From cppreference.com
booloperator==(constlocale&other)const; (1) booloperator!=(constlocale&other)const; (2) (until C++20)Tests two locales for equality. Named locales are considered equal if their names are equal. Unnamed locales are considered equal if they are copies of each other.
The != operator is
from operator==.
(since C++20)Parameters
Return value
1)true if other is a copy of *this or has an identical name, false otherwise.
2)false if other is a copy of *this or has an identical name, true otherwise.
Example
See also
constructs a new locale
(public member function)
returns the name of the locale or "*" if unnamed
(public member function)