Hi Victor,

Thanks for the reply.  I found the mmalloc and mcalloc in
Engine/memalloc.c but didn't check to see if they were #ifdef'd by
platform.  The mcalloc though in Csound in the memalloc.c file though
does not take in the same args as calloc, instead initializing an x
number of 1 byte elements, pretty much the same as malloc.  So I guess
the initialisation to 0 is really the only difference and I'm safe to
use either as long as I'm initiailizing values anyways of the struct
that is allocated.  I guess maybe their usages become more idiomatic
over time as to when to use either.

Thanks!
steven

On 8/11/06, Victor Lazzarini <Victor.Lazzarini@nuim.ie> wrote:
> As far as I know, malloc and calloc are just different interfaces
> to the same thing, with calloc being, as you said, preferred for
> arrays as it initialises all elements to 0.
>
> mmalloc and mcalloc are as far as I can tell glibc only (they do not
> feature on MS Windows),  part of so-called 'memory-mapped' malloc
> package.
>
> Victor
>
> At 11:09 11/08/2006, you wrote:
> >Hi All,
> >
> >I was wondering today what the difference was between mmalloc and
> >mcalloc is.  It seems that one initializes to zeros while one doesn't.
> >  Since I'm no C expert, it seems to me that one would want to
> >initialize everything in the struct after using either if allocating
> >memory that's sizeof(struct) so what their starting state is wouldn't
> >matter, so this is a little beyond me when to use which.
> >
> >Thanks!
> >steven
> >
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> Victor Lazzarini
> Music Technology Laboratory
> Music Department
> National University of Ireland, Maynooth
>
>
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