problem with calc

elunkes · 3rd May 2012, 16:01

Hi,

I am collecting the size of a HD on a remote server using WMIC this way:

Strcpy $ R0 '"$ SYSDIR \ cmd.exe" / c "wmic / node: SRVAPS04 volume where (DriveLetter like"D:") get Capacity | more +1"'
nsExec ExecToStack :: $ R0

This correctly returns the value in bytes ($R2 = 163370233856), but when I try to calculate something with the value returned is the result of wrong calculation

ex.: IntOp $R2 $R2 * 1
returns 161476608

totally different value than expected

what kind of calculation NSIS is doing to bring this result?

Afrow UK · 3rd May 2012, 17:41

NSIS uses 32-bits. Use System::Int64Op.

Stu

elunkes · 3rd May 2012, 20:02

Thanks Afrow... thats it!

3rd May 2012, 16:01	#1
elunkes Junior Member Join Date: Aug 2008 Location: Sao Paulo - Brazil Posts: 5	problem with calc Hi, I am collecting the size of a HD on a remote server using WMIC this way: Strcpy $ R0 '"$ SYSDIR \ cmd.exe" / c "wmic / node: SRVAPS04 volume where (DriveLetter like"D:") get Capacity \| more +1"' nsExec ExecToStack :: $ R0 This correctly returns the value in bytes ($R2 = 163370233856), but when I try to calculate something with the value returned is the result of wrong calculation ex.: IntOp $R2 $R2 * 1 returns 161476608 totally different value than expected what kind of calculation NSIS is doing to bring this result?

3rd May 2012, 17:41	#2
Afrow UK Moderator Join Date: Nov 2002 Location: Birmingham, England Posts: 8,202	NSIS uses 32-bits. Use System::Int64Op. Stu Need an installer? http://www.afrowsoft.co.uk

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3rd May 2012, 20:02	#3
elunkes Junior Member Join Date: Aug 2008 Location: Sao Paulo - Brazil Posts: 5	Thanks Afrow... thats it!