Internal CRT function. Retrieves the current collation code page of the thread.
___lc_collate_cp_func is an internal CRT function that is used by other CRT functions to get the current collation code page from the thread local storage for CRT data. This information is also available by using the _get_current_locale function.
Internal CRT functions are implementation-specific and subject to change with each release. We don't recommend their use in your code.