Nevar pievienot vairāk kā 25 tēmas
Tēmai ir jāsākas ar burtu vai ciparu, tā var saturēt domu zīmes ('-') un var būt līdz 35 simboliem gara.
85 rindas
1.8 KiB
85 rindas
1.8 KiB
#pragma once
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#include "gp/algorithm/move.hpp"
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namespace gp{
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template<typename T1, typename T2>
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struct pair{
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T1 first;
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T2 second;
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constexpr pair()
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: first()
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, second()
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{}
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constexpr pair(const T1& a, const T2& b)
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: first(a)
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, second(b)
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{}
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constexpr pair(pair&& v)
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: first(gp::move(v.first))
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, second(gp::move(v.second))
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{}
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template<typename U1, typename U2>
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constexpr pair(U1&& a, U2&& b)
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: first(gp::forward<U1>(a))
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, second(gp::forward<U2>(b))
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{}
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template<typename U1, typename U2>
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constexpr pair(pair<U1, U2>&& v)
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: first(gp::move(v.first))
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, second(gp::move(v.second))
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{}
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constexpr pair& operator=(pair&& v)
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{
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first = gp::move(v.first);
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second = gp::move(v.second);
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return *this;
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}
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};
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template<typename F, typename S>
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constexpr bool operator==(const pair<F, S>& lhs, const pair<F, S>& rhs) {
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return lhs.first == rhs.first and lhs.second == rhs.second;
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}
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template<typename F, typename S>
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constexpr bool operator!=(const pair<F, S>& lhs, const pair<F, S>& rhs) {
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return lhs.first != rhs.first or lhs.second != rhs.second;
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}
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template<typename F, typename S>
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constexpr bool operator<=(const pair<F, S>& lhs, const pair<F, S>& rhs) {
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if(lhs.first > rhs.first) {
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return false;
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} else if(lhs.first == rhs.first) {
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return lhs.second <= rhs.second;
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}
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return true;
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}
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template<typename F, typename S>
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constexpr bool operator>=(const pair<F, S>& lhs, const pair<F, S>& rhs) {
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if(lhs.first < rhs.first) {
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return false;
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} else if(lhs.first == rhs.first) {
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return lhs.second >= rhs.second;
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}
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return true;
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}
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template<typename F, typename S>
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constexpr bool operator<(const pair<F, S>& lhs, const pair<F, S>& rhs) {
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return !(lhs >= rhs);
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}
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template<typename F, typename S>
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constexpr bool operator>(const pair<F, S>& lhs, const pair<F, S>& rhs) {
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return !(lhs <= rhs);
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}
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}
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