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| author | Dmitry Stogov <dmitry@php.net> | 2008-07-24 13:46:48 +0000 |
|---|---|---|
| committer | Dmitry Stogov <dmitry@php.net> | 2008-07-24 13:46:48 +0000 |
| commit | 0c77613d776a9236da401b3553f48b6d5a4c72b3 (patch) | |
| tree | 8a6499e08bb139ae36d95f7d5ef9756c554fbf59 /Zend/zend_multiply.h | |
| parent | 33be49a588c305a7e3db66e2f1fe30d6543731b6 (diff) | |
| download | php-git-0c77613d776a9236da401b3553f48b6d5a4c72b3.tar.gz | |
Optimized ZEND_SIGNED_MULTIPLY_LONG() (Matt)
Diffstat (limited to 'Zend/zend_multiply.h')
| -rw-r--r-- | Zend/zend_multiply.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/Zend/zend_multiply.h b/Zend/zend_multiply.h index 0fe9eeba20..8f5f03d70e 100644 --- a/Zend/zend_multiply.h +++ b/Zend/zend_multiply.h @@ -31,6 +31,19 @@ else (lval) = __tmpvar; \ } while (0) +#elif SIZEOF_LONG == 4 && defined(HAVE_ZEND_LONG64) + +#define ZEND_SIGNED_MULTIPLY_LONG(a, b, lval, dval, usedval) do { \ + zend_long64 __result = (zend_long64) (a) * (zend_long64) (b); \ + if (__result > LONG_MAX || __result < LONG_MIN) { \ + (dval) = (double) __result; \ + (usedval) = 1; \ + } else { \ + (lval) = (long) __result; \ + (usedval) = 0; \ + } \ +} while (0) + #else #define ZEND_SIGNED_MULTIPLY_LONG(a, b, lval, dval, usedval) do { \ |