[Bug c++/33378] New: Recent gcc 4.3 snapshots think comparison operators are ambiguous

["bero at arklinux dot org" <gcc-bugzilla at gcc dot gnu dot org>]

The attached test case has 2 code branches (#ifdef BREAKME and #ifndef BREAKME)
that are treated as identical in all prior gcc versions.

4.3 snapshots barf with:

gcc-4.3-testcase.cpp: In function 'int main()':
gcc-4.3-testcase.cpp:28: error: ISO C++ says that these are ambiguous, even
though the worst conversion for the first is better than the worst conversion
for the second:
gcc-4.3-testcase.cpp:14: note: candidate 1: bool operator==(const junk&, const
char*)
gcc-4.3-testcase.cpp:7: note: candidate 2: bool junk::operator==(const foo&)
const


since even in the BREAKME version, no implicit casting is involved, I tend to
think older gcc versions are right.


-- 
           Summary: Recent gcc 4.3 snapshots think comparison operators are
                    ambiguous
           Product: gcc
           Version: 4.3.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: bero at arklinux dot org
 GCC build triplet: i586-pc-linux-gnu
  GCC host triplet: i586-pc-linux-gnu
GCC target triplet: i586-pc-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33378