1 files changed, 15 insertions, 0 deletions
diff --git a/test/Analysis/cstring-ranges.c b/test/Analysis/cstring-ranges.c
new file mode 100644
index 0000000000000..4fcd7eaa8bee2
--- /dev/null
+++ b/test/Analysis/cstring-ranges.c
@@ -0,0 +1,15 @@
+// RUN: %clang_analyze_cc1 -analyzer-checker=unix.cstring -analyzer-output=text %s 2>&1 | FileCheck %s
+
+// This test verifies argument source range highlighting.
+// Otherwise we've no idea which of the arguments is null.
+
+char *strcpy(char *, const char *);
+
+void foo() {
+  char *a = 0, *b = 0;
+  strcpy(a, b);
+}
+
+// CHECK: warning: Null pointer argument in call to string copy function
+// CHECK-NEXT: strcpy(a, b);
+// CHECK-NEXT: ^      ~