From:	ao950 AT FreeNet DOT Carleton DOT CA (Paul Derbyshire)
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: Dynamically declaring 2-d arrays
Date:	14 Feb 1998 11:20:24 GMT
Organization:	The National Capital FreeNet
Message-ID:	<6c3ulo$jq@freenet-news.carleton.ca>
References:	<34DF9744 DOT C7CFDBFE AT ea DOT oac DOT uci DOT edu>
Reply-To:	ao950 AT FreeNet DOT Carleton DOT CA (Paul Derbyshire)
NNTP-Posting-Host:	freenet3.carleton.ca
Lines:	28
To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp

My dynamic 2D array recipe:


int (*foo)[ysize] = malloc (xsize*ysize*sizeof(int));
/* Mallocked memory for the array and assigned to foo, which is of type
   pointer to array of ysize ints. */
/* Check for NULL */
/* ... */
foo[x][y] = bar;
/* ... */
free(foo);

As for C++, it ought to be possible (at least with gnu) to use

foo = new int[y][x];
/* ... */
delete [] foo;

(is it?)


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Paul Derbyshire ao950 AT freenet DOT carleton DOT ca pgd73 AT hotmail DOT com

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