1 files changed, 44 insertions, 0 deletions
diff --git a/strnreplace.c b/strnreplace.c
new file mode 100644
index 0000000..eb26ec9
--- /dev/null
+++ b/strnreplace.c
@@ -0,0 +1,44 @@
+/* See LICENSE file for copyright and license details. */
+#include "common.h"
+#ifndef TEST
+
+
+extern inline char *libsimple_strnreplace(char *, int, int, size_t);
+
+
+#else
+#include "test.h"
+
+int
+main(void)
+{
+	char buf[100];
+
+	stpcpy(mempcpy(buf, "hello world", 12), "goodbye world");
+	assert(libsimple_strnreplace(buf, 'o', 'x', SIZE_MAX) == &buf[11]);
+	assert(!memcmp(buf, "hellx wxrld\0goodbye world", 26));
+
+	stpcpy(mempcpy(buf, "hello world", 12), "goodbye world");
+	assert(libsimple_strnreplace(buf, 'o', 'x', 12) == &buf[11]);
+	assert(!memcmp(buf, "hellx wxrld\0goodbye world", 26));
+
+	stpcpy(mempcpy(buf, "hello world", 12), "goodbye world");
+	assert(libsimple_strnreplace(buf, 'o', 'x', 11) == &buf[11]);
+	assert(!memcmp(buf, "hellx wxrld\0goodbye world", 26));
+
+	stpcpy(mempcpy(buf, "hello world", 12), "goodbye world");
+	assert(libsimple_strnreplace(buf, 'o', 'x', 6) == &buf[6]);
+	assert(!memcmp(buf, "hellx world\0goodbye world", 26));
+
+	stpcpy(mempcpy(buf, "hello world", 12), "goodbye world");
+	assert(libsimple_strnreplace(buf, 'o', 'x', 5) == &buf[5]);
+	assert(!memcmp(buf, "hellx world\0goodbye world", 26));
+
+	stpcpy(mempcpy(buf, "hello world", 12), "goodbye world");
+	assert(libsimple_strnreplace(buf, 'o', 'x', 4) == &buf[4]);
+	assert(!memcmp(buf, "hello world\0goodbye world", 26));
+
+	return 0;
+}
+
+#endif