concurrent_unordered_map::at Method

Finds an element in a concurrent_unordered_map with a specified key value.. This method is concurrency-safe.

mapped_type& at(
   const key_type& _Keyval
);

const mapped_type& at(
   const key_type& _Keyval
) const;

Parameters

• _Keyval
  The key value to find.

Return Value

A reference to the data value of the element found.

Remarks

If the argument key value is not found, the function throws an object of class out_of_range.

Requirements

Header: concurrent_unordered_map.h

Namespace: concurrency

See Also

Reference

concurrent_unordered_map Class