Passing a vector to a function expecting an array

[peter koch]

The two-function solution is similar to Boost.Range. Taking it a step
further:

  pointer_range <int> r (v);
  foo (r.begin (), r.end ());

This fully encapsulates the empty case.

I understand that, but in my opinion data is a low-level means for
interfacing to C-functions. There is no need to provide "full"
functionality in this area.

/Peter