std:: sorted_unique_t, std:: sorted_unique
From cppreference.com
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Defined in header
<flat_map>
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Defined in header
<flat_set>
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struct
sorted_unique_t
{
explicit
sorted_unique_t
(
)
=
default
;
}
;
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(1) | (since C++23) |
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inline
constexpr
sorted_unique_t sorted_unique
{
}
;
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(2) | (since C++23) |
1)
The type
std::sorted_unique_t
can be used in the function's (including constructor's) parameter list to match the intended tag.
2)
The corresponding
std::sorted_unique
instance of
(1)
is a disambiguation tag that can be passed to the functions of
std::flat_map
and
std::flat_set
to indicate that the input range or container is sorted (with respect to the comparator used in flat container adaptor) and all elements of such container or range are unique.
Standard library
The following standard library container adaptors use (1,2) as disambiguation tags:
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(C++23)
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adapts two containers to provide a collection of key-value pairs, sorted by unique keys
(class template) |
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(C++23)
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adapts a container to provide a collection of unique keys, sorted by keys
(class template) |
See also
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indicates that elements of a range are sorted (uniqueness is not required)
(tag) |
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(C++23)
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from-range construction tag
(tag) |
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in-place construction tag
(tag) |