Re: c++/8237: parse error for legal code - works on intel and solaris compilers

Re: c++/8237: parse error for legal code - works on intel and solaris compilers

[neroden]

Synopsis: parse error for legal code - works on intel and solaris compilers

State-Changed-From-To: suspended->closed
State-Changed-By: neroden
State-Changed-When: Wed Jan  1 06:09:55 2003
State-Changed-Why:
    This compiles cleanly on mainline as of 2003-01-01.  Interestingly, a bunch of the other 'parse errors on simple code', such as the ones documented on the web page, *don't*.
    
    I'm closing this.  I'm also creating the test case g++.dg/parse/parens1.C, which I'll commit
    once it's been reviewed (it might be reasonable to make it simpler).

http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=8237

Re: c++/8237: parse error for legal code - works on intel and solaris compilers

[Phil Edwards]

The following reply was made to PR c++/8237; it has been noted by GNATS.

From: Phil Edwards <phil@jaj.com>
To: joel.zuhars@med.ge.com
Cc: gcc-gnats@gcc.gnu.org
Subject: Re: c++/8237: parse error for legal code - works on intel and solaris compilers
Date: Tue, 15 Oct 2002 20:10:57 -0400

 On Tue, Oct 15, 2002 at 10:51:55PM -0000, joel.zuhars@med.ge.com wrote:
 > >Description:
 > Hello, the following simple code gives a parse error when compiling
 > with g++, but works on both intel and solaris compilers. Is it a bug,
 > or am I just missing something obvious? Thanks for any help.
 
 Go to
 
     http://gcc.gnu.org/bugs.html#known
 
 and scroll all the way down to "parse errors for simple code" for some
 possible workarounds.  As Gabriel says, this should be fixed in the ongoing
 parser rewrite.
 
 -- 
 I would therefore like to posit that computing's central challenge, viz. "How
 not to make a mess of it," has /not/ been met.
                                                  - Edsger Dijkstra, 1930-2002

Re: c++/8237: parse error for legal code - works on intel and solaris compilers

[Gabriel Dos Reis]

The following reply was made to PR c++/8237; it has been noted by GNATS.

From: Gabriel Dos Reis <gdr@integrable-solutions.net>
To: joel.zuhars@med.ge.com
Cc: gcc-gnats@gcc.gnu.org
Subject: Re: c++/8237: parse error for legal code - works on intel and solaris compilers
Date: 16 Oct 2002 01:08:09 +0200

 joel.zuhars@med.ge.com writes:
 
 | Hello, the following simple code gives a parse error when compiling
 | with g++, but works on both intel and solaris compilers. Is it a
 | bug, or am I just missing something obvious? Thanks for any help. 
 | 
 
 [...]
 
 | int main() {
 |   B(A()).form();
 
 Known bug.  See section "Parse errors for "simple" code" at 
 
 	http://gcc.gnu.org/bugs.html#known
 
 -- Gaby

Re: c++/8237: parse error for legal code - works on intel and solaris compilers

[gdr]

Synopsis: parse error for legal code - works on intel and solaris compilers

State-Changed-From-To: open->suspended
State-Changed-By: gdr
State-Changed-When: Tue Oct 15 16:09:35 2002
State-Changed-Why:
    Known bug.  Hopefully solved by the new parser.

http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=8237

c++/8237: parse error for legal code - works on intel and solaris compilers

[joel.zuhars]

>Number:         8237
>Category:       c++
>Synopsis:       parse error for legal code - works on intel and solaris compilers
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          rejects-legal
>Submitter-Id:   net
>Arrival-Date:   Tue Oct 15 15:56:00 PDT 2002
>Closed-Date:
>Last-Modified:
>Originator:     Joel Zuhars
>Release:        gcc version 2.96 20000731 (Red Hat Linux 7.3 2.96-110)
>Organization:
>Environment:
Linux on intel machine
>Description:
Hello, the following simple code gives a parse error when compiling with g++, but works on both intel and solaris compilers. Is it a bug, or am I just missing something obvious? Thanks for any help.

> cat testVec.C
#include <stdio.h>

class A {
public:
  A() { printf("Acon\n"); }
  };

class B {
public:
  B(A a) { printf("BAcon\n"); }
  void form() { printf("Bform\n"); }
  };

int main() {
  B(A()).form();
}

brutus [joel]: /home/joel/tvec[21]
> g++ testVec.C -o TestVec
testVec.C: In function `int main ()':
testVec.C:16: parse error before `.'

brutus [joel]: /home/joel/tvec [22]         
> icc testVec.C -o TestVec

testVec.C

brutus [joel]: /home/joel/tvec [23]
> TestVec 
Acon
BAcon
Bform
     
brutus [joel]: /home/joel/tvec [24]
> g++ -v
Reading specs from /usr/lib/gcc-lib/i386-redhat-linux/2.96/specs
gcc version 2.96 20000731 (Red Hat Linux 7.3 2.96-110)

>How-To-Repeat:

>Fix:
use "A a; B(a).form();" instead of "B(A()).form();"
or add constructor A(int i) and use "B(A(1)).form();"
>Release-Note:
>Audit-Trail:
>Unformatted: