Re: Newbie lambda question

From: Ian (yg-boost-users_at_[hidden])
Date: 2003-06-24 22:00:56

Markus

Thanks for the reply, but no dice. The idea was to use the address of the
current item as a quick and dirty counter modular counter, However this
code:

  std::for_each(begin, end,
              l::_1 = l::ll_static_cast<int>(_1) % 3);

does not take the address but the items value, and unfortunately this:

  std::for_each(begin, end,
              l::_1 = l::ll_static_cast<int>(&_1) % 3);

does not compile. Now I could get a bit more realistic and just code the
thing a bit cleaner like this:

  int x = 0;
  for_each( lookup_, lookup_ + (sizeof(lookup_) / sizeof(unsigned int)),
      _1 = ++var(x) % 3
  );

But that's kinda skirting around the real issue which is, if I can't use
lambda to *directly* replace code that is trivial with a hand written loop,
what chance when the complexity is raised a bit?

Cheers

Ian