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)

 

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)	(自 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)	(自 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)	(自 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)	(自 C++23 起)

将 basic_const_iterator 与另一个值进行比较。当左操作数不是 basic_const_iterator 时，会使用这些函数模板。

I 满足仅用于说明的概念 /*not-a-const-iterator*/ 当且仅当它不是 basic_const_iterator 的特化时。

这些函数对于普通的非限定或限定查找是不可见的，并且只有当 basic_const_iterator<Iter> 是参数的关联类时，才能通过实参依赖查找找到它们。

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

如果左操作数是 basic_const_iterator，则会使用成员比较函数。

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);
}