NAME
	sizeof - get size of an array

SYNOPSIS
	int sizeof(mixed *arr)

CONFIG.H - MUDOS_LIBERAL_SIZEOF
	int sizeof(mixed var)


DESCRIPTION
	Return the number of elements in array arr.

	If config.h defines MUDOS_LIBERAL_SIZEOF, the argument may
	be a string, mapping or an array, otherwise the function
	will return 0.

SEE ALSO
	kfun/map_sizeof, kfun/strlen, macros/a_sizeof