Re: Does the keyword volatile work?

["Stephen P. Smith" <ischis2 at cox dot net>]

Thanks.

sps

Fergus Henderson wrote:

> On 12-May-2003, Stephen P. Smith <ischis2@cox.net> wrote:
>  
>
> > Ok, I did what I thought you told me to do, and it didn't work. 
> > assignThisNow isn't getting set right away.
> >
> > 258:../../code/ipc/ipck.cpp **** DWORD CDECL someFunction( DWORD, DWORD 
> > p1, DWORD, DWORD, DWORD, DWORD)
> > 259:../../code/ipc/ipck.cpp **** {
> > 433                  .LM1:
> > 434 0000 55               pushl    %ebp
> > 435 0001 89E5             movl    %esp, %ebp
> > 436 0003 56               pushl    %esi
> > 437 0004 53               pushl    %ebx
> > 260:../../code/ipc/ipck.cpp ****   volatile DWORD assignThisNow = 
> > *(volatile DWORD *)&p1;
> > 261:../../code/ipc/ipck.cpp ****   NumericNameTYP threadName = 
> > (NumericNameTYP) assignThisNow;
> > 262:../../code/ipc/ipck.cpp ****   DWORD periodIndex = 0;
> > 439                  .LM2:
> > 440                  .LBB2:
> > 441 0005 31F6             xorl    %esi, %esi
> >    
>
> Declaring things as volatile doesn't guarantee that the compiler won't
> put some other, non-volatile computation at the start of the function.
>
>