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Switch to posix_memalign when available 

It is easier to defer to the runtime for aligned allocations. We found the preprocessor macros needed to identitify the availability. Also see https://forum.kde.org/viewtopic.php?p=66274
pull/580/merge
Jeffrey Walton 2018-01-30 21:05:55 -05:00
parent e21f882f50
commit 22e783a378
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1 changed files with 3 additions and 2 deletions
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5
config.h
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@ -690,12 +690,13 @@ NAMESPACE_END
#define CRYPTOPP_BOOL_ALIGN16 0
#endif
// how to allocate 16-byte aligned memory (for SSE2)
// How to allocate 16-byte aligned memory (for SSE2)
// posix_memalign see https://forum.kde.org/viewtopic.php?p=66274
#if defined(_MSC_VER)
#define CRYPTOPP_MM_MALLOC_AVAILABLE
#elif defined(__APPLE__)
#define CRYPTOPP_APPLE_MALLOC_AVAILABLE
#elif defined(_AIX) || defined(__FreeBSD__)
#elif defined(_GNU_SOURCE) || ((_XOPEN_SOURCE + 0) >= 600) || defined(_AIX)
#define CRYPTOPP_POSIX_MEMALIGN_AVAILABLE
#elif defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__)
#define CRYPTOPP_MALLOC_ALIGNMENT_IS_16