forked from OSchip/llvm-project
55 lines
1.6 KiB
C++
55 lines
1.6 KiB
C++
// RUN: %clang_cc1 -fsyntax-only -verify %s
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struct S {
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S(const char *) __attribute__((nonnull(2)));
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static void f(const char*, const char*) __attribute__((nonnull(1)));
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// GCC has a hidden 'this' argument in member functions, so the middle
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// argument is the one that must not be null.
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void g(const char*, const char*, const char*) __attribute__((nonnull(3)));
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void h(const char*) __attribute__((nonnull(1))); // \
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expected-error{{invalid for the implicit this argument}}
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};
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void test() {
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S s(0); // expected-warning{{null passed}}
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s.f(0, ""); // expected-warning{{null passed}}
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s.f("", 0);
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s.g("", 0, ""); // expected-warning{{null passed}}
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s.g(0, "", 0);
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}
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namespace rdar8769025 {
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__attribute__((nonnull)) void f0(int *&p);
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__attribute__((nonnull)) void f1(int * const &p);
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__attribute__((nonnull(2))) void f2(int i, int * const &p);
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void test_f1() {
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f1(0); // expected-warning{{null passed to a callee that requires a non-null argument}}
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f2(0, 0); // expected-warning{{null passed to a callee that requires a non-null argument}}
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}
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}
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namespace test3 {
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__attribute__((nonnull(1))) void f(void *ptr);
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void g() {
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f(static_cast<char*>((void*)0)); // expected-warning{{null passed}}
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f(static_cast<char*>(0)); // expected-warning{{null passed}}
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}
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}
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namespace test4 {
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struct X {
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bool operator!=(const void *) const __attribute__((nonnull(2)));
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};
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bool operator==(const X&, const void *) __attribute__((nonnull(2)));
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void test(const X& x) {
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(void)(x == 0); // expected-warning{{null passed}}
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(void)(x != 0); // expected-warning{{null passed}}
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}
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}
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