phunix/external/bsd/llvm/dist/clang/test/SemaCXX/warn-string-conversion.cpp
Lionel Sambuc 0a6a1f1d05 NetBSD re-synchronization of the source tree
This brings our tree to NetBSD 7.0, as found on -current on the
10-10-2015.

This updates:
 - LLVM to 3.6.1
 - GCC to GCC 5.1
 - Replace minix/commands/zdump with usr.bin/zdump
 - external/bsd/libelf has moved to /external/bsd/elftoolchain/
 - Import ctwm
 - Drop sprintf from libminc

Change-Id: I149836ac18e9326be9353958bab9b266efb056f0
2016-01-13 20:32:14 +01:00

25 lines
1.6 KiB
C++

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