derive bad_lexical_cast from std::exception

wesnoth · May 18, 2014 · 2aebad5 · 2aebad5
1 parent 228b2af
commit 2aebad5
Showing 1 changed file with 8 additions and 1 deletion.
diff --git a/src/util.hpp b/src/util.hpp
@@ -73,7 +73,14 @@ inline double round_portable(double d) {
 	return (d >= 0.0) ? std::floor(d + 0.5) : std::ceil(d - 0.5);
 }
 
-struct bad_lexical_cast {};
+struct bad_lexical_cast : std::exception
+{
+public:
+	const char *what() const throw()
+	{
+		return "bad_lexical_cast";
+	}
+};
 
 template<typename To, typename From>
 To lexical_cast(From a)