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std::hash (std::string, std::wstring, std::u16string, std::u32string)

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< cpp‎ | string‎ | basic string

 
 
 
std::basic_string
メンバ関数
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Member functions
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basic_string::basic_string
basic_string::operator=
basic_string::assign
basic_string::get_allocator
要素アクセスの循環参照を解除するために使用されている
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Element access
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basic_string::at
basic_string::operator[]
basic_string::front(C++11)
basic_string::back(C++11)
basic_string::data
basic_string::c_str
イテレータ
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Iterators
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basic_string::begin
basic_string::cbegin

(C++11)
basic_string::end
basic_string::cend

(C++11)
basic_string::rbegin
basic_string::crbegin

(C++11)
basic_string::rend
basic_string::crend

(C++11)
容量
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Capacity
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basic_string::empty
basic_string::size
basic_string::length
basic_string::max_size
basic_string::reserve
basic_string::capacity
basic_string::shrink_to_fit(C++11)
操作
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Operations
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basic_string::clear
basic_string::insert
basic_string::erase
basic_string::push_back
basic_string::pop_back(C++11)
basic_string::append
basic_string::operator+=
basic_string::compare
basic_string::replace
basic_string::substr
basic_string::copy
basic_string::resize
basic_string::swap
検索
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Search
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basic_string::find
basic_string::rfind
basic_string::find_first_of
basic_string::find_first_not_of
basic_string::find_last_of
basic_string::find_last_not_of
定数
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Constants
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basic_string::npos
非メンバ関数
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Non-member functions
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operator+
operator==
operator!=
operator<
operator>
operator<=
operator>=
swap(std::basic_string)
operator<<
operator>>
getline
stoi
stol
stoll
(C++11)
(C++11)
(C++11)
stoul
stoull
(C++11)
(C++11)
stof
stod
stold
(C++11)
(C++11)
(C++11)
to_string(C++11)
to_wstring(C++11)
ヘルパークラス
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Helper classes
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hash<std::string>
hash<std::wstring>
hash<std::u32string>
hash<std::u16string>
(C++11)
 
Defined in header <string>
template<>struct hash<std::string>;

template<>struct hash<std::wstring>;
template<>struct hash<std::u16string>;

template<>struct hash<std::u32string>;
(C++11およびそれ以降)

The template specializations of std::hash for the various string classes allow users to obtain hashes of strings.

[編集]

The following code shows one possible output of a hash function used on a string:

#include <iostream>#include <string>#include <functional>   int main(){std::string s ="Stand back! I've got jimmies!";std::hash<std::string> hash_fn;   size_t hash = hash_fn(s);   std::cout<< hash <<'\n';}

出力:

325378910

[編集]参照

(C++11)
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