RE: [DEV-C++] BUG: Dev-C 4.9.20 consolprogram has only access to 1MB memory.

[Ioannis V. <no...@ho...>]

Yes, you can access the rest of memory as "free store". Stack is used to
store the execution path of a program and local objects.

Example. Imagine that you have the code:

void k()
{
 int x=1;
 f();
 int y=g(x);
 f();
}

int main()
{
 int a=5;
 f();
 int r=g(a);
 k();
}


In the stack the following is stored:

a=5;
pointer to f() call. -> // f() things executed here. When it finishes: |
<-----------------------------------------------------------------------
-------
int r;
pointer to g() call--> // g() things executed here. When it finishes: |
<-----------------------------------------------------------------------
--------
r=some_value
pointer to k() call --> 
                              int x=1;
                              pointer to f() call ---> //finishes |
                              <-------------------------------------
                              int y;
                              pointer to g() call---> // finishes|
                              <--------------------------------------
                              y=some_value
                              pointer to f() call ---> //finishes |
                              <-------------------------------------
                              k() finishes. Automatic local objects in
the stack die |
<-----------------------------------------------------------------------
----------------

main() ends. 
Automatic local objects in the stack die
return success indicator


I hope it gives some idea.


Ioannis

* Ioannis Vranos
* Programming pages: http://www.noicys.cjb.net
* Alternative URL: http://run.to/noicys


> -----Original Message-----
> From: dev...@li... 
> [mailto:dev...@li...] On Behalf Of staale
> Sent: Monday, May 13, 2002 9:05 AM
> To: Dev-C++ Mailing List
> Subject: Re: [DEV-C++] BUG: Dev-C 4.9.20 consolprogram has 
> only access to 1MB memory.
> 
> 
> Well, I'll hold my horses a bit longer before I cry wolf, 
> wolf the next
> time.:o)
> 
> As Ioannis has pointed out the different results are 
> differences in the
> implementation of the mingw32 compiler. Evolving from 
> allowing ca 31MB stack
> space to ca 2MB. Probably to prevent us from cheating?
> 
> The following code shows that you have access to all the 
> memory your OS will
> give you *S*.