Don't sort if there's nothing to do (prevents array underflow, too).

(transplanted from 662a7e180c480ff7731493b688aee27e8e010887)
2012-06-07 10:21:43 -04:00 · 2012-06-07 10:21:43 -04:00 · fb149451b8
parent 26c1d991d4
commit fb149451b8
1 changed files with 2 additions and 1 deletions
--- a/physfs.c
+++ b/physfs.c
@ -261,7 +261,8 @@ void __PHYSFS_sort(void *entries, PHYSFS_uint32 max,
     * Quicksort w/ Bubblesort fallback algorithm inspired by code from here:
     *   http://www.cs.ubc.ca/spider/harrison/Java/sorting-demo.html
     */
-    __PHYSFS_quick_sort(entries, 0, max - 1, cmpfn, swapfn);
+    if (max > 0)
+        __PHYSFS_quick_sort(entries, 0, max - 1, cmpfn, swapfn);
 } /* __PHYSFS_sort */