[Bug c++/50810] c++0x-compat does not warn about narrowing conversions

[paolo.carlini at oracle dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50810

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |jason at gcc dot gnu.org,
                   |                            |paolo.carlini at oracle dot
                   |                            |com, redi at gcc dot
                   |                            |gnu.org

--- Comment #2 from Paolo Carlini <paolo.carlini at oracle dot com> 2011-10-21 22:50:00 UTC ---
Note, this changed between 4.6 and 4.7 from permerror to pedwarn.

This said, check_narrowing is called by digest_init_r like this:

      if (cxx_dialect != cxx98 && nested)
    check_narrowing (type, init);

thus probably it would be easy to call it also when cxx_dialect is cxx98 &&
warn_cxx0x_compat and then, at the end, have something like:

  if (!ok)
    {
      if (cxx_dialect != cxx98)
        pedwarn (input_location, OPT_Wnarrowing, "narrowing conversion of %qE "
            "from %qT to %qT inside { }", init, ftype, type);
      else
        warning (OPT_Wc__0x_compat, "narrowing conversion of %qE "
            "from %qT to %qT inside { }", init, ftype, type);
    }

maybe with a slightly different message in the -Wc++0x-compat case.

Jason?