std::ranges:: range_reference_t, std::ranges:: range_const_reference_t, std::ranges:: range_rvalue_reference_t, std::ranges:: range_common_reference_t
From cppreference.com
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Defined in header
<ranges>
|
||
|
template
<
ranges::
range
R
>
using range_reference_t = std:: iter_reference_t < ranges:: iterator_t < R >> ; |
(1) | (since C++20) |
|
template
<
ranges::
range
R
>
using
range_const_reference_t
=
|
(2) | (since C++23) |
|
template
<
ranges::
range
R
>
using
range_rvalue_reference_t
=
|
(3) | (since C++20) |
|
template
<
ranges::
range
R
>
using
range_common_reference_t
=
|
(4) | (since C++20) |
1)
Used to obtain the reference type of the iterator type of range type
R
.
2)
Used to obtain the constant reference type of the iterator type of range type
R
.
3)
Used to obtain the rvalue reference type of the iterator type of range type
R
.
4)
Used to obtain the common reference type of the iterator type of range type
R
.
Template parameters
| R | - |
a
range
type or a
sized_range
type
|
Defect reports
The following behavior-changing defect reports were applied retroactively to previously published C++ standards.
| DR | Applied to | Behavior as published | Correct behavior |
|---|---|---|---|
| LWG 3860 | C++20 |
range_common_reference_t
was missing
|
added |
See also
|
(C++20)
(C++20)
(C++23)
(C++20)
(C++20)
(C++20)
|
computes the associated types of an iterator
(alias template) |
|
(C++20)
(C++23)
(C++20)
(C++23)
|
obtains iterator and sentinel types of a range
(alias template) |
|
(C++20)
(C++20)
(C++20)
|
obtains size, difference, and value types of a range
(alias template) |