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150
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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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236
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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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150
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11 b0 = 0 && "";
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12 b0 = "" && 0;
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236
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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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150
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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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236
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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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150
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23 }
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24
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