Date:	Sun, 21 Jun 1998 01:59:07 -0500 (CDT)
From:	Andrew Deren <aderen AT eecs DOT uic DOT edu>
To:	"John M. Aldrich" <fighteer AT cs DOT com>
cc:	djgpp AT delorie DOT com
Subject:	Re: how do I pass more than one value out of a function???
In-Reply-To:	<358C1A86.CE15E3FB@cs.com>
Message-ID:	<Pine.GSO.3.96.980621015613.20672A-100000@oscar.eecs.uic.edu>
MIME-Version:	1.0

On Sat, 20 Jun 1998, John M. Aldrich wrote:

> Sal wrote:
> > 
> > I come from a pascal background... anyway, I know how to use a fundtion to
> > ruturn a value.  What do I do to mave something that ruturns several
> > values??
> 
> I recommend asking questions like these on comp.lang.c; it's for
> C-specific issues, not DJGPP specific ones.
> 
> You return multiple values from a C function in precisely the same way
> you do it in Pascal; you pass pointers to the variables you want to
> alter as arguments to the function and modify those values.  Pascal
> refers to this as VAR passing; it has the same effect.  You can also
> create a struct to hold the values and return that from the function.
> 
Actually I would disagree with that. Pascal var passing is like c++ pass
by reference. Passing a pointer is different than passing a reference.

TO return several values just use:

void foo(int& var1, char& var2, etc...)

and then you call the function with the vars as regular function.
foo(myInt, myChar);

(I agree that this is more for comp.lang.c)

> Please read a good C textbook such as _The New C Primer Plus, 2nd
> Edition_, by Waite & Del Prata, or Kernighan and Ritchie's _The C
> Programming Language, 2nd Edition_.  Both are extraordinarily
> well-written and will give you all the information you need.
> 
> -- 
> ---------------------------------------------------------------------
> |      John M. Aldrich       | History has the relation to truth    |
> |       aka Fighteer I       | that theology has to religion--i.e., |
> |   mailto:fighteer AT cs DOT com   | none to speak of.                    |
> | http://www.cs.com/fighteer |                    -Lazarus Long     |
> ---------------------------------------------------------------------
> 

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