);
+      const uint32_t j = (a % 100);
+
+      U_NUM2STR16(buffer,   i);
+      U_NUM2STR16(buffer+2, j);
+
+      buffer += 4;
+      }
+
+   const uint32_t v0 = static_cast<uint32_t>(value / 100000000);
+   const uint32_t v1 = static_cast<uint32_t>(value % 100000000);
+
+   const __m128i a0 = Convert8DigitsSSE2(v0);
+   const __m128i a1 = Convert8DigitsSSE2(v1);
+
+   // Convert to bytes, add '0'
+   const __m128i va = _mm_add_epi8(_mm_packus_epi16(a0, a1), reinterpret_cast<const __m128i*>(kAsciiZero)[0]);
+   _mm_storeu_si128(reinterpret_cast<__m128i*>(buffer), va);
+
+   return (buffer + 16 - start);
+}
+#endif
diff --git a/src/ulib/json/value.cpp b/src/ulib/json/value.cpp
index 13d51f1b..38f365e8 100644
--- a/src/ulib/json/value.cpp
+++ b/src/ulib/json/value.cpp
@@ -896,11 +896,10 @@ void UValue::stringify(UString& result, UValue& _value)
 
    bool bcomma;
    char* presult;
-   const char* ch;
-   char buffer[32];
    UString* pstring;
-   const char* last_nonzero;
-   uint32_t n, pos, sz, keysz;
+   uint32_t pos, sz, keysz;
+
+   (void) result.reserve(32);
 
    U_INTERNAL_DUMP("dispatch_table[%d] = %p &&case_null = %p", _value.type_, dispatch_table[_value.type_], &&case_null)
 
@@ -928,94 +927,88 @@ case_uchar:
    return;
 
 case_short:
-   (void) result.append(buffer, u_num2str32s(_value.value.short_, buffer));
+   presult = result.c_pointer(sz = result.size());
+
+   result.rep->_length = sz + u_num2str32s(_value.value.short_, presult); 
 
    return;
 
 case_ushort:
-   (void) result.append(buffer, u_num2str32(_value.value.ushort_, buffer));
+   presult = result.c_pointer(sz = result.size());
+
+   result.rep->_length = sz + u_num2str32(_value.value.ushort_, presult); 
 
    return;
 
 case_int:
-   (void) result.append(buffer, u_num2str32s(_value.value.int_, buffer));
+   presult = result.c_pointer(sz = result.size());
+
+   result.rep->_length = sz + u_num2str32s(_value.value.int_, presult); 
 
    return;
 
 case_uint:
-   (void) result.append(buffer, u_num2str32s(_value.value.uint_, buffer));
+   presult = result.c_pointer(sz = result.size());
+
+   result.rep->_length = sz + u_num2str32(_value.value.uint_, presult); 
 
    return;
 
 case_long:
-   (void) result.append(buffer, u_num2str64s(_value.value.long_, buffer));
+   presult = result.c_pointer(sz = result.size());
+
+   result.rep->_length = sz + u_num2str64s(_value.value.long_, presult); 
 
    return;
 
 case_ulong:
-   (void) result.append(buffer, u_num2str64s(_value.value.ulong_, buffer));
+   presult = result.c_pointer(sz = result.size());
+
+   result.rep->_length = sz + u_num2str64(_value.value.ulong_, presult); 
 
    return;
 
 case_llong:
-   (void) result.append(buffer, u_num2str64s(_value.value.llong_, buffer));
+   presult = result.c_pointer(sz = result.size());
+
+   result.rep->_length = sz + u_num2str64s(_value.value.llong_, presult); 
 
    return;
 
 case_ullong:
-   (void) result.append(buffer, u_num2str64s(_value.value.ullong_, buffer));
+   presult = result.c_pointer(sz = result.size());
+
+   result.rep->_length = sz + u_num2str64(_value.value.ullong_, presult); 
 
    return;
 
 case_float:
-   n = u__snprintf(buffer, sizeof(buffer), "%#.6f", _value.value.float_);
+   presult = result.c_pointer(sz = result.size());
 
-   goto next;
+   result.rep->_length = sz + u_dtoa(_value.value.float_, presult); 
+
+   return;
 
 case_double:
-   n = u__snprintf(buffer, sizeof(buffer), "%#.16g", _value.value.real_);
+   presult = result.c_pointer(sz = result.size());
 
-   goto next;
+   result.rep->_length = sz + u_dtoa(_value.value.real_, presult); 
+
+   return;
 
 case_ldouble:
-   n = u__snprintf(buffer, sizeof(buffer), "%#.16g", _value.value.lreal_);
+   presult = result.c_pointer(sz = result.size());
 
-next:
-   ch = buffer + n - 1;
-
-   if (*ch == '0')
-      {
-      while (ch > buffer && *ch == '0') --ch;
-
-      last_nonzero = ch;
-
-      while (ch >= buffer)
-         {
-         char c = *ch;
-
-         if (u__isdigit(c))
-            {
-            --ch;
-
-            continue; 
-            }
-
-         if (c == '.') n = last_nonzero - buffer + 2; // Truncate zeroes to save bytes in output, but keep one
-
-         break;
-         }
-      }
-
-   (void) result.append(buffer, n);
+   result.rep->_length = sz + u_dtoa(_value.value.lreal_, presult); 
 
    return;
 
 case_string:
    pstring = (UString*)_value.value.ptr_;
 
-   (void) result.reserve((sz = result.size()) + (keysz = pstring->size()) * 6);
+   (void) result.reserve((keysz = pstring->size()) * 6);
 
-   presult = result.c_pointer(sz);
+   presult = result.c_pointer(sz = result.size());
 
    result.rep->_length = sz + emitString((const unsigned char*)pstring->data(), keysz, presult);
 
@@ -1044,9 +1037,9 @@ case_object:
       {
       U_INTERNAL_ASSERT_POINTER(member->key)
 
-      (void) result.reserve((sz = result.size()) + (keysz = member->key->size()) * 6);
+      (void) result.reserve((keysz = member->key->size()) * 6);
 
-      presult = result.c_pointer(sz);
+      presult = result.c_pointer(sz = result.size());
 
       if (bcomma == false) bcomma = true;
       else
@@ -2110,55 +2103,53 @@ const char* UValue::getJReadErrorDescription()
       "End of object found"                       // 14
    };
 
-   const char* descr = (jread_error >= 0 && jread_error <= 14 ? errlist[jread_error] : "Unknown jread error");
+   const char* descr = (jread_error >= 0 && (int)U_NUM_ELEMENTS(errlist) ? errlist[jread_error] : "Unknown jread error");
 
    U_RETURN(descr);
 }
 
-#  define U_VAL_ENTRY(n) n: descr = #n; break
-
 const char* UValue::getDataTypeDescription(int type)
 {
    U_TRACE(0, "UValue::getDataTypeDescription(%d)", type)
 
-   const char* descr;
+   struct data_type_info {
+      int value;        // The numeric value
+      const char* name; // The equivalent symbolic value
+   };
 
-   switch (type)
-      {
-      case U_VAL_ENTRY(NULL_VALUE);
-      case U_VAL_ENTRY(BOOLEAN_VALUE);
-      case U_VAL_ENTRY(CHAR_VALUE);
-      case U_VAL_ENTRY(UCHAR_VALUE);
-      case U_VAL_ENTRY(SHORT_VALUE);
-      case U_VAL_ENTRY(USHORT_VALUE);
-      case U_VAL_ENTRY(INT_VALUE);
-      case U_VAL_ENTRY(UINT_VALUE);
-      case U_VAL_ENTRY(LONG_VALUE);
-      case U_VAL_ENTRY(ULONG_VALUE);
-      case U_VAL_ENTRY(LLONG_VALUE);
-      case U_VAL_ENTRY(ULLONG_VALUE);
-      case U_VAL_ENTRY(FLOAT_VALUE);
-      case U_VAL_ENTRY(REAL_VALUE);
-      case U_VAL_ENTRY(LREAL_VALUE);
-      case U_VAL_ENTRY(STRING_VALUE);
-      case U_VAL_ENTRY(ARRAY_VALUE);
-      case U_VAL_ENTRY(OBJECT_VALUE);
-      case U_VAL_ENTRY(NUMBER_VALUE);
-      case U_VAL_ENTRY(U_JR_EOL);
-      case U_VAL_ENTRY(U_JR_COLON);
-      case U_VAL_ENTRY(U_JR_COMMA);
-      case U_VAL_ENTRY(U_JR_EARRAY);
-      case U_VAL_ENTRY(U_JR_QPARAM);
-      case U_VAL_ENTRY(U_JR_EOBJECT);
+   static const struct data_type_info data_type_table[] = {
+      U_ENTRY(NULL_VALUE),
+      U_ENTRY(BOOLEAN_VALUE),
+      U_ENTRY(CHAR_VALUE),
+      U_ENTRY(UCHAR_VALUE),
+      U_ENTRY(SHORT_VALUE),
+      U_ENTRY(USHORT_VALUE),
+      U_ENTRY(INT_VALUE),
+      U_ENTRY(UINT_VALUE),
+      U_ENTRY(LONG_VALUE),
+      U_ENTRY(ULONG_VALUE),
+      U_ENTRY(LLONG_VALUE),
+      U_ENTRY(ULLONG_VALUE),
+      U_ENTRY(FLOAT_VALUE),
+      U_ENTRY(REAL_VALUE),
+      U_ENTRY(LREAL_VALUE),
+      U_ENTRY(STRING_VALUE),
+      U_ENTRY(ARRAY_VALUE),
+      U_ENTRY(OBJECT_VALUE),
+      U_ENTRY(NUMBER_VALUE),
+      U_ENTRY(U_JR_EOL),
+      U_ENTRY(U_JR_COLON),
+      U_ENTRY(U_JR_COMMA),
+      U_ENTRY(U_JR_EARRAY),
+      U_ENTRY(U_JR_QPARAM),
+      U_ENTRY(U_JR_EOBJECT)
+   };
 
-      default: descr = "Data type unknown";
-      }
+   const char* descr = (type >= 0 && type < (int)U_NUM_ELEMENTS(data_type_table) ? data_type_table[type].name : "Data type unknown");
 
    U_RETURN(descr);
 }
 
-#  undef U_VAL_ENTRY
-
 const char* UValue::dump(bool _reset) const
 {
 #ifdef U_STDCPP_ENABLE
diff --git a/src/ulib/net/client/redis.cpp b/src/ulib/net/client/redis.cpp
index d8699eab..57b130a9 100644
--- a/src/ulib/net/client/redis.cpp
+++ b/src/ulib/net/client/redis.cpp
@@ -28,7 +28,7 @@ bool UREDISClient_Base::connect(const char* phost, unsigned int _port)
 
       if (env_redis_host == 0)
          {
-         UClient_Base::response.snprintf("connection disabled");
+         (void) UClient_Base::response.replace(U_CONSTANT_TO_PARAM("connection disabled"));
 
          U_RETURN(false);
          }
diff --git a/src/ulib/net/server/plugin/mod_nocat.cpp b/src/ulib/net/server/plugin/mod_nocat.cpp
index 31289dbb..de5e4e1e 100644
--- a/src/ulib/net/server/plugin/mod_nocat.cpp
+++ b/src/ulib/net/server/plugin/mod_nocat.cpp
@@ -1481,10 +1481,11 @@ void UNoCatPlugIn::addPeerInfo(int disconnected)
    U_INTERNAL_ASSERT(u_now->tv_sec >= peer->ctime)
 
    char* ptr;
-   uint32_t sz;
    char buffer[64];
    UString info = (*vinfo_data)[U_peer_index_AUTH], str = UStringExt::substitute(peer->mac, ':', U_CONSTANT_TO_PARAM("%3A"));
 
+   uint32_t sz = info.size();
+
    U_INTERNAL_DUMP("U_peer_index_AUTH = %u info = %V peer->ip = %V", U_peer_index_AUTH, info.rep, peer->ip.rep)
 
    // ------------------------------------------------------------------------------------------------------------------------------------------
@@ -1500,7 +1501,7 @@ void UNoCatPlugIn::addPeerInfo(int disconnected)
    // /info?Mac=98%3A0c%3A82%3A76%3A3b%3A39&ip=172.16.1.8&gateway=172.16.1.254%3A5280&ap=ap%4010.8.0.1&User=1212&logout=-1&connected=3&traffic=0
    // ------------------------------------------------------------------------------------------------------------------------------------------
 
-   (void) info.reserve((sz = info.size()) + 200U);
+   (void) info.reserve(200U);
 
    info.snprintf_add("%.*sMac=%v&ip=%v&", (sz > 0), "&", str.rep, peer->ip.rep);
 
@@ -1557,10 +1558,11 @@ void UNoCatPlugIn::addPeerRoaming()
    U_INTERNAL_ASSERT(peer->mac)
    U_INTERNAL_ASSERT(peer->user)
 
-   uint32_t sz;
    char buffer[64];
    UString data = (*vroaming_data)[U_peer_index_AUTH], str = UStringExt::substitute(peer->mac, ':', U_CONSTANT_TO_PARAM("%3A"));
 
+   uint32_t sz = data.size();
+
    U_INTERNAL_DUMP("U_peer_index_AUTH = %u data = %V peer->ip = %V", U_peer_index_AUTH, data.rep, peer->ip.rep)
 
    // -------------------------------------------------------------------------------------------------------------
@@ -1573,7 +1575,7 @@ void UNoCatPlugIn::addPeerRoaming()
    // /roaming?Mac=98%3A0c%3A82%3A76%3A3b%3A39&ip=172.16.1.8&gateway=172.16.1.254%3A5280&ap=ap%4010.8.0.1&User=1212
    // -------------------------------------------------------------------------------------------------------------
 
-   (void) data.reserve((sz = data.size()) + 200U);
+   (void) data.reserve(200U);
 
    data.snprintf_add("%.*sMac=%v&ip=%v&", (sz > 0), "&", str.rep, peer->ip.rep);
 
diff --git a/src/ulib/net/server/plugin/usp/businesses.usp b/src/ulib/net/server/plugin/usp/businesses.usp
index 530ad5fb..51ebfbf1 100644
--- a/src/ulib/net/server/plugin/usp/businesses.usp
+++ b/src/ulib/net/server/plugin/usp/businesses.usp
@@ -253,11 +253,7 @@ private:
    HTTP2Push& operator=(const HTTP2Push&)     { return *this; }
 };
 
-static UValue* pvalue;
-static Request* prequest;
 static UMongoDBClient* mc;
-static Response* presponse;
-static UVector<Response*>* pvresponse;
 
 static void usp_init_businesses()
 {
@@ -289,11 +285,6 @@ static void usp_fork_businesses()
 
       return;
       }
-
-   U_NEW(Request, prequest, Request);
-   U_NEW(Response, presponse, Response);
-   U_NEW(UValue, pvalue, UValue(ARRAY_VALUE));
-   U_NEW(UVector<Response*>, pvresponse, UVector<Response*>);
 }
 
 #ifdef DEBUG
@@ -302,14 +293,6 @@ static void usp_end_businesses()
    U_TRACE(5, "::usp_end_businesses()")
 
    delete mc;
-
-   if (pvalue)
-      {
-      delete pvalue;
-      delete prequest;
-      delete presponse;
-      delete pvresponse;
-      }
 }
 #endif
 -->
@@ -317,43 +300,18 @@ static void usp_end_businesses()
 Content-Type: application/json
 -->
 <!--#code
-if (USP_JSON_REQUEST_PARSE(*prequest))
+UString type;
+
+if (USP_JFIND_REQUEST("type", type))
    {
-   uint32_t i, n;
-
-   // 1) identify user by TOKEN
-
-   (void) mc->findAll(); // mc->find(prequest->token);
-
-   for (i = 0, n = mc->vitem.size(); i < n; ++i)
+   if (type.equal(U_CONSTANT_TO_PARAM("localesData")))
       {
-      JSON_parse(mc->vitem[i], *presponse);
+      Response response;
 
-      // 2) Filter by RADIUS around LOCATION
-
-      if (true)
-         {
-         Response* nresponse;
-
-         U_NEW(Response, nresponse, Response(*presponse));
-
-         pvresponse->push_back(nresponse);
-         }
+      USP_JSON_OBJ_stringify(Response, response);
+      }
+   else if (type.equal(U_CONSTANT_TO_PARAM("remoteData")))
+      {
       }
-
-   n = pvresponse->size();
-
-   // 3) sort list by ranking algorithm
-
-   pvresponse->sort(Response::cmp_obj);
-
-   // 4) return first 20 businesses
-
-   if (n > 20) pvresponse->erase(20, n);
    }
-
-USP_JSON_stringify(*pvalue, UVector<Response*>, *pvresponse);
-
-pvalue->clear();
-pvresponse->clear();
 -->
diff --git a/src/ulib/orm/driver/orm_driver_sqlite.cpp b/src/ulib/orm/driver/orm_driver_sqlite.cpp
index 225a19b5..a5fcc624 100644
--- a/src/ulib/orm/driver/orm_driver_sqlite.cpp
+++ b/src/ulib/orm/driver/orm_driver_sqlite.cpp
@@ -45,10 +45,10 @@ void UOrmDriverSqlite::handlerError()
       U_ENTRY(SQLITE_PERM),         /* Access permission denied */
       U_ENTRY(SQLITE_ABORT),        /* Callback routine requested an abort */
       U_ENTRY(SQLITE_BUSY),         /* The database file is locked */
-      U_ENTRY(SQLITE_LOCKED),    /* A table in the database is locked */
+      U_ENTRY(SQLITE_LOCKED),       /* A table in the database is locked */
       U_ENTRY(SQLITE_NOMEM),        /* A malloc() failed */
       U_ENTRY(SQLITE_READONLY),     /* Attempt to write a readonly database */
-      U_ENTRY(SQLITE_INTERRUPT), /* Operation terminated by sqlite3_interrupt()*/
+      U_ENTRY(SQLITE_INTERRUPT),    /* Operation terminated by sqlite3_interrupt()*/
       U_ENTRY(SQLITE_IOERR),        /* Some kind of disk I/O error occurred */
       U_ENTRY(SQLITE_CORRUPT),      /* The database disk image is malformed */
       U_ENTRY(SQLITE_NOTFOUND),     /* Unknown opcode in sqlite3_file_control() */
@@ -56,24 +56,24 @@ void UOrmDriverSqlite::handlerError()
       U_ENTRY(SQLITE_CANTOPEN),     /* Unable to open the database file */
       U_ENTRY(SQLITE_PROTOCOL),     /* Database lock protocol error */
       U_ENTRY(SQLITE_EMPTY),        /* Database is empty */
-      U_ENTRY(SQLITE_SCHEMA),    /* The database schema changed */
-      U_ENTRY(SQLITE_TOOBIG),    /* String or BLOB exceeds size limit */
+      U_ENTRY(SQLITE_SCHEMA),       /* The database schema changed */
+      U_ENTRY(SQLITE_TOOBIG),       /* String or BLOB exceeds size limit */
       U_ENTRY(SQLITE_CONSTRAINT),   /* Abort due to constraint violation */
       U_ENTRY(SQLITE_MISMATCH),     /* Data type mismatch */
-      U_ENTRY(SQLITE_MISUSE),    /* Library used incorrectly */
+      U_ENTRY(SQLITE_MISUSE),       /* Library used incorrectly */
       U_ENTRY(SQLITE_NOLFS),        /* Uses OS features not supported on host */
       U_ENTRY(SQLITE_AUTH),         /* Authorization denied */
-      U_ENTRY(SQLITE_FORMAT),    /* Auxiliary database format error */
+      U_ENTRY(SQLITE_FORMAT),       /* Auxiliary database format error */
       U_ENTRY(SQLITE_RANGE),        /* 2nd parameter to sqlite3_bind out of range */
-      U_ENTRY(SQLITE_NOTADB),    /* File opened that is not a database file */
+      U_ENTRY(SQLITE_NOTADB),       /* File opened that is not a database file */
 #  ifdef SQLITE_NOTICE
-      U_ENTRY(SQLITE_NOTICE),    /* Notifications from sqlite3_log() */
+      U_ENTRY(SQLITE_NOTICE),       /* Notifications from sqlite3_log() */
 #  endif
 #  ifdef SQLITE_WARNING
       U_ENTRY(SQLITE_WARNING),      /* Warnings from sqlite3_log() */
 #  endif
-      U_ENTRY(SQLITE_ROW),       /* sqlite3_step() has another row ready */
-      U_ENTRY(SQLITE_DONE)       /* sqlite3_step() has finished executing */
+      U_ENTRY(SQLITE_ROW),          /* sqlite3_step() has another row ready */
+      U_ENTRY(SQLITE_DONE)          /* sqlite3_step() has finished executing */
    };
 
    if (UOrmDriver::errmsg  == 0) UOrmDriver::errmsg  = U_SYSCALL(sqlite3_errmsg,  "%p", (sqlite3*)UOrmDriver::connection);
diff --git a/src/ulib/string.cpp b/src/ulib/string.cpp
index a0efdcfd..ff509195 100644
--- a/src/ulib/string.cpp
+++ b/src/ulib/string.cpp
@@ -1923,7 +1923,7 @@ float UStringRep::strtof() const
       char* endptr;
       float result = ::strtof(str, &endptr);
 
-      U_INTERNAL_ASSERT_MINOR(endptr, eos)
+      U_INTERNAL_ASSERT(endptr <= eos)
 #  endif
 
       U_INTERNAL_DUMP("errno = %d", errno)
@@ -1951,7 +1951,7 @@ double UStringRep::strtod() const
       char* endptr;
       double result = ::strtod(str, &endptr);
 
-      U_INTERNAL_ASSERT_MINOR(endptr, eos)
+      U_INTERNAL_ASSERT(endptr <= eos)
 #  endif
 
       U_INTERNAL_DUMP("errno = %d", errno)
diff --git a/src/ulib/utility/string_ext.cpp b/src/ulib/utility/string_ext.cpp
index 124d84da..98e8ffc1 100644
--- a/src/ulib/utility/string_ext.cpp
+++ b/src/ulib/utility/string_ext.cpp
@@ -146,8 +146,8 @@ UString UStringExt::numberToString(uint64_t n)
 {
    U_TRACE(0, "UStringExt::numberToString(%llu)", n)
 
-   unsigned int i;
    UString x(32U);
+   unsigned int i;
    uint64_t u = 1024ULL;
 
    for (i = 0; i < U_CONSTANT_SIZE("bKMGTPEZY"); ++i)
@@ -189,7 +189,7 @@ UString UStringExt::expandTab(const char* s, uint32_t n, int tab)
          {
          len = _end - start;
 
-         (void) x.reserve(x.size() + len + tab);
+         (void) x.reserve(len + tab);
 
          if (len)
             {
@@ -242,7 +242,7 @@ UString UStringExt::substitute(const char* s, uint32_t n, const char* a, uint32_
 
       U_INTERNAL_DUMP("start = %u _end = %u len = %u", start, _end, len)
 
-      (void) x.reserve(x.size() + len + n2);
+      (void) x.reserve(len + n2);
 
       if (len)
          {
diff --git a/src/ulib/utility/uhttp.cpp b/src/ulib/utility/uhttp.cpp
index 7133dc97..9296af01 100644
--- a/src/ulib/utility/uhttp.cpp
+++ b/src/ulib/utility/uhttp.cpp
@@ -3843,7 +3843,6 @@ manage:
 
 #if defined(DEBUG) && !defined(U_STATIC_ONLY)
    if (file_data == 0         &&
-       isGETorHEAD()          &&
        U_http_is_nocache_file &&
        file->getSuffix().empty())
       {
@@ -3862,6 +3861,8 @@ manage:
          manageDataForCache();
 
          U_INTERNAL_ASSERT_POINTER(file_data)
+
+         UClientImage_Base::setRequestInFileCache();
          }
       }
 #endif
@@ -4846,7 +4847,8 @@ void UHTTP::clearSessionSSL()
  *    in pair with user login, and sends session id to browser in response as cookie. Browser stores cookie.
  * 3) User visits any page on this domain and browser sends a cookie to server for each request.
  * 4) ULib server checks if cookie has been sent, if such cookie exists in server storage with pair with login. Identifies user, provides access to his private content.
- * 5) Logout button removes the cookie from browser and sid-login pair from server storage. Browser does not send cookies, server does not see it and does not see sid-login pair
+ * 5) Logout button removes the cookie from browser and sid-login pair from server storage. Browser does not send cookies, server does not see it and does not see
+ *    sid-login pair
  */
 
 void UHTTP::addSetCookie(const UString& cookie)
@@ -5391,7 +5393,7 @@ __pure int UHTTP::getFormFirstNumericValue(int _min, int _max)
 
       U_INTERNAL_DUMP("query = %.*S", U_HTTP_QUERY_TO_TRACE)
 
-      do { ++ptr; } while (*ptr != '=');
+      ptr = (const char*) memchr(ptr, '=', U_http_info.query_len);
 
       if (u__isdigit(*++ptr))
          {
@@ -5516,6 +5518,7 @@ uint32_t UHTTP::processForm()
       {
       U_ASSERT(isPOST())
 
+      // -------------------------------------------------------------------------
       // POST
       // -------------------------------------------------------------------------
       // Content-Type: application/x-www-form-urlencoded OR multipart/form-data...
@@ -5773,7 +5776,10 @@ void UHTTP::handlerResponse()
       {
       U_INTERNAL_DUMP("U_http_method_not_implemented = %b", U_http_method_not_implemented)
 
-      if (U_http_method_not_implemented) (void) UClientImage_Base::wbuffer->assign(U_CONSTANT_TO_PARAM("Your browser request a method that this server has not implemented"));
+      if (U_http_method_not_implemented)
+         {
+         (void) UClientImage_Base::wbuffer->assign(U_CONSTANT_TO_PARAM("Your browser request a method that this server has not implemented"));
+         }
       else
          {
          (void) UClientImage_Base::wbuffer->assign(U_CONSTANT_TO_PARAM("Allow: "
@@ -6194,21 +6200,30 @@ void UHTTP::setDynamicResponse()
 
    ptr = ext->data();
 
-#ifdef USE_LIBZ
+#ifndef USE_LIBZ
+   bool bcompress = false;
+#else
    bool bcompress = (U_http_is_accept_gzip &&
                      UClientImage_Base::wbuffer->size() > (U_http_info.endHeader + U_MIN_SIZE_FOR_DEFLATE));
-#else
-   bool bcompress = false;
 #endif
 
    U_INTERNAL_DUMP("bcompress = %b", bcompress)
 
    if (U_http_info.endHeader)
       {
-      U_INTERNAL_ASSERT_MAJOR(clength, U_http_info.endHeader)
+      U_INTERNAL_ASSERT(clength >= U_http_info.endHeader)
 
       clength -= U_http_info.endHeader;
 
+      if (clength == 0) // no response
+         {
+         UClientImage_Base::body->clear(); // clean body to avoid writev() in response...
+
+         UClientImage_Base::wbuffer->clear();
+
+         goto no_response;
+         }
+
       pEndHeader = UClientImage_Base::wbuffer->data();
 
       if (bcompress == false) goto no_compress;
@@ -6338,6 +6353,7 @@ end:
 
    ext->size_adjust(ptr1);
 
+no_response:
    handlerResponse();
 }
 
@@ -8903,7 +8919,7 @@ U_NO_EXPORT void UHTTP::setCGIShellScript(UString& command)
          c = (memchr(ptr, '"', sz) ? '\'' : '"');
          }
 
-      (void) command.reserve(command.size() + sz + 4U);
+      (void) command.reserve(sz + 4U);
 
       command.snprintf_add(" %c%.*s%c ", c, sz, ptr, c);
       }
@@ -9440,7 +9456,9 @@ loop:
 
       UClientImage_Base::body->clear();
 
-      (void) set_cookie->append(UClientImage_Base::wbuffer->data(), sz - U_CONSTANT_SIZE(U_CRLF)); // NB: we use the var 'set_cookie' for opportunism within handlerResponse()...
+      // NB: we use the var 'set_cookie' for opportunism within handlerResponse()...
+
+      (void) set_cookie->append(UClientImage_Base::wbuffer->data(), sz - U_CONSTANT_SIZE(U_CRLF));
 
       setResponse();
 
diff --git a/tests/base/ok/sprintf.ok b/tests/base/ok/sprintf.ok
index 81cb47c5..5af1bea2 100644
--- a/tests/base/ok/sprintf.ok
+++ b/tests/base/ok/sprintf.ok
@@ -94,7 +94,6 @@ prefix  6d      6o      6x      6X      6u
 123.456 should be 123.456
 10 should be 10
 0.02 should be 0.02
-0.10000000000000001
 Test ok.
 sprintf (buf, "%07llo", 040000000000ll) = 40000000000
 printf ("%c", 257) = 

diff --git a/tests/base/sprintf.test b/tests/base/sprintf.test
index 6bd2db10..9f11c5fd 100755
--- a/tests/base/sprintf.test
+++ b/tests/base/sprintf.test
@@ -9,4 +9,4 @@ start_msg sprintf
 start_prg sprintf
 
 # Test against expected output
-test_output_wc w sprintf
+test_output_diff sprintf
diff --git a/tests/base/test_sprintf.c b/tests/base/test_sprintf.c
index 5e69d400..8cdca9c8 100644
--- a/tests/base/test_sprintf.c
+++ b/tests/base/test_sprintf.c
@@ -138,8 +138,6 @@ static void test3(void)
    char buf[200];
    const char* tmp;
 
-   printf("%.17f\n",(1.0/x/10.0+1.0)*x-x);
-
    u__snprintf(buf,sizeof(buf),"%*s%*s%*s",-1,"one",-20,"two",-30,"three");
    result |= strcmp(buf, "onetwo                 three                         ");
    tmp = (result != 0 ? "Test failed!" : "Test ok.");
diff --git a/tests/examples/businesses.test b/tests/examples/businesses.test
index 393560eb..ab742ea5 100755
--- a/tests/examples/businesses.test
+++ b/tests/examples/businesses.test
@@ -50,8 +50,8 @@ DIR_CMD="../../examples/userver"
 
 start_prg_background userver_tcp -c inp/webserver.cfg
 
-send_req $NCAT localhost 8080 inp/http/businesses.req businesses 2
-send_req $NCAT localhost 8080 inp/http/businesses.req businesses 2
+send_req $NCAT localhost 8080 inp/http/businesses1.req businesses 2
+send_req $NCAT localhost 8080 inp/http/businesses2.req businesses 2
 
 kill_prg userver_tcp TERM
 
diff --git a/tests/examples/inp/http/businesses1.req b/tests/examples/inp/http/businesses1.req
new file mode 100644
index 00000000..4c1074dd
--- /dev/null
+++ b/tests/examples/inp/http/businesses1.req
@@ -0,0 +1,7 @@
+POST /servlet/businesses HTTP/1.1
+Host: localhost:8080
+Connection: Keep-Alive
+Content-Type: application/jsonrequest
+Content-Length: 106
+
+{ "token": "A619828KAIJ6D3", "type": "localesData", "radius": "near", "location": "40.7831 N, 73.9712 W" }
diff --git a/tests/examples/inp/http/businesses2.req b/tests/examples/inp/http/businesses2.req
new file mode 100644
index 00000000..10703657
--- /dev/null
+++ b/tests/examples/inp/http/businesses2.req
@@ -0,0 +1,7 @@
+POST /servlet/businesses HTTP/1.1
+Host: localhost:8080
+Connection: Keep-Alive
+Content-Type: application/jsonrequest
+Content-Length: 106
+
+{ "token": "A619828KAIJ6D3", "type": "localesDita", "radius": "near", "location": "40.7831 N, 73.9712 W" }
diff --git a/tests/examples/ok/businesses.ok b/tests/examples/ok/businesses.ok
index bb459721..a4d5a193 100644
--- a/tests/examples/ok/businesses.ok
+++ b/tests/examples/ok/businesses.ok
@@ -1,15 +1,13 @@
 HTTP/1.1 200 OK
-Date: Thu, 21 Apr 2016 13:40:48 GMT
+Date: Sat, 10 Sep 2016 16:16:24 GMT
 Server: ULib
 Connection: close
-Content-Length: 418
+Content-Length: 56
 Content-Type: application/json
 
-[{"name":"Business 1","rating":"Red","address":"123 park lane, New York, NY, USA 10028","phone":"12126465788","url":"www.business1.com"},{"name":"Business 2","rating":"Yellow","address":"837 mott street, New York, NY, USA 10019","phone":"12124829384","url":"www.business2.com"},{"name":"Business 3","rating":"Green","address":"838 mott street, New York, NY, USA 10019","phone":"12124829385","url":"www.business3.com"}]HTTP/1.1 200 OK
-Date: Thu, 21 Apr 2016 13:40:49 GMT
+{"name":"","rating":"","address":"","phone":"","url":""}HTTP/1.1 200 OK
+Date: Sat, 10 Sep 2016 16:16:24 GMT
 Server: ULib
 Connection: close
-Content-Length: 418
-Content-Type: application/json
+Content-Length: 0
 
-[{"name":"Business 1","rating":"Red","address":"123 park lane, New York, NY, USA 10028","phone":"12126465788","url":"www.business1.com"},{"name":"Business 2","rating":"Yellow","address":"837 mott street, New York, NY, USA 10019","phone":"12124829384","url":"www.business2.com"},{"name":"Business 3","rating":"Green","address":"838 mott street, New York, NY, USA 10019","phone":"12124829385","url":"www.business3.com"}]
\ No newline at end of file
diff --git a/tests/ulib/json.test b/tests/ulib/json.test
index 83cb95ff..7a3c848f 100755
--- a/tests/ulib/json.test
+++ b/tests/ulib/json.test
@@ -16,4 +16,4 @@ unset UMEMPOOL
 start_prg json < inp/json.input
 
 # Test against expected output
-test_output_wc l json
+test_output_diff json
diff --git a/tests/ulib/ok/json.ok b/tests/ulib/ok/json.ok
deleted file mode 100644
index ec59666e..00000000
--- a/tests/ulib/ok/json.ok
+++ /dev/null
@@ -1,66 +0,0 @@
-randomNumber = "9342"
-{"Extra value after close":true}
-{"Numbers cannot have leading zeroes":13}
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-{"count":1234,"name":{"aka":"T.E.S.T.","id":123987},"attribute":["random","short","bold",12,{"height":7,"width":64}],"test":{"1":{"2":{"3":{"coord":[1,2]}}}}}
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0,1221,1222,1223,1224,1225,1226,1227,1228,1229,1230,1231,1232,1233,1234,1235,1236,1237,1238,1239,1240,1241,1242,1243,1244,1245,1246,1247,1248,1249,1250,1251,1252,1253,1254,1255,1256,1257,1258,1259,1260,1261,1262,1263,1264,1265,1266,1267,1268,1269,1270,1271,1272,1273,1274,1275,1276,1277,1278,1279,1280,1281,1282,1283,1284,1285,1286,1287,1288,1289,1290,1291,1292,1293,1294,1295,1296,1297,1298,1299,1300,1301,1302,1303,1304,1305,1306,1307,1308,1309,1310,1311,1312,1313,1314,1315,1316,1317,1318,1319,1320,1321,1322,1323,1324,1325,1326,1327,1328,1329,1330,1331,1332,1333,1334,1335,1336,1337,1338,1339,1340,1341,1342,1343,1344,1345,1346,1347,1348,1349,1350,1351,1352,1353,1354,1355,1356,1357,1358,1359,1360,1361,1362,1363,1364,1365,1366,1367,1368,1369,1370,1371,1372,1373,1374,1375,1376,1377,1378,1379,1380,1381,1382,1383,1384,1385,1386,1387,1388,1389,1390,1391,1392,1393,1394,1395,1396,1397,1398,1399,1400,1401,1402,1403,1404,1405,1406,1407,1408,1409,1410,1411,1412,1413,1414,1415,1416,1417,1418,1419,1420,1421,1422,1423,1424,1425,1426,1427,1428,1429,1430,1431,1432,1433,1434,1435,1436,1437,1438,1439,1440,1441,1442,1443,1444,1445,1446,1447,1448,1449,1450,1451,1452,1453,1454,1455,1456,1457,1458,1459,1460,1461,1462,1463,1464,1465,1466,1467,1468,1469,1470,1471,1472,1473,1474,1475,1476,1477,1478,1479,1480,1481,1482,1483,1484,1485,1486,1487,1488,1489,1490,1491,1492,1493,1494,1495,1496,1497,1498,1499,1500,1501,1502,1503,1504,1505,1506,1507,1508,1509,1510,1511,1512,1513,1514,1515,1516,1517,1518,1519,1520,1521,1522,1523,1524,1525,1526,1527,1528,1529,1530,1531,1532,1533,1534,1535,1536,1537,1538,1539,1540,1541,1542,1543,1544,1545,1546,1547,1548,1549,1550,1551,1552,1553,1554,1555,1556,1557,1558,1559,1560,1561,1562,1563,1564,1565,1566,1567,1568,1569,1570,1571,1572,1573,1574,1575,1576,1577,1578,1579,1580,1581,1582,1583,1584,1585,1586,1587,1588,1589,1590,1591,1592,1593,1594,1595,1596,1597,1598,1599,1600,1601,1602,1603,1604,1605,1606,1607,1608,1609,1610,1611,1612,1613,1614,1615,1616,1617,1618,1619,1620,1621,1622,1623,1624,1625,1626,1627,1628,1629,1630,1631,1632,1633,1634,1635,1636,1637,1638,1639,1640,1641,1642,1643,1644,1645,1646,1647,1648,1649,1650,1651,1652,1653,1654,1655,1656,1657,1658,1659,1660,1661,1662,1663,1664,1665,1666,1667,1668,1669,1670,1671,1672,1673,1674,1675,1676,1677,1678,1679,1680,1681,1682,1683,1684,1685,1686,1687,1688,1689,1690,1691,1692,1693,1694,1695,1696,1697,1698,1699,1700,1701,1702,1703,1704,1705,1706,1707,1708,1709,1710,1711,1712,1713,1714,1715,1716,1717,1718,1719,1720,1721,1722,1723,1724,1725,1726,1727,1728,1729,1730,1731,1732,1733,1734,1735,1736,1737,1738,1739,1740,1741,1742,1743,1744,1745,1746,1747,1748,1749,1750,1751,1752,1753,1754,1755,1756,1757,1758,1759,1760,1761,1762,1763,1764,1765,1766,1767,1768,1769,1770,1771,1772,1773,1774,1775,1776,1777,1778,1779,1780,1781,1782,1783,1784,1785,1786,1787,1788,1789,1790,1791,1792,1793,1794,1795,1796,1797,1798,1799,1800,1801,1802,1803,1804,1805,1806,1807,1808,1809,1810,1811,1812,1813,1814,1815,1816,1817,1818,1819,1820,1821,1822,1823,1824,1825,1826,1827,1828,1829,1830,1831,1832,1833,1834,1835,1836,1837,1838,1839,1840,1841,1842,1843,1844,1845,1846,1847,1848,1849,1850,1851,1852,1853,1854,1855,1856,1857,1858,1859,1860,1861,1862,1863,1864,1865,1866,1867,1868,1869,1870,1871,1872,1873,1874,1875,1876,1877,1878,1879,1880,1881,1882,1883,1884,1885,1886,1887,1888,1889,1890,1891,1892,1893,1894,1895,1896,1897,1898,1899,1900,1901,1902,1903,1904,1905,1906,1907,1908,1909,1910,1911,1912,1913,1914,1915,1916,1917,1918,1919,1920,1921,1922,1923,1924,1925,1926,1927,1928,1929,1930,1931,1932,1933,1934,1935,1936,1937,1938,1939,1940,1941,1942,1943,1944,1945,1946,1947,1948,1949,1950,1951,1952,1953,1954,1955,1956,1957,1958,1959,1960,1961,1962,1963,1964,1965,1966,1967,1968,1969,1970,1971,1972,1973,1974,1975,1976,1977,1978,1979,1980,1981,1982,1983,1984,1985,1986,1987,1988,1989,1990,1991,1992,1993,1994,1995,1996,1997,1998,1999,2000,2001,2002,2003,2004,2005,2006,2007,2008,2009,2010,2011,2012,2013,2014,2015,2016,2017,2018,2019,2020,2021,2022,2023,2024,2025,2026,2027,2028,2029,2030,2031,2032,2033,2034,2035,2036,2037,2038,2039,2040,2041,2042,2043,2044,2045,2046,2047,2048,2049,2050,2051,2052,2053,2054,2055,2056,2057,2058,2059,2060,2061,2062,2063,2064,2065,2066,2067,2068,2069,2070,2071,2072,2073,2074,2075,2076,2077,2078,2079,2080,2081,2082,2083,2084,2085,2086,2087,2088,2089,2090,2091,2092,2093,2094,2095,2096,2097,2098,2099,2100,2101,2102,2103,2104,2105,2106,2107,2108,2109,2110,2111,2112,2113,2114,2115,2116,2117,2118]]
-{}
-{"count":1234}
-{"count":1234,"name":"test","attribute":"random"}
-{"":1234}
-
-dataType = (18 "NUMBER_VALUE") query = "{'randomNumber'" result(4) = "8427" UValue::jread_elements = 1 UValue::jread_error = (0 "Ok")
-dataType = (17 "OBJECT_VALUE") query = "" result(254) = "{  \"astring\": \"This is a string\",\n  \"number1\": 42,\n  \"number2\":  -123.45,\n  \"anObject\":{\"one\":1,\"two\":{\"obj2.1\":21,\"obj2.2\":22}," UValue::jread_elements = 8 UValue::jread_error = (0 "Ok")
-dataType = (17 "OBJECT_VALUE") query = "[1" result(0) = "" UValue::jread_elements = 0 UValue::jread_error = (1 "JSON does not match Query")
-dataType = (15 "STRING_VALUE") query = "{'astring'" result(16) = "This is a string" UValue::jread_elements = 1 UValue::jread_error = (0 "Ok")
-dataType = (18 "NUMBER_VALUE") query = "{'number1'" result(2) = "42" UValue::jread_elements = 1 UValue::jread_error = (0 "Ok")
-dataType = (18 "NUMBER_VALUE") query = "{'number2'" result(7) = "-123.45" UValue::jread_elements = 1 UValue::jread_error = (0 "Ok")
-dataType = (17 "OBJECT_VALUE") query = "{'anObject'" result(53) = "{\"one\":1,\"two\":{\"obj2.1\":21,\"obj2.2\":22},\"three\":333}" UValue::jread_elements = 3 UValue::jread_error = (0 "Ok")
-dataType = (16 "ARRAY_VALUE") query = "{'anArray'" result(50) = "[0, \"one\", {\"two.0\":20,\"two.1\":21}, 3, [4,44,444]]" UValue::jread_elements = 5 UValue::jread_error = (0 "Ok")
-dataType = (0 "NULL_VALUE") query = "{'isnull'" result(4) = "null" UValue::jread_elements = 1 UValue::jread_error = (0 "Ok")
-dataType = (1 "BOOLEAN_VALUE") query = "{'yes'" result(4) = "true" UValue::jread_elements = 1 UValue::jread_error = (0 "Ok")
-dataType = (1 "BOOLEAN_VALUE") query = "{'no'" result(5) = "false" UValue::jread_elements = 1 UValue::jread_error = (0 "Ok")
-dataType = (24 "U_JR_EOBJECT") query = "{'missing'" result(0) = "" UValue::jread_elements = 0 UValue::jread_error = (5 "Object key not found")
-dataType = (17 "OBJECT_VALUE") query = "{'anObject'{'two'" result(25) = "{\"obj2.1\":21,\"obj2.2\":22}" UValue::jread_elements = 2 UValue::jread_error = (0 "Ok")
-dataType = (18 "NUMBER_VALUE") query = "{'anObject' {'two' {'obj2.2'" result(2) = "22" UValue::jread_elements = 1 UValue::jread_error = (0 "Ok")
-dataType = (18 "NUMBER_VALUE") query = "{'anObject'{'three'" result(3) = "333" UValue::jread_elements = 1 UValue::jread_error = (0 "Ok")
-dataType = (15 "STRING_VALUE") query = "{'anArray' [1" result(3) = "one" UValue::jread_elements = 1 UValue::jread_error = (0 "Ok")
-dataType = (18 "NUMBER_VALUE") query = "{'anArray' [2 {'two.1'" result(2) = "21" UValue::jread_elements = 1 UValue::jread_error = (0 "Ok")
-dataType = (18 "NUMBER_VALUE") query = "{'anArray' [4 [2" result(3) = "444" UValue::jread_elements = 1 UValue::jread_error = (0 "Ok")
-dataType = (22 "U_JR_EARRAY") query = "{'anArray' [999" result(0) = "" UValue::jread_elements = 0 UValue::jread_error = (10 "Array element not found (bad index)")
-dataType = (17 "OBJECT_VALUE") query = "{3" result(8) = "anObject" UValue::jread_elements = 3 UValue::jread_error = (0 "Ok")
-dataType = (17 "OBJECT_VALUE") query = "{'anObject' {1" result(3) = "two" UValue::jread_elements = 1 UValue::jread_error = (0 "Ok")
-dataType = (17 "OBJECT_VALUE") query = "{999" result(0) = "" UValue::jread_elements = 8 UValue::jread_error = (11 "Object key not found (bad index)")
-
-"anArray": = "[0, \"one\", {\"two.0\":20,\"two.1\":21}, 3, [4,44,444]]"
-anArray[0] = "0"
-anArray[1] = "one"
-anArray[2] = "{\"two.0\":20,\"two.1\":21}"
-anArray[3] = "3"
-anArray[4] = "[4,44,444]"
-
-anArray[2] objectKey[1] = "two.1"
-
diff --git a/tests/ulib/test_json.cpp b/tests/ulib/test_json.cpp
index b7c43a1e..bbcbcced 100644
--- a/tests/ulib/test_json.cpp
+++ b/tests/ulib/test_json.cpp
@@ -270,12 +270,24 @@ U_EXPORT main (int argc, char* argv[])
                                                "\"hits\":{\"total\":1,\"max_score\":1.0,\"hits\":[{\"_index\":\"tfb\",\"_type\":\"world\",\"_id\":\"6464\",\"_score\":1.0,"
                                                "\"_source\":{ \"randomNumber\" : 9342 }}]}}"), filename, content, array, result, result1;
 
-   (void) UValue::jread(searchJson, U_STRING_FROM_CONSTANT("{'randomNumber'"), result);
+   (void) UValue::jfind(searchJson, U_CONSTANT_TO_PARAM("randomNumber"), result);
 
    cout.write(buffer, u__snprintf(buffer, sizeof(buffer), "randomNumber = %V\n", result.rep));
 
    result.clear();
 
+   int city;
+   double pricePoint;
+
+   (void) UValue::jfind(U_STRING_FROM_CONSTANT("{ \"pricePoint\" : 2.48333333333333, \"socialWeight\" : 8.75832720587083, \"gender\" : 0, \"lessThan16\" : false }"),
+                        U_CONSTANT_TO_PARAM("pricePoint"), pricePoint);
+
+   U_INTERNAL_ASSERT_EQUALS(pricePoint, 2.48333333333333)
+
+   (void) UValue::jfind(U_STRING_FROM_CONSTANT("{ \"cityKey\" : 0 }"), U_CONSTANT_TO_PARAM("cityKey"), city);
+
+   U_INTERNAL_ASSERT_EQUALS(city, 0)
+
    testMap();
    testVector();
    testObject();