mapnik/src/function_call.cpp
2021-01-05 14:39:07 +00:00

54 lines
1.9 KiB
C++

/*****************************************************************************
*
* This file is part of Mapnik (c++ mapping toolkit)
*
* Copyright (C) 2021 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
*
*****************************************************************************/
#include <mapnik/function_call.hpp>
namespace mapnik {
char const* unary_function_name(unary_function_impl const& fun)
{
if (fun.target<sin_impl>()) return "sin";
else if (fun.target<cos_impl>()) return "cos";
else if (fun.target<tan_impl>()) return "tan";
else if (fun.target<atan_impl>()) return "atan";
else if (fun.target<exp_impl>()) return "exp";
else if (fun.target<abs_impl>()) return "abs";
else if (fun.target<length_impl>()) return "length";
else return "unknown";
}
// binary functions
char const* binary_function_name(binary_function_impl const& fun)
{
value_type(*const* f_ptr)(value_type const&, value_type const&) =
fun.target<value_type(*)
(value_type const&, value_type const&)>();
if (f_ptr)
{
if (*f_ptr == min_impl) return "min";
else if(*f_ptr == max_impl) return "max";
else if(*f_ptr == pow_impl) return "pow";
}
return "unknown";
}
}