llRound

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/LSL

Round

llRound

Summary

Function: integer llRound( float val );

11	Function ID
0.0	Forced Delay
10.0	Energy

Returns the integer that val is closest to.

• float

val

–

Any valid float value

If the absolute value of the tenths position is 4 or less, val is rounded off; otherwise, val is rounded towards positive infinity.

Caveats

• The returned value is -2147483648 (0x80000000) if the arithmetic result is outside of the range of valid integers (-2147483648 to 2147483647 inclusive).

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Examples

default
{
   state_entry()
   {  
       llSay(0,  "The rounded value of -4.9 is: "+(string)llRound(-4.9) );
       //Returns "The rounded value of -4.9 is: -5"
       
       llSay(0,  "The rounded value of -4.1 is: "+(string)llRound(-4.1) );
       //Returns "The rounded value of -4.1 is: -4"
       
       llSay(0,  "The rounded value of 4.5 is: "+(string)llRound(4.5) );
       //Returns "The rounded value of 4.5 is: 5"
       
       llSay(0,  "The rounded value of 4.9 is: "+(string)llRound(4.9) );
       //Returns "The rounded value of 4.9 is: 5"
       
       llSay(0,  "The rounded value of 4.1 is: "+(string)llRound(4.1) );
       //Returns "The rounded value of 4.1 is: 4"

       llSay(0,  "The rounded value of -4.5 is: "+(string)llRound(-4.5) );
       //Returns "The rounded value of -4.5 is: -4"
    }
}

Notes

• For positive values, it is quicker to add 0.5 to the value and cast to an integer. i=(integer)(f+0.5) produces less bytecode than i=llRound(f) and is about 5 times faster in execution, while giving the same result.

See Also

Functions

•	llCeil	–	Rounds the float to an integer towards positive infinity
•	llFloor	–	Rounds the float to an integer towards negative infinity

Deep Notes

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Signature
function integer llRound( float val );