名前空間
変種
操作

std::unordered_multimap::size

提供: cppreference.com

 
 
 
のstd :: unordered_multimap
メンバ関数
Original:
Member functions
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
unordered_multimap::unordered_multimap
unordered_multimap::~unordered_multimap
unordered_multimap::operator=
unordered_multimap::get_allocator
イテレータ
Original:
Iterators
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
unordered_multimap::begin
unordered_multimap::cbegin
unordered_multimap::end
unordered_multimap::cend
容量
Original:
Capacity
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
unordered_multimap::erase
unordered_multimap::size
unordered_multimap::max_size
修飾子
Original:
Modifiers
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
unordered_multimap::clear
unordered_multimap::insert
unordered_multimap::emplace
unordered_multimap::emplace_hint
unordered_multimap::erase
unordered_multimap::swap
ルック
Original:
Lookup
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
unordered_multimap::count
unordered_multimap::find
unordered_multimap::equal_range
バケットインターフェイス
Original:
Bucket interface
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
unordered_multimap::begin2
unordered_multimap::end2
unordered_multimap::bucket_count
unordered_multimap::max_bucket_count
unordered_multimap::bucket_size
unordered_multimap::bucket
ハッシュポリシー
Original:
Hash policy
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
unordered_multimap::load_factor
unordered_multimap::max_load_factor
unordered_multimap::rehash
unordered_multimap::reserve
オブザーバー
Original:
Observers
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
unordered_multimap::hash_function
unordered_multimap::key_eq
 
size_type size() const;
(C++11およびそれ以降)

Returns the number of elements in the container, i.e. std::distance(begin(), end()).

目次

[編集] パラメータ

(なし)
Original:
(none)
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

[編集] 値を返します

コンテナ内の要素の数
Original:
the number of elements in the container
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

[編集] 例外

noexcept specification:  
noexcept
  (C++11およびそれ以降)

[編集] 複雑

Constant

[編集]

The following code uses size to display the number of elements in a std::unordered_multimap<int>:

#include <unordered_multimap>
#include <iostream>
 
int main()
{
    std::unordered_multimap<int, char> nums {{1, 'a'}, {3, 'b'}, {5, 'c'}, {7, 'd'}};
 
    std::cout << "nums contains " << nums.size() << " elements.\n";
}

Output:

nums contains 4 elements.

[編集] も参照してください

コンテナが空であるかどうかをチェックします
(パブリックメンバ関数) [edit]
要素の最大数を返します
Original:
returns the maximum possible number of elements
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

(パブリックメンバ関数) [edit]