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Index › Programming Questions & Help › Syntax Questions › variable longs not working
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variable longs not working (Read 274 times)
nightwork
variable longs not working
Dec 12th, 2008, 9:12am  
Hello all,

Perhaps someone can explain what I am missing. I wrote this code:

long test;
void setup()
{
 test = 2147483648;
}
void draw()
{
}

and when I try to run I get the following error:

"the literal 2147483648 of type int is out of range"

What is going on?

Nightwork
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PhiLho 
Re: variable longs not working
Reply #1 - Dec 12th, 2008, 11:04am  
Long literal numbers must be written 2147483648L (or 2147483648l but I find it less readable, we can mix 1 and l without proper font).
It is the reverse for decimal numbers: 3.1415926 is a double, if you need a float, you must write 3.1415926F (or f).
Although it is a Java rule, I think Processing is doing some magic to do automatic casts.
float test = 3.1415; is illegal in Java but OK in Processing (thanks to pre-processing, I think).
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nightwork
Re: variable longs not working
Reply #2 - Dec 13th, 2008, 1:37am  
Thank you very much. Is there a way for this information to get added to the page about long variable. Here is a link to the page I using to try to figure it out how to use longs.

http://www.processing.org/reference/long.html
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