A comment in boost/iterator.hpp and boost/detail/iterator.hpp mentions that
the files are obsolete and will be deprecated. All they do is pull some types
from namespace std into namespace boost.
The new version should provide the expected behavior in the case (prior(v.end(), v.size()) == v.begin()). It should also work with integers now, as was originally intended by David Abrahams. Added tests to verify these new use cases.
boost/iterator.hpp was implicitly dragged in via boost/operators.hpp, from which it was removed in cb6500161b. It's not needed anyway, all it does is map boost::iterator to std::iterator.
Some (strict) C++03 compilers (e.g. `gcc -std=c++03`) reject
'reference-to-reference' in the template and typedef which described
in CWG DR106 [1].
In such situations, iterator_facade rejects reference type as a value
type and some special iterators will become ill-formed:
the test libs/range/test/join.hpp might be descriptive.
[1] http://www.open-std.org/Jtc1/sc22/wg21/docs/cwg_defects.html#106
Signed-off-by: Kohei Takahashi <flast@flast.jp>
Also added an import into the boost::detail namespace for backward compatibility with Boost.Range. Added a pure_iterator_traversal metafunction that automatically converts iterator category as well.
This change excludes boost:: and boost::detail:: namespaces from ADL for unqualified function calls (e.g. algorithms). This reduces the possibility of name clashes with other libraries and user's code. One of the effects should be fixing test failures on gcc 4.2 and 4.4 due to clashed with Boost.TypeTraits.
Also some of the functions marked with inline keyword.
Reverted: 2e099caceb9..21102938e8ccb
I'm going to reapply some of them soon, but it's easier to revert them
all first, as there are conflicts. Also the number of changes that were
inserted since then, mean that there would be a huge gap between related
changes.
- The logic for determining the result of iterator_facade::operator[] has been factored out into a separate detail header in preparation for its potential use in iterator_range to avoid iterator_range::operator[] from returning a reference to a temporary.
[SVN r80901]
