36 lines
875 B
C++
36 lines
875 B
C++
//Copyright (c) 2006-2009 Emil Dotchevski and Reverge Studios, Inc.
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//Distributed under the Boost Software License, Version 1.0. (See accompanying
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//file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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//This example shows how to add data to boost::exception objects at the
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//point of the throw, and how to retrieve that data at the point of the catch.
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#include <boost/exception/all.hpp>
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#include <iostream>
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typedef boost::error_info<struct tag_my_info,int> my_info; //(1)
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struct my_error: virtual boost::exception, virtual std::exception { }; //(2)
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void
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f()
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{
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throw my_error() << my_info(42); //(3)
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}
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void
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g()
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{
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try
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{
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f();
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}
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catch(
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my_error & x )
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{
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if( int const * mi=boost::get_error_info<my_info>(x) )
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std::cerr << "My info: " << *mi;
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}
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}
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