Big integers?

HPW · Post by **HPW** » Wed Sep 06, 2006 6:09 am

newLISP v.8.9.8 on Win32 MinGW.

> (/ 951984987716899 2)
-1551688047
> (setq a 951984987716899)
1191591203
> (setq a 951984987716899.0)
9.519849877e+014
> (int 951984987716899.0)
1191591203

Doc: Integers larger than 9,223,372,036,854,775,807 are truncated to 9,223,372,036,854,775,807. Integers smaller than -9,223,372,036,854,775,808 are truncated to -9,223,372,036,854,775,808.

What do I wrong?

cormullion · Post by **cormullion** » Wed Sep 06, 2006 7:56 am

These look correct (although my eyes go funny when I look at them...:-):

Code: Select all

newLISP v.8.9.8 on OSX UTF-8, execute 'newlisp -h' for more info.
> (/ 951984987716899 2)
475992493858449
>  (setq a 951984987716899) 
951984987716899
> (setq a 951984987716899.0)
9.519849877e+14
> (int 951984987716899.0) 
951984987716899
>

so there's something odd.

HPW · Post by **HPW** » Wed Sep 06, 2006 9:13 am

So it seems to be a Win32 MinGW bug.
;-(

Lutz · Post by **Lutz** » Wed Sep 06, 2006 11:45 am

Yes, there is definitely a problem with the new 64Bit stuff on Win32 MinGW, I will investigate.

Lutz

Lutz · Post by **Lutz** » Wed Sep 06, 2006 3:04 pm

Fortunately this was only a display problem with ints on Win32, fixed in development version 8.9.9. See announcement in news section.

Lutz