1 files changed, 6 insertions, 0 deletions
diff --git a/strreplace.c b/strreplace.c
index f32da11..e427d7f 100644
--- a/strreplace.c
+++ b/strreplace.c
@@ -12,6 +12,12 @@ extern inline char *libsimple_strreplace(char *, int, int);
 int
 main(void)
 {
+	char buf[100];
+
+	stpcpy(mempcpy(buf, "hello world", 12), "goodbye world");
+	assert(libsimple_strreplace(buf, 'o', 'x') == &buf[11]);
+	assert(!memcmp(buf, "hellx wxrld\0goodbye world", 26));
+
 	return 0;
 }