operator-(ranges::slide_view::sentinel)

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< cpp‎ | ranges‎ | slide view‎ | sentinel
 
 
Ranges library
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(C++23)
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(until C++23)(C++23)


 
 
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 difference between the iterator and the sentinel.

Example