Subject: Re: Fixing pointer-to-int casts
To: Johnny C. Lam <>
From: Jason Thorpe <>
List: port-alpha
Date: 05/16/1998 08:18:52
On Sat, 16 May 1998 01:09:28 -0400 
 "Johnny C. Lam" <> wrote:

 > I've been making some of the packages in the pkgsrc tree and the xsrc
 > tree, and I get quite a few of the the following warnings:
 > 	warning: cast from pointer to integer of different size
 > 	warning: cast to pointer from integer of different size
 > What is the best way to fix up the code?  Is there a way to avoid
 > sprinkling #ifdef's into the code to differentiate between 32-bit and
 > 64-bit platforms, like replacing ints with longs?

A lot of the time this can happen like e.g.:

	char *foo = inet_ntoa(bar);

...and the prototype for inet_aton() isn't in scope, thus causing the
warning because functions implicitly return int unless otherwise specified.

 > How was this fixed in the MI NetBSD source when the Alpha port got
 > committed?

It depends on the circumstance... if it's a case of a pointer being cast
to or stored in an integral type, it needs to be a long or a u_long.  Other
times it was an issue of getting prototypes in scope...

Jason R. Thorpe                             
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