derek.holloway
7502bf64a4
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25 lines
1.6 KiB
C++
25 lines
1.6 KiB
C++
// RUN: %clang_cc1 -fsyntax-only -Wstring-conversion -verify %s
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// Warn on cases where a string literal is converted into a bool.
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// An exception is made for this in logical and operators.
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void assert(bool condition);
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void test0() {
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bool b0 = "hi"; // expected-warning{{implicit conversion turns string literal into bool: 'const char[3]' to 'bool'}}
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b0 = ""; // expected-warning{{implicit conversion turns string literal into bool: 'const char[1]' to 'bool'}}
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b0 = 0 || ""; // expected-warning{{implicit conversion turns string literal into bool: 'const char[1]' to 'bool'}}
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b0 = "" || 0; // expected-warning{{implicit conversion turns string literal into bool: 'const char[1]' to 'bool'}}
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b0 = 0 && "";
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b0 = "" && 0;
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assert("error"); // expected-warning{{implicit conversion turns string literal into bool: 'const char[6]' to 'bool'}}
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assert(0 || "error"); // expected-warning{{implicit conversion turns string literal into bool: 'const char[6]' to 'bool'}}
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assert("error" || 0); // expected-warning{{implicit conversion turns string literal into bool: 'const char[6]' to 'bool'}}
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assert(0 && "error");
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assert("error" && 0);
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while("hi") {} // expected-warning{{implicit conversion turns string literal into bool: 'const char[3]' to 'bool'}}
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do {} while("hi"); // expected-warning{{implicit conversion turns string literal into bool: 'const char[3]' to 'bool'}}
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for (;"hi";); // expected-warning{{implicit conversion turns string literal into bool: 'const char[3]' to 'bool'}}
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if("hi") {} // expected-warning{{implicit conversion turns string literal into bool: 'const char[3]' to 'bool'}}
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}
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