Re: [Dev-C++] dynamic allocation and structs

[Carlos d. M. <cg...@wo...>]

Per Westermark escribi=F3:

> Well, maybe not directly forever.
>
> It will also be automatically released - for most operating systems, th=
at
> is - when the application ends.

Or when exiting the scope.

>
>
> /Per W
>
> On Thu, 24 Oct 2002, Daniel Glenfield wrote:
>
> > I can help with the first - the lifetime of a variable created with m=
alloc()
> > is forever - until you call free() of course!
> >
> >
> >
> >
> > >From: "Scott Williams" <se...@al...>
> > >Reply-To: <se...@al...>
> > >To: <dev...@li...>
> > >Subject: [Dev-C++] dynamic allocation and structs
> > >Date: Thu, 24 Oct 2002 08:18:24 -0400
> > >
> > >Hi,
> > >
> > >I'm working in C (no C++ please).  Got a couple of questions related=
 to
> > >dynamic allocation and in particular, dynamically allocating an arra=
y of
> > >structs.
> > >
> > >First, what is the duration of memory allocated by malloc (etc.)?  I=
n
> > >particular, I want to dynamically allocate/de-allocate several globa=
l
> > >variables within a single subroutine called from main and so want to=
 be
> > >sure
> > >that the allocated memory exists beyond the scope of that subroutine=
=2E
> > >
> > >Second, it is my understanding that it is perfectly acceptable to ha=
ve an
> > >array of structs.  E.g.,
> > >
> > >struct mystruct {
> > >   double var1;
> > >   long   var2;
> > >   etc...
> > >}
> > >
> > >. . .
> > >
> > >struct mystruct data[100];
> > >
> > >Is this correct?  If so, what then is the calling sequence to dynami=
cally
> > >allocate an array of structs, and, in particularly, make the result
> > >available globally?
> > >
> > >Thanks for your help (& sorry if this is naive).
> > >
> > >Scott Williams
> > >
> > >
> > >
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