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From: "haoxintu at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/96045] New: Wrong line and column diagnostic message in a
 class template instantiation
Date: Fri, 03 Jul 2020 11:05:51 +0000
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X-Bugzilla-Product: gcc
X-Bugzilla-Component: c++
X-Bugzilla-Version: 11.0
X-Bugzilla-Keywords: diagnostic
X-Bugzilla-Severity: normal
X-Bugzilla-Who: haoxintu at gmail dot com
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D96045

            Bug ID: 96045
           Summary: Wrong line and column diagnostic message in a class
                    template instantiation
           Product: gcc
           Version: 11.0
            Status: UNCONFIRMED
          Keywords: diagnostic
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: haoxintu at gmail dot com
  Target Milestone: ---

This simple code, bug.cc, GCC-trunk can not emit the right diagnostic
information.

$cat bug.cc
template <class> class A {};
struct A <int>=20

$g++ -c bug.cc
bug.cc:3: error: expected unqualified-id at end of input

Noted that the number 3 is not a line number nor a column number.

While in Clang
$clang++ -c bug.cc
bug.cc:2:16: error: expected unqualified-id
struct A <int>=20
               ^
1 error generated.

$g++ --version
g++ (GCC) 11.0.0 20200630 (experimental)
Copyright (C) 2020 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.=