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std::hash (std::string, std::wstring, std::u8string, std::u16string, std::u32string, std::pmr::string, std::pmr::wstring, std::pmr::u8string, std::pmr::u16string, std::pmr::u32string) - cppreference.com
cppreference.com

std::hash (std::string, std::wstring, std::u8string, std::u16string, std::u32string, std::pmr::string, std::pmr::wstring, std::pmr::u8string, std::pmr::u16string, std::pmr::u32string)

: cppreference.com
 
C++
(C++20)
(C++20)
(C++17)
(C++11)
(C++11)
(C++11)
 
 
std::basic_string
 
<tbody> </tbody>
template<> struct hash<std::string>; template<> struct hash<std::wstring>;
(C++11)
template<> struct hash<std::u8string>;
(C++20)
template<> struct hash<std::u16string>; template<> struct hash<std::u32string>;
(C++11)
template<> struct hash<std::pmr::string>; template<> struct hash<std::pmr::wstring>; template<> struct hash<std::pmr::u8string>; template<> struct hash<std::pmr::u16string>; template<> struct hash<std::pmr::u32string>;
(C++20)

std::hash

std::basic_string_view S SV s S std::hash<S>()(s) == std::hash<SV>()(SV(s))

(C++17)

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

:

3544599705012401047

(C++11)

() [edit]

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