SGN

PET VIC-20 C64 C16 Plus/4 C128 X16

The SGN() function returns the sign of a numerical argument as follows:

Argument	Result
negative value	-1
zero	0
positive value (excluding zero)	1

Function header

DECLARE FUNCTION SGN AS INT (num AS BYTE) SHARED STATIC INLINE
DECLARE FUNCTION SGN AS INT (num AS INT) OVERLOAD SHARED STATIC INLINE
DECLARE FUNCTION SGN AS INT (num AS WORD) OVERLOAD SHARED STATIC INLINE
DECLARE FUNCTION SGN AS INT (num AS LONG) OVERLOAD SHARED STATIC INLINE
DECLARE FUNCTION SGN AS INT (num AS FLOAT) OVERLOAD SHARED STATIC INLINE