1 // RUN: %clang_cc1 -fsyntax-only -verify %s
2 struct S {
3 S(const char *) __attribute__((nonnull(2)));
4
5 static void f(const char*, const char*) __attribute__((nonnull(1)));
6
7 // GCC has a hidden 'this' argument in member functions, so the middle
8 // argument is the one that must not be null.
9 void g(const char*, const char*, const char*) __attribute__((nonnull(3)));
10
11 void h(const char*) __attribute__((nonnull(1))); // \
12 expected-error{{invalid for the implicit this argument}}
13 };
14
test()15 void test() {
16 S s(0); // expected-warning{{null passed}}
17
18 s.f(0, ""); // expected-warning{{null passed}}
19 s.f("", 0);
20 s.g("", 0, ""); // expected-warning{{null passed}}
21 s.g(0, "", 0);
22 }
23
24 namespace rdar8769025 {
25 __attribute__((nonnull)) void f0(int *&p);
26 __attribute__((nonnull)) void f1(int * const &p);
27 __attribute__((nonnull(2))) void f2(int i, int * const &p);
28
test_f1()29 void test_f1() {
30 f1(0); // expected-warning{{null passed to a callee which requires a non-null argument}}
31 f2(0, 0); // expected-warning{{null passed to a callee which requires a non-null argument}}
32 }
33 }
34