operator<,<=,>,>=(std::basic_const_iterator<Iter>)

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std::basic_const_iterator

成员函数

basic_const_iterator::basic_const_iterator

basic_const_iterator::base

basic_const_iterator::operator*basic_const_iterator::operator->

basic_const_iterator::operator[]

basic_const_iterator::operator++basic_const_iterator::operator+=basic_const_iterator::operator--basic_const_iterator::operator-=

basic_const_iterator::operator==basic_const_iterator::operator<basic_const_iterator::operator<=basic_const_iterator::operator>basic_const_iterator::operator>=basic_const_iterator::operator<=>

basic_const_iterator::operator constant-iterator

非成员函数

operator<operator<=operator>operator>= (C++23)(C++23)(C++23)(C++23)

operator+ (C++23)

operator- (C++23)

iter_move(std::basic_const_iterator) (C++23)

辅助类

common_type<std::basic_const_iterator> (C++23)

 

<tbody> </tbody>

template< /*not-a-const-iterator*/ I > friend constexpr bool operator<( const I& x, const basic_const_iterator& y ) requires std::random_access_iterator<Iter> && std::totally_ordered_with<Iter, I>;	(1)	(C++23 起)
template< /*not-a-const-iterator*/ I > friend constexpr bool operator>( const I& x, const basic_const_iterator& y ) requires std::random_access_iterator<Iter> && std::totally_ordered_with<Iter, I>;	(2)	(C++23 起)
template< /*not-a-const-iterator*/ I > friend constexpr bool operator<=( const I& x, const basic_const_iterator& y ) requires std::random_access_iterator<Iter> && std::totally_ordered_with<Iter, I>;	(3)	(C++23 起)
template< /*not-a-const-iterator*/ I > friend constexpr bool operator>=( const I& x, const basic_const_iterator& y ) requires std::random_access_iterator<Iter> && std::totally_ordered_with<Iter, I>;	(4)	(C++23 起)

比较 basic_const_iterator 和另一个值。当左操作数不是 basic_const_iterator 时使用这些函数模板。

当且仅当 I 不是 basic_const_iterator 的特化时，它满足仅用于阐释的概念 /*not-a-const-iterator*/。

这些函数对常规的无限定或有限定查找不可见，而只能在 basic_const_iterator<Iter> 为实参的关联类时由实参依赖查找找到。

参数

x, y

-

要比较的迭代器

返回值

1) x < y.base()

2) x > y.base()

3) x <= y.base()

4) x >= y.base()

注解

如果左操作数为 basic_const_iterator，则使用成员比较函数。

示例

运行此代码

#include <iterator>

int main()
{
    static int arr[1];
    static constexpr std::basic_const_iterator<int*> it = std::end(arr);
    static_assert(arr < it);
}

参阅