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]
Other format:	[Raw text]

Re: [tree-ssa] Why are bools cast to int in conditionals?

From: "Joseph S. Myers" <jsm at polyomino dot org dot uk>
To: Joe Buck <Joe dot Buck at synopsys dot COM>
Cc: Paul Koning <pkoning at equallogic dot com>, dann at godzilla dot ics dot uci dot edu, gcc at gcc dot gnu dot org
Date: Thu, 22 Apr 2004 17:39:09 +0000 (UTC)
Subject: Re: [tree-ssa] Why are bools cast to int in conditionals?
References: <200404212300.i3LN00GK015176@scanner2.ics.uci.edu><Pine.LNX.4.58.0404220103560.20806@digraph.polyomino.org.uk><200404220218.i3M2ICGK021606@scanner2.ics.uci.edu><Pine.LNX.4.58.0404220853070.23132@digraph.polyomino.org.uk><16519.53134.9000.566295@gargle.gargle.HOWL> <20040422103727.A7957@synopsys.com>

On Thu, 22 Apr 2004, Joe Buck wrote:

> This is a case where C and C++ differ.  The type of the != operator is
> bool in C++.

Fold must of course preserve the type of the result of !=.  That doesn't 
mean it can't narrow the operands.

-- 
Joseph S. Myers
jsm@polyomino.org.uk

References:
- [tree-ssa] Why are bools cast to int in conditionals?
  - From: Dan Nicolaescu
- Re: [tree-ssa] Why are bools cast to int in conditionals?
  - From: Joseph S. Myers
- Re: [tree-ssa] Why are bools cast to int in conditionals?
  - From: Dan Nicolaescu
- Re: [tree-ssa] Why are bools cast to int in conditionals?
  - From: Joseph S. Myers
- Re: [tree-ssa] Why are bools cast to int in conditionals?
  - From: Paul Koning
- Re: [tree-ssa] Why are bools cast to int in conditionals?
  - From: Joe Buck

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