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// 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 that requires a non-null argument}}
f2(0, 0); // expected-warning{{null passed to a callee that requires a non-null argument}}
}
}
namespace test3 {
__attribute__((nonnull(1))) void f(void *ptr);
void g() {
f(static_cast<char*>((void*)0)); // expected-warning{{null passed}}
f(static_cast<char*>(0)); // expected-warning{{null passed}}
}
}
namespace test4 {
struct X {
bool operator!=(const void *) const __attribute__((nonnull(2)));
};
bool operator==(const X&, const void *) __attribute__((nonnull(2)));
void test(const X& x) {
(void)(x == 0); // expected-warning{{null passed}}
(void)(x != 0); // expected-warning{{null passed}}
}
}
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