source:
doc/papers/OOPSLA17/evaluation/cpp-pair.hpp
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1 | #pragma once |
2 | #include <utility> |
3 | |
4 | template<typename R, typename S> struct pair { |
5 | R first; |
6 | S second; |
7 | |
8 | pair() = default; |
9 | pair( R&& x, S&& y ) : first( std::move(x) ), second( std::move(y) ) {} |
10 | |
11 | bool operator< (const pair<R, S>& o) const { |
12 | return first < o.first || ( first == o.first && second < o.second ); |
13 | } |
14 | |
15 | bool operator<= (const pair<R, S>& o) const { |
16 | return first < o.first || ( first == o.first && second <= o.second ); |
17 | } |
18 | |
19 | bool operator== (const pair<R, S>& o) const { return first == o.first && second == o.second; } |
20 | |
21 | bool operator!= (const pair<R, S>& o) const { return first != o.first || second != o.second; } |
22 | |
23 | bool operator> (const pair<R, S>& o) const { |
24 | return first > o.first || ( first == o.first && second > o.second ); |
25 | } |
26 | |
27 | bool operator>= (const pair<R, S>& o) const { |
28 | return first > o.first || ( first == o.first && second >= o.second ); |
29 | } |
30 | }; |
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