25 lines
1.1 KiB
C++
25 lines
1.1 KiB
C++
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// RUN: %clang_cc1 -fsyntax-only -verify %s
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int* j = false; // expected-warning{{initialization of pointer of type 'int *' to null from a constant boolean expression}}
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void foo(int* i, int *j=(false)) // expected-warning{{initialization of pointer of type 'int *' to null from a constant boolean expression}}
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{
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foo(false); // expected-warning{{initialization of pointer of type 'int *' to null from a constant boolean expression}}
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foo((int*)false); // no-warning: explicit cast
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foo(0); // no-warning: not a bool, even though its convertible to bool
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foo(false == true); // expected-warning{{initialization of pointer of type 'int *' to null from a constant boolean expression}}
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foo((42 + 24) < 32); // expected-warning{{initialization of pointer of type 'int *' to null from a constant boolean expression}}
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const bool kFlag = false;
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foo(kFlag); // expected-warning{{initialization of pointer of type 'int *' to null from a constant boolean expression}}
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}
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char f(struct Undefined*);
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double f(...);
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// Ensure that when using false in metaprogramming machinery its conversion
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// isn't flagged.
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template <int N> struct S {};
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S<sizeof(f(false))> s;
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