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fixed qsort() for 0 elements

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eck 1990-08-28 14:03:24 +00:00
parent bc83231874
commit 4ab420fb0f
1 changed files with 2 additions and 0 deletions
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2
lang/cem/libcc.ansi/stdlib/qsort.c
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@ -15,6 +15,8 @@ void
qsort(void *base, size_t nel, size_t width, qsort(void *base, size_t nel, size_t width,
int (*compar)(const void *, const void *)) int (*compar)(const void *, const void *))
{ {
/* when nel is 0, the expression '(nel - 1) * width' is wrong */
if (!nel) return;
qcompar = (int (*)(const char *, const char *)) compar; qcompar = (int (*)(const char *, const char *)) compar;
qsort1(base, (char *)base + (nel - 1) * width, width); qsort1(base, (char *)base + (nel - 1) * width, width);
} }