Re: [boost] [function] Using boost::function when rtti is not available

Subject: Re: [boost] [function] Using boost::function when rtti is not available
From: David Genest (david.genest_at_[hidden])
Date: 2009-11-26 14:51:15

> hope it helps...:
> http://thread.gmane.org/gmane.comp.lib.boost.devel/194514/focus=195351
> ;)

Hi Domagoj,

I am on xbox 360 with visual 2005, PS3 with SNSystems SNC compiler and gcc compiler v 4.1.1. 

I have tried your implementation and compilation fails at a STATIC_ASSERT: 
BOOST_STATIC_ASSERT( is_stateless<base_empty_handler>::value );

A simple declaration of boost::function<void ()> f; will create this error.

A similar assert happens with SN systems compiler for the PS3.

When I use gcc, there are a slew of errors mostly pertaining to declaration order in function_template.hpp. I am not very familiar with this issue, but have tried to move code around, and defining functions out of class scope. Some errors go away, but there are a lot of compiler problems at least on my machine.

Here is the error on xbox 360:
1>boost-1.40.0\boost/function/function_template.hpp(183) : error C2027: use of undefined type 'boost::STATIC_ASSERTION_FAILURE<x>'
1>        with
1>        [
1>            x=false
1>        ]
1>        boost-1.40.0\boost/function/function_template.hpp(641) : see reference to class template instantiation 'boost::function0<R,PolicyList>' being compiled
1>        with
1>        [
1>            R=void,
1>            PolicyList=boost::default_policies
1>        ]
1>        myFile.cpp(64) : see reference to class template instantiation 'boost::function<Signature>' being compiled
1>        with
1>        [
1>            Signature=void (void)
1>        ]

There were also some trouble when compiling templates that end in ">>" which AFAIK is not fixed on my version of gcc.

Do you know if your changes made boost.function less robust to older compilers ?

D.