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authorMattias Andrée <maandree@kth.se>2024-08-18 09:58:23 +0200
committerMattias Andrée <maandree@kth.se>2024-08-18 09:58:23 +0200
commita69f0f613687edf6c1f1ee83b462f77e8ea3c9a9 (patch)
treed976683461a0f427d2f1ef79a8732a048dd0c67b /bindex_r.c
parentMerge tag '1.3' into since (diff)
parentUpdate VERSION_MINOR (diff)
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Merge tag '1.4' into since
Version 1.4
Diffstat (limited to '')
-rw-r--r--bindex_r.c39
1 files changed, 39 insertions, 0 deletions
diff --git a/bindex_r.c b/bindex_r.c
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+++ b/bindex_r.c
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+/* See LICENSE file for copyright and license details. */
+#include "common.h"
+#ifndef TEST
+
+
+ssize_t
+libsimple_bindex_r(const void *key, const void *base, size_t nel, size_t width,
+ int (*compar)(const void *, const void *, void *), void *arg)
+{
+ size_t index = 0, offset = 0;
+ int cmp;
+
+ while (nel) {
+ index = offset + nel / 2;
+ cmp = (*compar)(key, (const char *)base + width * index, arg);
+ if (cmp < 0) {
+ nel /= 2;
+ } else if (cmp > 0) {
+ offset = index += 1;
+ nel -= nel / 2 + 1;
+ } else {
+ return (ssize_t)index;
+ }
+ }
+
+ return ~(ssize_t)index;
+}
+
+
+#else
+#include "test.h"
+
+int
+main(void) /* TODO add test */
+{
+ return 0;
+}
+
+#endif