operator-(ranges::transform_view::sentinel)
From cppreference.com
< cpp | ranges | transform view | sentinel
C++
Feature test macros (C++20)
Concepts library (C++20)
Metaprogramming library (C++11)
Ranges library (C++20)
Filesystem library (C++17)
Concurrency support library (C++11)
Execution control library (C++26)
Ranges library
(C++23)(C++23)
(C++26)(C++26)
(C++23)(C++23)
(C++26)(C++26)
(C++26)(C++26)
(C++23)(C++23)
(C++23)(C++23)
(C++23)(C++23)
(C++23)(C++23)
(C++23)(C++23)
(C++23)
(C++23)(C++23)
(C++23)
(C++23)(C++23)
(C++23)(C++23)
(C++23)(C++23)
(C++23)(C++23)
(C++23)(C++23)
std::ranges::transform_view
(C++26)
operator-(transform_view::iterator,transform_view::sentinel)
friend constexpr ranges::range_difference_t <Base>
(1)
(since C++20)
operator-( const /*iterator*/<Const>& x, const /*sentinel*/& y )
requires std::sized_sentinel_for <ranges::sentinel_t <Base>,
friend constexpr ranges::range_difference_t <Base>
(2)
(since C++20)
operator-( const /*sentinel*/& y, const /*iterator*/<Const>& x )
requires std::sized_sentinel_for <ranges::sentinel_t <Base>,
Computes the distance between the underlying iterator of x and the underlying sentinel of y.
These functions are not visible to ordinary unqualified or qualified lookup, and can only be found by argument-dependent lookup when transform_view::sentinel<Const> is an associated class of the arguments.
[edit] Parameters
x
-
an iterator
y
-
a sentinel
[edit] Return value
Let current_ denote the underlying iterator, end_ denote the underlying sentinel.
1) x.current_ - y.end_
2) y.end_ - x.current_