operator- (ranges::slide_view:: sentinel )

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Ranges library
Range adaptors
friend constexpr ranges:: range_difference_t < V >

operator - ( const /*iterator*/ < false > & x, const /*sentinel*/ & y )
requires std:: sized_sentinel_for < ranges:: sentinel_t < V > ,

ranges:: iterator_t < V >> ;
(1) (since C++23)
friend constexpr ranges:: range_difference_t < V >

operator - ( const /*sentinel*/ & y, const /*iterator*/ < false > & x )
requires std:: sized_sentinel_for < ranges:: sentinel_t < V > ,

ranges:: iterator_t < V >> ;
(2) (since C++23)

Computes the distance between the underlying iterator of x and the underlying sentinel of y .

Let last_ele_ denote the underlying iterator of x and end_ denote the underlying sentinel of y .

1) Equivalent to: return x. last_ele_ - y. end_ ; .
2) Equivalent to: return y. end_ - x. last_ele_ ; .

These functions are not visible to ordinary unqualified or qualified lookup , and can only be found by argument-dependent lookup when slide_view:: sentinel is an associated class of the arguments.

Parameters

x - an iterator
y - a sentinel

Return value

The distance between the iterator and the sentinel.

Example