Re: [boost] [Heaps] Compiler error: ‘optional’ was not declared in this scope

Subject: Re: [boost] [Heaps] Compiler error: ‘optional’ was not declared in this scope
From: Tim Blechmann (tim_at_[hidden])
Date: 2011-06-08 03:43:07

> > I'm trying to do some simple tests with the proposed Heaps library, but
> 
> > I get a mountain of compiler errors that start like this:
> Well I've got it to work by changing priority_queue.hpp from this:
> 
> typedef parameter::parameters<optional<tag::allocator>,
>                               optional<tag::compare>,
>                               optional<tag::stable>
> 
>                              > priority_queue_signature;
> 
> to this:
> 
> typedef parameter::parameters<boost::parameter::optional<tag::allocator>,
>                               boost::parameter::optional<tag::compare>,
>                               boost::parameter::optional<tag::stable>
> 
>                              > priority_queue_signature;
> 
> I really don't know what's going on there.

haven't seen that before ... which compiler? might be a good idea to change this 
in general ...

tim