#define prefix_ inline
///////////////////////////////cti.p///////////////////////////////////////
-template <class Arg>
-prefix_ senf::Exception & senf::Exception::operator<<(Arg const & arg)
+template <class Exc, class Arg>
+prefix_ typename boost::enable_if< boost::is_convertible<Exc*,senf::ExceptionMixin*>, Exc & >::type
+senf::operator<<(Exc const & exc, Arg const & arg)
{
- message_ += boost::lexical_cast<std::string>(arg);
- return *this;
+ const_cast<Exc &>(exc).append( boost::lexical_cast<std::string>(arg) );
+ return const_cast<Exc &>(exc);
+}
+
+///////////////////////////////////////////////////////////////////////////
+// senf::WrapExcecption<BaseException>
+
+template <class BaseException>
+prefix_ senf::WrapException<BaseException>::WrapException(BaseException const & base)
+ : ExceptionMixin(base.what()), BaseException(base)
+{}
+
+template <class BaseException>
+prefix_ senf::WrapException<BaseException>::~WrapException()
+ throw()
+{}
+
+template <class BaseException>
+prefix_ char const * senf::WrapException<BaseException>::what()
+ const throw()
+{
+ return message().c_str();
}
/////////////////////////////cti.e///////////////////////////////////////