Containers/pair.hpp at master · ahkecha/Containers · GitHub

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/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   pair.hpp                                           :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: ahkecha <ahkecha@student.42.fr>            +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2022/12/24 14:48:10 by ahkecha           #+#    #+#             */
/*   Updated: 2023/01/31 15:55:07 by ahkecha          ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#ifndef __PAIR_H__
#define __PAIR_H__
#include <utility>

namespace ft {
    template <
        class T1,
        class T2>
    struct pair
    {
        typedef T1 first_type;
        typedef T2 second_type;

        T1 first;
        T2 second;

        pair();
        template <class U, class V>
        pair(const pair<U, V> &pr);
        pair(const first_type &a, const second_type &b);
        pair &operator=(const pair &pr);
    };

    template <class T1, class T2>
    pair<T1, T2>::pair() { }
    template <class T1, class T2>
    template <class U, class V>
    pair<T1, T2>::pair(const pair<U, V> &pr)
        : first(pr.first)
        , second(pr.second)
    {
    }
    template <class T1, class T2>
    pair<T1, T2>::pair(const first_type &a, const second_type &b)
        : first(a)
        , second(b)
    {
    }
    template <class T1, class T2>
    pair<T1, T2> &pair<T1, T2>::operator=(const pair &pr)
    {
        first = pr.first;
        second = pr.second;
        return (*this);
    }
    template <class T1, class T2>
    pair<T1, T2> make_pair(T1 x, T2 y) { return (pair<T1, T2>(x, y)); }
    template <class T1, class T2>
    inline bool
    operator==(const pair<T1, T2>& __x, const pair<T1, T2>& __y)
    {
        return (__x.first == __y.first and __x.second == __y.second);
    }
    template <class T1, class T2>
    inline bool
    operator!=(const pair<T1,T2>& __x, const pair<T1,T2>& __y)
    {
        return !(__x == __y);
    }

    template <class T1, class T2>
    inline bool
    operator< (const pair<T1,T2>& __x, const pair<T1,T2>& __y)
    {
        return __x.first < __y.first || (!(__y.first < __x.first) && __x.second < __y.second);
    }

    template <class T1, class T2>
    inline bool
    operator> (const pair<T1,T2>& __x, const pair<T1,T2>& __y)
    {
        return __y < __x;
    }

    template <class T1, class T2>
    inline bool
    operator>=(const pair<T1,T2>& __x, const pair<T1,T2>& __y)
    {
        return !(__x < __y);
    }

    template <class T1, class T2>
    inline bool
    operator<=(const pair<T1,T2>& __x, const pair<T1,T2>& __y)
    {
        return !(__y < __x);
    }
}

#endif // __PAIR_H__