Boost C++ Libraries: Ticket #5626: Compilation error when using boost::phoenix with range adaptors

Tue, 21 Jun 2011 15:35:55 GMT

Ooops, I made a mistake, the failing example is:

#include <iostream>
#include <boost/range.hpp>
#include <boost/range/irange.hpp>
#include <boost/range/adaptors.hpp>
#include <boost/phoenix.hpp>
using namespace boost::phoenix::arg_names;
using namespace boost::adaptors;
int main()
{
  std::cout << *boost::begin(boost::irange(0,5) | transformed( arg1 ));
}

status, version changed; resolution set

Thomas Heller — Wed, 29 Jun 2011 14:21:19 GMT

status new → closed
version Boost Release Branch → Boost Development Trunk
resolution → fixed

It seems that result_of<arg1(int)> returns int& instead of int.

Good observation. This shouldn't be the case. The right return type is "int const &" in that case. I commit the necessary fix to trunk. And will ask the release managers to merge to release so the release won't suffer this defect. However, it is quite late in the release process, so chances are that it won't make it.

As a small workaround, I suggest the following:

boost::irange(0,5) | transformed( val( arg1 ) )

Thanks for your report.

milestone changed

Thomas Heller — Wed, 29 Jun 2011 16:14:43 GMT

milestone To Be Determined → Boost 1.47.0

Wed, 29 Jun 2011 16:23:20 GMT

Thanks for the quick fix !

Thomas Heller — Thu, 30 Jun 2011 08:10:40 GMT

Replying to Nicolas Savoire <nicos@…>:

Thanks for the quick fix !

No problem. The tests on the release branch look good. The fix will be part of 1.47.0

version changed

Thomas Heller — Wed, 13 Jul 2011 07:55:07 GMT

version Boost Development Trunk → Boost 1.47.0