This is the mail archive of the gcc@gcc.gnu.org mailing list for the GCC project.

Index Nav:	[Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav:	[Date Prev] [Date Next]	[Thread Prev] [Thread Next]

Re: GCC's statement expression extension

To: Mark Mitchell <mark at codesourcery dot com>
Subject: Re: GCC's statement expression extension
From: Richard Henderson <rth at cygnus dot com>
Date: Wed, 26 Jul 2000 21:24:40 -0700
Cc: law at cygnus dot com, jsm28 at cam dot ac dot uk, gcc at gcc dot gnu dot org
References: <Pine.SOL.4.21.0007220011570.29830-100000@orange.csi.cam.ac.uk> <12879.964370396@upchuck> <20000723095222D.mitchell@codesourcery.com>

On Sun, Jul 23, 2000 at 09:52:22AM -0700, Mark Mitchell wrote:
> We should try to convince the glibc people that statement-expressions
> are bad, since they are the heaviest users of this hack.

There are quite a few in the Linux kernel as well.

In addition, glibc uses this extension for things that simply cannot be
done with inline functions.  See <tgmath.h>.  Note that the types of
these expressions are dependant on the types of the arguments.  This is
otherwise impossible in C.  Also note that these functions are defined
by C99 -- I suppose the committee was thinking that these would be
compiler builtins or something.

r~

Follow-Ups:
- Re: GCC's statement expression extension
  - From: Mark Mitchell

References:
- GCC's statement expression extension
  - From: Joseph S. Myers
- Re: GCC's statement expression extension
  - From: Jeffrey A Law
- Re: GCC's statement expression extension
  - From: Mark Mitchell

Index Nav:	[Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav:	[Date Prev] [Date Next]	[Thread Prev] [Thread Next]