forked from OSchip/llvm-project
55 lines
1.6 KiB
C++
55 lines
1.6 KiB
C++
// 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}}
|
|
}
|
|
}
|
|
|
|
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}}
|
|
}
|
|
}
|