Runtime/LogicError and throwers

src/lib_json/json_value.cpp

@@ -152,17 +152,46 @@ static inline void releaseStringValue(char* value) { free(value); }
 
 namespace Json {
 
+class JSON_API Exception : public std::exception {
+public:
+  Exception(std::string const& msg);
+  virtual ~Exception() throw();
+  virtual char const* what() const throw();
+protected:
+  std::string const& msg_;
+};
+class JSON_API RuntimeError : public Exception {
+public:
+  RuntimeError(std::string const& msg);
+};
+class JSON_API LogicError : public Exception {
+public:
+  LogicError(std::string const& msg);
+};
+
 Exception::Exception(std::string const& msg)
   : msg_(msg)
-  , future_use_(NULL)
-{
-}
+{}
 Exception::~Exception() throw()
 {}
 char const* Exception::what() const throw()
 {
   return msg_.c_str();
 }
+RuntimeError::RuntimeError(std::string const& msg)
+  : Exception(msg)
+{}
+LogicError::LogicError(std::string const& msg)
+  : Exception(msg)
+{}
+void throwRuntimeError(std::string const& msg)
+{
+  throw RuntimeError(msg);
+}
+void throwLogicError(std::string const& msg)
+{
+  throw LogicError(msg);
+}
 
 // //////////////////////////////////////////////////////////////////
 // //////////////////////////////////////////////////////////////////