From: Mark Phillips <umphill5 AT cs DOT umanitoba DOT ca>
Newsgroups: comp.os.msdos.djgpp
Subject: Re: Dynamic Array - Need HELP
Date: Sun, 4 Jul 1999 22:55:43 -0500
Organization: The University of Manitoba
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> I want to create a array of size mpx by mpy.
> After this code, sizeof(v) = 8, why ???
> 

well, because v is a pointer to a pointer, and the size of any pointer is
8 bytes.  don't worry, your memory is allocated fine, it's just that since
it is dynamically allocated, you can't use sizeof() to check how much
memory you allocated.

mark

> unsigned char **v;
> int mpx,mpy,i;
> 
> mpx=64;
> mpy=48;
> 
> v = new unsigned char*[mpy];
> for(i=0;i<mpy;i++)
> {
>   v[i]=new unsigned char[mpx];
> }
> 
> 
> 
> 
>