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explicitly promote to double.

This commit is contained in:
christos 2019-04-04 19:25:38 +00:00
parent c60a534df3
commit 1ef6fb3def
1 changed files with 5 additions and 4 deletions
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9
lib/libc/time/difftime.c
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@ -1,4 +1,4 @@
/* $NetBSD: difftime.c,v 1.21 2019/01/27 04:38:38 dholland Exp $ */
/* $NetBSD: difftime.c,v 1.22 2019/04/04 19:25:38 christos Exp $ */
/* Return the difference between two timestamps. */
@ -12,7 +12,7 @@
#if 0
static char elsieid[] = "@(#)difftime.c 8.1";
#else
__RCSID("$NetBSD: difftime.c,v 1.21 2019/01/27 04:38:38 dholland Exp $");
__RCSID("$NetBSD: difftime.c,v 1.22 2019/04/04 19:25:38 christos Exp $");
#endif
#endif /* LIBC_SCCS and not lint */
@ -45,13 +45,14 @@ difftime(time_t time1, time_t time0)
** if the minuend is greater than or equal to the subtrahend.
*/
if (!TYPE_SIGNED(time_t))
return time0 <= time1 ? time1 - time0 : dminus(time0 - time1);
return time0 <= time1 ? time1 - time0 :
dminus((double)(time0 - time1));
/* Use uintmax_t if wide enough. */
/*CONSTCOND*/
if (sizeof (time_t) <= sizeof (uintmax_t)) {
uintmax_t t1 = time1, t0 = time0;
return time0 <= time1 ? t1 - t0 : dminus(t0 - t1);
return time0 <= time1 ? t1 - t0 : dminus((double)(t0 - t1));
}
/*