[Boost-users] phoenix ostream<< result type wrong

Subject: [Boost-users] phoenix ostream<< result type wrong
From: Hite, Christopher (Christopher.Hite_at_[hidden])
Date: 2011-11-09 14:47:59

I'm using Boost version 1.43, perhaps this has been fixed.

        std::stringstream ss;
        (boost::phoenix::arg_names::arg1<<1<<2<<3)(ss);
        BOOST_CHECK_EQUAL(ss.str(),"123");               // check ss.str() == "123" failed [1 != 123]

I think what's going on is that the shift operator is returning the int and not the stream.  This shouldn't compile, but does:

        int o=(boost::phoenix::arg_names::arg1<<1<<2<<3)(ss);

My use case is a log library which does the actual streaming in non-critical space.

Chris