EFUN: m_sizeof

SYNTAX:
int m_sizeof( map );
  mapping map;

DESCRIPTION:
Determines the number of index:value pair elements in the mapping 'map'.
Alternatively, the efun sizeof accomplishes the same.

RETURN VALUE:
Returns the number of pair elements in the mapping.

SEE ALSO:
mappingp
mkmapping
m_indices
m_values
m_delete
sizeof

EXAMPLE:
mapping mp;
int i;

mp = ([ "The":"Holy", "Mission":"mud", "is":"the", "best":"!" ]);
i = m_sizeof( mp );
// i is now 4.
