efun: sgn

SYNOPSIS:

        int sgn (int|float arg)

DESCRIPTION:

        Return the sign of the argument.

        arg  sgn(arg)
        --------------
        > 0   1
          0   0
        < 0  -1

HISTORY:

        Introduced in LDMud 3.2.9.

SEE ALSO:

	
	abs(E)