Re: [Boost-Users] compose, bind and a doubled ref problem

From: Peter Dimov (pdimov_at_[hidden])
Date: 2002-12-04 08:44:12

From: "Markus Werle" <yg-boost-users_at_[hidden]>
> The code below compiles fine if You return to Value
> semantics and replace "const Vector&" with "Vector".
> But with reference to vector two compilers (Intel-7.0 
> and gcc-3.2.1) "throw" with a "reference to reference" error.
> 
> How can I achieve what I want here?

[...]

> #include "boost/bind.hpp"
> #include "boost/compose.hpp"

It's simple, don't use compose. :-)

[...]

>   function<double (const Vector&)> l =
>     compose_f_gx_hx(Adder, h1, h2);

Change to

bind(Adder, bind(h1, _1), bind(h2, _1));