Mercurial > public > mercurial-scm > hg-stable
diff contrib/python-zstandard/zstd/common/mem.h @ 42070:675775c33ab6
zstandard: vendor python-zstandard 0.11
The upstream source distribution from PyPI was extracted. Unwanted
files were removed.
The clang-format ignore list was updated to reflect the new source
of files.
The project contains a vendored copy of zstandard 1.3.8. The old
version was 1.3.6. This should result in some minor performance wins.
test-check-py3-compat.t was updated to reflect now-passing tests on
Python 3.8.
Some HTTP tests were updated to reflect new zstd compression output.
# no-check-commit because 3rd party code has different style guidelines
Differential Revision: https://phab.mercurial-scm.org/D6199
| author | Gregory Szorc <gregory.szorc@gmail.com> |
|---|---|
| date | Thu, 04 Apr 2019 17:34:43 -0700 |
| parents | 73fef626dae3 |
| children | 69de49c4e39c |
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--- a/contrib/python-zstandard/zstd/common/mem.h Thu Apr 04 15:24:03 2019 -0700 +++ b/contrib/python-zstandard/zstd/common/mem.h Thu Apr 04 17:34:43 2019 -0700 @@ -39,6 +39,10 @@ # define MEM_STATIC static /* this version may generate warnings for unused static functions; disable the relevant warning */ #endif +#ifndef __has_builtin +# define __has_builtin(x) 0 /* compat. with non-clang compilers */ +#endif + /* code only tested on 32 and 64 bits systems */ #define MEM_STATIC_ASSERT(c) { enum { MEM_static_assert = 1/(int)(!!(c)) }; } MEM_STATIC void MEM_check(void) { MEM_STATIC_ASSERT((sizeof(size_t)==4) || (sizeof(size_t)==8)); } @@ -198,7 +202,8 @@ { #if defined(_MSC_VER) /* Visual Studio */ return _byteswap_ulong(in); -#elif defined (__GNUC__) && (__GNUC__ * 100 + __GNUC_MINOR__ >= 403) +#elif (defined (__GNUC__) && (__GNUC__ * 100 + __GNUC_MINOR__ >= 403)) \ + || (defined(__clang__) && __has_builtin(__builtin_bswap32)) return __builtin_bswap32(in); #else return ((in << 24) & 0xff000000 ) | @@ -212,7 +217,8 @@ { #if defined(_MSC_VER) /* Visual Studio */ return _byteswap_uint64(in); -#elif defined (__GNUC__) && (__GNUC__ * 100 + __GNUC_MINOR__ >= 403) +#elif (defined (__GNUC__) && (__GNUC__ * 100 + __GNUC_MINOR__ >= 403)) \ + || (defined(__clang__) && __has_builtin(__builtin_bswap64)) return __builtin_bswap64(in); #else return ((in << 56) & 0xff00000000000000ULL) |