Move string literal to bool conversion into its own warning flag -Wstring-conversion.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@140574 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/SemaCXX/warn-string-conversion.cpp b/test/SemaCXX/warn-string-conversion.cpp
new file mode 100644
index 0000000..23960e4
--- /dev/null
+++ b/test/SemaCXX/warn-string-conversion.cpp
@@ -0,0 +1,18 @@
+// 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 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 && "";
+ assert("error"); // expected-warning{{implicit conversion turns string literal into bool: 'const char [6]' to 'bool'}}
+ assert(0 && "error");
+
+ 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'}}
+}
+