NAME
m_delete - remove an index from a mapping
SYNTAX
mapping m_delete(mapping map, mixed index);
DESCRIPTION
Remove the entry with index 'index' from mapping 'map', and
return the changed mapping. If the mapping does not have an
entry with index 'index', the first argument is returned.
Note that m_delete changes map destructively and only returns
the mapping for compatibility reasons.
SEE ALSO
mappingp, mkmapping, m_indices, m_values, m_sizeof