istream::operator bool() is explicit in C++11, use git diff

src/RageUtil.cpp

@@ -1753,12 +1753,12 @@ void MakeLower( wchar_t *p, size_t iLen )
 
 bool operator>>(const RString& lhs, int& rhs)
 {
-	return istringstream(lhs) >> rhs;
+	return !!(istringstream(lhs) >> rhs);
 }
 
 bool operator>>(const RString& lhs, float& rhs)
 {
-	return istringstream(lhs) >> rhs;
+	return !!(istringstream(lhs) >> rhs);
 }
 
 int StringToInt( const RString &sString )