101 lines
3.1 KiB
C++
101 lines
3.1 KiB
C++
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//---------------------------------------------------------------------------//
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// Copyright (c) 2013 Kyle Lutz <kyle.r.lutz@gmail.com>
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//
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// Distributed under the Boost Software License, Version 1.0
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// See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt
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//
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// See http://boostorg.github.com/compute for more information.
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//---------------------------------------------------------------------------//
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#ifndef BOOST_COMPUTE_FUNCTIONAL_OPERATORS_HPP
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#define BOOST_COMPUTE_FUNCTIONAL_OPERATORS_HPP
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#include <string>
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namespace boost {
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namespace compute {
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namespace detail {
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template<class Expr1, class Expr2, class Result>
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struct invoked_binary_operator
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{
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typedef Result result_type;
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invoked_binary_operator(const std::string &op,
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const Expr1 &arg1,
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const Expr2 &arg2)
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: m_op(op),
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m_expr1(arg1),
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m_expr2(arg2)
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{
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}
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std::string op() const
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{
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return m_op;
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}
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Expr1 arg1() const
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{
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return m_expr1;
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}
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Expr2 arg2() const
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{
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return m_expr2;
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}
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std::string m_op;
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Expr1 m_expr1;
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Expr2 m_expr2;
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};
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} // end detail namespace
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/// \internal_
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#define BOOST_COMPUTE_DECLARE_BINARY_OPERATOR(name, op, return_type, arg_type) \
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template<class arg_type> \
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class name : public function<return_type (arg_type, arg_type)> \
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{ \
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public: \
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name() : function<return_type (arg_type, arg_type)>(BOOST_PP_STRINGIZE(name)) { } \
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\
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template<class Arg1, class Arg2> \
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detail::invoked_binary_operator<Arg1, Arg2, T> \
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operator()(const Arg1 &x, const Arg2 &y) const \
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{ \
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return detail::invoked_binary_operator<Arg1, Arg2, T>(op, x, y); \
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} \
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};
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// arithmetic operations
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BOOST_COMPUTE_DECLARE_BINARY_OPERATOR(plus, "+", T, T)
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BOOST_COMPUTE_DECLARE_BINARY_OPERATOR(minus, "-", T, T)
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BOOST_COMPUTE_DECLARE_BINARY_OPERATOR(multiplies, "*", T, T)
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BOOST_COMPUTE_DECLARE_BINARY_OPERATOR(divides, "/", T, T)
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BOOST_COMPUTE_DECLARE_BINARY_OPERATOR(modulus, "%", T, T)
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// comparisons
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BOOST_COMPUTE_DECLARE_BINARY_OPERATOR(equal_to, "==", T, T)
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BOOST_COMPUTE_DECLARE_BINARY_OPERATOR(not_equal_to, "!=", T, T)
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BOOST_COMPUTE_DECLARE_BINARY_OPERATOR(greater, ">", T, T)
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BOOST_COMPUTE_DECLARE_BINARY_OPERATOR(less, "<", T, T)
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BOOST_COMPUTE_DECLARE_BINARY_OPERATOR(greater_equal, ">=", T, T)
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BOOST_COMPUTE_DECLARE_BINARY_OPERATOR(less_equal, "<=", T, T)
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// logical operators
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BOOST_COMPUTE_DECLARE_BINARY_OPERATOR(logical_and, "&&", T, T)
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BOOST_COMPUTE_DECLARE_BINARY_OPERATOR(logical_or, "||", T, T)
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// bitwise operations
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BOOST_COMPUTE_DECLARE_BINARY_OPERATOR(bit_and, "&", T, T)
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BOOST_COMPUTE_DECLARE_BINARY_OPERATOR(bit_or, "|", T, T)
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BOOST_COMPUTE_DECLARE_BINARY_OPERATOR(bit_xor, "^", T, T)
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BOOST_COMPUTE_DECLARE_BINARY_OPERATOR(shift_left, "<<", T, T)
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BOOST_COMPUTE_DECLARE_BINARY_OPERATOR(shift_right, ">>", T, T)
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} // end compute namespace
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} // end boost namespace
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#endif // BOOST_COMPUTE_FUNCTIONAL_OPERATORS_HPP
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