Re: [Boost-users] [parallel graph] error building parallel BGL

Subject: Re: [Boost-users] [parallel graph] error building parallel BGL
From: Steven Watanabe (watanabesj_at_[hidden])
Date: 2013-02-25 11:23:42

AMDG

On 02/25/2013 08:05 AM, Jeremiah Willcock wrote:
> On Mon, 25 Feb 2013, The Maschine wrote:
> 
>> Hi Jeremiah,
>> I can confirm that ParallelBGL that comes with 1.53 compiles.
>> The problem with this one is that when I try to compile the example
>> (again from 1.53) I get this problem:
>>
>> /usr/local/include/boost/graph/distributed/mpi_process_group.hpp:419:28:
>> No viable conversion from
>> 'shared_ptr<boost::graph::distributed::mpi_process_group::impl>' to
>> 'bool'
>>
>> 1) Any ideas?
>> 2) Any location that I can find more examples of the Parallel BGL?
> 
> Where is the example that you are trying from?  The ones in the Boost
> tree all pass for me.  If you write a simple test that just makes a
> Boost shared_ptr<int> and tries to convert it to a bool, does that work
> (even an implicit conversion should work, I think).
> 

I think shared_ptr was recently changed to use

explicit operator bool

in C++11.

In Christ,
Steven Watanabe