From: Tom Tromey <tromey@redhat.com>
To: "Pierre Muller" <muller@ics.u-strasbg.fr>
Cc: "'Pedro Alves'" <pedro@codesourcery.com>, <gdb@sourceware.org>,
"'Eli Zaretskii'" <eliz@gnu.org>,
<dave.korn.cygwin@googlemail.com>, <msnyder@vmware.com>
Subject: Re: A strange gcc behavior, and an argument against -Wno-unused
Date: Tue, 13 Oct 2009 16:42:00 -0000 [thread overview]
Message-ID: <m3skdnkzzu.fsf@fleche.redhat.com> (raw)
In-Reply-To: <05bc01ca4c1a$7110fd80$5332f880$@u-strasbg.fr> (Pierre Muller's message of "Tue, 13 Oct 2009 17:32:57 +0200")
>>>>> "Pierre" == Pierre Muller <muller@ics.u-strasbg.fr> writes:
Pierre> Isn't this going to make troubles if
Pierre> a standard function is defined as a pascal procedure
Pierre> i. e. with return type (void) in most implementation
Pierre> but returning something else on some "exotic" system?
From what I can tell, the warning only applies to statements with no
side effects, and function calls are considered to have side effects.
The GCC documentation is not extremely clear on this point, I wrote a
test program to try it out.
Tom
next prev parent reply other threads:[~2009-10-13 16:42 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-10-10 0:48 Michael Snyder
2009-10-10 2:24 ` Dave Korn
2009-10-10 16:45 ` Pedro Alves
2009-10-10 18:08 ` Eli Zaretskii
2009-10-10 18:24 ` Pedro Alves
2009-10-10 18:25 ` Tom Tromey
2009-10-10 18:37 ` Eli Zaretskii
2009-10-10 18:50 ` Pedro Alves
2009-10-10 19:46 ` Eli Zaretskii
2009-10-13 14:09 ` Pedro Alves
2009-10-13 15:33 ` Pierre Muller
2009-10-13 16:42 ` Tom Tromey [this message]
2009-10-13 15:48 ` Tom Tromey
2009-10-14 19:45 ` Pedro Alves
2009-10-10 18:30 ` Tom Tromey
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