Boost Exception

BOOST_ERROR_INFO

#include <boost/exception/info.hpp>

namespace
boost
    {
    typedef error_info<struct tag_throw_function,char const *> throw_function;
    typedef error_info<struct tag_throw_file,char const *> throw_file;
    typedef error_info<struct tag_throw_line,int> throw_line;

    #define BOOST_ERROR_INFO\
        ::boost::throw_function(BOOST_CURRENT_FUNCTION) <<\
        ::boost::throw_file(__FILE__) <<\
        ::boost::throw_line((int)__LINE__)
    }

This macro is designed to be used with operator<<() when throwing a boost::exception, to store information about the location of the throw statement. It can be chained with other error_infos in a single throw expression.

See also:

Boost Exception