’. The last value acts as a wild card, causing all mapped axis components to be unmapped.
This routine attempts to execute even if STATUS is set on entry, although no further error report will be made if it subsequently fails under these circumstances.
A comma-separated list of axis component names may also be given, in which case each component will be unmapped in turn.
A value of zero may be supplied for the IAXIS argument, in which case the routine will unmap the
specified component(s) for all the NDF
An error will be reported if a component has not previously been mapped for access, except in cases
where a wild card unmapping operation is specified (either with a component name of
’ or an
axis number of zero).