Returns a canonical locale identifier by mapping an arbitrary locale identification string to the canonical identifier.
- iOS 2.0+
- macOS 10.3+
- tvOS 9.0+
- watchOS 2.0+
- Core Foundation
The allocator to use to allocate memory for the new object. Pass
NULLor kCFAllocatorDefault to use the current default allocator.
A string representation of an arbitrary locale identifier (for example, “English”).
A canonical locale identifier created by mapping the arbitrary locale identification string to the canonical identifier for the corresponding locale (for example, “en”). Returns
NULL if there was a problem creating the object. Ownership follows the The Create Rule.