operator+,-(ranges::stride_view::iterator)
From cppreference.com
friend constexpr /*iterator*/ operator+( const /*iterator*/& i, difference_type n ) requires ranges::random_access_range<Base>; |
(1) | (since C++23) |
friend constexpr /*iterator*/ operator+( difference_type n, const /*iterator*/& i ) requires ranges::random_access_range<Base>; |
(2) | (since C++23) |
friend constexpr /*iterator*/ operator-( const /*iterator*/& i, difference_type n ) requires ranges::random_access_range<Base>; |
(3) | (since C++23) |
friend constexpr difference_type operator-( const /*iterator*/& x, const /*iterator*/& y ) requires std::sized_sentinel_for<ranges::iterator_t<Base>, ranges::iterator_t<Base>>; |
(4) | (since C++23) |
friend constexpr difference_type operator-( std::default_sentinel_t, const /*iterator*/& x ) requires std::sized_sentinel_for<ranges::sentinel_t<Base>, ranges::iterator_t<Base>>; |
(5) | (since C++23) |
friend constexpr difference_type operator-( const /*iterator*/& x, std::default_sentinel_t s ) requires std::sized_sentinel_for<ranges::sentinel_t<Base>, ranges::iterator_t<Base>>; |
(6) | (since C++23) |
Increments or decrements the iterator.
Let current_, end_, stride_, and missing_ be the data members of the iterator.
1,2) Equivalent to
auto r = i; r += n; return r;.3) Equivalent to
auto r = i; r -= n; return r;.4) Let
N be x.current_ - y.current_. Returns:
(N + x.missing_ - y.missing_) / x.stride_, ifBasemodelsforward_range.-/*div-ceil*/(-N, x.stride_), ifN < 0./*div-ceil*/(N, x.stride_)otherwise.
5) Equivalent to
return /*div-ceil*/(x.end_ - x.current_, x.stride_);.6) Equivalent to
return -(s - x);.These functions are not visible to ordinary unqualified or qualified lookup, and can only be found by argument-dependent lookup when stride_view::iterator<Const> is an associated class of the arguments.
Parameters
| x, y, i | - | the iterators |
| s | - | a sentinel |
Return value
1,2) An incremented iterator
3) A decremented iterator
4) A distance between given iterators
5,6) A distance between given iterator and sentinel
Example
| This section is incomplete Reason: no example |
See also
| advances or decrements the underlying iterator (public member function) |