[boost] Re: Re: [boost.range] late addition, votes needed

From: Thorsten Ottosen (nesotto_at_[hidden])
Date: 2004-09-15 14:59:46

"Jonathan Turkanis" <technews_at_[hidden]> wrote in message
news:cia4al$nfe$1_at_sea.gmane.org...
|
| "Doug Gregor" <dgregor_at_[hidden]> wrote in message:
|
| >
| > cbegin()/cend() aren't all that useful unless they also work with the
| > standard library containers. If it's never going to happen for the
| > standard containers, why bother putting it into Boost? Something like
| > "as_const(c)" is a totally different story, of course.
|
| Why can't const_begin be implemented as follows (for standard library
| containers):

well, it can...otherwise I wouldn't have made the post. It's similar to
rbegin(a) in the sense that it
only require a.begin()

|      template<typename Range>
|      typename range_const_iterator<X>::type
|      const_begin(Range& rng)
|      {
|          return begin(static_cast<const Range&>(rng));
|      }

this should not be needed, the next is sufficient

|      template<typename Range>
|      typename range_const_iterator<X>::type

X == Range

|      const_begin(const Range& rng)
|      {
|          return begin(rng);
|      }
|

br

Thorsten