Return to int32_minmax.inc CVS log

Up to [local] / src / usr.bin / ssh

Annotation of src/usr.bin/ssh/int32_minmax.inc, Revision 1.1

1.1     ! tobhe       1: /*  $OpenBSD: $ */
        !             2:
        !             3: /*
        !             4:  * Public Domain, Authors:
        !             5:  * - Daniel J. Bernstein
        !             6:  * - Chitchanok Chuengsatiansup
        !             7:  * - Tanja Lange
        !             8:  * - Christine van Vredendaal
        !             9:  */
        !            10:
        !            11: #define int32_MINMAX(a,b) \
        !            12: do { \
        !            13:   int64_t ab = (int64_t)b ^ (int64_t)a; \
        !            14:   int64_t c = (int64_t)b - (int64_t)a; \
        !            15:   c ^= ab & (c ^ b); \
        !            16:   c >>= 31; \
        !            17:   c &= ab; \
        !            18:   a ^= c; \
        !            19:   b ^= c; \
        !            20: } while(0)