[xsd-users] using <algorithm>

[Boris Kolpackov]

Jean-Francois,

Jean-Francois Dube <jf at magnu.polymtl.ca> writes:

> Is there a way to use the standard <algorithm> library with sequence
> iterators?
>
> For intance, I could use the find_if() algorithm on a sequence of books :
>
> find_if ( begin, end, hasISBN( 1234 ) )
>
> In this case, it would emulate the selector mecanism.

There are some parts missing in the iterator implementation in 1.9.0.
I've fixed it on my workspace and put out a patch:

http://codesynthesis.com/~boris/tmp/xsd-1.9.0-algorithm-extras.tar.bz2

Just replace containers.hxx in xsd/cxx/tree with the one in the archive.
This will also appear in the next release.

With this fix, the following example works fine for me:

struct has_isbn
{
  has_isbn (library::isbn v)
      : v_ (v)
  {
  }

  bool
  operator() (library::book const& b) const
  {
    return b.isbn () == v_;
  }

private:
  library::isbn v_;
};

catalog::book::iterator i (
  std::find_if (
    l->book ().begin (), l->book ().end (), has_isbn (679760806)));



Thanks for reporting this!

-boris
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