[Bug c++/42067] New: Misleading error message for misusing a type

[Bug c++/42067] New: Misleading error message for misusing a type

[jlquinn at optonline dot net]

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The following small test drove me crazy and had me convinced that gcc 4.4 had
regressed.  I had the C++ spec out too trying to understand exactly how string
is declared until I eventually saw the actual problem, which is that the first
parameter is named 'string'.

I'm not sure exactly how to improve the error message here.  4.3 and earlier
accept this code.


#include <string>
using std::string;
int fn(string& string, string& head);

g++-4.4 -c junk.C
junk.C:3: error: ‘string’ is not a type


-- 
           Summary: Misleading error message for misusing a type
           Product: gcc
           Version: 4.4.2
            Status: UNCONFIRMED
          Severity: enhancement
          Priority: P3
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: jlquinn at optonline dot net


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42067

[Bug c++/42067] Misleading error message for misusing a type

[pinskia at gcc dot gnu dot org]

------- Comment #1 from pinskia at gcc dot gnu dot org  2009-11-16 17:02 -------
Well you are not misusing a type here really.  
The second string causes string to be a variable name, so the error message is
correct as it is no longer a type at that point.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42067

[Bug c++/42067] Misleading error message for misusing a type

[pinskia at gcc dot gnu dot org]

------- Comment #2 from pinskia at gcc dot gnu dot org  2009-11-16 17:04 -------
Comeau online tester gives:

"ComeauTest.c", line 4: error: parameter "string" is not a type name
  int fn(string& string, string& head);

Which is only slightly better.

The trunk gives a column number:
t.cc:3:24: error: 'string' is not a type

Which shows where the problem is.


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pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |diagnostic


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42067

[Bug c++/42067] Misleading error message for misusing a type

[paolo.carlini at oracle dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42067

Paolo Carlini <paolo.carlini at oracle dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
                 CC|gcc-bugs at gcc dot gnu.org        |
      Known to work|                            |4.8.0, 4.9.0
         Resolution|---                         |FIXED

--- Comment #3 from Paolo Carlini <paolo.carlini at oracle dot com> ---
I think it's safe to say that this is fixed.