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REMOVED EFUN
SYNOPSIS
int mapping_contains(mixed &data1, ..., &dataN, map, key)

DESCRIPTION
If the mapping contains the key map, the corresponding values
are assigned to the data arguments, which massed be passed by
reference, and 1 is returned. If key is not in map, 0 is
returned and the data args are left unchanged.
It is possible to use this function for a 0-value mapping, in
which case it has the same effect as member(E).

HISTORY
Renamed to 'm_contains()' in LDMud 3.2.6.
Since LDMud 3.2.9, not available if driver is compiled without
USE_DEPRECATED.
Removed in LDMud 3.3.

SEE ALSO
mappings(LPC), member(E)