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Updated pointee and indirect_reference so that pointee represents the

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immutability of the pointed-to type via const qualification.  The
pointee of a proxy-based iterator will be const qualified unless a
mutable reference to the value_type can be bound to the returned
proxy.

Added a test for pointee

Fixed iterator_facade so operator[] result type computation didn't
cause a problem with abstract types.

Updated iterator_facade operator[] docs for accuracy.

Allowed Borland to simply fail the indirect_iterator_member_types test
because of its lame const-dropping, instead of trying to work around
it.


[SVN r21579]
This commit is contained in:
Dave Abrahams
2004-01-11 00:03:09 +00:00
parent dd5fb425fa
commit 6c62f31f0a
7 changed files with 150 additions and 47 deletions
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11
doc/iterator_facade_ref.rst
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@@ -245,10 +245,13 @@ __ `operator arrow`_
*unspecified* ``operator[](difference_type n) const;``
:Returns: an object convertible to ``reference`` and holding a copy
*p* of ``*static_cast<Derived const*>(this) + n`` such that, for a constant object ``v`` of type
``value_type``, ``(*static_cast<Derived const*>(this))[n] = v`` is equivalent
to ``p = v``.
:Returns: an object convertible to ``value_type``. For constant
objects ``v`` of type ``value_type``, and ``n`` of type
``difference_type``, and reference ``p`` equal to
``*static_cast<Derived const*>(this)``, ``(*this)[n] = v`` is
equivalent to ``*(p+ n) = v``, and ``static_cast<value_type
const&>((*this)[n])`` is equivalent to
``static_cast<value_type const&>(*(p+n))``