SIGN

SIGN

The SIGN function returns +1, 0, or -1 depending on the sign of the argument.

Syntax 1

function sign (arg-1)

Syntax 2

$sign (arg-1)

Arguments

• arg-1 must be a numeric data item or literal.

Result

The function returns returns +1, 0, or -1 depending on the sign of arg-1.

Examples

Example - Check if a value is positive or negative.

working-storage section.

77 var pic s9(9).

...

procedure division.

...

evaluate function sign(var)

when -1

|var contains a negative value

when 0

|var contains zero

when 1

|var contains a positive value

end-evaluate.