From owner-freebsd-standards  Tue May 28 20:40:59 2002
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Date: Tue, 28 May 2002 23:40:53 -0400 (EDT)
From: Garrett Wollman <wollman@khavrinen.lcs.mit.edu>
Message-Id: <200205290340.g4T3erxr010138@khavrinen.lcs.mit.edu>
To: "J. Mallett" <jmallett@FreeBSD.ORG>
Cc: standards@FreeBSD.ORG
Subject: Re: Q&D implementation of dlfunc()
In-Reply-To: <20020528195236.A66528@FreeBSD.ORG>
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<<On Tue, 28 May 2002 19:52:36 -0700, "J. Mallett" <jmallett@FreeBSD.ORG> said:

> rv = (uintptr_t)dlsym(handle, symbol);

For the same reason as you can't cast from a data pointer to a
function pointer, there's no guarantee that you can cast from a
uintptr_t (if such a type even exists) to a function pointer.  Since
we're depending on all pointers having the same representation, I'd
rather make it explicit.

-GAWollman


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