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-rw-r--r--compat/qsort.c62
1 files changed, 0 insertions, 62 deletions
diff --git a/compat/qsort.c b/compat/qsort.c
deleted file mode 100644
index 7d071afb70..0000000000
--- a/compat/qsort.c
+++ /dev/null
@@ -1,62 +0,0 @@
-#include "../git-compat-util.h"
-
-/*
- * A merge sort implementation, simplified from the qsort implementation
- * by Mike Haertel, which is a part of the GNU C Library.
- */
-
-static void msort_with_tmp(void *b, size_t n, size_t s,
- int (*cmp)(const void *, const void *),
- char *t)
-{
- char *tmp;
- char *b1, *b2;
- size_t n1, n2;
-
- if (n <= 1)
- return;
-
- n1 = n / 2;
- n2 = n - n1;
- b1 = b;
- b2 = (char *)b + (n1 * s);
-
- msort_with_tmp(b1, n1, s, cmp, t);
- msort_with_tmp(b2, n2, s, cmp, t);
-
- tmp = t;
-
- while (n1 > 0 && n2 > 0) {
- if (cmp(b1, b2) <= 0) {
- memcpy(tmp, b1, s);
- tmp += s;
- b1 += s;
- --n1;
- } else {
- memcpy(tmp, b2, s);
- tmp += s;
- b2 += s;
- --n2;
- }
- }
- if (n1 > 0)
- memcpy(tmp, b1, n1 * s);
- memcpy(b, t, (n - n2) * s);
-}
-
-void git_qsort(void *b, size_t n, size_t s,
- int (*cmp)(const void *, const void *))
-{
- const size_t size = st_mult(n, s);
- char buf[1024];
-
- if (size < sizeof(buf)) {
- /* The temporary array fits on the small on-stack buffer. */
- msort_with_tmp(b, n, s, cmp, buf);
- } else {
- /* It's somewhat large, so malloc it. */
- char *tmp = xmalloc(size);
- msort_with_tmp(b, n, s, cmp, tmp);
- free(tmp);
- }
-}