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std::hash::hash

From cppreference.com
< cpp‎ | utility‎ | hash
 
 
Utilities library
General utilities
Date and time
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Formatting library (C++20)
(C++11)
Relational operators (deprecated in C++20)
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(C++20)
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(C++14)
(C++11)
(C++11)
(C++11)
(C++17)
Common vocabulary types
(C++11)
(C++17)
(C++17)
(C++17)
(C++17)

Elementary string conversions
(C++17)
(C++17)
 
 

The std::hash class should be DefaultConstructible, CopyConstructible, and Destructible.