59 lines
1.6 KiB
C++
59 lines
1.6 KiB
C++
/*****************************************************************************
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*
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* This file is part of Mapnik (c++ mapping toolkit)
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*
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* Copyright (C) 2011 Artem Pavlenko
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*
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*****************************************************************************/
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#ifndef MAPNIK_VALUE_ERROR_HPP
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#define MAPNIK_VALUE_ERROR_HPP
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#include <exception>
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#include <string>
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namespace mapnik {
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class value_error : public std::exception
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{
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public:
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value_error() :
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what_() {}
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value_error( std::string const& what ) :
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what_( what )
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{
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}
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virtual ~value_error() throw() {};
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virtual const char * what() const throw()
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{
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return what_.c_str();
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}
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void append_context(std::string const& ctx) const
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{
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what_ += " " + ctx;
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}
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protected:
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mutable std::string what_;
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};
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}
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#endif // MAPNIK_VALUE_ERROR_HPP
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