std::ranges::zip_view<Views...>::iterator<Const>::operator++,--,+=,-=

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< cpp‎ | ranges‎ | zip view‎ | iterator
 
 
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constexpr /*iterator*/& operator++();
(1) (C++23 起)
constexpr void operator++( int );
(2) (C++23 起)
constexpr /*iterator*/ operator++( int )
    requires /*all-forward*/<Const, Views...>;
(3) (C++23 起)
constexpr /*iterator*/& operator--()
    requires /*all-bidirectional*/<Const, Views...>;
(4) (C++23 起)
constexpr /*iterator*/ operator--( int )
    requires /*all-bidirectional*/<Const, Views...>;
(5) (C++23 起)
constexpr /*iterator*/& operator+=( difference_type n )
    requires /*all-random-access*/<Const, Views...>;
(6) (C++23 起)
constexpr /*iterator*/& operator-=( difference_type n )
    requires /*all-random-access*/<Const, Views...>;
(7) (C++23 起)

增加或减少底层元组式对象 current_ 中的每个底层迭代器 is_...

1) 等价于 /*tuple-for-each*/([](auto& i) { ++i; }, current_); return *this;
2) 等价于 ++*this;
3) 等价于 auto tmp = *this; ++*this; return tmp;
4) 等价于 /*tuple-for-each*/([](auto& i) { --i; }, current_); return *this;
5) 等价于 auto tmp = *this; --*this; return tmp;
6) 等价于 /*tuple-for-each*/([&]<class I>(I& i) { i += iter_difference_t<I>(x); }, current_); return *this;
7) 等价于 /*tuple-for-each*/([&]<class I>(I& i) { i -= iter_difference_t<I>(x); }, current_); return *this;

参数

n - 相对于当前位置的位置

返回值

1,4,6,7) *this
2) (无)
3,5) *this 在改动前做出的副本

示例