diff options
Diffstat (limited to 'lib/libc/quad/moddi3.c')
| -rw-r--r-- | lib/libc/quad/moddi3.c | 22 |
1 files changed, 11 insertions, 11 deletions
diff --git a/lib/libc/quad/moddi3.c b/lib/libc/quad/moddi3.c index f166feca3b7..0d4517766ab 100644 --- a/lib/libc/quad/moddi3.c +++ b/lib/libc/quad/moddi3.c @@ -32,7 +32,7 @@ */ #if defined(LIBC_SCCS) && !defined(lint) -static char rcsid[] = "$OpenBSD: moddi3.c,v 1.3 2003/06/02 20:18:36 millert Exp $"; +static char rcsid[] = "$OpenBSD: moddi3.c,v 1.4 2004/04/27 17:46:46 otto Exp $"; #endif /* LIBC_SCCS and not lint */ #include "quad.h" @@ -40,24 +40,24 @@ static char rcsid[] = "$OpenBSD: moddi3.c,v 1.3 2003/06/02 20:18:36 millert Exp /* * Return remainder after dividing two signed quads. * - * XXX - * If -1/2 should produce -1 on this machine, this code is wrong. + * XXX we assume a % b < 0 iff a < 0, but this is actually machine-dependent. */ quad_t __moddi3(a, b) quad_t a, b; { u_quad_t ua, ub, ur; - int neg; + int neg = 0; + + ua = a; + ub = b; if (a < 0) - ua = -(u_quad_t)a, neg = 1; - else - ua = a, neg = 0; + ua = -ua, neg ^= 1; if (b < 0) - ub = -(u_quad_t)b, neg ^= 1; - else - ub = b; + ub = -ub; (void)__qdivrem(ua, ub, &ur); - return (neg ? -ur : ur); + if (neg) + ur = -ur; + return (ur); } |