1*67e74705SXin Li // RUN: %clang_cc1 -fsyntax-only -Wstring-conversion -verify %s
2*67e74705SXin Li
3*67e74705SXin Li // Warn on cases where a string literal is converted into a bool.
4*67e74705SXin Li // An exception is made for this in logical and operators.
5*67e74705SXin Li void assert(bool condition);
test0()6*67e74705SXin Li void test0() {
7*67e74705SXin Li bool b0 = "hi"; // expected-warning{{implicit conversion turns string literal into bool: 'const char [3]' to 'bool'}}
8*67e74705SXin Li b0 = ""; // expected-warning{{implicit conversion turns string literal into bool: 'const char [1]' to 'bool'}}
9*67e74705SXin Li b0 = 0 || ""; // expected-warning{{implicit conversion turns string literal into bool: 'const char [1]' to 'bool'}}
10*67e74705SXin Li b0 = "" || 0; // expected-warning{{implicit conversion turns string literal into bool: 'const char [1]' to 'bool'}}
11*67e74705SXin Li b0 = 0 && "";
12*67e74705SXin Li b0 = "" && 0;
13*67e74705SXin Li assert("error"); // expected-warning{{implicit conversion turns string literal into bool: 'const char [6]' to 'bool'}}
14*67e74705SXin Li assert(0 || "error"); // expected-warning{{implicit conversion turns string literal into bool: 'const char [6]' to 'bool'}}
15*67e74705SXin Li assert("error" || 0); // expected-warning{{implicit conversion turns string literal into bool: 'const char [6]' to 'bool'}}
16*67e74705SXin Li assert(0 && "error");
17*67e74705SXin Li assert("error" && 0);
18*67e74705SXin Li
19*67e74705SXin Li while("hi") {} // expected-warning{{implicit conversion turns string literal into bool: 'const char [3]' to 'bool'}}
20*67e74705SXin Li do {} while("hi"); // expected-warning{{implicit conversion turns string literal into bool: 'const char [3]' to 'bool'}}
21*67e74705SXin Li for (;"hi";); // expected-warning{{implicit conversion turns string literal into bool: 'const char [3]' to 'bool'}}
22*67e74705SXin Li if("hi") {} // expected-warning{{implicit conversion turns string literal into bool: 'const char [3]' to 'bool'}}
23*67e74705SXin Li }
24*67e74705SXin Li
25