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From: Paolo Bonzini <bonzini@gnu.org>
To: Ian Lance Taylor <iant@google.com>
Cc: Ralf Wildenhues <Ralf.Wildenhues@gmx.de>,
	binutils@sourceware.org,  gdb-patches@sourceware.org
Subject: Re: [PATCH] Fix PR bootstrap/42798
Date: Fri, 04 Jun 2010 15:04:00 -0000	[thread overview]
Message-ID: <4C0915EF.6030906@gnu.org> (raw)
In-Reply-To: <mcrocfqaloq.fsf@dhcp-172-17-9-151.mtv.corp.google.com>

On 06/04/2010 04:59 PM, Ian Lance Taylor wrote:
> With regard to the gold change.  What will happen if the system header
> files provide only a declaration
>      char *basename(const char *)
> ?

I think it works, because C casts are allowed to do anything they want 
to constness.

Certainly both of the following compile fine:

char *f(const char *x) { }
typedef char *(*funtype) (char *g);
funtype gg = (char * (*) (char *)) f;


char *f(char *x) { }
typedef char *(*funtype) (const char *g);
funtype gg = (char * (*) (const char *)) f;


Paolo


  reply	other threads:[~2010-06-04 15:04 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20100601204405.GA1170@gmx.de>
     [not found] ` <AANLkTim4-8VpK907cHTIcT2ELeZEgOBpLf0FUJmpPCJN@mail.gmail.com>
     [not found]   ` <20100602111845.GA16161@ins.uni-bonn.de>
     [not found]     ` <4C064B77.3020207@gnu.org>
2010-06-03  6:33       ` Ralf Wildenhues
2010-06-03  6:59         ` Ralf Wildenhues
2010-06-04 14:59           ` Ian Lance Taylor
2010-06-04 15:04             ` Paolo Bonzini [this message]
2010-06-04 18:44               ` Ralf Wildenhues
2010-06-06 11:28             ` Ralf Wildenhues
2010-06-06 21:42               ` Ian Lance Taylor
2010-06-07  6:11                 ` Ralf Wildenhues
2010-06-07 14:04                   ` Ian Lance Taylor
2010-06-07 20:24                     ` Ralf Wildenhues

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