mapnik/test/unit/svg/util.hpp

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/*****************************************************************************
*
* This file is part of Mapnik (c++ mapping toolkit)
*
2017-05-05 11:02:01 +00:00
* Copyright (C) 2017 Artem Pavlenko
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
*****************************************************************************/
#ifndef TEST_UNIT_SVG_UTIL_HPP
#define TEST_UNIT_SVG_UTIL_HPP
#include <cmath>
namespace {
template <int N = 6>
struct vertex_equal
{
template <typename T>
bool operator() (T const& lhs, T const& rhs) const
{
static const double eps = 1.0 / std::pow(10,N);
return (std::fabs(std::get<0>(lhs) - std::get<0>(rhs)) < eps)
&& (std::fabs(std::get<1>(lhs) - std::get<1>(rhs)) < eps)
&& std::get<2>(lhs) == std::get<2>(rhs);
}
};
}
#endif // TEST_UNIT_SVG_UTIL_HPP