Re: [boost] Failures for GCC 4.4.1 with gnu++0x

Subject: Re: [boost] Failures for GCC 4.4.1 with gnu++0x
From: Beman Dawes (bdawes_at_[hidden])
Date: 2009-09-05 08:25:10

On Thu, Sep 3, 2009 at 11:27 AM, Beman Dawes<bdawes_at_[hidden]> wrote:
> Thanks to Noel Belcourt, the trunk Sandia-gcc tests show results
> side-by-side for gcc 4.4.1 without and with C++0x features enabled.
>
> See http://beta.boost.org/development/tests/trunk/developer/summary.html
>
> Several Boost libraries are passing without 4.4.1 C++0x features but failing
> with them:
>
> http://beta.boost.org/development/tests/trunk/developer/assign.html
> ...
>

I missed iostreams. The problem seems to be a bug in gcc. This program:

#include <utility>

int main()
{
  std::pair<int, int*> x(0,0);
  return 0;
}

compiles without -std=gnu++0x, but with -std=gnu++0x gets an error:

c:\gcc\bin\../lib/gcc/i386-pc-mingw32/4.4.0/../../../../include/c++/4.4.0/bits/stl_pair.h:
In constr
uctor 'std::pair<_T1, _T2>::pair(_U1&&, _U2&&) [with _U1 = int, _U2 =
int, _T1 = int, _T2 = int*]':
cvt-0-to-ptr.cpp:5:   instantiated from here
c:\gcc\bin\../lib/gcc/i386-pc-mingw32/4.4.0/../../../../include/c++/4.4.0/bits/stl_pair.h:90:
error:
 invalid conversion from 'int' to 'int*'

I tried to find this in gcc bugzilla, but didn't come up with
anything. Is anyone else have any knowledge of this problem?

--Beman