Re: STL container of fixed capacity but variable size

From: rwgk (rwgk_at_[hidden])
Date: 2002-01-30 19:39:54

--- In boost_at_y..., "Andrei Alexandrescu" <andrewalex_at_h...> wrote:
> But if you want to have a nice family of containers, you don't 
define one
> for each constraint. Such a proliferation would be undesirable. Why 
add all
> that cruft whn it's not needed? You divide the class along various
> characteristics and you implement them separately.

This sounds interesting.

From your article:

typedef flex_string<
    char,
    std::char_traits<char>,
    std::allocator<char>,
    SmallStringOpt<char, 5, 
        CowString<char, AllocatorStringStorage<char, 
std::allocator<char> > > >
> String;

This is a mouth full. Is there a way to present the
various end-user types in a concise way?

I just tried this:

  template <typename A, typename B>
  struct generic {
    A a;
    B b;
  };

  template <typename A, typename B = int>
  typedef generic<A, B> specific;

EDG245 barfs, as expected. Is there a way to achieve what
this example attempts?

Thanks,
        Ralf