diff options
Diffstat (limited to 'src/stdlib')
| -rw-r--r-- | src/stdlib/qsort.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/src/stdlib/qsort.c b/src/stdlib/qsort.c index 866af0ec..434d9350 100644 --- a/src/stdlib/qsort.c +++ b/src/stdlib/qsort.c @@ -155,12 +155,16 @@ void qsort(void *base, size_t nel, size_t width, cmpfun cmp) { size_t lp[12*sizeof(size_t)]; size_t i, size = width * nel; - unsigned char *head = base, - *high = head + size - width; + unsigned char *head, *high; size_t p[2] = {1, 0}; int pshift = 1; int trail; + if (!size) return; + + head = base; + high = head + size - width; + /* Precompute Leonardo numbers, scaled by element width */ for(lp[0]=lp[1]=width, i=2; (lp[i]=lp[i-2]+lp[i-1]+width) < size; i++); |