intl 1.0.3: Trying to understand the internal error functions

Hi!

intl_error.h defines common error handling functions and "global"
variables - in addition to those in the respective objects.

In order to "synchronize" global and individual errors, there are three
functions (plural of error):
intl_errors_reset
intl_errors_set_custom_msg
intl_errors_set_code

However, the first and the third are NEVER referenced. The second is
only used in connection with intl_error_set_code (note singular error!)

All this seems not to add up. Are there any docs available somewhere?

HPO