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57 lines
1.6 KiB
57 lines
1.6 KiB
6 years ago
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// -*- c++ -*-
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#pragma once
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namespace std {
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#define __binop(RESULT, NAME, OP) \
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template <class T> \
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struct NAME { \
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RESULT operator()(const T& x, const T& y) const { return x OP y; } \
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typedef T first_argument_type; \
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typedef T second_argument_type; \
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typedef RESULT result_type; \
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}
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#define __binop_T(NAME, OP) __binop(T, NAME, OP)
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#define __binop_bool(NAME, OP) __binop(bool, NAME, OP)
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// [C++11 20.8.4] Arithmetic operations
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__binop_T(plus, +);
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__binop_T(minus, -);
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__binop_T(multiplies, *);
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__binop_T(divides, /);
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__binop_T(modulus, %);
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template <class T>
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struct negate {
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T operator()(const T& x) const { return -x; }
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typedef T argument_type;
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typedef T result_type;
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};
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// [C++11 20.8.5] Comparisons
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__binop_bool(equal_to, ==);
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__binop_bool(not_equal_to, !=);
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__binop_bool(greater, >);
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__binop_bool(less, <);
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__binop_bool(greater_equal, >=);
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__binop_bool(less_equal, <=);
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// [C++11 20.8.6] Logical operations
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__binop_bool(logical_and, &&);
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__binop_bool(logical_or, ||);
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template <class T>
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struct logical_not {
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bool operator()(const T& x) const { return !x; }
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typedef T argument_type;
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typedef bool result_type;
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};
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// [C++11 20.8.7] Bitwise operations
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__binop_T(bit_and, &);
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__binop_T(bit_or, |);
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__binop_T(bit_xor, ^);
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#undef __binop_bool
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#undef __binop_T
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#undef __binop
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}
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