sgn

int sgn(num x)

num - any numeric type (int or fixed)

Description

Returns the sign of x as an integer.

1 – x is positive

0 – x is zero

-1 – x is negative

Examples

sgn( 7) -> 1
sgn( -7) -> -1
sgn( 12.3) -> 1
sgn(-12.3) -> -1
sgn( 0) -> 0