Runtime/LogicError and throwers
diff --git a/include/json/value.h b/include/json/value.h
index 1cd6291..b590825 100644
--- a/include/json/value.h
+++ b/include/json/value.h
@@ -35,15 +35,20 @@
/** Base class for all exceptions we throw.
*/
-class Exception : public std::exception {
-public:
- Exception(std::string const& msg);
- virtual ~Exception() throw();
- virtual char const* what() const throw();
-protected:
- std::string const& msg_;
- void* future_use_;
-};
+class JSON_API Exception;
+/** Exceptions which the user cannot easily avoid.
+ *
+ * E.g. out-of-memory, stack-overflow, malicious input
+ */
+class JSON_API RuntimeError;
+/** Exceptions throw by JSON_ASSERT/JSON_FAIL macros.
+ *
+ * These are precondition-violations (user bugs) and internal errors (our bugs).
+ */
+class JSON_API LogicError;
+
+JSON_API void throwRuntimeError(std::string const& msg);
+JSON_API void throwLogicError(std::string const& msg);
/** \brief Type of the value held by a Value object.
*/