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