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

 

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std::basic_const_iterator

成員函式

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

非成員函式

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)

輔助類

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)	(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)

將 basic_const_iterator 與另一個值進行比較。當左運算元不是 basic_const_iterator 時，使用這些函式模板。

I 滿足僅用於說明的概念 /*not-a-const-iterator*/ 當且僅當它不是 basic_const_iterator 的特化。

這些函式對普通的非限定或限定查詢不可見，只能透過實參依賴查詢在 basic_const_iterator<Iter> 是實參的關聯類時找到。

引數

x, y

-

要比較的迭代器

返回值

1) x < y.base()

2) x > y.base()

3) x <= y.base()

4) x >= y.base()

註解

如果左運算元是 basic_const_iterator，則使用成員比較函式。

示例

執行此程式碼

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