Returns %TRUE if @error matches @domain and @code, %FALSE
otherwise. In particular, when @error is %NULL, %FALSE will
be returned.
If @domain contains a FAILED (or otherwise generic) error code,
you should generally not check for it explicitly, but should
instead treat any not-explicitly-recognized error code as being
equilalent to the FAILED code. This way, if the domain is
extended in the future to provide a more specific error code for
a certain case, your code will still work.
Returns %TRUE if @error matches @domain and @code, %FALSE otherwise. In particular, when @error is %NULL, %FALSE will be returned.
If @domain contains a FAILED (or otherwise generic) error code, you should generally not check for it explicitly, but should instead treat any not-explicitly-recognized error code as being equilalent to the FAILED code. This way, if the domain is extended in the future to provide a more specific error code for a certain case, your code will still work.