dev-cpp-users

[Dev-C++] Extending an array

[Nathan S. <str...@ho...>]

Is there a way at runtime, after an array has been populated to extend it?
Like I have char stuff[40][17] and I want to extend it to stuff[xxxx][17]?

Re: [Dev-C++] Extending an array

[<jos...@ya...>]

I think you can use realloc(), but I don't know how it works neither
how to do it.

hth

Chemanuel


--- Nathan Smith <str...@ho...> wrote:
> Is there a way at runtime, after an array has been populated to
> extend it?
> Like I have char stuff[40][17] and I want to extend it to
> stuff[xxxx][17]?
> 
> _______________________________________________
> Dev-cpp-users mailing list
> Dev...@li...
> http://lists.sourceforge.net/lists/listinfo/dev-cpp-users


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RE: [Dev-C++] Extending an array

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

Using pointers and allocating memory area at the free store. This is done
using malloc(), calloc() & realloc() in C, and in addition new and delete
operators in C++.



Ioannis

* Ioannis Vranos
* Programming pages: http://members.nbci.com/noicys
* Alternative URL: http://run.to/noicys


> -----Original Message-----
> From: dev...@li...
> [mailto:dev...@li...]On Behalf Of
> Nathan Smith
> Sent: Friday, April 06, 2001 6:10 AM
> To: Dev C++
> Subject: [Dev-C++] Extending an array
>
>
> Is there a way at runtime, after an array has been populated to extend it?
> Like I have char stuff[40][17] and I want to extend it to stuff[xxxx][17]?
>
> _______________________________________________
> Dev-cpp-users mailing list
> Dev...@li...
> http://lists.sourceforge.net/lists/listinfo/dev-cpp-users
>

Re: [Dev-C++] Extending an array

[Nathan S. <str...@ho...>]

Know any URLs with examples on how to do it? I am still learning all this...


----- Original Message -----
From: "Ioannis Vranos" <no...@ya...>
To: <dev...@li...>
Sent: Friday, April 06, 2001 10:46 PM
Subject: RE: [Dev-C++] Extending an array


> Using pointers and allocating memory area at the free store. This is done
> using malloc(), calloc() & realloc() in C, and in addition new and delete
> operators in C++.
>
>
>
> Ioannis
>
> * Ioannis Vranos
> * Programming pages: http://members.nbci.com/noicys
> * Alternative URL: http://run.to/noicys
>
>
> > -----Original Message-----
> > From: dev...@li...
> > [mailto:dev...@li...]On Behalf Of
> > Nathan Smith
> > Sent: Friday, April 06, 2001 6:10 AM
> > To: Dev C++
> > Subject: [Dev-C++] Extending an array
> >
> >
> > Is there a way at runtime, after an array has been populated to extend
it?
> > Like I have char stuff[40][17] and I want to extend it to
stuff[xxxx][17]?
> >
> > _______________________________________________
> > Dev-cpp-users mailing list
> > Dev...@li...
> > http://lists.sourceforge.net/lists/listinfo/dev-cpp-users
> >
>
>
> _______________________________________________
> Dev-cpp-users mailing list
> Dev...@li...
> http://lists.sourceforge.net/lists/listinfo/dev-cpp-users
>

RE: [Dev-C++] Extending an array

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

In C:

#include <stdlib.h>

int *p=malloc(sizeof(*p)); /* Allocates one int in free store */

*p=5;
/* assigns the value 5. */

free(p); /* frees the allocated memory */

p=malloc(10*sizeof(*p));
/* or p=malloc(10*sizeof(int)); they are both the same */
/* Allocates an arrray of 10 integers in free store */

p[0]=5;
p[7]=8;

free(p);
-----------------------------------------------------------------

In C++:

#include <new>

int *p=new int;

*p=8;

delete p;

p=new int[10];
p[0]=7;
p[1]=8;

delete[] p;


Ioannis
 
* Ioannis Vranos
* Programming pages: http://members.nbci.com/noicys
* Alternative URL: http://run.to/noicys


> -----Original Message-----
> From: dev...@li... 
> [mailto:dev...@li...]On Behalf Of 
> Nathan Smith
> Sent: Friday, April 06, 2001 2:21 PM
> To: dev...@li...
> Subject: Re: [Dev-C++] Extending an array
> 
> 
> Know any URLs with examples on how to do it? I am still learning 
> all this...