m_delete - remove a key from a mapping
mapping m_delete(mapping m, mixed element);
This efun is only available if COMPAT_32 is defined.
It behaves exactly like map_delete(), except that it returns its first
argument.
Note: the 3.2 version actually returns a copy of the mapping,
so for strict compatibility the following simul is suggested:
<pre>
mapping m_delete(mapping m, mixed element)
{
mapping ret = copy(m);
map_delete(ret, element);
return ret;
}
</pre>
However, this version is significantly faster as it avoids the copy.
See also:
map_delete
Tim Hollebeek Beek@ZorkMUD, Lima Bean, IdeaExchange, and elsewhere