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| author | René Scharfe <rene.scharfe@lsrfire.ath.cx> | 2012-05-22 22:36:25 +0200 |
|---|---|---|
| committer | Junio C Hamano <gitster@pobox.com> | 2012-05-22 14:39:49 -0700 |
| commit | 9322ce21eeb4ad92d0cdd37d0d62a69368042fec (patch) | |
| tree | 7ef2ad2a7110619b33fe850c85170ad5cdc0fc1e /xdiff/xutils.c | |
| parent | 6f1af028ce0654ef6233dff06701a989d5703bc4 (diff) | |
| download | git-9322ce21eeb4ad92d0cdd37d0d62a69368042fec.tar.gz | |
xdiff: avoid compiler warnings with XDL_FAST_HASH on 32-bit machines
Import macro REPEAT_BYTE from Linux (arch/x86/include/asm/word-at-a-time.h)
to avoid 64-bit integer literals, which cause some 32-bit compilers to
print warnings.
Reported-by: Øyvind A. Holm <sunny@sunbase.org>
Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'xdiff/xutils.c')
| -rw-r--r-- | xdiff/xutils.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/xdiff/xutils.c b/xdiff/xutils.c index 1b3b471ac8..277ccdff02 100644 --- a/xdiff/xutils.c +++ b/xdiff/xutils.c @@ -280,9 +280,11 @@ static unsigned long xdl_hash_record_with_whitespace(char const **data, #ifdef XDL_FAST_HASH -#define ONEBYTES 0x0101010101010101ul -#define NEWLINEBYTES 0x0a0a0a0a0a0a0a0aul -#define HIGHBITS 0x8080808080808080ul +#define REPEAT_BYTE(x) ((~0ul / 0xff) * (x)) + +#define ONEBYTES REPEAT_BYTE(0x01) +#define NEWLINEBYTES REPEAT_BYTE(0x0a) +#define HIGHBITS REPEAT_BYTE(0x80) /* Return the high bit set in the first byte that is a zero */ static inline unsigned long has_zero(unsigned long a) |