id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
10282	Compilation error in py_nonblocking.cpp	gonzalobg88@…	Matthias Troyer	"I'm getting the following compilation error on the git master branch on the mpi/src/python/py_nonblocking.cpp when using tip-of-trunk clang and libc++ under MacOs 10.9.4 when compiling in c++11/c++1y modes:

libs/mpi/src/python/py_nonblocking.cpp:166:14: error: no viable conversion from 'optional<(anonymous namespace)::py_call_output_iterator<boost::mpi::status, std::__1::__wrap_iter<boost::mpi::python::request_with_value *> > >' to 'bool'
      return test_all(requests.begin(), requests.end(), 

             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

1 error generated.

Compilation used:

""clang++"" -x c++ -Wl,-flat_namespace -stdlib=libc++ -nostdinc++ -std=c++1y -I/Users/gnzlbg/src/env/include/libcxx -O3 -O3 -finline-functions -Wno-inline -Wall -DBOOST_ALL_NO_LIB=1 -DBOOST_MPI_DYN_LINK=1 -DBOOST_MPI_PYTHON_DYN_LINK=1 -DBOOST_PYTHON_DYN_LINK=1 -DNDEBUG -I""."" -I""/Users/gnzlbg/src/env/include"" -I""/usr/local/Cellar/python/2.7.5/Frameworks/Python.framework/Versions/2.7/include/python2.7"" -c -o ""/Users/gnzlbg/src/env/boost_build/boost/bin.v2/libs/mpi/build/clang-darwin-4.2.1/release/threading-multi/python/py_nonblocking.o"" ""libs/mpi/src/python/py_nonblocking.cpp""

A patch is attached"	Bugs	new	Boost 1.56.0	mpi	Boost Development Trunk	Showstopper