Unofficial LSL Reference

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Function: llAbs

integer llAbs(integer IntVal)

Return the absolute value of the parameter.

a positive or negative integer value or the name of an integer variable.

The result will be an integer that is the absolute value of IntVal, that is the value with any negative sign removed.

More rigorously, the result will be the same as IntVal if IntVal is positive or zero, and -IntVal otherwise.

To determine the absolute value of a float, use llFabs.
As a special case, the absolute value of -2,147,483,648 (-2³¹, the lowest integer LSL supports) is returned by this function as -2,147,483,648 because the positive integer 2,147,483,648 is outside the range of LSL integers.

integer AbsInt;
AbsInt = llAbs(-45);   // sets AbsInt to 45
AbsInt = llAbs(0);     // sets AbsInt to 0
AbsInt = llAbs(45);    // sets AbsInt to 45

default
{
    state_entry()
    {
        llOwnerSay((string)llAbs(-3) + ", " + (string)llAbs(5)); // will print: -3, 5
    }
}