From 41d3081c4ac0a79a4ad292957ead84f8477eaa55 Mon Sep 17 00:00:00 2001
From: Sertonix
Date: Sat, 11 Oct 2025 18:25:20 +0200
Subject: Add `swab`

Make the overlap check pedantic only since some software seems to rely
on glibc working when src and dest are the same.
---
 tests/test_swab_overwrite_over.c | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)
 create mode 100644 tests/test_swab_overwrite_over.c

(limited to 'tests/test_swab_overwrite_over.c')

diff --git a/tests/test_swab_overwrite_over.c b/tests/test_swab_overwrite_over.c
new file mode 100644
index 0000000..997f6d1
--- /dev/null
+++ b/tests/test_swab_overwrite_over.c
@@ -0,0 +1,17 @@
+#define _XOPEN_SOURCE
+
+#include "common.h"
+
+#include <unistd.h>
+
+int main(int argc, char** argv) {
+  char buffer[9] = {'A', 'A', 'A', 'A', 'B', 'B', 'B', 'B', '\0'};
+  puts(buffer);
+
+  CHK_FAIL_START
+  swab(buffer+1, buffer, 5);
+  CHK_FAIL_END
+
+  puts(buffer);
+  return ret;
+}
-- 
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