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| author | thevenyp <thevenyp@280ebfd0-de03-0410-8827-d642c229c3f4> | 2008-02-05 17:08:25 +0000 |
|---|---|---|
| committer | thevenyp <thevenyp@280ebfd0-de03-0410-8827-d642c229c3f4> | 2008-02-05 17:08:25 +0000 |
| commit | e8f775919fbb7e1b9ea4d610bd27c9c377df67d9 (patch) | |
| tree | 80c7af6882f87ad48171ca242b1869c4a19c260b /mpfr-gmp.h | |
| parent | 31f8b7cf4ddcbecdb7f35829009eabda90994426 (diff) | |
| download | mpfr-e8f775919fbb7e1b9ea4d610bd27c9c377df67d9.tar.gz | |
MPN_ZERO (dst, n) doesn't call memset when n==0, it prevents warning when compiled with gcc -D_FORTIFY_SOURCE
git-svn-id: svn://scm.gforge.inria.fr/svn/mpfr/trunk@5261 280ebfd0-de03-0410-8827-d642c229c3f4
Diffstat (limited to 'mpfr-gmp.h')
| -rw-r--r-- | mpfr-gmp.h | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/mpfr-gmp.h b/mpfr-gmp.h index 56869050f..8fd395975 100644 --- a/mpfr-gmp.h +++ b/mpfr-gmp.h @@ -92,7 +92,13 @@ extern "C" { #define SHRT_HIGHBIT SHRT_MIN /* MP_LIMB macros */ -#define MPN_ZERO(dst, n) memset((dst), 0, (n)*BYTES_PER_MP_LIMB) +#define MPN_ZERO(dst, n) \ + do \ + { \ + if (n) \ + memset((dst), 0, (n)*BYTES_PER_MP_LIMB); \ + } \ + while (0) #define MPN_COPY_DECR(dst,src,n) memmove((dst),(src),(n)*BYTES_PER_MP_LIMB) #define MPN_COPY_INCR(dst,src,n) memmove((dst),(src),(n)*BYTES_PER_MP_LIMB) #define MPN_COPY(dst,src,n) \ |