Re: [boost] [thread] test_lock* and test_move* failures on trunk

From: Peter Dimov (pdimov_at_[hidden])
Date: 2008-05-21 07:14:50

Markus Schöpflin:
> Hello,
>
> a number of platforms currently fail to compile these tests with an error
> message similar to the following:
>
> cxx: Error: ../boost/thread/pthread/thread.hpp, line 169: more than one
>           instance of overloaded function "boost::bind" matches the 
> argument
>           list: (ambovlfun)
>             function template "boost::bind<R,F,A1>(F, A1)"
>             function template "boost::bind(R (T::*)(), A1)"
>
>
> The code in question reads:
>
>        template <class F,class A1>
>         thread(F f,A1 a1):
>           thread_info(make_thread_info(boost::bind<void>(f,a1)))
>         {
>             start_thread();
>         }

The best fix here is probably

    boost::bind( boost::type<void>(), f, a1 )

> 1) make_thread_info(boost::bind(f,a1))

This will fail when f is a function object without a result_type typedef.

> 2) make_thread_info(boost::bind<void>(mem_fn(f),a1))

This will fail when f is not a member pointer.

It seems that these will be exposed by test_thread_launching. It only misses 
the cases "ordinary function with arguments" and "member pointer".

The alternative syntax should work in all cases; can you please test it?