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Code Issues Releases Wiki Activity

Add a default BSWAP32, at the request of

Browse Source 
http://code.google.com/p/google-ctemplate/issues/detail?id=76
(needed for AIX)

R=jad
DELTA=19  (13 added, 6 deleted, 0 changed)


Revision created by MOE tool push_codebase.
MOE_MIGRATION=3513
This commit is contained in:
csilvers+ctemplate@google.com 2011-10-26 11:35:23 +00:00
parent ee80fa44b9
commit 17339f2f43
1 changed files with 13 additions and 6 deletions
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19
src/base/macros.h
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@ -72,6 +72,13 @@ typedef unsigned __int64 uint64;
#elif defined(BSWAP_32) // Solaris 10
// Solaris defines BSWSAP_32 as a macro in sys/byteorder.h (already #included)
# define BSWAP32(x) BSWAP_32(x)
#elif !defined(BSWAP32)
# define BSWAP32(x) ((((x) & 0x000000ff) << 24) | \
(((x) & 0x0000ff00) << 8) | \
(((x) & 0x00ff0000) >> 8) | \
(((x) & 0xff000000) >> 24));
#else
# define CTEMPLATE_BSWAP32_ALREADY_DEFINED
#endif
#if defined(__i386__) || defined(__x86_64__) || defined(_M_IX86) || defined(_M_X64)
@ -79,9 +86,6 @@ typedef unsigned __int64 uint64;
# define UNALIGNED_LOAD32(_p) (*reinterpret_cast<const uint32 *>(_p))
#elif defined(__ppc__) || defined(__ppc64__)
// We know they allow unaligned memory access and are big-endian
# ifndef BSWAP32 // Could just define this in C, but might as well do it fast
# error Need_to_define_BSWAP32_for_your_architecture
# endif
# define UNALIGNED_LOAD32(_p) BSWAP32(*reinterpret_cast<const uint32 *>(_p))
#elif (BYTE_ORDER == 1234) || (_BYTE_ORDER == 1234) || defined(_LITTLE_ENDIAN)
// Use memcpy to align the memory properly
@ -91,9 +95,6 @@ typedef unsigned __int64 uint64;
return t;
}
#elif (BYTE_ORDER == 4321) || (_BYTE_ORDER == 4321) || defined(_BIG_ENDIAN)
# ifndef BSWAP32 // Could just define this in C, but might as well do it fast
# error Need_to_define_BSWAP32_for_your_architecture
# endif
inline uint32 UNALIGNED_LOAD32(const void *p) {
uint32 t;
memcpy(&t, p, sizeof(t));
@ -104,4 +105,10 @@ typedef unsigned __int64 uint64;
# error Need to define UNALIGNED_LOAD32 for this architecture
#endif
#ifndef CTEMPLATE_BSWAP32_ALREADY_DEFINED
# undef BSWAP32 // don't leak outside this file
#else
# undef CTEMPLATE_BSWAP32_ALREADY_DEFINED // just cleaning up
#endif
#endif // CTEMPLATE_MACROS_H_