Boost C++ Libraries

...one of the most highly regarded and expertly designed C++ library projects in the world. — Herb Sutter and Andrei Alexandrescu, C++ Coding Standards

exception/operator<<

Boost Exception

exception/operator<<

#include <boost/exception/info.hpp> 

namespace
boost
    {
    template 
    E const & operator<<( E const & x, error_info const & v );
    }

Requirements:

E must be boost::exception, or a type that derives (indirectly) from boost::exception.

Postcondition:

A copy of v is stored into x. If x already contains data of type error_info, that data is overwritten. Basic exception safety guarantee.

Returns:

x.

Throws:

std::bad_alloc, or any exception emitted by the T copy constructor.

See also: Boost Exception | boost/exception/info.hpp | Diagnostic Information | diagnostic_information | error_info | exception | exception::exception | Frequently Asked Questions | get_error_info | Integrating Boost Exception in Existing Exception Class Hierarchies | Motivation