OBSOLETE
SYNOPSIS
int m_sizeof(mapping map)
DESCRIPTION
Returns the number of indices in mapping 'map'.
This function is in fact an alias for sizeof().
HISTORY
Since LDMud 3.2.9, not available if driver is compiled without
USE_DEPRECATED.
SEE ALSO
mappingp(E), mkmapping(E), m_indices(E), m_values(E),
m_delete(E), sizeof(E), widthof(E).