projects / ceph.git / blame
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|---|---|---|
| 7c673cae FG |
1 | //---------------------------------------------------------------------------// |
| 2 | // Copyright (c) 2013 Kyle Lutz <kyle.r.lutz@gmail.com> | |
| 3 | // | |
| 4 | // Distributed under the Boost Software License, Version 1.0 | |
| 5 | // See accompanying file LICENSE_1_0.txt or copy at | |
| 6 | // http://www.boost.org/LICENSE_1_0.txt | |
| 7 | // | |
| 8 | // See http://boostorg.github.com/compute for more information. | |
| 9 | //---------------------------------------------------------------------------// | |
| 10 | ||
| 11 | #ifndef BOOST_COMPUTE_FUNCTIONAL_OPERATORS_HPP | |
| 12 | #define BOOST_COMPUTE_FUNCTIONAL_OPERATORS_HPP | |
| 13 | ||
| 14 | #include <string> | |
| 15 | ||
| 16 | namespace boost { | |
| 17 | namespace compute { | |
| 18 | namespace detail { | |
| 19 | ||
| 20 | template<class Expr1, class Expr2, class Result> | |
| 21 | struct invoked_binary_operator | |
| 22 | { | |
| 23 | typedef Result result_type; | |
| 24 | ||
| 25 | invoked_binary_operator(const std::string &op, | |
| 26 | const Expr1 &arg1, | |
| 27 | const Expr2 &arg2) | |
| 28 | : m_op(op), | |
| 29 | m_expr1(arg1), | |
| 30 | m_expr2(arg2) | |
| 31 | { | |
| 32 | } | |
| 33 | ||
| 34 | std::string op() const | |
| 35 | { | |
| 36 | return m_op; | |
| 37 | } | |
| 38 | ||
| 39 | Expr1 arg1() const | |
| 40 | { | |
| 41 | return m_expr1; | |
| 42 | } | |
| 43 | ||
| 44 | Expr2 arg2() const | |
| 45 | { | |
| 46 | return m_expr2; | |
| 47 | } | |
| 48 | ||
| 49 | std::string m_op; | |
| 50 | Expr1 m_expr1; | |
| 51 | Expr2 m_expr2; | |
| 52 | }; | |
| 53 | ||
| 54 | } // end detail namespace | |
| 55 | ||
| 56 | /// \internal_ | |
| 57 | #define BOOST_COMPUTE_DECLARE_BINARY_OPERATOR(name, op, return_type, arg_type) \ | |
| 58 | template<class arg_type> \ | |
| 59 | class name : public function<return_type (arg_type, arg_type)> \ | |
| 60 | { \ | |
| 61 | public: \ | |
| 62 | name() : function<return_type (arg_type, arg_type)>(BOOST_PP_STRINGIZE(name)) { } \ | |
| 63 | \ | |
| 64 | template<class Arg1, class Arg2> \ | |
| 65 | detail::invoked_binary_operator<Arg1, Arg2, T> \ | |
| 66 | operator()(const Arg1 &x, const Arg2 &y) const \ | |
| 67 | { \ | |
| 68 | return detail::invoked_binary_operator<Arg1, Arg2, T>(op, x, y); \ | |
| 69 | } \ | |
| 70 | }; | |
| 71 | ||
| 72 | // arithmetic operations | |
| 73 | BOOST_COMPUTE_DECLARE_BINARY_OPERATOR(plus, "+", T, T) | |
| 74 | BOOST_COMPUTE_DECLARE_BINARY_OPERATOR(minus, "-", T, T) | |
| 75 | BOOST_COMPUTE_DECLARE_BINARY_OPERATOR(multiplies, "*", T, T) | |
| 76 | BOOST_COMPUTE_DECLARE_BINARY_OPERATOR(divides, "/", T, T) | |
| 77 | BOOST_COMPUTE_DECLARE_BINARY_OPERATOR(modulus, "%", T, T) | |
| 78 | ||
| 79 | // comparisons | |
| 80 | BOOST_COMPUTE_DECLARE_BINARY_OPERATOR(equal_to, "==", T, T) | |
| 81 | BOOST_COMPUTE_DECLARE_BINARY_OPERATOR(not_equal_to, "!=", T, T) | |
| 82 | BOOST_COMPUTE_DECLARE_BINARY_OPERATOR(greater, ">", T, T) | |
| 83 | BOOST_COMPUTE_DECLARE_BINARY_OPERATOR(less, "<", T, T) | |
| 84 | BOOST_COMPUTE_DECLARE_BINARY_OPERATOR(greater_equal, ">=", T, T) | |
| 85 | BOOST_COMPUTE_DECLARE_BINARY_OPERATOR(less_equal, "<=", T, T) | |
| 86 | ||
| 87 | // logical operators | |
| 88 | BOOST_COMPUTE_DECLARE_BINARY_OPERATOR(logical_and, "&&", T, T) | |
| 89 | BOOST_COMPUTE_DECLARE_BINARY_OPERATOR(logical_or, "||", T, T) | |
| 90 | ||
| 91 | // bitwise operations | |
| 92 | BOOST_COMPUTE_DECLARE_BINARY_OPERATOR(bit_and, "&", T, T) | |
| 93 | BOOST_COMPUTE_DECLARE_BINARY_OPERATOR(bit_or, "|", T, T) | |
| 94 | BOOST_COMPUTE_DECLARE_BINARY_OPERATOR(bit_xor, "^", T, T) | |
| 95 | BOOST_COMPUTE_DECLARE_BINARY_OPERATOR(shift_left, "<<", T, T) | |
| 96 | BOOST_COMPUTE_DECLARE_BINARY_OPERATOR(shift_right, ">>", T, T) | |
| 97 | ||
| 98 | } // end compute namespace | |
| 99 | } // end boost namespace | |
| 100 | #endif // BOOST_COMPUTE_FUNCTIONAL_OPERATORS_HPP |