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deduction guides for std::flat_multimap

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std::flat_multimap
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定义于头文件 <flat_map>
template < class KeyContainer, class MappedContainer,

class Compare = std:: less < typename KeyContainer :: value_type > >
flat_multimap ( KeyContainer, MappedContainer, Compare = Compare ( ) )
- > flat_multimap < typename KeyContainer :: value_type ,
typename MappedContainer :: value_type ,

Compare, KeyContainer, MappedContainer > ;
(1) (自 C++23 起)
template < class KeyContainer, class MappedContainer, class Allocator >

flat_multimap ( KeyContainer, MappedContainer, Allocator )
- > flat_multimap < typename KeyContainer :: value_type ,
typename MappedContainer :: value_type ,
std:: less < typename KeyContainer :: value_type > ,

KeyContainer, MappedContainer > ;
(2) (自 C++23 起)
template < class KeyContainer, class MappedContainer,

class Compare, class Allocator >
flat_multimap ( KeyContainer, MappedContainer, Compare, Allocator )
- > flat_multimap < typename KeyContainer :: value_type ,
typename MappedContainer :: value_type ,

Compare, KeyContainer, MappedContainer > ;
(3) (自 C++23 起)
template < class KeyContainer, class MappedContainer,

class Compare = std:: less < typename KeyContainer :: value_type > >
flat_multimap ( std:: sorted_equivalent_t , KeyContainer, MappedContainer,
Compare = Compare ( ) )
- > flat_multimap < typename KeyContainer :: value_type ,
typename MappedContainer :: value_type ,

Compare, KeyContainer, MappedContainer > ;
(4) (自 C++23 起)
template < class KeyContainer, class MappedContainer, class Allocator >

flat_multimap ( std:: sorted_equivalent_t , KeyContainer, MappedContainer,
Allocator )
- > flat_multimap < typename KeyContainer :: value_type ,
typename MappedContainer :: value_type ,
std:: less < typename KeyContainer :: value_type > ,

KeyContainer, MappedContainer > ;
(5) (自 C++23 起)
template < class KeyContainer, class MappedContainer,

class Compare, class Allocator >
flat_multimap ( std:: sorted_equivalent_t , KeyContainer, MappedContainer,
Compare, Allocator )
- > flat_multimap < typename KeyContainer :: value_type ,
typename MappedContainer :: value_type ,

Compare, KeyContainer, MappedContainer > ;
(6) (C++23 起)
template < class InputIt,

class Compare = std:: less < /*iter-key-t*/ < InputIt >> >
flat_multimap ( InputIt, InputIt, Compare = Compare ( ) )
- > flat_multimap < /*iter-key-t*/ < InputIt > ,

/*iter-mapped-t*/ < InputIt > , Compare > ;
(7) (自 C++23 起)
template < class InputIt,

class Compare = std:: less < /*iter-key-t*/ < InputIt >> >
flat_multimap ( std:: sorted_equivalent_t , InputIt, InputIt,
Compare = Compare ( ) )
- > flat_multimap < /*iter-key-t*/ < InputIt > ,

/*iter-mapped-t*/ < InputIt > , Compare > ;
(8) (自 C++23 起)
template < ranges:: input_range R,

class Compare = std:: less < /*range-key-t*/ < R >> ,
class Allocator = allocator < byte > >
flat_multimap ( std:: from_range_t , R && , Compare = Compare ( ) ,
Allocator = Allocator ( ) )
- > flat_multimap < /*range-key-t*/ < R > , /*range-mapped-t*/ < R > , Compare,
std:: vector < /*range-key-t*/ < R > ,
/*alloc-rebind*/ < Allocator,
/*range-key-t*/ < R >>> ,
std:: vector < /*range-mapped-t*/ < R > ,
/*alloc-rebind*/ < Allocator,

/*range-mapped-t*/ < R >>>> ;
(9) (自 C++23 起)
template < ranges:: input_range R, class Allocator >

flat_multimap ( std:: from_range_t , R && , Allocator )
- > flat_multimap < /*range-key-t*/ < R > , /*range-mapped-t*/ < R > ,
std:: less < /*range-key-t*/ < R >> ,
std:: vector < /*range-key-t*/ < R > ,
/*alloc-rebind*/ < Allocator,
/*range-key-t*/ < R >>> ,
std:: vector < /*range-mapped-t*/ < R > ,
/*alloc-rebind*/ < Allocator,

/*range-mapped-t*/ < R >>>> ;
(10) (自 C++23 起)
template < class Key, class T, class Compare = std:: less < Key > >

flat_multimap ( std:: initializer_list < pair < Key, T >> , Compare = Compare ( ) )

- > flat_multimap < Key, T, Compare > ;
(11) (自 C++23 起)
template < class Key, class T, class Compare = std:: less < Key > >

flat_multimap ( std:: sorted_equivalent_t , std:: initializer_list < pair < Key, T >> ,
Compare = Compare ( ) )

- > flat_multimap < Key, T, Compare > ;
(12) (自 C++23 起)
仅用于说明的辅助类型别名
template < class InputIt >

using /*iter-val-t*/ =

typename std:: iterator_traits < InputIt > :: value_type ;
( 仅用于说明* )
template < class InputIt >

using /*iter-key-t*/ =

std:: remove_const_t < std:: tuple_element_t < 0 , /*iter-val-t*/ < InputIt >>> ;
( 仅用于说明* )
template < class InputIt >

using /*iter-mapped-t*/ =

std:: tuple_element_t < 1 , /*iter-val-t*/ < InputIt >> ;
( 仅用于说明* )
template < class Allocator, class T >

using /*alloc-rebind*/ =

typename std:: allocator_traits < Allocator > :: template rebind_alloc < T > ;
( 仅用于说明* )
template < ranges:: input_range Range >

using /*range-key-t*/ =

std:: remove_const_t < typename ranges:: range_value_t < Range > :: first_type > ;
( 仅用于说明* )
template < ranges:: input_range Range >

using /*range-mapped-t*/ =

typename ranges:: range_value_t < Range > :: second_type ;
( 仅用于说明* )

这些 推导指引 为 提供，以允许从以下内容进行推导：

1) 一个键容器、一个映射容器和一个比较器。
2) 一个键容器、一个映射容器和一个分配器。
3) 键容器、映射容器、比较器与分配器。
4) std::sorted_equivalent_t 标签、键容器、映射容器和比较器。
5) std::sorted_equivalent_t 标签、键容器、映射容器与分配器。
6) std::sorted_equivalent_t 标签、键容器、映射容器、比较器及分配器。
7) 一个迭代器范围和一个比较器。
8) std::sorted_equivalent_t 标签、迭代器范围与比较器。
9) std:: from_range_t 标签、一个 input_range 范围、一个比较器和一个分配器。
10) std:: from_range_t 标签、一个 input_range 范围和一个分配器。
11) The std::initializer_list 与比较器。
12) std::sorted_equivalent_t 标签、 std::initializer_list 以及比较器。

这些重载仅在满足以下条件时参与重载决议： InputIt 满足 LegacyInputIterator 要求、 Alloc 满足 Allocator 要求，且 Comp 不满足 Allocator 要求。

注意：库判定类型不满足 LegacyInputIterator 要求的程度是未指定的，但至少整型类型不符合输入迭代器的要求。同样地，库判定类型不满足 Allocator 要求的程度也是未指定的，但至少要求成员类型 Alloc::value_type 必须存在，且表达式 std:: declval < Alloc & > ( ) . allocate ( std:: size_t { } ) 在被视为未求值操作数时必须保持良构。

示例

本节内容不完整
原因：缺少示例