undef/git-commit-vandalism
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

compat/bswap.h: detect endianness on more platforms that don't use BYTE_ORDER

Browse Source 
Signed-off-by: Charles Bailey <cbailey32@bloomberg.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Charles Bailey 2014-05-02 08:55:29 +01:00 committed by Junio C Hamano
parent 7e76a2f975
commit 3cf6bb3406
1 changed files with 25 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

35
compat/bswap.h
View File

@ -101,19 +101,34 @@ static inline uint64_t git_bswap64(uint64_t x)
#undef ntohll
#undef htonll
#if !defined(__BYTE_ORDER)
# if defined(BYTE_ORDER) && defined(LITTLE_ENDIAN) && defined(BIG_ENDIAN)
# define __BYTE_ORDER BYTE_ORDER
# define __LITTLE_ENDIAN LITTLE_ENDIAN
# define __BIG_ENDIAN BIG_ENDIAN
#if defined(BYTE_ORDER) && defined(LITTLE_ENDIAN) && defined(BIG_ENDIAN)
# define GIT_BYTE_ORDER BYTE_ORDER
# define GIT_LITTLE_ENDIAN LITTLE_ENDIAN
# define GIT_BIG_ENDIAN BIG_ENDIAN
#elif defined(__BYTE_ORDER) && defined(__LITTLE_ENDIAN) && defined(__BIG_ENDIAN)
# define GIT_BYTE_ORDER __BYTE_ORDER
# define GIT_LITTLE_ENDIAN __LITTLE_ENDIAN
# define GIT_BIG_ENDIAN __BIG_ENDIAN
#else
# define GIT_BIG_ENDIAN 4321
# define GIT_LITTLE_ENDIAN 1234
# if defined(_BIG_ENDIAN) && !defined(_LITTLE_ENDIAN)
# define GIT_BYTE_ORDER GIT_BIG_ENDIAN
# elif defined(_BIG_ENDIAN) && !defined(_LITTLE_ENDIAN)
# define GIT_BYTE_ORDER GIT_LITTLE_ENDIAN
# else
# error "Cannot determine endianness"
# endif
#endif
#if !defined(__BYTE_ORDER)
# error "Cannot determine endianness"
#endif
#if __BYTE_ORDER == __BIG_ENDIAN
#if GIT_BYTE_ORDER == GIT_BIG_ENDIAN
# define ntohll(n) (n)
# define htonll(n) (n)
#else