RE: [boost] Re: MPL usage for code generation

From: Aleksey Gurtovoy (agurtovoy_at_[hidden])
Date: 2003-01-24 10:46:10

Joel de Guzman wrote:
> Here's the Phoenix version:
> 
>     struct my_function_
>     {
> 
>         template <typename Arg1T, typename Arg2T>
>         struct result { typedef void type; };
> 
>         template< typename U >
>         void operator()(std::string const& text, U)
>         {
>             // ...
>         }
> 
>     };
> 
>     function<my_function_> my_function; // here!
> 
> Then:
> 
>     mpl::for_each< my_types >(my_function(text, _1));

This is way too cool! Now we only need to provide such free-standing forms
of all STL algorithms/member functions, and we will be living in a different
world:

    std::vector<std::string> v;

    push_back(v, "text"); // plain call    
    for_each(input, push_back(v, _1)); // currying
    for_each(v, for_each(_1, print_char)); // more currying
    // etc.!

Breathtaking, IMO.

Aleksey