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251 lines
12 KiB
C++
251 lines
12 KiB
C++
#ifndef BOOST_PROTO17_OPERATORS_HPP_INCLUDED
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#define BOOST_PROTO17_OPERATORS_HPP_INCLUDED
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namespace boost::proto17 {
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#define BOOST_PROTO17_NOEXCEPT_DECLTYPE_RETURN(expr) \
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noexcept(noexcept(expr)) -> decltype(expr) { return expr; }
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namespace adl_detail {
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#define BOOST_PROTO17_UNARY_OPERATOR(op, op_name) \
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template <typename T> \
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constexpr auto eval_ ## op_name (T && t) BOOST_PROTO17_NOEXCEPT_DECLTYPE_RETURN( \
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op static_cast<T &&>(t) \
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) \
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struct eval_ ## op_name ## _fn \
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{ \
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template <typename T> \
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constexpr auto operator() (T && t) const BOOST_PROTO17_NOEXCEPT_DECLTYPE_RETURN( \
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eval_ ## op_name(static_cast<T &&>(t)) \
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) \
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};
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BOOST_PROTO17_UNARY_OPERATOR(+, unary_plus) // +
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BOOST_PROTO17_UNARY_OPERATOR(-, negate) // -
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BOOST_PROTO17_UNARY_OPERATOR(*, dereference) // *
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BOOST_PROTO17_UNARY_OPERATOR(~, complement) // ~
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BOOST_PROTO17_UNARY_OPERATOR(&, address_of) // &
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BOOST_PROTO17_UNARY_OPERATOR(!, logical_not) // !
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BOOST_PROTO17_UNARY_OPERATOR(++, pre_inc) // ++
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BOOST_PROTO17_UNARY_OPERATOR(--, pre_dec) // --
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template <typename T>
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constexpr auto eval_post_inc (T && t) BOOST_PROTO17_NOEXCEPT_DECLTYPE_RETURN(
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static_cast<T &&>(t) ++
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)
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struct eval_post_inc_fn
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{
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template <typename T>
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constexpr auto operator() (T && t) const BOOST_PROTO17_NOEXCEPT_DECLTYPE_RETURN(
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eval_post_inc(static_cast<T &&>(t))
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)
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};
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template <typename T>
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constexpr auto eval_post_dec (T && t) BOOST_PROTO17_NOEXCEPT_DECLTYPE_RETURN(
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static_cast<T &&>(t) --
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)
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struct eval_post_dec_fn
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{
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template <typename T>
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constexpr auto operator() (T && t) const BOOST_PROTO17_NOEXCEPT_DECLTYPE_RETURN(
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eval_post_dec(static_cast<T &&>(t))
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)
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};
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#undef BOOST_PROTO17_UNARY_OPERATOR
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#define BOOST_PROTO17_BINARY_OPERATOR(op, op_name) \
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template <typename T, typename U> \
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constexpr auto eval_ ## op_name (T && t, U && u) BOOST_PROTO17_NOEXCEPT_DECLTYPE_RETURN( \
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static_cast<T &&>(t) op static_cast<U &&>(u) \
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) \
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struct eval_ ## op_name ## _fn \
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{ \
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template <typename T, typename U> \
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constexpr auto operator() (T && t, U && u) const BOOST_PROTO17_NOEXCEPT_DECLTYPE_RETURN( \
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eval_ ## op_name(static_cast<T &&>(t), static_cast<U &&>(u)) \
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) \
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};
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BOOST_PROTO17_BINARY_OPERATOR(<<, shift_left) // <<
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BOOST_PROTO17_BINARY_OPERATOR(>>, shift_right) // >>
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BOOST_PROTO17_BINARY_OPERATOR(*, multiplies) // *
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BOOST_PROTO17_BINARY_OPERATOR(/, divides) // /
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BOOST_PROTO17_BINARY_OPERATOR(%, modulus) // %
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BOOST_PROTO17_BINARY_OPERATOR(+, plus) // +
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BOOST_PROTO17_BINARY_OPERATOR(-, minus) // -
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BOOST_PROTO17_BINARY_OPERATOR(<, less) // <
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BOOST_PROTO17_BINARY_OPERATOR(>, greater) // >
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BOOST_PROTO17_BINARY_OPERATOR(<=, less_equal) // <=
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BOOST_PROTO17_BINARY_OPERATOR(>=, greater_equal) // >=
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BOOST_PROTO17_BINARY_OPERATOR(==, equal_to) // ==
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BOOST_PROTO17_BINARY_OPERATOR(!=, not_equal_to) // !=
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BOOST_PROTO17_BINARY_OPERATOR(||, logical_or) // ||
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BOOST_PROTO17_BINARY_OPERATOR(&&, logical_and) // &&
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BOOST_PROTO17_BINARY_OPERATOR(&, bitwise_and) // &
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BOOST_PROTO17_BINARY_OPERATOR(|, bitwise_or) // |
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BOOST_PROTO17_BINARY_OPERATOR(^, bitwise_xor) // ^
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template <typename T, typename U>
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constexpr auto eval_comma (T && t, U && u) BOOST_PROTO17_NOEXCEPT_DECLTYPE_RETURN(
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(static_cast<T &&>(t) , static_cast<U &&>(u))
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)
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struct eval_comma_fn
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{
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template <typename T, typename U>
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constexpr auto operator() (T && t, U && u) const BOOST_PROTO17_NOEXCEPT_DECLTYPE_RETURN(
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eval_comma(static_cast<T &&>(t), static_cast<U &&>(u))
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)
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};
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BOOST_PROTO17_BINARY_OPERATOR(->*, mem_ptr) // ->*
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BOOST_PROTO17_BINARY_OPERATOR(=, assign) // =
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BOOST_PROTO17_BINARY_OPERATOR(<<=, shift_left_assign) // <<=
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BOOST_PROTO17_BINARY_OPERATOR(>>=, shift_right_assign) // >>=
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BOOST_PROTO17_BINARY_OPERATOR(*=, multiplies_assign) // *=
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BOOST_PROTO17_BINARY_OPERATOR(/=, divides_assign) // /=
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BOOST_PROTO17_BINARY_OPERATOR(%=, modulus_assign) // %=
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BOOST_PROTO17_BINARY_OPERATOR(+=, plus_assign) // +=
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BOOST_PROTO17_BINARY_OPERATOR(-=, minus_assign) // -=
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BOOST_PROTO17_BINARY_OPERATOR(&=, bitwise_and_assign) // &=
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BOOST_PROTO17_BINARY_OPERATOR(|=, bitwise_or_assign) // |=
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BOOST_PROTO17_BINARY_OPERATOR(^=, bitwise_xor_assign) // ^=
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template <typename T, typename U>
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constexpr auto eval_subscript (T && t, U && u) BOOST_PROTO17_NOEXCEPT_DECLTYPE_RETURN(
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static_cast<T &&>(t)[static_cast<U &&>(u)]
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)
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struct eval_subscript_fn
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{
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template <typename T, typename U>
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constexpr auto operator() (T && t, U && u) const BOOST_PROTO17_NOEXCEPT_DECLTYPE_RETURN(
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eval_subscript(static_cast<T &&>(t), static_cast<U &&>(u))
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)
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};
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#undef BOOST_PROTO17_BINARY_OPERATOR
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template <typename F, typename ...T>
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constexpr auto eval_call (F && f, T && ...t) BOOST_PROTO17_NOEXCEPT_DECLTYPE_RETURN(
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static_cast<F &&>(f)(static_cast<T &&>(t)...)
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)
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struct eval_call_fn
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{
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template <typename F, typename ...T>
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constexpr auto operator() (F && f, T && ...t) const BOOST_PROTO17_NOEXCEPT_DECLTYPE_RETURN(
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eval_call(static_cast<F &&>(f), static_cast<T &&>(t)...)
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)
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};
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}
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#undef BOOST_PROTO17_NOEXCEPT_DECLTYPE_RETURN
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#define BOOST_PROTO17_USING_OPERATOR_FN(op_name) using adl_detail::eval_ ## op_name ## _fn;
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BOOST_PROTO17_USING_OPERATOR_FN(unary_plus) // +
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BOOST_PROTO17_USING_OPERATOR_FN(negate) // -
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BOOST_PROTO17_USING_OPERATOR_FN(dereference) // *
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BOOST_PROTO17_USING_OPERATOR_FN(complement) // ~
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BOOST_PROTO17_USING_OPERATOR_FN(address_of) // &
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BOOST_PROTO17_USING_OPERATOR_FN(logical_not) // !
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BOOST_PROTO17_USING_OPERATOR_FN(pre_inc) // ++
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BOOST_PROTO17_USING_OPERATOR_FN(pre_dec) // --
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BOOST_PROTO17_USING_OPERATOR_FN(post_inc) // ++(int)
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BOOST_PROTO17_USING_OPERATOR_FN(post_dec) // --(int)
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BOOST_PROTO17_USING_OPERATOR_FN(shift_left) // <<
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BOOST_PROTO17_USING_OPERATOR_FN(shift_right) // >>
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BOOST_PROTO17_USING_OPERATOR_FN(multiplies) // *
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BOOST_PROTO17_USING_OPERATOR_FN(divides) // /
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BOOST_PROTO17_USING_OPERATOR_FN(modulus) // %
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BOOST_PROTO17_USING_OPERATOR_FN(plus) // +
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BOOST_PROTO17_USING_OPERATOR_FN(minus) // -
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BOOST_PROTO17_USING_OPERATOR_FN(less) // <
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BOOST_PROTO17_USING_OPERATOR_FN(greater) // >
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BOOST_PROTO17_USING_OPERATOR_FN(less_equal) // <=
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BOOST_PROTO17_USING_OPERATOR_FN(greater_equal) // >=
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BOOST_PROTO17_USING_OPERATOR_FN(equal_to) // ==
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BOOST_PROTO17_USING_OPERATOR_FN(not_equal_to) // !=
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BOOST_PROTO17_USING_OPERATOR_FN(logical_or) // ||
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BOOST_PROTO17_USING_OPERATOR_FN(logical_and) // &&
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BOOST_PROTO17_USING_OPERATOR_FN(bitwise_and) // &
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BOOST_PROTO17_USING_OPERATOR_FN(bitwise_or) // |
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BOOST_PROTO17_USING_OPERATOR_FN(bitwise_xor) // ^
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BOOST_PROTO17_USING_OPERATOR_FN(comma) // ,
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BOOST_PROTO17_USING_OPERATOR_FN(mem_ptr) // ->*
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BOOST_PROTO17_USING_OPERATOR_FN(assign) // =
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BOOST_PROTO17_USING_OPERATOR_FN(shift_left_assign) // <<=
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BOOST_PROTO17_USING_OPERATOR_FN(shift_right_assign) // >>=
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BOOST_PROTO17_USING_OPERATOR_FN(multiplies_assign) // *=
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BOOST_PROTO17_USING_OPERATOR_FN(divides_assign) // /=
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BOOST_PROTO17_USING_OPERATOR_FN(modulus_assign) // %=
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BOOST_PROTO17_USING_OPERATOR_FN(plus_assign) // +=
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BOOST_PROTO17_USING_OPERATOR_FN(minus_assign) // -=
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BOOST_PROTO17_USING_OPERATOR_FN(bitwise_and_assign) // &=
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BOOST_PROTO17_USING_OPERATOR_FN(bitwise_or_assign) // |=
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BOOST_PROTO17_USING_OPERATOR_FN(bitwise_xor_assign) // ^=
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BOOST_PROTO17_USING_OPERATOR_FN(subscript) // []
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BOOST_PROTO17_USING_OPERATOR_FN(call) // ()
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#undef BOOST_PROTO17_USING_OPERATOR_FN
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inline namespace function_objects {
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#define BOOST_PROTO17_DECLARE_OPERATOR_FN(op_name) \
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inline constexpr eval_ ## op_name ## _fn eval_ ## op_name{};
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BOOST_PROTO17_DECLARE_OPERATOR_FN(unary_plus) // +
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BOOST_PROTO17_DECLARE_OPERATOR_FN(negate) // -
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BOOST_PROTO17_DECLARE_OPERATOR_FN(dereference) // *
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BOOST_PROTO17_DECLARE_OPERATOR_FN(complement) // ~
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BOOST_PROTO17_DECLARE_OPERATOR_FN(address_of) // &
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BOOST_PROTO17_DECLARE_OPERATOR_FN(logical_not) // !
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BOOST_PROTO17_DECLARE_OPERATOR_FN(pre_inc) // ++
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BOOST_PROTO17_DECLARE_OPERATOR_FN(pre_dec) // --
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BOOST_PROTO17_DECLARE_OPERATOR_FN(post_inc) // ++(int)
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BOOST_PROTO17_DECLARE_OPERATOR_FN(post_dec) // --(int)
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BOOST_PROTO17_DECLARE_OPERATOR_FN(shift_left) // <<
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BOOST_PROTO17_DECLARE_OPERATOR_FN(shift_right) // >>
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BOOST_PROTO17_DECLARE_OPERATOR_FN(multiplies) // *
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BOOST_PROTO17_DECLARE_OPERATOR_FN(divides) // /
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BOOST_PROTO17_DECLARE_OPERATOR_FN(modulus) // %
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BOOST_PROTO17_DECLARE_OPERATOR_FN(plus) // +
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BOOST_PROTO17_DECLARE_OPERATOR_FN(minus) // -
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BOOST_PROTO17_DECLARE_OPERATOR_FN(less) // <
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BOOST_PROTO17_DECLARE_OPERATOR_FN(greater) // >
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BOOST_PROTO17_DECLARE_OPERATOR_FN(less_equal) // <=
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BOOST_PROTO17_DECLARE_OPERATOR_FN(greater_equal) // >=
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BOOST_PROTO17_DECLARE_OPERATOR_FN(equal_to) // ==
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BOOST_PROTO17_DECLARE_OPERATOR_FN(not_equal_to) // !=
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BOOST_PROTO17_DECLARE_OPERATOR_FN(logical_or) // ||
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BOOST_PROTO17_DECLARE_OPERATOR_FN(logical_and) // &&
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BOOST_PROTO17_DECLARE_OPERATOR_FN(bitwise_and) // &
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BOOST_PROTO17_DECLARE_OPERATOR_FN(bitwise_or) // |
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BOOST_PROTO17_DECLARE_OPERATOR_FN(bitwise_xor) // ^
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BOOST_PROTO17_DECLARE_OPERATOR_FN(comma) // ,
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BOOST_PROTO17_DECLARE_OPERATOR_FN(mem_ptr) // ->*
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BOOST_PROTO17_DECLARE_OPERATOR_FN(assign) // =
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BOOST_PROTO17_DECLARE_OPERATOR_FN(shift_left_assign) // <<=
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BOOST_PROTO17_DECLARE_OPERATOR_FN(shift_right_assign) // >>=
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BOOST_PROTO17_DECLARE_OPERATOR_FN(multiplies_assign) // *=
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BOOST_PROTO17_DECLARE_OPERATOR_FN(divides_assign) // /=
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BOOST_PROTO17_DECLARE_OPERATOR_FN(modulus_assign) // %=
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BOOST_PROTO17_DECLARE_OPERATOR_FN(plus_assign) // +=
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BOOST_PROTO17_DECLARE_OPERATOR_FN(minus_assign) // -=
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BOOST_PROTO17_DECLARE_OPERATOR_FN(bitwise_and_assign) // &=
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BOOST_PROTO17_DECLARE_OPERATOR_FN(bitwise_or_assign) // |=
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BOOST_PROTO17_DECLARE_OPERATOR_FN(bitwise_xor_assign) // ^=
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BOOST_PROTO17_DECLARE_OPERATOR_FN(subscript) // []
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BOOST_PROTO17_DECLARE_OPERATOR_FN(call) // ()
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#undef BOOST_PROTO17_DECLARE_OPERATOR_FN
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}
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}
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#endif
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