operator+,- (ranges::stride_view:: iterator )

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C++
Ranges library
Range adaptors
std::ranges::stride_view
Member functions
Deduction guides
Iterator
Member functions
Non-member functions
operator+ (stride_view:: iterator )
operator- (stride_view:: iterator )
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_ , if Base models forward_range .
  • - /*div-ceil*/ ( - N, x. stride_ ) , if N < 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)
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