From:	"John M. Aldrich" <fighteer AT cs DOT com>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: compile error: char *frame_ptr = new char[20][20] ('X')
Date:	Sat, 22 Feb 1997 22:25:09 -0800
Organization:	Two pounds of chaos and a pinch of salt
Lines:	38
Message-ID:	<330FE2C5.2F2@cs.com>
References:	<3316832f DOT 19841747 AT news DOT erols DOT com>
Reply-To:	fighteer AT cs DOT com
NNTP-Posting-Host:	ppp103.cs.com
Mime-Version:	1.0
To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp

Hades wrote:
> 
> #include <iostream.h>
> 
> main()
> {
>         char *frame_ptr = new char[20][20] ('X');
> 
>         delete[][] frame_ptr;
> }
> 
> ERROR message:
> 
>         initialization to 'char *'  from 'char (*) [20]'
> 
> 1) how did that happen?

A two dimensional array must be referenced with double indirection,
i.e.:

  char **frame_ptr = new char[20][20] ('X');

> 2) and when i free up the memory do i use:
> 
>         a) delete frame_ptr;
>         b) delete frame_ptr[];
>         c) delete frame_ptr[][];

I'm not an expert with C++, but I am pretty sure that a) will work.  b)
and c) might work as well - the best way to find out is to test it.

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