| // RUN: %clang_cc1 -fsyntax-only -verify %s -Wzero-as-null-pointer-constant -std=c++11 |
| |
| struct S {}; |
| |
| int (S::*mp0) = nullptr; |
| void (*fp0)() = nullptr; |
| void* p0 = nullptr; |
| |
| int (S::*mp1) = 0; // expected-warning{{zero as null pointer constant}} |
| void (*fp1)() = 0; // expected-warning{{zero as null pointer constant}} |
| void* p1 = 0; // expected-warning{{zero as null pointer constant}} |
| |
| // NULL is an integer constant expression, so warn on it too: |
| void* p2 = __null; // expected-warning{{zero as null pointer constant}} |
| void (*fp2)() = __null; // expected-warning{{zero as null pointer constant}} |
| int (S::*mp2) = __null; // expected-warning{{zero as null pointer constant}} |
| |
| void f0(void* v = 0); // expected-warning{{zero as null pointer constant}} |
| void f1(void* v); |
| |
| void g() { |
| f1(0); // expected-warning{{zero as null pointer constant}} |
| } |
| |
| // Warn on these too. Matches gcc and arguably makes sense. |
| void* pp = (decltype(nullptr))0; // expected-warning{{zero as null pointer constant}} |
| void* pp2 = static_cast<decltype(nullptr)>(0); // expected-warning{{zero as null pointer constant}} |