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php4-beta | 199912

Re: [PHP4BETA] TSRM problems... UMBRs everywhere:-(( From: Thies C. Arntzen (thies <email protected>)
Date: 12/23/99

On Thu, 23 Dec 1999 zeev <email protected> wrote:

> On Thu, 23 Dec 1999, Thies C. Arntzen wrote:
>
> > On Thu, 23 Dec 1999 zeev <email protected> wrote:
> >
> > > On Thu, 23 Dec 1999, Thies C. Arntzen wrote:
> > >
> > > > remember - global variables are usually zeroed when the program loads:
> > > >
> > > > #include <stdio.h>
> > > > int not_reported;
> > > > main()
> > > > {
> > > > int reported;
> > > > printf("%d\n",not_reported);
> > > > printf("%d\n",reported);
> > > > }
> > > >
> > > > purify will not report not_reported 'cause the crt *will* initialize it to
> > > > zero!
> > >
> > > I think it's a purify bug then.
> >
> > sorry, you're wrong:
> >
> > bss section
> > -----------
> >
> > This section contains zeroed bytes when your program begins running. It is
> > used to hold unitialized variables or common storage. The length of each
> > partial program's bss section is important, but because it starts out
> > containing zeroed bytes there is no need to store explicit zero bytes in
> > the object file. The bss section was invented to eliminate those explicit
> > zeros from object files.
>
> This is specific to Solaris, I think. AFAIK, the C standard doesn't say
> that globals are zerod if not explicitly initialized (the C++ standard
> says that about static member variables, but that's about it).

this was taken from the GNU Assembler manual but i also found the
reference to this in - tätärätäh -> K&R 4.9

so it's more c-specific that solaris;-))

>
> > s/c/s/g ??

you don't use vi every day?

could -> should. i think it would be smart if we actually did..

tc

>
> Huh?
>
> Zeev
>
>

Thies C. Arntzen "One Big-Mac, Small Fries and a Coke!"
Digital Collections Phone +49 40 235350 Fax +49 40 23535180
Hammerbrookstr. 93 20097 Hamburg / Germany 

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