1 files changed, 33 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.c-torture/execute/builtins/strstr.c b/gcc/testsuite/gcc.c-torture/execute/builtins/strstr.c
new file mode 100644
index 000000000..ae503aa43
--- /dev/null
+++ b/gcc/testsuite/gcc.c-torture/execute/builtins/strstr.c
@@ -0,0 +1,33 @@
+/* Copyright (C) 2000  Free Software Foundation.
+
+   Ensure all expected transformations of builtin strstr occur and
+   perform correctly.
+
+   Written by Kaveh R. Ghazi, 11/6/2000.  */
+
+extern void abort(void);
+extern char *strstr (const char *, const char *);
+
+void
+main_test (void)
+{
+  const char *const foo = "hello world";
+  
+  if (strstr (foo, "") != foo)
+    abort();
+  if (strstr (foo + 4, "") != foo + 4)
+    abort();
+  if (strstr (foo, "h") != foo)
+    abort();
+  if (strstr (foo, "w") != foo + 6)
+    abort();
+  if (strstr (foo + 6, "o") != foo + 7)
+    abort();
+  if (strstr (foo + 1, "world") != foo + 6)
+    abort();
+
+  /* Test at least one instance of the __builtin_ style.  We do this
+     to ensure that it works and that the prototype is correct.  */
+  if (__builtin_strstr (foo + 1, "world") != foo + 6)
+    abort();
+}