| 1 | // RUN: %clang_cc1 -fsyntax-only -Wstring-conversion -verify %s |
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| 2 | |
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| 3 | // Warn on cases where a string literal is converted into a bool. |
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| 4 | // An exception is made for this in logical and operators. |
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| 5 | void assert(bool condition); |
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| 6 | void test0() { |
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| 7 | bool b0 = "hi"; // expected-warning{{implicit conversion turns string literal into bool: 'const char [3]' to 'bool'}} |
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| 8 | b0 = ""; // expected-warning{{implicit conversion turns string literal into bool: 'const char [1]' to 'bool'}} |
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| 9 | b0 = 0 || ""; // expected-warning{{implicit conversion turns string literal into bool: 'const char [1]' to 'bool'}} |
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| 10 | b0 = "" || 0; // expected-warning{{implicit conversion turns string literal into bool: 'const char [1]' to 'bool'}} |
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| 11 | b0 = 0 && ""; |
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| 12 | b0 = "" && 0; |
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| 13 | assert("error"); // expected-warning{{implicit conversion turns string literal into bool: 'const char [6]' to 'bool'}} |
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| 14 | assert(0 || "error"); // expected-warning{{implicit conversion turns string literal into bool: 'const char [6]' to 'bool'}} |
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| 15 | assert("error" || 0); // expected-warning{{implicit conversion turns string literal into bool: 'const char [6]' to 'bool'}} |
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| 16 | assert(0 && "error"); |
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| 17 | assert("error" && 0); |
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| 18 | |
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| 19 | while("hi") {} // expected-warning{{implicit conversion turns string literal into bool: 'const char [3]' to 'bool'}} |
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| 20 | do {} while("hi"); // expected-warning{{implicit conversion turns string literal into bool: 'const char [3]' to 'bool'}} |
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| 21 | for (;"hi";); // expected-warning{{implicit conversion turns string literal into bool: 'const char [3]' to 'bool'}} |
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| 22 | if("hi") {} // expected-warning{{implicit conversion turns string literal into bool: 'const char [3]' to 'bool'}} |
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| 23 | } |
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| 24 | |
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| 25 | |
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