Add the clang library to the repo (with some of my changes, too).

1 files changed, 33 insertions, 0 deletions

diff --git a/clang/test/SemaCXX/attr-nonnull.cpp b/clang/test/SemaCXX/attr-nonnull.cpp
new file mode 100644
index 0000000..09c054c
--- /dev/null
+++ b/clang/test/SemaCXX/attr-nonnull.cpp
@@ -0,0 +1,33 @@
+// RUN: %clang_cc1 -fsyntax-only -verify %s
+struct S {
+  S(const char *) __attribute__((nonnull(2)));
+
+  static void f(const char*, const char*) __attribute__((nonnull(1)));
+
+  // GCC has a hidden 'this' argument in member functions, so the middle
+  // argument is the one that must not be null.
+  void g(const char*, const char*, const char*) __attribute__((nonnull(3)));
+
+  void h(const char*) __attribute__((nonnull(1))); // \
+      expected-error{{invalid for the implicit this argument}}
+};
+
+void test() {
+  S s(0); // expected-warning{{null passed}}
+
+  s.f(0, ""); // expected-warning{{null passed}}
+  s.f("", 0);
+  s.g("", 0, ""); // expected-warning{{null passed}}
+  s.g(0, "", 0);
+}
+
+namespace rdar8769025 {
+  __attribute__((nonnull)) void f0(int *&p);
+  __attribute__((nonnull)) void f1(int * const &p);
+  __attribute__((nonnull(2))) void f2(int i, int * const &p);
+
+  void test_f1() {
+    f1(0); // expected-warning{{null passed to a callee which requires a non-null argument}}
+    f2(0, 0); // expected-warning{{null passed to a callee which requires a non-null argument}}
+  }
+}