[Bug c++/24577] New: diagnostic informative note labelled "error"

[Bug c++/24577] New: diagnostic informative note labelled "error"

[igodard at pacbell dot net]

void foo(){ int a = b; }

gets you:

foo.cc: In function `void foo()':
foo.cc:1: error: `b' undeclared (first use this function)
foo.cc:1: error: (Each undeclared identifier is reported only once for each
function it appears in.)

Other informative notes are labeled "note:". Because this is labelled "error",
scripts that scan generated compiler output to count errors get wrong counts.

Ivan


-- 
           Summary: diagnostic informative note labelled "error"
           Product: gcc
           Version: 3.4.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: igodard at pacbell dot net


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24577

[Bug c/24577] diagnostic informative note labelled "error"

[pinskia at gcc dot gnu dot org]

------- Comment #1 from pinskia at gcc dot gnu dot org  2005-10-28 23:44 -------
This is only a C bug now:
t.c:1: error: 'b' undeclared (first use in this function)
t.c:1: error: (Each undeclared identifier is reported only once
t.c:1: error: for each function it appears in.)

Confirmed, the C++ front-end now gives
t.c: In function 'void foo()':
t.c:1: error: 'b' was not declared in this scope


-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
          Component|c++                         |c
     Ever Confirmed|0                           |1
           Keywords|                            |diagnostic
   Last reconfirmed|0000-00-00 00:00:00         |2005-10-28 23:44:06
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24577

[Bug c/24577] diagnostic informative note labelled "error"

[pinskia at gcc dot gnu dot org]

-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Severity|normal                      |trivial


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24577

[Bug c/24577] diagnostic informative note labelled "error"

[manu at gcc dot gnu dot org]

------- Comment #2 from manu at gcc dot gnu dot org  2007-01-26 15:34 -------
So what is the correct solution? Use inform or notice? Or don't show the
message as C++ does?


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24577

[Bug c/24577] diagnostic informative note labelled "error"

[manu at gcc dot gnu dot org]

------- Comment #3 from manu at gcc dot gnu dot org  2007-01-31 23:38 -------
(In reply to comment #0)
> 
> Other informative notes are labeled "note:". Because this is labelled "error",
> scripts that scan generated compiler output to count errors get wrong counts.
> 

Ivan, the fix is trivial. In c-decl.c (undeclared_variable), replace the call
to "error" with a call to "inform". However, it may require updating testcases
and the maintainers may prefer to remove the message altogether. Since this is
a minor issue, it is not strange that people prefer to do something else. 

If you are interested in seeing this fixed, this is a good opportunity to learn
how to contribute to GCC, since the patch is trivial, the only difficulty is
the whole process, that may seem complex at the beginning. You can find more
information in http://gcc.gnu.org/contribute.html and ask any question about
contributing in gcc@gcc.gnu.org.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24577

[Bug c/24577] diagnostic informative note labelled "error"

[igodard at pacbell dot net]

------- Comment #4 from igodard at pacbell dot net  2007-02-01 01:03 -------
My employer does not permit employees to contribute to open source projects due
to IP concerns. What's your second choice?


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24577

[Bug c/24577] diagnostic informative note labelled "error"

[manu at gcc dot gnu dot org]

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------- Comment #5 from manu at gcc dot gnu dot org  2010-02-26 16:56 -------
Subject: Bug 24577

Author: manu
Date: Fri Feb 26 16:56:09 2010
New Revision: 157095

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=157095
Log:
2010-02-26  Manuel López-Ibáñez  <manu@gcc.gnu.org>

        PR c/24577
        * c-decl.c (undeclared_variable): Use an informative note.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/c-decl.c


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24577

[Bug c/24577] diagnostic informative note labelled "error"

[manu at gcc dot gnu dot org]

------- Comment #6 from manu at gcc dot gnu dot org  2010-02-26 17:03 -------
(In reply to comment #4)
> My employer does not permit employees to contribute to open source projects due
> to IP concerns. What's your second choice?

You could lobby your employer to change their policy. I am sure there are other
free software users in your company.

Or you can get paid support from Red Hat, Codesourcery or other GCC support
service, and ask them to fix the bugs for you.

Or you can wait until a friendly volunteer comes around and fixes it gratis for
you.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24577

[Bug c/24577] diagnostic informative note labelled "error"

[manu at gcc dot gnu dot org]

------- Comment #8 from manu at gcc dot gnu dot org  2010-02-26 17:04 -------
Thanks for the report in any case. This will be FIXED in GCC 4.5


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24577

[Bug c/24577] diagnostic informative note labelled "error"

[manu at gcc dot gnu dot org]

------- Comment #7 from manu at gcc dot gnu dot org  2010-02-26 17:03 -------
(In reply to comment #4)
> My employer does not permit employees to contribute to open source projects due
> to IP concerns. What's your second choice?

You could lobby your employer to change their policy. I am sure there are other
free software users in your company.

Or you can get paid support from Red Hat, Codesourcery or other GCC support
service, and ask them to fix the bugs for you.

Or you can wait until a friendly volunteer comes around and fixes it gratis for
you.


-- 

manu at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |FIXED


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24577

[Bug c/24577] diagnostic informative note labelled "error"

[manu at gcc dot gnu dot org]

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------- Comment #9 from manu at gcc dot gnu dot org  2010-02-27 17:48 -------
Subject: Bug 24577

Author: manu
Date: Sat Feb 27 17:48:02 2010
New Revision: 157111

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=157111
Log:
2010-02-27  Manuel López-Ibáñez  <manu@gcc.gnu.org>

        PR c/24577
        PR c/43192
        * gcc.dg/pr8927-1.c: Match new note.
        * gcc.dg/990506-0.c: Likewise.
        * gcc.dg/gomp/flush-2.c: Likewise.
        * gcc.dg/gomp/atomic-5.c: Likewise.
        * gcc.dg/gomp/pr34607.c: Likewise.
        * gcc.dg/pr35746.c: Likewise.
        * gcc.dg/cpp/pragma-1.c: Likewise.
        * gcc.dg/cpp/pragma-2.c: Likewise.
        * gcc.dg/pr41842.c: Likewise.
        * gcc.dg/noncompile/20040629-1.c: Likewise.
        * objc.dg/private-1.m: Likewise.

Modified:
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/testsuite/gcc.dg/990506-0.c
    trunk/gcc/testsuite/gcc.dg/cpp/pragma-1.c
    trunk/gcc/testsuite/gcc.dg/cpp/pragma-2.c
    trunk/gcc/testsuite/gcc.dg/gomp/atomic-5.c
    trunk/gcc/testsuite/gcc.dg/gomp/flush-2.c
    trunk/gcc/testsuite/gcc.dg/gomp/pr34607.c
    trunk/gcc/testsuite/gcc.dg/noncompile/20040629-1.c
    trunk/gcc/testsuite/gcc.dg/pr35746.c
    trunk/gcc/testsuite/gcc.dg/pr41842.c
    trunk/gcc/testsuite/gcc.dg/pr8927-1.c
    trunk/gcc/testsuite/objc.dg/private-1.m


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24577