nasm sizeof ?

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gavin

Joined: 20 Jul 2008
Posts: 23

gavin 26 Jul 2008, 16:01

How do i get the size of a struc in nasm?
Example.

Code:

STRUC WSADATA 
  wVersion       resw 1 
  wHighVersion   resw 1 
  szDescription  resb 256+1 
  szSystemStatus resb 128+1
  iMaxSockets    resw 1
  iMaxUdpDg      resw 1
  lpVendorInfo   resw 1
ENDSTRUC

Then in my data section i have

Code:

sockAddr dd  SOCKADDR_IN           ; pointer to structure

I know masm has the sizeof operator...

26 Jul 2008, 16:01

asmhack

Joined: 01 Feb 2008
Posts: 431

asmhack 26 Jul 2008, 18:14

http://board.flatassembler.net/topic.php?t=8575

26 Jul 2008, 18:14

gavin

Joined: 20 Jul 2008
Posts: 23

gavin 26 Jul 2008, 18:34

I don't understand that .

26 Jul 2008, 18:34

Mac2004

Joined: 15 Dec 2003
Posts: 314

Mac2004 26 Jul 2008, 18:57

gavin: Have you read the Fasm manual? The manual descripes what 'virtual' directive does. That could help you to understand the example vid is referring to.

regards,
Mac2004

26 Jul 2008, 18:57

gavin

Joined: 20 Jul 2008
Posts: 23

gavin 27 Jul 2008, 13:20

Hi ,
I don't use fasm at all I was just hoping someone would know how to do it in nasm.

27 Jul 2008, 13:20

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