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| author | Kevin Ryde <user42@zip.com.au> | 2001-06-17 00:50:39 +0200 |
|---|---|---|
| committer | Kevin Ryde <user42@zip.com.au> | 2001-06-17 00:50:39 +0200 |
| commit | aad349c801dc7b017324dcd44507a4c36040dca4 (patch) | |
| tree | 92ed72db1e44af7e4d9f6d291b859d06d30afd06 /gmp-h.in | |
| parent | 77d325583e1d61f4b46f547fca55d649ea3b6602 (diff) | |
| download | gmp-aad349c801dc7b017324dcd44507a4c36040dca4.tar.gz | |
More of:
* gmp-h.in, gmp-impl.h: Move MPN_CMP to gmp.h as __GMPN_CMP, leave an
MPN_CMP alias in gmp-impl.h.
* gmp-h.in (mpn_cmp): Add an inline version.
* mpn/generic/cmp.c: Use __GMP_FORCE_mpn_cmp to get code from gmp.h.
Retain the comment about why simply "x-y" is not used.
Diffstat (limited to 'gmp-h.in')
| -rw-r--r-- | gmp-h.in | 39 |
1 files changed, 20 insertions, 19 deletions
@@ -1373,25 +1373,26 @@ mpf_size (mpf_srcptr f) /* Compare {xp,size} and {yp,size}, setting "result" to positive, zero or negative. size==0 is allowed. On random data usually only one limb will need to be examined to get a result, so it's worth having it inline. */ -#define __GMPN_CMP(result, xp, yp, size) \ - do { \ - mp_size_t __i; \ - mp_limb_t __x, __y; \ - \ - /* ASSERT ((size) >= 0); */ \ - \ - (result) = 0; \ - __i = (size); \ - while (--__i >= 0) \ - { \ - __x = (xp)[__i]; \ - __y = (yp)[__i]; \ - if (__x != __y) \ - { \ - (result) = (__x > __y ? 1 : -1); \ - break; \ - } \ - } \ +#define __GMPN_CMP(result, xp, yp, size) \ + do { \ + mp_size_t __i; \ + mp_limb_t __x, __y; \ + \ + /* ASSERT ((size) >= 0); */ \ + \ + (result) = 0; \ + __i = (size); \ + while (--__i >= 0) \ + { \ + __x = (xp)[__i]; \ + __y = (yp)[__i]; \ + if (__x != __y) \ + { \ + /* Cannot use __x - __y, may overflow an "int" */ \ + (result) = (__x > __y ? 1 : -1); \ + break; \ + } \ + } \ } while (0) #if defined (__GMP_EXTERN_INLINE) || __GMP_FORCE_mpn_cmp |