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hash Structure (C++ Standard Library)

Defines a member function that returns a value that's uniquely determined by Val. The member function defines a hash function that's suitable for mapping values of type thread::id to a distribution of index values.

Syntax

template <>
struct hash<thread::id> :
    public unary_function<thread::id, size_t>
{
    size_t operator()(thread::id Val) const;

};

Requirements

Header: <thread>

Namespace: std

See also

Header Files Reference
<thread>
unary_function Struct