NAME
	 intp - check if a variable is an integer

SYNOPSIS
	int intp(mixed arg)

DESCRIPTION
	The intp efun returns true if arg is an integer number.

RETURN VALUE
	1, if arg is an integer, 0 else.

EXAMPLES
	is_int = intp(my_var);

See also: efun/stringp, efun/pointerp, efun/objectp, efun/clonep