[Bug c++/42346] New: darwin instantiation oddity

[bkoz at gcc dot gnu dot org]

The attached pre-processed file compiles fine on i686/x86_64 linux, but not on
darwin. Compiler sources are the same for both, 20091206 ish.

In addition, this passes on Darwin with -O1, but not with -O2.

Darwin error:
ames:testsuite benjamin$ ./compile-map.sh 
In file included from
/Users/benjamin/bld/gcc/x86_64-apple-darwin10.2.0/libstdc++-v3/include/bits/move.h:38:0,
                 from
/Users/benjamin/bld/gcc/x86_64-apple-darwin10.2.0/libstdc++-v3/include/bits/stl_pair.h:60,
                 from
/Users/benjamin/bld/gcc/x86_64-apple-darwin10.2.0/libstdc++-v3/include/bits/stl_algobase.h:66,
                 from
/Users/benjamin/bld/gcc/x86_64-apple-darwin10.2.0/libstdc++-v3/include/bits/stl_tree.h:62,
                 from
/Users/benjamin/bld/gcc/x86_64-apple-darwin10.2.0/libstdc++-v3/include/map:60,
                 from
/Users/benjamin/src/gcc/libstdc++-v3/testsuite/23_containers/map/requirements/exception/basic.cc:22:
/Users/benjamin/bld/gcc/x86_64-apple-darwin10.2.0/libstdc++-v3/include/type_traits:
In instantiation of 'const bool
std::__is_convertible_helper<__gnu_cxx::throw_value_limit,
__gnu_cxx::throw_value_limit, false>::__value':
/Users/benjamin/bld/gcc/x86_64-apple-darwin10.2.0/libstdc++-v3/include/type_traits:273:5:
  instantiated from 'std::is_convertible<__gnu_cxx::throw_value_limit,
__gnu_cxx::throw_value_limit>'
/Users/benjamin/src/gcc/libstdc++-v3/testsuite/util/exception/safety.h:97:31:  
instantiated from here
/Users/benjamin/bld/gcc/x86_64-apple-darwin10.2.0/libstdc++-v3/include/type_traits:263:71:
error: no matching function for call to
'__gnu_cxx::throw_value_limit::throw_value_limit(__gnu_cxx::throw_value_limit)'
compilation terminated due to -Wfatal-errors.


This error doesn't make sense. There's a copy ctor that's visible. Clearly
there is something amiss!


-- 
           Summary: darwin instantiation oddity
           Product: gcc
           Version: 4.5.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: bkoz at gcc dot gnu dot org
 GCC build triplet: x86_64-apple-darwin10.2.0
  GCC host triplet: x86_64-apple-darwin10.2.0
GCC target triplet: x86_64-apple-darwin10.2.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42346