1 files changed, 37 insertions, 0 deletions
diff --git a/strreqlen.c b/strreqlen.c
new file mode 100644
index 0000000..5c7cece
--- /dev/null
+++ b/strreqlen.c
@@ -0,0 +1,37 @@
+/* See LICENSE file for copyright and license details. */
+#include "common.h"
+#ifndef TEST
+
+
+extern inline size_t libsimple_strreqlen(const char *, const char *);
+
+
+#else
+#include "test.h"
+
+int
+main(void)
+{
+	size_t i, j;
+	char a[] = "abcdefgh", b[] = "abcdefgh";
+
+	assert(libsimple_strreqlen("", "") == 0);
+	assert(libsimple_strreqlen("x", "") == 0);
+	assert(libsimple_strreqlen("x", "y") == 0);
+	assert(libsimple_strreqlen("", "y") == 0);
+	for (i = 0; i <= 8; i++) {
+		for (j = 0; j <= 8; j++) {
+			assert(libsimple_strreqlen(&a[i], &b[j]) == 8 - (i > j ? i : j));
+			a[i] = b[j] = '\0';
+			assert(libsimple_strreqlen(a, b) == (i == j ? i : 0));
+			a[i] = "abcdefgh"[i];
+			b[j] = "abcdefgh"[j];
+		}
+	}
+	assert(libsimple_strreqlen("abc", "ABC") == 0);
+	assert(libsimple_strreqlen("123", "123") == 3);
+
+	return 0;
+}
+
+#endif