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@ -3,11 +3,11 @@
|
||||
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
|
||||
<head>
|
||||
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
|
||||
<meta name="generator" content="Docutils 0.5: http://docutils.sourceforge.net/" />
|
||||
<meta name="generator" content="Docutils 0.11: http://docutils.sourceforge.net/" />
|
||||
<title>Iterator Traits</title>
|
||||
<meta name="author" content="David Abrahams" />
|
||||
<meta name="organization" content="Boost Consulting" />
|
||||
<meta name="date" content="2006-09-11" />
|
||||
<meta name="date" content="$Date$" />
|
||||
<meta name="copyright" content="Copyright David Abrahams 2004." />
|
||||
<link rel="stylesheet" href="../../../rst.css" type="text/css" />
|
||||
</head>
|
||||
@ -25,7 +25,7 @@
|
||||
<tr><th class="docinfo-name">Organization:</th>
|
||||
<td><a class="first last reference external" href="http://www.boost-consulting.com">Boost Consulting</a></td></tr>
|
||||
<tr><th class="docinfo-name">Date:</th>
|
||||
<td>2006-09-11</td></tr>
|
||||
<td>$Date$</td></tr>
|
||||
<tr><th class="docinfo-name">Copyright:</th>
|
||||
<td>Copyright David Abrahams 2004.</td></tr>
|
||||
</tbody>
|
||||
@ -37,7 +37,7 @@
|
||||
<col class="field-name" />
|
||||
<col class="field-body" />
|
||||
<tbody valign="top">
|
||||
<tr class="field"><th class="field-name">abstract:</th><td class="field-body">Header <tt class="docutils literal"><span class="pre"><boost/iterator/iterator_traits.hpp></span></tt> provides
|
||||
<tr class="field"><th class="field-name">abstract:</th><td class="field-body">Header <tt class="docutils literal"><boost/iterator/iterator_traits.hpp></tt> provides
|
||||
the ability to access an iterator's associated types using
|
||||
MPL-compatible <a class="reference external" href="../../mpl/doc/index.html#metafunctions">metafunctions</a>.</td>
|
||||
</tr>
|
||||
@ -46,15 +46,15 @@ MPL-compatible <a class="reference external" href="../../mpl/doc/index.html#meta
|
||||
<div class="section" id="overview">
|
||||
<h1>Overview</h1>
|
||||
<p><tt class="docutils literal"><span class="pre">std::iterator_traits</span></tt> provides access to five associated types
|
||||
of any iterator: its <tt class="docutils literal"><span class="pre">value_type</span></tt>, <tt class="docutils literal"><span class="pre">reference</span></tt>, <tt class="docutils literal"><span class="pre">pointer</span></tt>,
|
||||
<tt class="docutils literal"><span class="pre">iterator_category</span></tt>, and <tt class="docutils literal"><span class="pre">difference_type</span></tt>. Unfortunately,
|
||||
of any iterator: its <tt class="docutils literal">value_type</tt>, <tt class="docutils literal">reference</tt>, <tt class="docutils literal">pointer</tt>,
|
||||
<tt class="docutils literal">iterator_category</tt>, and <tt class="docutils literal">difference_type</tt>. Unfortunately,
|
||||
such a "multi-valued" traits template can be difficult to use in a
|
||||
metaprogramming context. <tt class="docutils literal"><span class="pre"><boost/iterator/iterator_traits.hpp></span></tt>
|
||||
metaprogramming context. <tt class="docutils literal"><boost/iterator/iterator_traits.hpp></tt>
|
||||
provides access to these types using a standard <a class="reference external" href="../../mpl/doc/index.html#metafunctions">metafunctions</a>.</p>
|
||||
</div>
|
||||
<div class="section" id="summary">
|
||||
<h1>Summary</h1>
|
||||
<p>Header <tt class="docutils literal"><span class="pre"><boost/iterator/iterator_traits.hpp></span></tt>:</p>
|
||||
<p>Header <tt class="docutils literal"><boost/iterator/iterator_traits.hpp></tt>:</p>
|
||||
<pre class="literal-block">
|
||||
template <class Iterator>
|
||||
struct iterator_value
|
||||
@ -98,21 +98,6 @@ struct iterator_category
|
||||
};
|
||||
</pre>
|
||||
</div>
|
||||
<div class="section" id="broken-compiler-notes">
|
||||
<h1>Broken Compiler Notes</h1>
|
||||
<p>Because of workarounds in Boost, you may find that these
|
||||
<a class="reference external" href="../../mpl/doc/index.html#metafunctions">metafunctions</a> actually work better than the facilities provided by
|
||||
your compiler's standard library.</p>
|
||||
<p>On compilers that don't support partial specialization, such as
|
||||
Microsoft Visual C++ 6.0 or 7.0, you may need to manually invoke
|
||||
<a class="reference external" href="../../type_traits/index.html#transformations">BOOST_BROKEN_COMPILER_TYPE_TRAITS_SPECIALIZATION</a> on the
|
||||
<tt class="docutils literal"><span class="pre">value_type</span></tt> of pointers that are passed to these metafunctions.</p>
|
||||
<p>Because of bugs in the implementation of GCC-2.9x, the name of
|
||||
<tt class="docutils literal"><span class="pre">iterator_category</span></tt> is changed to <tt class="docutils literal"><span class="pre">iterator_category_</span></tt> on that
|
||||
compiler. A macro, <tt class="docutils literal"><span class="pre">BOOST_ITERATOR_CATEGORY</span></tt>, that expands to
|
||||
either <tt class="docutils literal"><span class="pre">iterator_category</span></tt> or <tt class="docutils literal"><span class="pre">iterator_category_</span></tt>, as
|
||||
appropriate to the platform, is provided for portability.</p>
|
||||
</div>
|
||||
</div>
|
||||
<div class="footer">
|
||||
<hr class="footer" />
|
||||
|
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doc/iterator_traits.rst
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doc/iterator_traits.rst
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@ -75,24 +75,3 @@ Header ``<boost/iterator/iterator_traits.hpp>``::
|
||||
detail::iterator_traits<Iterator>::iterator_category
|
||||
type;
|
||||
};
|
||||
|
||||
Broken Compiler Notes
|
||||
=====================
|
||||
|
||||
Because of workarounds in Boost, you may find that these
|
||||
metafunctions_ actually work better than the facilities provided by
|
||||
your compiler's standard library.
|
||||
|
||||
On compilers that don't support partial specialization, such as
|
||||
Microsoft Visual C++ 6.0 or 7.0, you may need to manually invoke
|
||||
BOOST_BROKEN_COMPILER_TYPE_TRAITS_SPECIALIZATION_ on the
|
||||
``value_type`` of pointers that are passed to these metafunctions.
|
||||
|
||||
Because of bugs in the implementation of GCC-2.9x, the name of
|
||||
``iterator_category`` is changed to ``iterator_category_`` on that
|
||||
compiler. A macro, ``BOOST_ITERATOR_CATEGORY``, that expands to
|
||||
either ``iterator_category`` or ``iterator_category_``, as
|
||||
appropriate to the platform, is provided for portability.
|
||||
|
||||
.. _BOOST_BROKEN_COMPILER_TYPE_TRAITS_SPECIALIZATION: ../../type_traits/index.html#transformations
|
||||
|
||||
|
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@ -132,7 +132,7 @@ above are defined as follows:
|
||||
|
||||
iterator_adaptor();
|
||||
|
||||
[*Requires:] The `Base` type must be Default Constructible.\n
|
||||
[*Requires:] The `Base` type must be Default Constructible.[br]
|
||||
[*Returns:] An instance of `iterator_adaptor` with
|
||||
`m_iterator` default constructed.
|
||||
|
||||
@ -206,7 +206,7 @@ we're going to pick up right where it left off.
|
||||
.. |fac_tut| replace:: `iterator_facade` tutorial
|
||||
.. _fac_tut: iterator_facade.html#tutorial-example
|
||||
|
||||
[blurb [*`node_base*` really *is* an iterator]\n\n
|
||||
[blurb [*`node_base*` really *is* an iterator][br][br]
|
||||
It's not really a very interesting iterator, since `node_base`
|
||||
is an abstract class: a pointer to a `node_base` just points
|
||||
at some base subobject of an instance of some other class, and
|
||||
|
@ -156,7 +156,7 @@ semantics.
|
||||
[
|
||||
[`++r`]
|
||||
[`X&`]
|
||||
[pre:\n`r` is dereferenceable;\npost:\n`r` is dereferenceable or\n`r` is past-the-end]
|
||||
[pre:[br]`r` is dereferenceable;[br]post:[br]`r` is dereferenceable or[br]`r` is past-the-end]
|
||||
]
|
||||
[
|
||||
[`a == b`]
|
||||
@ -227,7 +227,7 @@ the stated semantics.
|
||||
[
|
||||
[`--r`]
|
||||
[`X&`]
|
||||
[pre: there exists `s` such that `r == ++s`.\n post: `s` is dereferenceable. `--(++r) == r`. `--r == --s` implies `r == s`. `&r == &--r`.]
|
||||
[pre: there exists `s` such that `r == ++s`.[br] post: `s` is dereferenceable. `--(++r) == r`. `--r == --s` implies `r == s`. `&r == &--r`.]
|
||||
]
|
||||
[
|
||||
[`r--`]
|
||||
|
@ -152,7 +152,7 @@ operations.
|
||||
|
||||
counting_iterator();
|
||||
|
||||
[*Requires: ] `Incrementable` is Default Constructible.\n
|
||||
[*Requires: ] `Incrementable` is Default Constructible.[br]
|
||||
[*Effects: ] Default construct the member `m_inc`.
|
||||
|
||||
|
||||
@ -174,13 +174,13 @@ operations.
|
||||
|
||||
counting_iterator& operator++();
|
||||
|
||||
[*Effects: ] `++m_inc`\n
|
||||
[*Effects: ] `++m_inc`[br]
|
||||
[*Returns: ] `*this`
|
||||
|
||||
|
||||
counting_iterator& operator--();
|
||||
|
||||
[*Effects: ] `--m_inc`\n
|
||||
[*Effects: ] `--m_inc`[br]
|
||||
[*Returns: ] `*this`
|
||||
|
||||
|
||||
|
@ -68,6 +68,7 @@ requirements.
|
||||
[
|
||||
[`i.dereference()`]
|
||||
[Access the value referred to]
|
||||
]
|
||||
[
|
||||
[`i.equal(j)`]
|
||||
[Compare for equality with `j`]
|
||||
@ -83,6 +84,7 @@ requirements.
|
||||
[
|
||||
[`i.advance(n)`]
|
||||
[Advance by `n` positions]
|
||||
]
|
||||
[
|
||||
[`i.distance_to(j)`]
|
||||
[Measure the distance to `j`]
|
||||
@ -487,7 +489,8 @@ w.m)` for some temporary object `w` of type `value_type`.
|
||||
iterator_facade<Dr2,V2,TC2,R2,D2> const& rhs);
|
||||
|
||||
[*Returns:]
|
||||
|
||||
|
||||
[pre
|
||||
if `is_convertible<Dr2,Dr1>::value`
|
||||
|
||||
then
|
||||
@ -495,6 +498,7 @@ w.m)` for some temporary object `w` of type `value_type`.
|
||||
|
||||
Otherwise,
|
||||
`((Dr2 const&)rhs).equal((Dr1 const&)lhs)`.
|
||||
]
|
||||
|
||||
|
||||
template <class Dr1, class V1, class TC1, class R1, class D1,
|
||||
@ -505,6 +509,7 @@ w.m)` for some temporary object `w` of type `value_type`.
|
||||
|
||||
[*Returns:]
|
||||
|
||||
[pre
|
||||
if `is_convertible<Dr2,Dr1>::value`
|
||||
|
||||
then
|
||||
@ -512,6 +517,7 @@ w.m)` for some temporary object `w` of type `value_type`.
|
||||
|
||||
Otherwise,
|
||||
`!((Dr2 const&)rhs).equal((Dr1 const&)lhs)`.
|
||||
]
|
||||
|
||||
|
||||
template <class Dr1, class V1, class TC1, class R1, class D1,
|
||||
@ -522,6 +528,7 @@ w.m)` for some temporary object `w` of type `value_type`.
|
||||
|
||||
[*Returns:]
|
||||
|
||||
[pre
|
||||
if `is_convertible<Dr2,Dr1>::value`
|
||||
|
||||
then
|
||||
@ -529,6 +536,7 @@ w.m)` for some temporary object `w` of type `value_type`.
|
||||
|
||||
Otherwise,
|
||||
`((Dr2 const&)rhs).distance_to((Dr1 const&)lhs) > 0`.
|
||||
]
|
||||
|
||||
|
||||
template <class Dr1, class V1, class TC1, class R1, class D1,
|
||||
@ -539,6 +547,7 @@ w.m)` for some temporary object `w` of type `value_type`.
|
||||
|
||||
[*Returns:]
|
||||
|
||||
[pre
|
||||
if `is_convertible<Dr2,Dr1>::value`
|
||||
|
||||
then
|
||||
@ -546,6 +555,7 @@ w.m)` for some temporary object `w` of type `value_type`.
|
||||
|
||||
Otherwise,
|
||||
`((Dr2 const&)rhs).distance_to((Dr1 const&)lhs) >= 0`.
|
||||
]
|
||||
|
||||
|
||||
template <class Dr1, class V1, class TC1, class R1, class D1,
|
||||
@ -556,6 +566,7 @@ w.m)` for some temporary object `w` of type `value_type`.
|
||||
|
||||
[*Returns:]
|
||||
|
||||
[pre
|
||||
if `is_convertible<Dr2,Dr1>::value`
|
||||
|
||||
then
|
||||
@ -563,6 +574,7 @@ w.m)` for some temporary object `w` of type `value_type`.
|
||||
|
||||
Otherwise,
|
||||
`((Dr2 const&)rhs).distance_to((Dr1 const&)lhs) < 0`.
|
||||
]
|
||||
|
||||
|
||||
template <class Dr1, class V1, class TC1, class R1, class D1,
|
||||
@ -573,6 +585,7 @@ w.m)` for some temporary object `w` of type `value_type`.
|
||||
|
||||
[*Returns:]
|
||||
|
||||
[pre
|
||||
if `is_convertible<Dr2,Dr1>::value`
|
||||
|
||||
then
|
||||
@ -580,6 +593,7 @@ w.m)` for some temporary object `w` of type `value_type`.
|
||||
|
||||
Otherwise,
|
||||
`((Dr2 const&)rhs).distance_to((Dr1 const&)lhs) <= 0`.
|
||||
]
|
||||
|
||||
.. _minus:
|
||||
|
||||
@ -592,6 +606,7 @@ w.m)` for some temporary object `w` of type `value_type`.
|
||||
|
||||
[*Return Type:]
|
||||
|
||||
[pre
|
||||
if `is_convertible<Dr2,Dr1>::value`
|
||||
|
||||
then
|
||||
@ -600,9 +615,11 @@ w.m)` for some temporary object `w` of type `value_type`.
|
||||
|
||||
Otherwise
|
||||
`difference` shall be `iterator_traits<Dr2>::difference_type`
|
||||
]
|
||||
|
||||
[*Returns:]
|
||||
|
||||
[pre
|
||||
if `is_convertible<Dr2,Dr1>::value`
|
||||
|
||||
then
|
||||
@ -610,6 +627,7 @@ w.m)` for some temporary object `w` of type `value_type`.
|
||||
|
||||
Otherwise,
|
||||
`((Dr2 const&)rhs).distance_to((Dr1 const&)lhs)`.
|
||||
]
|
||||
|
||||
|
||||
[endsect]
|
||||
|
@ -261,17 +261,17 @@ __ ../example/node_iterator1.cpp
|
||||
|
||||
[h2 A constant `node_iterator`]
|
||||
|
||||
[blurb *Constant and Mutable iterators*\n\n
|
||||
[blurb *Constant and Mutable iterators*[br][br]
|
||||
The term **mutable iterator** means an iterator through which
|
||||
the object it references (its "referent") can be modified. A
|
||||
**constant iterator** is one which doesn't allow modification of
|
||||
its referent.\n\n
|
||||
its referent.[br][br]
|
||||
The words *constant* and *mutable* don't refer to the ability to
|
||||
modify the iterator itself. For example, an `int const*` is a
|
||||
non-\ `const` *constant iterator*, which can be incremented
|
||||
but doesn't allow modification of its referent, and `int*
|
||||
const` is a `const` *mutable iterator*, which cannot be
|
||||
modified but which allows modification of its referent.\n\n
|
||||
modified but which allows modification of its referent.[br][br]
|
||||
Confusing? We agree, but those are the standard terms. It
|
||||
probably doesn't help much that a container's constant iterator
|
||||
is called `const_iterator`.
|
||||
@ -312,7 +312,7 @@ changes:
|
||||
node_base **const**\ * m_node;
|
||||
};
|
||||
|
||||
[blurb `const` and an iterator's `value_type`\n\n
|
||||
[blurb `const` and an iterator's `value_type`[br][br]
|
||||
The C++ standard requires an iterator's `value_type` *not* be
|
||||
`const`\ -qualified, so `iterator_facade` strips the
|
||||
`const` from its `Value` parameter in order to produce the
|
||||
|
@ -178,7 +178,7 @@ operations.
|
||||
|
||||
filter_iterator();
|
||||
|
||||
[*Requires: ]`Predicate` and `Iterator` must be Default Constructible.\n
|
||||
[*Requires: ]`Predicate` and `Iterator` must be Default Constructible.[br]
|
||||
[*Effects: ] Constructs a `filter_iterator` whose`m_pred`, `m_iter`, and `m_end`
|
||||
members are a default constructed.
|
||||
|
||||
@ -195,7 +195,7 @@ operations.
|
||||
filter_iterator(Iterator x, Iterator end = Iterator());
|
||||
|
||||
[*Requires: ] `Predicate` must be Default Constructible and
|
||||
`Predicate` is a class type (not a function pointer).\n
|
||||
`Predicate` is a class type (not a function pointer).[br]
|
||||
[*Effects: ] Constructs a `filter_iterator` where `m_iter` is either
|
||||
the first position in the range `[x,end)` such that `m_pred(*m_iter) == true`
|
||||
or else`m_iter == end`. The member `m_pred` is default constructed.
|
||||
@ -205,9 +205,9 @@ operations.
|
||||
filter_iterator(
|
||||
filter_iterator<Predicate, OtherIterator> const& t
|
||||
, typename enable_if_convertible<OtherIterator, Iterator>::type* = 0 // exposition
|
||||
);`
|
||||
);
|
||||
|
||||
[*Requires: ] `OtherIterator` is implicitly convertible to `Iterator`.\n
|
||||
[*Requires: ] `OtherIterator` is implicitly convertible to `Iterator`.[br]
|
||||
[*Effects: ] Constructs a filter iterator whose members are copied from `t`.
|
||||
|
||||
|
||||
@ -235,7 +235,7 @@ operations.
|
||||
|
||||
[*Effects: ] Increments `m_iter` and then continues to
|
||||
increment `m_iter` until either `m_iter == m_end`
|
||||
or `m_pred(*m_iter) == true`.\n
|
||||
or `m_pred(*m_iter) == true`.[br]
|
||||
[*Returns: ] `*this`
|
||||
|
||||
|
||||
|
@ -203,7 +203,7 @@ following operations:
|
||||
|
||||
indirect_iterator();
|
||||
|
||||
[*Requires: ] `Iterator` must be Default Constructible.\n
|
||||
[*Requires: ] `Iterator` must be Default Constructible.[br]
|
||||
[*Effects: ] Constructs an instance of `indirect_iterator` with
|
||||
a default-constructed `m_iterator`.
|
||||
|
||||
@ -225,7 +225,7 @@ following operations:
|
||||
, typename enable_if_convertible<Iterator2, Iterator>::type* = 0 // exposition
|
||||
);
|
||||
|
||||
[*Requires: ] `Iterator2` is implicitly convertible to `Iterator`.\n
|
||||
[*Requires: ] `Iterator2` is implicitly convertible to `Iterator`.[br]
|
||||
[*Effects: ] Constructs an instance of `indirect_iterator` whose
|
||||
`m_iterator` subobject is constructed from `y.base()`.
|
||||
|
||||
@ -242,13 +242,13 @@ following operations:
|
||||
|
||||
indirect_iterator& operator++();
|
||||
|
||||
[*Effects: ] `++m_iterator`\n
|
||||
[*Effects: ] `++m_iterator`[br]
|
||||
[*Returns: ] `*this`
|
||||
|
||||
|
||||
indirect_iterator& operator--();
|
||||
|
||||
[*Effects: ] `--m_iterator`\n
|
||||
[*Effects: ] `--m_iterator`[br]
|
||||
[*Returns: ] `*this`
|
||||
|
||||
[endsect]
|
@ -1,6 +1,7 @@
|
||||
|
||||
[library Boost.Iterator
|
||||
[/ version 1.0.1]
|
||||
[quickbook 1.6]
|
||||
[authors [Abrahams, David], [Siek, Jeremy], [Witt, Thomas]]
|
||||
[copyright 2003 2005 David Abrahams Jeremy Siek Thomas Witt]
|
||||
[category iterator]
|
||||
@ -99,7 +100,7 @@ adaptors`_ mentioned below have been proposed for standardization
|
||||
|
||||
The iterator library supplies a useful suite of standard-conforming
|
||||
iterator templates based on the Boost [link
|
||||
intro.iterator_facade_and_adaptor iterator facade and adaptor]
|
||||
iterator.intro.iterator_facade_and_adaptor iterator facade and adaptor]
|
||||
templates.
|
||||
|
||||
[def _counting_ [@./counting_iterator.html `counting_iterator`]]
|
||||
|
@ -189,7 +189,7 @@ following operations.
|
||||
|
||||
permutation_iterator& operator++();
|
||||
|
||||
[*Effects: ] `++m_order`\n
|
||||
[*Effects: ] `++m_order`[br]
|
||||
[*Returns: ] `*this`
|
||||
|
||||
|
||||
|
@ -115,7 +115,7 @@ operations.
|
||||
|
||||
reverse_iterator();
|
||||
|
||||
[*Requires: ] `Iterator` must be Default Constructible.\n
|
||||
[*Requires: ] `Iterator` must be Default Constructible.[br]
|
||||
[*Effects: ] Constructs an instance of `reverse_iterator` with `m_iterator`
|
||||
default constructed.
|
||||
|
||||
@ -131,7 +131,7 @@ operations.
|
||||
, typename enable_if_convertible<OtherIterator, Iterator>::type* = 0 // exposition
|
||||
);
|
||||
|
||||
[*Requires: ] `OtherIterator` is implicitly convertible to `Iterator`.\n
|
||||
[*Requires: ] `OtherIterator` is implicitly convertible to `Iterator`.[br]
|
||||
[*Effects: ] Constructs instance of `reverse_iterator` whose
|
||||
`m_iterator` subobject is constructed from `y.base()`.
|
||||
|
||||
@ -149,12 +149,12 @@ operations.
|
||||
|
||||
reverse_iterator& operator++();
|
||||
|
||||
[*Effects: ] `--m_iterator`\n
|
||||
[*Effects: ] `--m_iterator`[br]
|
||||
[*Returns: ] `*this`
|
||||
|
||||
reverse_iterator& operator--();
|
||||
|
||||
[*Effects: ] `++m_iterator`\n
|
||||
[*Effects: ] `++m_iterator`[br]
|
||||
[*Returns: ] `*this`
|
||||
|
||||
[endsect]
|
@ -52,21 +52,4 @@ Header `<boost/iterator/iterator_traits.hpp>`:
|
||||
type;
|
||||
};
|
||||
|
||||
[h2 Broken Compiler Notes]
|
||||
|
||||
Because of workarounds in Boost, you may find that these
|
||||
[@../../mpl/doc/index.html#metafunctions metafunctions] actually work better than the facilities provided by
|
||||
your compiler's standard library.
|
||||
|
||||
On compilers that don't support partial specialization, such as
|
||||
Microsoft Visual C++ 6.0 or 7.0, you may need to manually invoke
|
||||
[@../../type_traits/index.html#transformations BOOST_BROKEN_COMPILER_TYPE_TRAITS_SPECIALIZATION] on the
|
||||
`value_type` of pointers that are passed to these metafunctions.
|
||||
|
||||
Because of bugs in the implementation of GCC-2.9x, the name of
|
||||
`iterator_category` is changed to `iterator_category_` on that
|
||||
compiler. A macro, `BOOST_ITERATOR_CATEGORY`, that expands to
|
||||
either `iterator_category` or `iterator_category_`, as
|
||||
appropriate to the platform, is provided for portability.
|
||||
|
||||
[endsect]
|
||||
[endsect]
|
||||
|
@ -85,7 +85,7 @@ The source code for this example can be found
|
||||
|
||||
|
||||
If `Reference` is `use_default` then the `reference` member of
|
||||
`transform_iterator` is\n
|
||||
`transform_iterator` is[br]
|
||||
`result_of<UnaryFunction(iterator_traits<Iterator>::reference)>::type`.
|
||||
Otherwise, `reference` is `Reference`.
|
||||
|
||||
@ -160,7 +160,7 @@ interoperable with `Y`.
|
||||
|
||||
[h3 Operations]
|
||||
|
||||
In addition to the operations required by the [link transform.concepts concepts] modeled by
|
||||
In addition to the operations required by the [link iterator.specialized.transform.concepts concepts] modeled by
|
||||
`transform_iterator`, `transform_iterator` provides the following
|
||||
operations:
|
||||
|
||||
@ -183,7 +183,7 @@ operations:
|
||||
|
||||
[*Returns: ] An instance of `transform_iterator` with `m_f`
|
||||
initialized to `t.functor()` and `m_iterator` initialized to
|
||||
`t.base()`.\n
|
||||
`t.base()`.[br]
|
||||
[*Requires: ] `OtherIterator` is implicitly convertible to `Iterator`.
|
||||
|
||||
|
||||
@ -204,13 +204,13 @@ operations:
|
||||
|
||||
transform_iterator& operator++();
|
||||
|
||||
[*Effects: ] `++m_iterator`\n
|
||||
[*Effects: ] `++m_iterator`[br]
|
||||
[*Returns: ] `*this`
|
||||
|
||||
|
||||
transform_iterator& operator--();
|
||||
|
||||
[*Effects: ] `--m_iterator`\n
|
||||
[*Effects: ] `--m_iterator`[br]
|
||||
[*Returns: ] `*this`
|
||||
|
||||
[endsect]
|
||||
|
@ -49,11 +49,40 @@ proxy references or return the pointee by value. When that
|
||||
information is needed, call on `indirect_reference`.
|
||||
|
||||
Both of these templates are essential to the correct functioning of
|
||||
[link indirecct `indirect_iterator`].
|
||||
[link iterator.specialized.indirect `indirect_iterator`].
|
||||
|
||||
[h2 `minimum_category`]
|
||||
|
||||
`minimum_category` takes two iterator categories or two iterator traversal tags
|
||||
and returns the one that is the weakest (i.e. least advanced). For example:
|
||||
|
||||
static_assert(
|
||||
is_same<
|
||||
minimum_category<
|
||||
std::forward_iterator_tag,
|
||||
std::random_access_iterator_tag
|
||||
>::type,
|
||||
std::forward_iterator_tag
|
||||
>::value,
|
||||
"Unexpected minimum_category result"
|
||||
);
|
||||
|
||||
[h2 Iterator category and traversal tags manipulation]
|
||||
|
||||
The library provides several utilities to simplify conversions between iterator categories
|
||||
and traversal tags:
|
||||
|
||||
* `iterator_category_to_traversal<C>::type` - the metafunction takes an iterator category `C` and returns
|
||||
the corresponding traversal tag.
|
||||
* `iterator_traversal<T>::type` - a shorthand for `iterator_category_to_traversal<iterator_category<T>::type>::type`.
|
||||
* `pure_traversal_tag<T>::type` - the metafunction takes a tag `T` which derives from one of the iterator traversal tags
|
||||
and returns that traversal tag. `T` may also derive from other tags describing the iterator (e.g. whether this is a `const`-iterator
|
||||
or not), these additional tags are not considered.
|
||||
* `pure_iterator_traversal<T>::type` - a shorthand for `pure_traversal_tag<iterator_traversal<T>::type>::type`.
|
||||
|
||||
[h2 Reference]
|
||||
|
||||
[h3 `pointeee`]
|
||||
[h3 `pointee`]
|
||||
|
||||
template <class Dereferenceable>
|
||||
struct pointee
|
||||
@ -74,9 +103,9 @@ Both of these templates are essential to the correct functioning of
|
||||
|
||||
if ( ++x is ill-formed )
|
||||
{
|
||||
return `Dereferenceable::element_type`
|
||||
return Dereferenceable::element_type
|
||||
}
|
||||
else if (`*x` is a mutable reference to
|
||||
else if (*x is a mutable reference to
|
||||
std::iterator_traits<Dereferenceable>::value_type)
|
||||
{
|
||||
return iterator_traits<Dereferenceable>::value_type
|
||||
@ -106,10 +135,81 @@ Both of these templates are essential to the correct functioning of
|
||||
`x` is an object of type `Dereferenceable`:
|
||||
|
||||
if ( ++x is ill-formed )
|
||||
return `pointee<Dereferenceable>::type&`
|
||||
return pointee<Dereferenceable>::type&
|
||||
else
|
||||
std::iterator_traits<Dereferenceable>::reference
|
||||
|
||||
[h3 `minimum_category`]
|
||||
|
||||
template <typename C1, typename C2>
|
||||
struct minimum_category
|
||||
{
|
||||
typedef /* see below */ type;
|
||||
};
|
||||
|
||||
[*Requires:] Both `C1` and `C2` shall be standard iterator categories or
|
||||
iterator traversal tags.
|
||||
|
||||
`type` is determined according to the following algorithm, where `c1` is an
|
||||
object of type `C1` and `c2` is an object of type `C2`:
|
||||
|
||||
if (c1 is convertible to c2)
|
||||
return C2;
|
||||
else
|
||||
return C1;
|
||||
|
||||
[note The above definition relies on the fact that the more restricting categories
|
||||
and traversal tags are convertible to the less restricting ones.]
|
||||
|
||||
[h3 `iterator_category_to_traversal`]
|
||||
|
||||
template <typename C>
|
||||
struct iterator_category_to_traversal
|
||||
{
|
||||
typedef /* see below */ type;
|
||||
};
|
||||
|
||||
[*Requires:] `C` shall be a standard iterator category or an
|
||||
iterator traversal tag.
|
||||
|
||||
If `C` is an iterator traversal tag or convertible to one, `type` equivalent to `C`.
|
||||
Otherwise, `type` is defined to the closest iterator traversal tag matching `C`.
|
||||
|
||||
[h3 `iterator_traversal`]
|
||||
|
||||
template <typename Iterator>
|
||||
struct iterator_traversal
|
||||
{
|
||||
typedef typename iterator_category_to_traversal<
|
||||
typename iterator_category<Iterator>::type
|
||||
>::type type;
|
||||
};
|
||||
|
||||
[*Requires:] `Iterator` shall be an iterator.
|
||||
|
||||
[h3 `pure_traversal_tag`]
|
||||
|
||||
template <typename T>
|
||||
struct pure_traversal_tag
|
||||
{
|
||||
typedef /* see below */ type;
|
||||
};
|
||||
|
||||
[*Requires:] `T` shall be convertible to an iterator traversal tag.
|
||||
|
||||
`type` is defined to be the most advanced traversal tag `Tag` so that `T` is convertible to `Tag`.
|
||||
|
||||
[h3 `pure_iterator_traversal`]
|
||||
|
||||
template <typename Iterator>
|
||||
struct pure_iterator_traversal
|
||||
{
|
||||
typedef typename pure_traversal_tag<
|
||||
typename iterator_traversal<Iterator>::type
|
||||
>::type type;
|
||||
};
|
||||
|
||||
[*Requires:] `Iterator` shall be an iterator.
|
||||
|
||||
[endsect]
|
||||
|
||||
@ -221,4 +321,4 @@ Iterator Traversal Concepts
|
||||
|
||||
[endsect]
|
||||
|
||||
[endsect]
|
||||
[endsect]
|
||||
|
@ -8,6 +8,16 @@ the zip iterator moves all the iterators in parallel.
|
||||
Dereferencing the zip iterator returns a tuple that contains
|
||||
the results of dereferencing the individual iterators.
|
||||
|
||||
The tuple of iterators is now implemented in terms of a Boost fusion sequence.
|
||||
Because of this the 'tuple' may be any Boost fusion sequence and, for backwards
|
||||
compatibility through a Boost fusion sequence adapter, a Boost tuple. Because the
|
||||
'tuple' may be any boost::fusion sequence the 'tuple' may also be any type for which a
|
||||
Boost fusion adapter exists. This includes, among others, a std::tuple and a std::pair.
|
||||
Just remember to include the appropriate Boost fusion adapter header files for these
|
||||
other Boost fusion adapters. The zip_iterator header file already includes the
|
||||
Boost fusion adapter header file for Boost tuple, so you need not include it yourself
|
||||
to use a Boost tuple as your 'tuple'.
|
||||
|
||||
[section:zip_example Example]
|
||||
|
||||
There are two main types of applications of the `zip_iterator`. The first
|
||||
@ -218,7 +228,7 @@ operations.
|
||||
, IteratorTuple>::type* = 0 // exposition only
|
||||
);
|
||||
|
||||
[*Returns:] An instance of `zip_iterator` that is a copy of `other`.\n
|
||||
[*Returns:] An instance of `zip_iterator` that is a copy of `other`.[br]
|
||||
[*Requires:] `OtherIteratorTuple` is implicitly convertible to `IteratorTuple`.
|
||||
|
||||
|
||||
@ -235,13 +245,13 @@ operations.
|
||||
|
||||
zip_iterator& operator++();
|
||||
|
||||
[*Effects:] Increments each iterator in `m_iterator_tuple`.\n
|
||||
[*Effects:] Increments each iterator in `m_iterator_tuple`.[br]
|
||||
[*Returns:] `*this`
|
||||
|
||||
|
||||
zip_iterator& operator--();
|
||||
|
||||
[*Effects:] Decrements each iterator in `m_iterator_tuple`.\n
|
||||
[*Effects:] Decrements each iterator in `m_iterator_tuple`.[br]
|
||||
[*Returns:] `*this`
|
||||
|
||||
template<typename IteratorTuple>
|
||||
|
0
doc/reverse_iterator.pdf
Executable file → Normal file
0
doc/reverse_iterator.pdf
Executable file → Normal file
0
doc/transform_iterator.pdf
Executable file → Normal file
0
doc/transform_iterator.pdf
Executable file → Normal file
0
doc/transform_iterator_eg.rst
Executable file → Normal file
0
doc/transform_iterator_eg.rst
Executable file → Normal file
0
doc/zip_iterator.html
Executable file → Normal file
0
doc/zip_iterator.html
Executable file → Normal file
0
doc/zip_iterator.pdf
Executable file → Normal file
0
doc/zip_iterator.pdf
Executable file → Normal file
0
doc/zip_iterator.rst
Executable file → Normal file
0
doc/zip_iterator.rst
Executable file → Normal file
10
doc/zip_iterator_abstract.rst
Executable file → Normal file
10
doc/zip_iterator_abstract.rst
Executable file → Normal file
@ -8,3 +8,13 @@ iterator is constructed from a tuple of iterators. Moving
|
||||
the zip iterator moves all the iterators in parallel.
|
||||
Dereferencing the zip iterator returns a tuple that contains
|
||||
the results of dereferencing the individual iterators.
|
||||
|
||||
The tuple of iterators is now implemented in terms of a Boost fusion sequence.
|
||||
Because of this the 'tuple' may be any Boost fusion sequence and, for backwards
|
||||
compatibility through a Boost fusion sequence adapter, a Boost tuple. Because the
|
||||
'tuple' may be any boost::fusion sequence the 'tuple' may also be any type for which a
|
||||
Boost fusion adapter exists. This includes, among others, a std::tuple and a std::pair.
|
||||
Just remember to include the appropriate Boost fusion adapter header files for these
|
||||
other Boost fusion adapters. The zip_iterator header file already includes the
|
||||
Boost fusion adapter header file for Boost tuple, so you need not include it yourself
|
||||
to use a Boost tuple as your 'tuple'.
|
||||
|
0
doc/zip_iterator_eg.rst
Executable file → Normal file
0
doc/zip_iterator_eg.rst
Executable file → Normal file
0
doc/zip_iterator_ref.rst
Executable file → Normal file
0
doc/zip_iterator_ref.rst
Executable file → Normal file
0
example/node.hpp
Executable file → Normal file
0
example/node.hpp
Executable file → Normal file
0
example/node_iterator1.cpp
Executable file → Normal file
0
example/node_iterator1.cpp
Executable file → Normal file
0
example/node_iterator1.hpp
Executable file → Normal file
0
example/node_iterator1.hpp
Executable file → Normal file
0
example/node_iterator2.cpp
Executable file → Normal file
0
example/node_iterator2.cpp
Executable file → Normal file
0
example/node_iterator2.hpp
Executable file → Normal file
0
example/node_iterator2.hpp
Executable file → Normal file
0
example/node_iterator3.cpp
Executable file → Normal file
0
example/node_iterator3.cpp
Executable file → Normal file
0
example/node_iterator3.hpp
Executable file → Normal file
0
example/node_iterator3.hpp
Executable file → Normal file
@ -14,6 +14,7 @@
|
||||
#include <iterator>
|
||||
|
||||
namespace boost {
|
||||
namespace iterators {
|
||||
|
||||
template <class UnaryFunction>
|
||||
class function_output_iterator {
|
||||
@ -33,13 +34,13 @@ namespace boost {
|
||||
struct output_proxy {
|
||||
output_proxy(UnaryFunction& f) : m_f(f) { }
|
||||
template <class T> output_proxy& operator=(const T& value) {
|
||||
m_f(value);
|
||||
return *this;
|
||||
m_f(value);
|
||||
return *this;
|
||||
}
|
||||
UnaryFunction& m_f;
|
||||
};
|
||||
output_proxy operator*() { return output_proxy(m_f); }
|
||||
self& operator++() { return *this; }
|
||||
self& operator++() { return *this; }
|
||||
self& operator++(int) { return *this; }
|
||||
private:
|
||||
UnaryFunction m_f;
|
||||
@ -51,6 +52,11 @@ namespace boost {
|
||||
return function_output_iterator<UnaryFunction>(f);
|
||||
}
|
||||
|
||||
} // namespace iterators
|
||||
|
||||
using iterators::function_output_iterator;
|
||||
using iterators::make_function_output_iterator;
|
||||
|
||||
} // namespace boost
|
||||
|
||||
#endif // BOOST_FUNCTION_OUTPUT_ITERATOR_HPP
|
||||
|
@ -17,6 +17,7 @@
|
||||
#include <boost/ref.hpp>
|
||||
|
||||
namespace boost {
|
||||
namespace iterators {
|
||||
|
||||
template<class Generator>
|
||||
class generator_iterator
|
||||
@ -33,7 +34,7 @@ class generator_iterator
|
||||
, single_pass_traversal_tag
|
||||
, typename Generator::result_type const&
|
||||
> super_t;
|
||||
|
||||
|
||||
public:
|
||||
generator_iterator() {}
|
||||
generator_iterator(Generator* g) : m_g(g), m_value((*m_g)()) {}
|
||||
@ -73,8 +74,12 @@ make_generator_iterator(Generator & gen)
|
||||
return result_t(&gen);
|
||||
}
|
||||
|
||||
} // namespace iterators
|
||||
|
||||
using iterators::generator_iterator;
|
||||
using iterators::generator_iterator_generator;
|
||||
using iterators::make_generator_iterator;
|
||||
|
||||
} // namespace boost
|
||||
|
||||
|
||||
#endif // BOOST_ITERATOR_ADAPTOR_GENERATOR_ITERATOR_HPP
|
||||
|
||||
|
@ -17,7 +17,7 @@
|
||||
# include <boost/mpl/eval_if.hpp>
|
||||
# include <boost/pointee.hpp>
|
||||
|
||||
namespace boost {
|
||||
namespace boost {
|
||||
|
||||
namespace detail
|
||||
{
|
||||
@ -37,7 +37,7 @@ struct indirect_reference
|
||||
>
|
||||
{
|
||||
};
|
||||
|
||||
|
||||
} // namespace boost
|
||||
|
||||
#endif // INDIRECT_REFERENCE_DWA200415_HPP
|
||||
|
@ -13,6 +13,7 @@
|
||||
# include <boost/mpl/eval_if.hpp>
|
||||
|
||||
namespace boost {
|
||||
namespace iterators {
|
||||
|
||||
template <
|
||||
class Incrementable
|
||||
@ -30,13 +31,13 @@ namespace detail
|
||||
{
|
||||
// For a while, this wasn't true, but we rely on it below. This is a regression assert.
|
||||
BOOST_STATIC_ASSERT(::boost::is_integral<char>::value);
|
||||
|
||||
|
||||
# ifndef BOOST_NO_LIMITS_COMPILE_TIME_CONSTANTS
|
||||
|
||||
|
||||
BOOST_STATIC_CONSTANT(bool, value = std::numeric_limits<T>::is_specialized);
|
||||
|
||||
|
||||
# else
|
||||
|
||||
|
||||
# if !BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x551))
|
||||
BOOST_STATIC_CONSTANT(
|
||||
bool, value = (
|
||||
@ -46,20 +47,20 @@ namespace detail
|
||||
# else
|
||||
BOOST_STATIC_CONSTANT(bool, value = ::boost::is_arithmetic<T>::value);
|
||||
# endif
|
||||
|
||||
|
||||
# endif
|
||||
};
|
||||
|
||||
template <class T>
|
||||
struct is_numeric
|
||||
: mpl::bool_<(::boost::detail::is_numeric_impl<T>::value)>
|
||||
: mpl::bool_<(::boost::iterators::detail::is_numeric_impl<T>::value)>
|
||||
{};
|
||||
|
||||
# if defined(BOOST_HAS_LONG_LONG)
|
||||
template <>
|
||||
struct is_numeric< ::boost::long_long_type>
|
||||
: mpl::true_ {};
|
||||
|
||||
|
||||
template <>
|
||||
struct is_numeric< ::boost::ulong_long_type>
|
||||
: mpl::true_ {};
|
||||
@ -69,7 +70,7 @@ namespace detail
|
||||
template <>
|
||||
struct is_numeric<wchar_t>
|
||||
: mpl::true_ {};
|
||||
|
||||
|
||||
template <class T>
|
||||
struct numeric_difference
|
||||
{
|
||||
@ -77,7 +78,7 @@ namespace detail
|
||||
};
|
||||
|
||||
BOOST_STATIC_ASSERT(is_numeric<int>::value);
|
||||
|
||||
|
||||
template <class Incrementable, class CategoryOrTraversal, class Difference>
|
||||
struct counting_iterator_base
|
||||
{
|
||||
@ -89,7 +90,7 @@ namespace detail
|
||||
, iterator_traversal<Incrementable>
|
||||
>
|
||||
>::type traversal;
|
||||
|
||||
|
||||
typedef typename detail::ia_dflt_help<
|
||||
Difference
|
||||
, mpl::eval_if<
|
||||
@ -98,7 +99,7 @@ namespace detail
|
||||
, iterator_difference<Incrementable>
|
||||
>
|
||||
>::type difference;
|
||||
|
||||
|
||||
typedef iterator_adaptor<
|
||||
counting_iterator<Incrementable, CategoryOrTraversal, Difference> // self
|
||||
, Incrementable // Base
|
||||
@ -106,7 +107,7 @@ namespace detail
|
||||
# ifndef BOOST_ITERATOR_REF_CONSTNESS_KILLS_WRITABILITY
|
||||
const // MSVC won't strip this. Instead we enable Thomas'
|
||||
// criterion (see boost/iterator/detail/facade_iterator_category.hpp)
|
||||
# endif
|
||||
# endif
|
||||
, traversal
|
||||
, Incrementable const& // reference
|
||||
, difference
|
||||
@ -136,7 +137,7 @@ namespace detail
|
||||
{
|
||||
static Difference distance(Incrementable1 x, Incrementable2 y)
|
||||
{
|
||||
return numeric_distance(x, y);
|
||||
return boost::detail::numeric_distance(x, y);
|
||||
}
|
||||
};
|
||||
}
|
||||
@ -154,14 +155,14 @@ class counting_iterator
|
||||
typedef typename detail::counting_iterator_base<
|
||||
Incrementable, CategoryOrTraversal, Difference
|
||||
>::type super_t;
|
||||
|
||||
|
||||
friend class iterator_core_access;
|
||||
|
||||
public:
|
||||
typedef typename super_t::difference_type difference_type;
|
||||
|
||||
counting_iterator() { }
|
||||
|
||||
|
||||
counting_iterator(counting_iterator const& rhs) : super_t(rhs.base()) {}
|
||||
|
||||
counting_iterator(Incrementable x)
|
||||
@ -177,10 +178,10 @@ class counting_iterator
|
||||
)
|
||||
: super_t(t.base())
|
||||
{}
|
||||
# endif
|
||||
# endif
|
||||
|
||||
private:
|
||||
|
||||
|
||||
typename super_t::reference dereference() const
|
||||
{
|
||||
return this->base_reference();
|
||||
@ -209,7 +210,11 @@ make_counting_iterator(Incrementable x)
|
||||
return result_t(x);
|
||||
}
|
||||
|
||||
} // namespace iterators
|
||||
|
||||
} // namespace boost::iterator
|
||||
using iterators::counting_iterator;
|
||||
using iterators::make_counting_iterator;
|
||||
|
||||
} // namespace boost
|
||||
|
||||
#endif // COUNTING_ITERATOR_DWA200348_HPP
|
||||
|
6
include/boost/iterator/detail/any_conversion_eater.hpp
Executable file → Normal file
6
include/boost/iterator/detail/any_conversion_eater.hpp
Executable file → Normal file
@ -4,7 +4,9 @@
|
||||
#ifndef ANY_CONVERSION_EATER_DWA20031117_HPP
|
||||
# define ANY_CONVERSION_EATER_DWA20031117_HPP
|
||||
|
||||
namespace boost { namespace detail {
|
||||
namespace boost {
|
||||
namespace iterators {
|
||||
namespace detail {
|
||||
|
||||
// This type can be used in traits to "eat" up the one user-defined
|
||||
// implicit conversion allowed.
|
||||
@ -14,6 +16,6 @@ struct any_conversion_eater
|
||||
any_conversion_eater(T const&);
|
||||
};
|
||||
|
||||
}} // namespace boost::detail
|
||||
}}} // namespace boost::iterators::detail
|
||||
|
||||
#endif // ANY_CONVERSION_EATER_DWA20031117_HPP
|
||||
|
@ -46,8 +46,7 @@
|
||||
|
||||
#endif
|
||||
|
||||
#if BOOST_WORKAROUND(BOOST_MSVC, <= 1300) \
|
||||
|| BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x5A0)) \
|
||||
#if BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x5A0)) \
|
||||
|| (BOOST_WORKAROUND(BOOST_INTEL_CXX_VERSION, <= 700) && defined(_MSC_VER)) \
|
||||
|| BOOST_WORKAROUND(__DECCXX_VER, BOOST_TESTED_AT(60590042)) \
|
||||
|| BOOST_WORKAROUND(__SUNPRO_CC, BOOST_TESTED_AT(0x590))
|
||||
@ -88,8 +87,7 @@
|
||||
# define BOOST_NO_IS_CONVERTIBLE // "is_convertible doesn't work for simple types"
|
||||
#endif
|
||||
|
||||
#if BOOST_WORKAROUND(__GNUC__, == 2) \
|
||||
|| BOOST_WORKAROUND(__GNUC__, == 3) && BOOST_WORKAROUND(__GNUC_MINOR__, < 4) && !defined(__EDG_VERSION__) \
|
||||
#if BOOST_WORKAROUND(__GNUC__, == 3) && BOOST_WORKAROUND(__GNUC_MINOR__, < 4) && !defined(__EDG_VERSION__) \
|
||||
|| BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x551))
|
||||
# define BOOST_NO_IS_CONVERTIBLE_TEMPLATE // The following program fails to compile:
|
||||
|
||||
@ -116,16 +114,9 @@
|
||||
# define BOOST_NO_STRICT_ITERATOR_INTEROPERABILITY
|
||||
#endif
|
||||
|
||||
# if !BOOST_WORKAROUND(BOOST_MSVC, <= 1300)
|
||||
# define BOOST_ARG_DEPENDENT_TYPENAME typename
|
||||
# else
|
||||
# define BOOST_ARG_DEPENDENT_TYPENAME
|
||||
# endif
|
||||
# if BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x564))
|
||||
|
||||
# if BOOST_WORKAROUND(__GNUC__, == 2) && BOOST_WORKAROUND(__GNUC_MINOR__, BOOST_TESTED_AT(95)) \
|
||||
|| BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x564))
|
||||
|
||||
// GCC-2.95 eagerly instantiates templated constructors and conversion
|
||||
// GCC-2.95 (obsolete) eagerly instantiates templated constructors and conversion
|
||||
// operators in convertibility checks, causing premature errors.
|
||||
//
|
||||
// Borland's problems are harder to diagnose due to lack of an
|
||||
|
@ -14,7 +14,6 @@
|
||||
#undef BOOST_NO_IS_CONVERTIBLE
|
||||
#undef BOOST_NO_IS_CONVERTIBLE_TEMPLATE
|
||||
#undef BOOST_NO_STRICT_ITERATOR_INTEROPERABILITY
|
||||
#undef BOOST_ARG_DEPENDENT_TYPENAME
|
||||
#undef BOOST_NO_LVALUE_RETURN_DETECTION
|
||||
#undef BOOST_NO_ONE_WAY_ITERATOR_INTEROP
|
||||
|
||||
|
@ -35,7 +35,7 @@ namespace boost
|
||||
typedef T type;
|
||||
};
|
||||
};
|
||||
|
||||
|
||||
//
|
||||
// For compilers that don't support "Substitution Failure Is Not An Error"
|
||||
// enable_if falls back to always enabled. See comments
|
||||
@ -70,11 +70,8 @@ namespace boost
|
||||
: enabled<(Cond::value)>::template base<Return>
|
||||
# else
|
||||
: mpl::identity<Return>
|
||||
# endif
|
||||
# endif
|
||||
{
|
||||
# if BOOST_WORKAROUND(BOOST_MSVC, < 1300)
|
||||
typedef Return type;
|
||||
# endif
|
||||
};
|
||||
|
||||
} // namespace iterators
|
||||
|
@ -30,10 +30,13 @@
|
||||
// iterator_category deduction for iterator_facade
|
||||
//
|
||||
|
||||
// forward declaration
|
||||
namespace boost { struct use_default; }
|
||||
namespace boost {
|
||||
namespace iterators {
|
||||
|
||||
namespace boost { namespace detail {
|
||||
// forward declaration
|
||||
struct use_default;
|
||||
|
||||
namespace detail {
|
||||
|
||||
struct input_output_iterator_tag
|
||||
: std::input_iterator_tag
|
||||
@ -63,9 +66,9 @@ struct iterator_writability_disabled
|
||||
, boost::detail::indirect_traits::is_reference_to_const<Reference>
|
||||
, is_const<ValueParam>
|
||||
>
|
||||
# else
|
||||
# else
|
||||
: is_const<ValueParam>
|
||||
# endif
|
||||
# endif
|
||||
{};
|
||||
|
||||
|
||||
@ -96,7 +99,7 @@ struct iterator_facade_default_category
|
||||
, typename mpl::eval_if<
|
||||
mpl::and_<
|
||||
is_convertible<Traversal, single_pass_traversal_tag>
|
||||
|
||||
|
||||
// check for readability
|
||||
, is_convertible<Reference, ValueParam>
|
||||
>
|
||||
@ -132,7 +135,6 @@ template <class Category, class Traversal>
|
||||
struct iterator_category_with_traversal
|
||||
: Category, Traversal
|
||||
{
|
||||
# if !BOOST_WORKAROUND(BOOST_MSVC, <= 1300)
|
||||
// Make sure this isn't used to build any categories where
|
||||
// convertibility to Traversal is redundant. Should just use the
|
||||
// Category element in that case.
|
||||
@ -147,8 +149,7 @@ struct iterator_category_with_traversal
|
||||
BOOST_MPL_ASSERT_NOT((is_iterator_traversal<Category>));
|
||||
# if !BOOST_WORKAROUND(BOOST_MSVC, BOOST_TESTED_AT(1310))
|
||||
BOOST_MPL_ASSERT((is_iterator_traversal<Traversal>));
|
||||
# endif
|
||||
# endif
|
||||
# endif
|
||||
};
|
||||
|
||||
// Computes an iterator_category tag whose traversal is Traversal and
|
||||
@ -156,14 +157,12 @@ struct iterator_category_with_traversal
|
||||
template <class Traversal, class ValueParam, class Reference>
|
||||
struct facade_iterator_category_impl
|
||||
{
|
||||
# if !BOOST_WORKAROUND(BOOST_MSVC, <= 1300)
|
||||
BOOST_MPL_ASSERT_NOT((is_iterator_category<Traversal>));
|
||||
# endif
|
||||
|
||||
|
||||
typedef typename iterator_facade_default_category<
|
||||
Traversal,ValueParam,Reference
|
||||
>::type category;
|
||||
|
||||
|
||||
typedef typename mpl::if_<
|
||||
is_same<
|
||||
Traversal
|
||||
@ -187,7 +186,7 @@ struct facade_iterator_category
|
||||
{
|
||||
};
|
||||
|
||||
}} // namespace boost::detail
|
||||
}}} // namespace boost::iterators::detail
|
||||
|
||||
# include <boost/iterator/detail/config_undef.hpp>
|
||||
|
||||
|
113
include/boost/iterator/detail/minimum_category.hpp
Executable file → Normal file
113
include/boost/iterator/detail/minimum_category.hpp
Executable file → Normal file
@ -4,113 +4,16 @@
|
||||
#ifndef MINIMUM_CATEGORY_DWA20031119_HPP
|
||||
# define MINIMUM_CATEGORY_DWA20031119_HPP
|
||||
|
||||
# include <boost/type_traits/is_convertible.hpp>
|
||||
# include <boost/type_traits/is_same.hpp>
|
||||
# include <boost/iterator/minimum_category.hpp>
|
||||
|
||||
# include <boost/mpl/aux_/lambda_support.hpp>
|
||||
namespace boost {
|
||||
|
||||
namespace boost { namespace detail {
|
||||
//
|
||||
// Returns the minimum category type or error_type
|
||||
// if T1 and T2 are unrelated.
|
||||
//
|
||||
// For compilers not supporting is_convertible this only
|
||||
// works with the new boost return and traversal category
|
||||
// types. The exact boost _types_ are required. No derived types
|
||||
// will work.
|
||||
//
|
||||
//
|
||||
template <bool GreaterEqual, bool LessEqual>
|
||||
struct minimum_category_impl
|
||||
# if BOOST_WORKAROUND(BOOST_MSVC, < 1300)
|
||||
{
|
||||
template <class T1, class T2> struct apply
|
||||
{
|
||||
typedef T2 type;
|
||||
};
|
||||
typedef void type;
|
||||
}
|
||||
# endif
|
||||
;
|
||||
// This import below (as well as the whole header) is for backward compatibility
|
||||
// with boost/token_iterator.hpp. It should be removed as soon as that header is fixed.
|
||||
namespace detail {
|
||||
using iterators::minimum_category;
|
||||
} // namespace detail
|
||||
|
||||
template <class T1, class T2>
|
||||
struct error_not_related_by_convertibility;
|
||||
|
||||
template <>
|
||||
struct minimum_category_impl<true,false>
|
||||
{
|
||||
template <class T1, class T2> struct apply
|
||||
{
|
||||
typedef T2 type;
|
||||
};
|
||||
};
|
||||
|
||||
template <>
|
||||
struct minimum_category_impl<false,true>
|
||||
{
|
||||
template <class T1, class T2> struct apply
|
||||
{
|
||||
typedef T1 type;
|
||||
};
|
||||
};
|
||||
|
||||
template <>
|
||||
struct minimum_category_impl<true,true>
|
||||
{
|
||||
template <class T1, class T2> struct apply
|
||||
{
|
||||
BOOST_STATIC_ASSERT((is_same<T1,T2>::value));
|
||||
typedef T1 type;
|
||||
};
|
||||
};
|
||||
|
||||
template <>
|
||||
struct minimum_category_impl<false,false>
|
||||
{
|
||||
template <class T1, class T2> struct apply
|
||||
: error_not_related_by_convertibility<T1,T2>
|
||||
{
|
||||
};
|
||||
};
|
||||
|
||||
template <class T1 = mpl::_1, class T2 = mpl::_2>
|
||||
struct minimum_category
|
||||
{
|
||||
typedef minimum_category_impl<
|
||||
# if BOOST_WORKAROUND(BOOST_MSVC, < 1300) // ETI workaround
|
||||
is_same<T2,int>::value ||
|
||||
# endif
|
||||
::boost::is_convertible<T1,T2>::value
|
||||
, ::boost::is_convertible<T2,T1>::value
|
||||
# if BOOST_WORKAROUND(BOOST_MSVC, < 1300) // ETI workaround
|
||||
|| is_same<T1,int>::value
|
||||
# endif
|
||||
> outer;
|
||||
|
||||
typedef typename outer::template apply<T1,T2> inner;
|
||||
typedef typename inner::type type;
|
||||
|
||||
BOOST_MPL_AUX_LAMBDA_SUPPORT(2,minimum_category,(T1,T2))
|
||||
};
|
||||
|
||||
template <>
|
||||
struct minimum_category<mpl::_1,mpl::_2>
|
||||
{
|
||||
template <class T1, class T2>
|
||||
struct apply : minimum_category<T1,T2>
|
||||
{};
|
||||
|
||||
BOOST_MPL_AUX_LAMBDA_SUPPORT_SPEC(2,minimum_category,(mpl::_1,mpl::_2))
|
||||
};
|
||||
|
||||
# if BOOST_WORKAROUND(BOOST_MSVC, < 1300) // ETI workaround
|
||||
template <>
|
||||
struct minimum_category<int,int>
|
||||
{
|
||||
typedef int type;
|
||||
};
|
||||
# endif
|
||||
|
||||
}} // namespace boost::detail
|
||||
} // namespace boost
|
||||
|
||||
#endif // MINIMUM_CATEGORY_DWA20031119_HPP
|
||||
|
@ -1,88 +0,0 @@
|
||||
// (C) Copyright David Abrahams 2002.
|
||||
// (C) Copyright Jeremy Siek 2002.
|
||||
// (C) Copyright Thomas Witt 2002.
|
||||
// (C) Copyright Jeffrey Lee Hellrung, Jr. 2012.
|
||||
// Distributed under the Boost Software License, Version 1.0. (See
|
||||
// accompanying file LICENSE_1_0.txt or copy at
|
||||
// http://www.boost.org/LICENSE_1_0.txt)
|
||||
#ifndef BOOST_OPERATOR_BRACKETS_DISPATCH_07102012JLH_HPP
|
||||
#define BOOST_OPERATOR_BRACKETS_DISPATCH_07102012JLH_HPP
|
||||
|
||||
#include <boost/iterator/detail/facade_iterator_category.hpp>
|
||||
|
||||
#include <boost/type_traits/is_pod.hpp>
|
||||
#include <boost/type_traits/remove_const.hpp>
|
||||
|
||||
#include <boost/mpl/if.hpp>
|
||||
|
||||
namespace boost { namespace detail {
|
||||
|
||||
// operator[] must return a proxy in case iterator destruction invalidates
|
||||
// referents.
|
||||
// To see why, consider the following implementation of operator[]:
|
||||
// reference operator[](difference_type n) const
|
||||
// { return *(*this + n); }
|
||||
// The problem here is that operator[] would return a reference created from
|
||||
// a temporary iterator.
|
||||
|
||||
template <class Value>
|
||||
struct operator_brackets_value
|
||||
{
|
||||
typedef Value result_type;
|
||||
template <class Iterator>
|
||||
static result_type apply(Iterator const & i)
|
||||
{ return *i; }
|
||||
};
|
||||
|
||||
template <class Iterator, class Reference>
|
||||
struct operator_brackets_const_proxy
|
||||
{
|
||||
class result_type
|
||||
{
|
||||
Iterator const m_i;
|
||||
explicit result_type(Iterator const & i) : m_i(i) { }
|
||||
friend struct operator_brackets_const_proxy;
|
||||
void operator=(result_type&);
|
||||
public:
|
||||
operator Reference() const { return *m_i; }
|
||||
};
|
||||
static result_type apply(Iterator const & i)
|
||||
{ return result_type(i); }
|
||||
};
|
||||
|
||||
template <class Iterator, class Reference>
|
||||
struct operator_brackets_proxy
|
||||
{
|
||||
class result_type
|
||||
{
|
||||
Iterator const m_i;
|
||||
explicit result_type(Iterator const & i) : m_i(i) { }
|
||||
friend struct operator_brackets_proxy;
|
||||
void operator=(result_type&);
|
||||
public:
|
||||
operator Reference() const { return *m_i; }
|
||||
operator_brackets_proxy const & operator=(
|
||||
typename Iterator::value_type const & x) const
|
||||
{ *m_i = x; return *this; }
|
||||
};
|
||||
static result_type apply(Iterator const & i)
|
||||
{ return result_type(i); }
|
||||
};
|
||||
|
||||
template <class Iterator, class ValueType, class Reference>
|
||||
struct operator_brackets_dispatch
|
||||
{
|
||||
typedef typename mpl::if_c<
|
||||
iterator_writability_disabled<ValueType,Reference>::value,
|
||||
typename mpl::if_c<
|
||||
boost::is_POD<ValueType>::value,
|
||||
operator_brackets_value<typename boost::remove_const<ValueType>::type>,
|
||||
operator_brackets_const_proxy<Iterator,Reference>
|
||||
>::type,
|
||||
operator_brackets_proxy<Iterator,Reference>
|
||||
>::type type;
|
||||
};
|
||||
|
||||
} } // namespace detail / namespace boost
|
||||
|
||||
#endif // #ifndef BOOST_OPERATOR_BRACKETS_DISPATCH_07102012JLH_HPP
|
@ -14,8 +14,9 @@
|
||||
#include <boost/type_traits/is_class.hpp>
|
||||
#include <boost/static_assert.hpp>
|
||||
|
||||
namespace boost
|
||||
{
|
||||
namespace boost {
|
||||
namespace iterators {
|
||||
|
||||
template <class Predicate, class Iterator>
|
||||
class filter_iterator;
|
||||
|
||||
@ -39,7 +40,7 @@ namespace boost
|
||||
> type;
|
||||
};
|
||||
}
|
||||
|
||||
|
||||
template <class Predicate, class Iterator>
|
||||
class filter_iterator
|
||||
: public detail::filter_iterator_base<Predicate, Iterator>::type
|
||||
@ -68,7 +69,7 @@ namespace boost
|
||||
// Don't allow use of this constructor if Predicate is a
|
||||
// function pointer type, since it will be 0.
|
||||
BOOST_STATIC_ASSERT(is_class<Predicate>::value);
|
||||
#endif
|
||||
#endif
|
||||
satisfy_predicate();
|
||||
}
|
||||
|
||||
@ -108,28 +109,29 @@ namespace boost
|
||||
};
|
||||
|
||||
template <class Predicate, class Iterator>
|
||||
filter_iterator<Predicate,Iterator>
|
||||
inline filter_iterator<Predicate,Iterator>
|
||||
make_filter_iterator(Predicate f, Iterator x, Iterator end = Iterator())
|
||||
{
|
||||
return filter_iterator<Predicate,Iterator>(f,x,end);
|
||||
}
|
||||
|
||||
template <class Predicate, class Iterator>
|
||||
filter_iterator<Predicate,Iterator>
|
||||
inline filter_iterator<Predicate,Iterator>
|
||||
make_filter_iterator(
|
||||
typename iterators::enable_if<
|
||||
is_class<Predicate>
|
||||
, Iterator
|
||||
>::type x
|
||||
, Iterator end = Iterator()
|
||||
#if BOOST_WORKAROUND(BOOST_MSVC, < 1300)
|
||||
, Predicate* = 0
|
||||
#endif
|
||||
)
|
||||
, Iterator end = Iterator())
|
||||
{
|
||||
return filter_iterator<Predicate,Iterator>(x,end);
|
||||
}
|
||||
|
||||
} // namespace iterators
|
||||
|
||||
using iterators::filter_iterator;
|
||||
using iterators::make_filter_iterator;
|
||||
|
||||
} // namespace boost
|
||||
|
||||
#endif // BOOST_FILTER_ITERATOR_23022003THW_HPP
|
||||
|
@ -20,6 +20,8 @@
|
||||
|
||||
namespace boost {
|
||||
|
||||
namespace iterators {
|
||||
|
||||
namespace impl {
|
||||
|
||||
template <class Function, class Input>
|
||||
@ -33,7 +35,7 @@ namespace boost {
|
||||
{
|
||||
public:
|
||||
function_input_iterator() {}
|
||||
function_input_iterator(Function & f_, Input state_ = Input())
|
||||
function_input_iterator(Function & f_, Input state_ = Input())
|
||||
: f(&f_), state(state_) {}
|
||||
|
||||
void increment() {
|
||||
@ -44,7 +46,7 @@ namespace boost {
|
||||
++state;
|
||||
}
|
||||
|
||||
typename Function::result_type const &
|
||||
typename Function::result_type const &
|
||||
dereference() const {
|
||||
return (value ? value : value = (*f)()).get();
|
||||
}
|
||||
@ -109,7 +111,7 @@ namespace boost {
|
||||
} // namespace impl
|
||||
|
||||
template <class Function, class Input>
|
||||
class function_input_iterator
|
||||
class function_input_iterator
|
||||
: public mpl::if_<
|
||||
function_types::is_function_pointer<Function>,
|
||||
impl::function_pointer_input_iterator<Function,Input>,
|
||||
@ -154,7 +156,14 @@ namespace boost {
|
||||
bool operator==(infinite &) const { return false; };
|
||||
bool operator==(infinite const &) const { return false; };
|
||||
};
|
||||
}
|
||||
|
||||
} // namespace iterators
|
||||
|
||||
using iterators::function_input_iterator;
|
||||
using iterators::make_function_input_iterator;
|
||||
using iterators::infinite;
|
||||
|
||||
} // namespace boost
|
||||
|
||||
#endif
|
||||
|
||||
|
@ -30,12 +30,13 @@
|
||||
# include <boost/scoped_ptr.hpp>
|
||||
# include <boost/mpl/bool.hpp>
|
||||
# include <memory>
|
||||
#endif
|
||||
#endif
|
||||
|
||||
#include <boost/iterator/detail/config_def.hpp> // must be last #include
|
||||
|
||||
namespace boost
|
||||
{
|
||||
namespace boost {
|
||||
namespace iterators {
|
||||
|
||||
template <class Iter, class Value, class Category, class Reference, class Difference>
|
||||
class indirect_iterator;
|
||||
|
||||
@ -44,8 +45,8 @@ namespace boost
|
||||
template <class Iter, class Value, class Category, class Reference, class Difference>
|
||||
struct indirect_base
|
||||
{
|
||||
typedef typename iterator_traits<Iter>::value_type dereferenceable;
|
||||
|
||||
typedef typename boost::detail::iterator_traits<Iter>::value_type dereferenceable;
|
||||
|
||||
typedef iterator_adaptor<
|
||||
indirect_iterator<Iter, Value, Category, Reference, Difference>
|
||||
, Iter
|
||||
@ -69,7 +70,7 @@ namespace boost
|
||||
struct indirect_base<int, int, int, int, int> {};
|
||||
} // namespace detail
|
||||
|
||||
|
||||
|
||||
template <
|
||||
class Iterator
|
||||
, class Value = use_default
|
||||
@ -107,14 +108,14 @@ namespace boost
|
||||
: super_t(y.base())
|
||||
{}
|
||||
|
||||
private:
|
||||
private:
|
||||
typename super_t::reference dereference() const
|
||||
{
|
||||
# if BOOST_WORKAROUND(__BORLANDC__, < 0x5A0 )
|
||||
return const_cast<super_t::reference>(**this->base());
|
||||
# else
|
||||
return **this->base();
|
||||
# endif
|
||||
# endif
|
||||
}
|
||||
};
|
||||
|
||||
@ -132,6 +133,11 @@ namespace boost
|
||||
return indirect_iterator<Iter, Traits>(x);
|
||||
}
|
||||
|
||||
} // namespace iterators
|
||||
|
||||
using iterators::indirect_iterator;
|
||||
using iterators::make_indirect_iterator;
|
||||
|
||||
} // namespace boost
|
||||
|
||||
#include <boost/iterator/detail/config_undef.hpp>
|
||||
|
@ -14,8 +14,8 @@
|
||||
|
||||
# include <boost/iterator/detail/config_def.hpp> // must appear last
|
||||
|
||||
namespace boost
|
||||
{
|
||||
namespace boost {
|
||||
namespace iterators {
|
||||
|
||||
//
|
||||
// Meta function that determines whether two
|
||||
@ -27,7 +27,7 @@ namespace boost
|
||||
// standards requirements on constant/mutable container
|
||||
// iterators (23.1 [lib.container.requirements]).
|
||||
//
|
||||
// For compilers that don't support is_convertible
|
||||
// For compilers that don't support is_convertible
|
||||
// is_interoperable gives false positives. See comments
|
||||
// on operator implementation for consequences.
|
||||
//
|
||||
@ -40,9 +40,13 @@ namespace boost
|
||||
is_convertible< A, B >
|
||||
, is_convertible< B, A > >
|
||||
# endif
|
||||
{
|
||||
{
|
||||
};
|
||||
|
||||
} // namespace iterators
|
||||
|
||||
using iterators::is_interoperable;
|
||||
|
||||
} // namespace boost
|
||||
|
||||
# include <boost/iterator/detail/config_undef.hpp>
|
||||
|
59
include/boost/iterator/is_lvalue_iterator.hpp
Executable file → Normal file
59
include/boost/iterator/is_lvalue_iterator.hpp
Executable file → Normal file
@ -9,16 +9,21 @@
|
||||
#include <boost/detail/workaround.hpp>
|
||||
#include <boost/detail/iterator.hpp>
|
||||
|
||||
#include <boost/type_traits/add_lvalue_reference.hpp>
|
||||
#include <boost/iterator/detail/any_conversion_eater.hpp>
|
||||
#include <boost/mpl/bool.hpp>
|
||||
#include <boost/mpl/aux_/lambda_support.hpp>
|
||||
|
||||
// should be the last #includes
|
||||
#include <boost/type_traits/detail/bool_trait_def.hpp>
|
||||
#include <boost/type_traits/integral_constant.hpp>
|
||||
#include <boost/iterator/detail/config_def.hpp>
|
||||
|
||||
#ifndef BOOST_NO_IS_CONVERTIBLE
|
||||
|
||||
namespace boost {
|
||||
|
||||
|
||||
namespace iterators {
|
||||
|
||||
namespace detail
|
||||
{
|
||||
#ifndef BOOST_NO_LVALUE_RETURN_DETECTION
|
||||
@ -26,20 +31,20 @@ namespace detail
|
||||
// to the expression's result if <expression> is an lvalue, or
|
||||
// not_an_lvalue() otherwise.
|
||||
struct not_an_lvalue {};
|
||||
|
||||
|
||||
template <class T>
|
||||
T& lvalue_preserver(T&, int);
|
||||
|
||||
|
||||
template <class U>
|
||||
not_an_lvalue lvalue_preserver(U const&, ...);
|
||||
|
||||
|
||||
# define BOOST_LVALUE_PRESERVER(expr) detail::lvalue_preserver(expr,0)
|
||||
|
||||
|
||||
#else
|
||||
|
||||
|
||||
# define BOOST_LVALUE_PRESERVER(expr) expr
|
||||
|
||||
#endif
|
||||
|
||||
#endif
|
||||
|
||||
// Guts of is_lvalue_iterator. Value is the iterator's value_type
|
||||
// and the result is computed in the nested rebind template.
|
||||
@ -50,17 +55,17 @@ namespace detail
|
||||
// convertible to Value const&
|
||||
struct conversion_eater
|
||||
{
|
||||
conversion_eater(Value&);
|
||||
conversion_eater(typename add_lvalue_reference<Value>::type);
|
||||
};
|
||||
|
||||
static char tester(conversion_eater, int);
|
||||
static char (& tester(any_conversion_eater, ...) )[2];
|
||||
|
||||
|
||||
template <class It>
|
||||
struct rebind
|
||||
{
|
||||
static It& x;
|
||||
|
||||
|
||||
BOOST_STATIC_CONSTANT(
|
||||
bool
|
||||
, value = (
|
||||
@ -75,7 +80,7 @@ namespace detail
|
||||
};
|
||||
|
||||
#undef BOOST_LVALUE_PRESERVER
|
||||
|
||||
|
||||
//
|
||||
// void specializations to handle std input and output iterators
|
||||
//
|
||||
@ -132,19 +137,29 @@ namespace detail
|
||||
{};
|
||||
} // namespace detail
|
||||
|
||||
// Define the trait with full mpl lambda capability and various broken
|
||||
// compiler workarounds
|
||||
BOOST_TT_AUX_BOOL_TRAIT_DEF1(
|
||||
is_lvalue_iterator,T,::boost::detail::is_readable_lvalue_iterator_impl<T>::value)
|
||||
|
||||
BOOST_TT_AUX_BOOL_TRAIT_DEF1(
|
||||
is_non_const_lvalue_iterator,T,::boost::detail::is_non_const_lvalue_iterator_impl<T>::value)
|
||||
|
||||
template< typename T > struct is_lvalue_iterator
|
||||
: public ::boost::integral_constant<bool,::boost::iterators::detail::is_readable_lvalue_iterator_impl<T>::value>
|
||||
{
|
||||
public:
|
||||
BOOST_MPL_AUX_LAMBDA_SUPPORT(1,is_lvalue_iterator,(T))
|
||||
};
|
||||
|
||||
template< typename T > struct is_non_const_lvalue_iterator
|
||||
: public ::boost::integral_constant<bool,::boost::iterators::detail::is_non_const_lvalue_iterator_impl<T>::value>
|
||||
{
|
||||
public:
|
||||
BOOST_MPL_AUX_LAMBDA_SUPPORT(1,is_non_const_lvalue_iterator,(T))
|
||||
};
|
||||
|
||||
} // namespace iterators
|
||||
|
||||
using iterators::is_lvalue_iterator;
|
||||
using iterators::is_non_const_lvalue_iterator;
|
||||
|
||||
} // namespace boost
|
||||
|
||||
#endif
|
||||
|
||||
#include <boost/iterator/detail/config_undef.hpp>
|
||||
#include <boost/type_traits/detail/bool_trait_undef.hpp>
|
||||
|
||||
#endif // IS_LVALUE_ITERATOR_DWA2003112_HPP
|
||||
|
32
include/boost/iterator/is_readable_iterator.hpp
Executable file → Normal file
32
include/boost/iterator/is_readable_iterator.hpp
Executable file → Normal file
@ -5,18 +5,22 @@
|
||||
# define IS_READABLE_ITERATOR_DWA2003112_HPP
|
||||
|
||||
#include <boost/mpl/bool.hpp>
|
||||
#include <boost/mpl/aux_/lambda_support.hpp>
|
||||
#include <boost/detail/iterator.hpp>
|
||||
#include <boost/type_traits/add_lvalue_reference.hpp>
|
||||
|
||||
#include <boost/type_traits/detail/bool_trait_def.hpp>
|
||||
#include <boost/iterator/detail/any_conversion_eater.hpp>
|
||||
|
||||
// should be the last #include
|
||||
#include <boost/type_traits/integral_constant.hpp>
|
||||
#include <boost/iterator/detail/config_def.hpp>
|
||||
|
||||
#ifndef BOOST_NO_IS_CONVERTIBLE
|
||||
|
||||
namespace boost {
|
||||
|
||||
|
||||
namespace iterators {
|
||||
|
||||
namespace detail
|
||||
{
|
||||
// Guts of is_readable_iterator. Value is the iterator's value_type
|
||||
@ -24,14 +28,14 @@ namespace detail
|
||||
template <class Value>
|
||||
struct is_readable_iterator_impl
|
||||
{
|
||||
static char tester(Value&, int);
|
||||
static char tester(typename add_lvalue_reference<Value>::type, int);
|
||||
static char (& tester(any_conversion_eater, ...) )[2];
|
||||
|
||||
|
||||
template <class It>
|
||||
struct rebind
|
||||
{
|
||||
static It& x;
|
||||
|
||||
|
||||
BOOST_STATIC_CONSTANT(
|
||||
bool
|
||||
, value = (
|
||||
@ -44,7 +48,7 @@ namespace detail
|
||||
};
|
||||
|
||||
#undef BOOST_READABLE_PRESERVER
|
||||
|
||||
|
||||
//
|
||||
// void specializations to handle std input and output iterators
|
||||
//
|
||||
@ -94,11 +98,17 @@ namespace detail
|
||||
{};
|
||||
} // namespace detail
|
||||
|
||||
// Define the trait with full mpl lambda capability and various broken
|
||||
// compiler workarounds
|
||||
BOOST_TT_AUX_BOOL_TRAIT_DEF1(
|
||||
is_readable_iterator,T,::boost::detail::is_readable_iterator_impl2<T>::value)
|
||||
|
||||
template< typename T > struct is_readable_iterator
|
||||
: public ::boost::integral_constant<bool,::boost::iterators::detail::is_readable_iterator_impl2<T>::value>
|
||||
{
|
||||
public:
|
||||
BOOST_MPL_AUX_LAMBDA_SUPPORT(1,is_readable_iterator,(T))
|
||||
};
|
||||
|
||||
} // namespace iterators
|
||||
|
||||
using iterators::is_readable_iterator;
|
||||
|
||||
} // namespace boost
|
||||
|
||||
#endif
|
||||
|
@ -31,28 +31,33 @@
|
||||
|
||||
#include <boost/iterator/iterator_traits.hpp>
|
||||
|
||||
namespace boost
|
||||
{
|
||||
namespace boost {
|
||||
namespace iterators {
|
||||
|
||||
// Used as a default template argument internally, merely to
|
||||
// indicate "use the default", this can also be passed by users
|
||||
// explicitly in order to specify that the default should be used.
|
||||
struct use_default;
|
||||
|
||||
# ifndef BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
|
||||
// the incompleteness of use_default causes massive problems for
|
||||
// is_convertible (naturally). This workaround is fortunately not
|
||||
// needed for vc6/vc7.
|
||||
template<class To>
|
||||
struct is_convertible<use_default,To>
|
||||
: mpl::false_ {};
|
||||
# endif
|
||||
|
||||
|
||||
} // namespace iterators
|
||||
|
||||
using iterators::use_default;
|
||||
|
||||
// the incompleteness of use_default causes massive problems for
|
||||
// is_convertible (naturally). This workaround is fortunately not
|
||||
// needed for vc6/vc7.
|
||||
template<class To>
|
||||
struct is_convertible<use_default,To>
|
||||
: mpl::false_ {};
|
||||
|
||||
namespace iterators {
|
||||
|
||||
namespace detail
|
||||
{
|
||||
|
||||
//
|
||||
//
|
||||
// Result type used in enable_if_convertible meta function.
|
||||
// This can be an incomplete type, as only pointers to
|
||||
// This can be an incomplete type, as only pointers to
|
||||
// enable_if_convertible< ... >::type are used.
|
||||
// We could have used void for this, but conversion to
|
||||
// void* is just to easy.
|
||||
@ -73,7 +78,7 @@ namespace boost
|
||||
// public iterator_adaptor< adapted_iterator<Iterator>, Iterator >
|
||||
// {
|
||||
// public:
|
||||
//
|
||||
//
|
||||
// ...
|
||||
//
|
||||
// template <class OtherIterator>
|
||||
@ -92,38 +97,23 @@ namespace boost
|
||||
// and not at the actual instantiation.
|
||||
//
|
||||
// enable_if_interoperable can be safely used in user code. It falls back to
|
||||
// always enabled for compilers that don't support enable_if or is_convertible.
|
||||
// There is no need for compiler specific workarounds in user code.
|
||||
// always enabled for compilers that don't support enable_if or is_convertible.
|
||||
// There is no need for compiler specific workarounds in user code.
|
||||
//
|
||||
// The operators implementation relies on boost::is_convertible not returning
|
||||
// false positives for user/library defined iterator types. See comments
|
||||
// on operator implementation for consequences.
|
||||
//
|
||||
# if BOOST_WORKAROUND(BOOST_MSVC, <= 1300)
|
||||
|
||||
template<typename From, typename To>
|
||||
struct enable_if_convertible
|
||||
{
|
||||
typedef typename mpl::if_<
|
||||
mpl::or_<
|
||||
is_same<From,To>
|
||||
, is_convertible<From, To>
|
||||
>
|
||||
, boost::detail::enable_type
|
||||
, int&
|
||||
>::type type;
|
||||
};
|
||||
|
||||
# elif defined(BOOST_NO_IS_CONVERTIBLE) || defined(BOOST_NO_SFINAE)
|
||||
|
||||
# if defined(BOOST_NO_IS_CONVERTIBLE) || defined(BOOST_NO_SFINAE)
|
||||
|
||||
template <class From, class To>
|
||||
struct enable_if_convertible
|
||||
{
|
||||
typedef boost::detail::enable_type type;
|
||||
typedef boost::iterators::detail::enable_type type;
|
||||
};
|
||||
|
||||
# elif BOOST_WORKAROUND(_MSC_FULL_VER, BOOST_TESTED_AT(13102292)) && BOOST_MSVC > 1300
|
||||
|
||||
|
||||
# elif BOOST_WORKAROUND(_MSC_FULL_VER, BOOST_TESTED_AT(13102292))
|
||||
|
||||
// For some reason vc7.1 needs us to "cut off" instantiation
|
||||
// of is_convertible in a few cases.
|
||||
template<typename From, typename To>
|
||||
@ -133,22 +123,22 @@ namespace boost
|
||||
is_same<From,To>
|
||||
, is_convertible<From, To>
|
||||
>
|
||||
, boost::detail::enable_type
|
||||
, boost::iterators::detail::enable_type
|
||||
>
|
||||
{};
|
||||
|
||||
# else
|
||||
|
||||
|
||||
# else
|
||||
|
||||
template<typename From, typename To>
|
||||
struct enable_if_convertible
|
||||
: iterators::enable_if<
|
||||
is_convertible<From, To>
|
||||
, boost::detail::enable_type
|
||||
, boost::iterators::detail::enable_type
|
||||
>
|
||||
{};
|
||||
|
||||
|
||||
# endif
|
||||
|
||||
|
||||
//
|
||||
// Default template argument handling for iterator_adaptor
|
||||
//
|
||||
@ -180,9 +170,9 @@ namespace boost
|
||||
{
|
||||
typedef iterator_facade<
|
||||
Derived
|
||||
|
||||
|
||||
# ifdef BOOST_ITERATOR_REF_CONSTNESS_KILLS_WRITABILITY
|
||||
, typename boost::detail::ia_dflt_help<
|
||||
, typename boost::iterators::detail::ia_dflt_help<
|
||||
Value
|
||||
, mpl::eval_if<
|
||||
is_same<Reference,use_default>
|
||||
@ -191,17 +181,17 @@ namespace boost
|
||||
>
|
||||
>::type
|
||||
# else
|
||||
, typename boost::detail::ia_dflt_help<
|
||||
, typename boost::iterators::detail::ia_dflt_help<
|
||||
Value, iterator_value<Base>
|
||||
>::type
|
||||
# endif
|
||||
|
||||
, typename boost::detail::ia_dflt_help<
|
||||
|
||||
, typename boost::iterators::detail::ia_dflt_help<
|
||||
Traversal
|
||||
, iterator_traversal<Base>
|
||||
>::type
|
||||
|
||||
, typename boost::detail::ia_dflt_help<
|
||||
, typename boost::iterators::detail::ia_dflt_help<
|
||||
Reference
|
||||
, mpl::eval_if<
|
||||
is_same<Value,use_default>
|
||||
@ -210,13 +200,13 @@ namespace boost
|
||||
>
|
||||
>::type
|
||||
|
||||
, typename boost::detail::ia_dflt_help<
|
||||
, typename boost::iterators::detail::ia_dflt_help<
|
||||
Difference, iterator_difference<Base>
|
||||
>::type
|
||||
>
|
||||
type;
|
||||
};
|
||||
|
||||
|
||||
// workaround for aC++ CR JAGaf33512
|
||||
template <class Tr1, class Tr2>
|
||||
inline void iterator_adaptor_assert_traversal ()
|
||||
@ -224,7 +214,7 @@ namespace boost
|
||||
BOOST_STATIC_ASSERT((is_convertible<Tr1, Tr2>::value));
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
//
|
||||
// Iterator Adaptor
|
||||
//
|
||||
@ -259,14 +249,14 @@ namespace boost
|
||||
, class Difference = use_default
|
||||
>
|
||||
class iterator_adaptor
|
||||
: public boost::detail::iterator_adaptor_base<
|
||||
: public boost::iterators::detail::iterator_adaptor_base<
|
||||
Derived, Base, Value, Traversal, Reference, Difference
|
||||
>::type
|
||||
{
|
||||
friend class iterator_core_access;
|
||||
|
||||
protected:
|
||||
typedef typename boost::detail::iterator_adaptor_base<
|
||||
typedef typename boost::iterators::detail::iterator_adaptor_base<
|
||||
Derived, Base, Value, Traversal, Reference, Difference
|
||||
>::type super_t;
|
||||
public:
|
||||
@ -285,7 +275,7 @@ namespace boost
|
||||
protected:
|
||||
// for convenience in derived classes
|
||||
typedef iterator_adaptor<Derived,Base,Value,Traversal,Reference,Difference> iterator_adaptor_;
|
||||
|
||||
|
||||
//
|
||||
// lvalue access to the Base object for Derived
|
||||
//
|
||||
@ -301,13 +291,13 @@ namespace boost
|
||||
// to prevent temptation for Derived classes to use it, which
|
||||
// will often result in an error. Derived classes should use
|
||||
// base_reference(), above, to get direct access to m_iterator.
|
||||
//
|
||||
//
|
||||
typename super_t::reference dereference() const
|
||||
{ return *m_iterator; }
|
||||
|
||||
template <
|
||||
class OtherDerived, class OtherIterator, class V, class C, class R, class D
|
||||
>
|
||||
>
|
||||
bool equal(iterator_adaptor<OtherDerived, OtherIterator, V, C, R, D> const& x) const
|
||||
{
|
||||
// Maybe readd with same_distance
|
||||
@ -322,17 +312,17 @@ namespace boost
|
||||
>::type my_traversal;
|
||||
|
||||
# define BOOST_ITERATOR_ADAPTOR_ASSERT_TRAVERSAL(cat) \
|
||||
boost::detail::iterator_adaptor_assert_traversal<my_traversal, cat>();
|
||||
boost::iterators::detail::iterator_adaptor_assert_traversal<my_traversal, cat>();
|
||||
|
||||
void advance(typename super_t::difference_type n)
|
||||
{
|
||||
BOOST_ITERATOR_ADAPTOR_ASSERT_TRAVERSAL(random_access_traversal_tag)
|
||||
m_iterator += n;
|
||||
}
|
||||
|
||||
|
||||
void increment() { ++m_iterator; }
|
||||
|
||||
void decrement()
|
||||
void decrement()
|
||||
{
|
||||
BOOST_ITERATOR_ADAPTOR_ASSERT_TRAVERSAL(bidirectional_traversal_tag)
|
||||
--m_iterator;
|
||||
@ -340,7 +330,7 @@ namespace boost
|
||||
|
||||
template <
|
||||
class OtherDerived, class OtherIterator, class V, class C, class R, class D
|
||||
>
|
||||
>
|
||||
typename super_t::difference_type distance_to(
|
||||
iterator_adaptor<OtherDerived, OtherIterator, V, C, R, D> const& y) const
|
||||
{
|
||||
@ -353,11 +343,16 @@ namespace boost
|
||||
}
|
||||
|
||||
# undef BOOST_ITERATOR_ADAPTOR_ASSERT_TRAVERSAL
|
||||
|
||||
|
||||
private: // data members
|
||||
Base m_iterator;
|
||||
};
|
||||
|
||||
} // namespace iterators
|
||||
|
||||
using iterators::iterator_adaptor;
|
||||
using iterators::enable_if_convertible;
|
||||
|
||||
} // namespace boost
|
||||
|
||||
#include <boost/iterator/detail/config_undef.hpp>
|
||||
|
@ -20,7 +20,6 @@
|
||||
|
||||
#include <boost/concept_archetype.hpp>
|
||||
|
||||
#include <boost/mpl/aux_/msvc_eti_base.hpp>
|
||||
#include <boost/mpl/bitand.hpp>
|
||||
#include <boost/mpl/int.hpp>
|
||||
#include <boost/mpl/equal_to.hpp>
|
||||
@ -32,6 +31,7 @@
|
||||
#include <cstddef>
|
||||
|
||||
namespace boost {
|
||||
namespace iterators {
|
||||
|
||||
template <class Value, class AccessCategory>
|
||||
struct access_archetype;
|
||||
@ -39,7 +39,7 @@ struct access_archetype;
|
||||
template <class Derived, class Value, class AccessCategory, class TraversalCategory>
|
||||
struct traversal_archetype;
|
||||
|
||||
namespace iterator_archetypes
|
||||
namespace archetypes
|
||||
{
|
||||
enum {
|
||||
readable_iterator_bit = 1
|
||||
@ -51,19 +51,19 @@ namespace iterator_archetypes
|
||||
// Not quite tags, since dispatching wouldn't work.
|
||||
typedef mpl::int_<readable_iterator_bit>::type readable_iterator_t;
|
||||
typedef mpl::int_<writable_iterator_bit>::type writable_iterator_t;
|
||||
|
||||
|
||||
typedef mpl::int_<
|
||||
(readable_iterator_bit|writable_iterator_bit)
|
||||
>::type readable_writable_iterator_t;
|
||||
|
||||
|
||||
typedef mpl::int_<
|
||||
(readable_iterator_bit|lvalue_iterator_bit)
|
||||
>::type readable_lvalue_iterator_t;
|
||||
|
||||
|
||||
typedef mpl::int_<
|
||||
(lvalue_iterator_bit|writable_iterator_bit)
|
||||
>::type writable_lvalue_iterator_t;
|
||||
|
||||
|
||||
typedef mpl::int_<swappable_iterator_bit>::type swappable_iterator_t;
|
||||
typedef mpl::int_<lvalue_iterator_bit>::type lvalue_iterator_t;
|
||||
|
||||
@ -119,29 +119,27 @@ namespace detail
|
||||
|
||||
template <class Value, class AccessCategory, class TraversalCategory>
|
||||
struct operator_brackets
|
||||
: mpl::aux::msvc_eti_base<
|
||||
typename mpl::eval_if<
|
||||
is_convertible<TraversalCategory, random_access_traversal_tag>
|
||||
, mpl::eval_if<
|
||||
iterator_archetypes::has_access<
|
||||
AccessCategory
|
||||
, iterator_archetypes::writable_iterator_t
|
||||
>
|
||||
, mpl::identity<writable_operator_brackets<Value> >
|
||||
, mpl::if_<
|
||||
iterator_archetypes::has_access<
|
||||
AccessCategory
|
||||
, iterator_archetypes::readable_iterator_t
|
||||
>
|
||||
, readable_operator_brackets<Value>
|
||||
, no_operator_brackets
|
||||
>
|
||||
: mpl::eval_if<
|
||||
is_convertible<TraversalCategory, random_access_traversal_tag>
|
||||
, mpl::eval_if<
|
||||
archetypes::has_access<
|
||||
AccessCategory
|
||||
, archetypes::writable_iterator_t
|
||||
>
|
||||
, mpl::identity<no_operator_brackets>
|
||||
>::type
|
||||
, mpl::identity<writable_operator_brackets<Value> >
|
||||
, mpl::if_<
|
||||
archetypes::has_access<
|
||||
AccessCategory
|
||||
, archetypes::readable_iterator_t
|
||||
>
|
||||
, readable_operator_brackets<Value>
|
||||
, no_operator_brackets
|
||||
>
|
||||
>
|
||||
, mpl::identity<no_operator_brackets>
|
||||
>::type
|
||||
{};
|
||||
|
||||
|
||||
template <class TraversalCategory>
|
||||
struct traversal_archetype_impl
|
||||
{
|
||||
@ -154,18 +152,16 @@ namespace detail
|
||||
|
||||
template <class Derived, class Value, class TraversalCategory>
|
||||
struct traversal_archetype_
|
||||
: mpl::aux::msvc_eti_base<
|
||||
typename traversal_archetype_impl<TraversalCategory>::template archetype<Derived,Value>
|
||||
>::type
|
||||
: traversal_archetype_impl<TraversalCategory>::template archetype<Derived,Value>
|
||||
{
|
||||
typedef typename
|
||||
traversal_archetype_impl<TraversalCategory>::template archetype<Derived,Value>
|
||||
base;
|
||||
|
||||
|
||||
traversal_archetype_() {}
|
||||
|
||||
traversal_archetype_(ctor_arg arg)
|
||||
: base(arg)
|
||||
: base(arg)
|
||||
{}
|
||||
};
|
||||
|
||||
@ -196,7 +192,7 @@ namespace detail
|
||||
explicit archetype(ctor_arg arg)
|
||||
: traversal_archetype_<Derived, Value, incrementable_traversal_tag>(arg)
|
||||
{}
|
||||
|
||||
|
||||
typedef std::ptrdiff_t difference_type;
|
||||
};
|
||||
};
|
||||
@ -204,13 +200,7 @@ namespace detail
|
||||
template <class Derived, class Value>
|
||||
bool operator==(traversal_archetype_<Derived, Value, single_pass_traversal_tag> const&,
|
||||
traversal_archetype_<Derived, Value, single_pass_traversal_tag> const&) { return true; }
|
||||
|
||||
#if BOOST_WORKAROUND(BOOST_MSVC, <= 1300)
|
||||
// doesn't seem to pick up != from equality_comparable
|
||||
template <class Derived, class Value>
|
||||
bool operator!=(traversal_archetype_<Derived, Value, single_pass_traversal_tag> const&,
|
||||
traversal_archetype_<Derived, Value, single_pass_traversal_tag> const&) { return true; }
|
||||
#endif
|
||||
|
||||
template <>
|
||||
struct traversal_archetype_impl<forward_traversal_tag>
|
||||
{
|
||||
@ -218,7 +208,7 @@ namespace detail
|
||||
struct archetype
|
||||
: public traversal_archetype_<Derived, Value, single_pass_traversal_tag>
|
||||
{
|
||||
archetype()
|
||||
archetype()
|
||||
: traversal_archetype_<Derived, Value, single_pass_traversal_tag>(ctor_arg())
|
||||
{}
|
||||
};
|
||||
@ -241,7 +231,7 @@ namespace detail
|
||||
{
|
||||
template<class Derived, class Value>
|
||||
struct archetype
|
||||
: public traversal_archetype_<Derived, Value, bidirectional_traversal_tag>
|
||||
: public traversal_archetype_<Derived, Value, bidirectional_traversal_tag>
|
||||
{
|
||||
Derived& operator+=(std::ptrdiff_t) { return static_object<Derived>::get(); }
|
||||
Derived& operator-=(std::ptrdiff_t) { return static_object<Derived>::get(); }
|
||||
@ -300,7 +290,7 @@ namespace detail
|
||||
|
||||
|
||||
template <class> struct undefined;
|
||||
|
||||
|
||||
template <class AccessCategory>
|
||||
struct iterator_access_archetype_impl
|
||||
{
|
||||
@ -309,17 +299,15 @@ struct iterator_access_archetype_impl
|
||||
|
||||
template <class Value, class AccessCategory>
|
||||
struct iterator_access_archetype
|
||||
: mpl::aux::msvc_eti_base<
|
||||
typename iterator_access_archetype_impl<
|
||||
AccessCategory
|
||||
>::template archetype<Value>
|
||||
>::type
|
||||
: iterator_access_archetype_impl<
|
||||
AccessCategory
|
||||
>::template archetype<Value>
|
||||
{
|
||||
};
|
||||
|
||||
template <>
|
||||
struct iterator_access_archetype_impl<
|
||||
iterator_archetypes::readable_iterator_t
|
||||
archetypes::readable_iterator_t
|
||||
>
|
||||
{
|
||||
template <class Value>
|
||||
@ -337,15 +325,13 @@ struct iterator_access_archetype_impl<
|
||||
|
||||
template <>
|
||||
struct iterator_access_archetype_impl<
|
||||
iterator_archetypes::writable_iterator_t
|
||||
archetypes::writable_iterator_t
|
||||
>
|
||||
{
|
||||
template <class Value>
|
||||
struct archetype
|
||||
{
|
||||
# if !BOOST_WORKAROUND(BOOST_MSVC, <= 1300)
|
||||
BOOST_STATIC_ASSERT(!is_const<Value>::value);
|
||||
# endif
|
||||
typedef void value_type;
|
||||
typedef void reference;
|
||||
typedef void pointer;
|
||||
@ -356,13 +342,13 @@ struct iterator_access_archetype_impl<
|
||||
|
||||
template <>
|
||||
struct iterator_access_archetype_impl<
|
||||
iterator_archetypes::readable_writable_iterator_t
|
||||
archetypes::readable_writable_iterator_t
|
||||
>
|
||||
{
|
||||
template <class Value>
|
||||
struct archetype
|
||||
: public virtual iterator_access_archetype<
|
||||
Value, iterator_archetypes::readable_iterator_t
|
||||
Value, archetypes::readable_iterator_t
|
||||
>
|
||||
{
|
||||
typedef detail::read_write_proxy<Value> reference;
|
||||
@ -372,12 +358,12 @@ struct iterator_access_archetype_impl<
|
||||
};
|
||||
|
||||
template <>
|
||||
struct iterator_access_archetype_impl<iterator_archetypes::readable_lvalue_iterator_t>
|
||||
struct iterator_access_archetype_impl<archetypes::readable_lvalue_iterator_t>
|
||||
{
|
||||
template <class Value>
|
||||
struct archetype
|
||||
: public virtual iterator_access_archetype<
|
||||
Value, iterator_archetypes::readable_iterator_t
|
||||
Value, archetypes::readable_iterator_t
|
||||
>
|
||||
{
|
||||
typedef Value& reference;
|
||||
@ -386,28 +372,26 @@ struct iterator_access_archetype_impl<iterator_archetypes::readable_lvalue_itera
|
||||
Value* operator->() const { return 0; }
|
||||
};
|
||||
};
|
||||
|
||||
|
||||
template <>
|
||||
struct iterator_access_archetype_impl<iterator_archetypes::writable_lvalue_iterator_t>
|
||||
struct iterator_access_archetype_impl<archetypes::writable_lvalue_iterator_t>
|
||||
{
|
||||
template <class Value>
|
||||
struct archetype
|
||||
: public virtual iterator_access_archetype<
|
||||
Value, iterator_archetypes::readable_lvalue_iterator_t
|
||||
Value, archetypes::readable_lvalue_iterator_t
|
||||
>
|
||||
{
|
||||
# if !BOOST_WORKAROUND(BOOST_MSVC, <= 1300)
|
||||
BOOST_STATIC_ASSERT((!is_const<Value>::value));
|
||||
# endif
|
||||
};
|
||||
};
|
||||
|
||||
|
||||
|
||||
template <class Value, class AccessCategory, class TraversalCategory>
|
||||
struct iterator_archetype;
|
||||
|
||||
|
||||
template <class Value, class AccessCategory, class TraversalCategory>
|
||||
struct traversal_archetype_base
|
||||
struct traversal_archetype_base
|
||||
: detail::operator_brackets<
|
||||
typename remove_cv<Value>::type
|
||||
, AccessCategory
|
||||
@ -429,12 +413,12 @@ namespace detail
|
||||
, traversal_archetype_base<Value, AccessCategory, TraversalCategory>
|
||||
{
|
||||
typedef iterator_access_archetype<Value, AccessCategory> access;
|
||||
|
||||
|
||||
typedef typename detail::facade_iterator_category<
|
||||
TraversalCategory
|
||||
, typename mpl::eval_if<
|
||||
iterator_archetypes::has_access<
|
||||
AccessCategory, iterator_archetypes::writable_iterator_t
|
||||
archetypes::has_access<
|
||||
AccessCategory, archetypes::writable_iterator_t
|
||||
>
|
||||
, remove_const<Value>
|
||||
, add_const<Value>
|
||||
@ -467,18 +451,18 @@ struct iterator_archetype
|
||||
, public detail::iterator_archetype_base<
|
||||
Value, AccessCategory, TraversalCategory
|
||||
>::workaround_iterator_base
|
||||
# endif
|
||||
# endif
|
||||
{
|
||||
// Derivation from std::iterator above caused references to nested
|
||||
// types to be ambiguous, so now we have to redeclare them all
|
||||
// here.
|
||||
# if BOOST_WORKAROUND(BOOST_DINKUMWARE_STDLIB, < 310) \
|
||||
|| BOOST_WORKAROUND(_RWSTD_VER, BOOST_TESTED_AT(0x20101))
|
||||
|
||||
|
||||
typedef detail::iterator_archetype_base<
|
||||
Value,AccessCategory,TraversalCategory
|
||||
> base;
|
||||
|
||||
|
||||
typedef typename base::value_type value_type;
|
||||
typedef typename base::reference reference;
|
||||
typedef typename base::pointer pointer;
|
||||
@ -509,7 +493,17 @@ struct iterator_archetype
|
||||
# endif
|
||||
};
|
||||
|
||||
} // namespace iterators
|
||||
|
||||
// Backward compatibility names
|
||||
namespace iterator_archetypes = iterators::archetypes;
|
||||
using iterators::access_archetype;
|
||||
using iterators::traversal_archetype;
|
||||
using iterators::iterator_archetype;
|
||||
using iterators::undefined;
|
||||
using iterators::iterator_access_archetype_impl;
|
||||
using iterators::traversal_archetype_base;
|
||||
|
||||
} // namespace boost
|
||||
|
||||
|
||||
#endif // BOOST_ITERATOR_ARCHETYPES_HPP
|
||||
|
@ -22,6 +22,7 @@
|
||||
# include <boost/static_assert.hpp>
|
||||
|
||||
namespace boost {
|
||||
namespace iterators {
|
||||
|
||||
//
|
||||
// Traversal Categories
|
||||
@ -29,34 +30,34 @@ namespace boost {
|
||||
|
||||
struct no_traversal_tag {};
|
||||
|
||||
struct incrementable_traversal_tag
|
||||
struct incrementable_traversal_tag
|
||||
: no_traversal_tag
|
||||
{
|
||||
// incrementable_traversal_tag() {}
|
||||
// incrementable_traversal_tag(std::output_iterator_tag const&) {};
|
||||
};
|
||||
|
||||
|
||||
struct single_pass_traversal_tag
|
||||
: incrementable_traversal_tag
|
||||
{
|
||||
// single_pass_traversal_tag() {}
|
||||
// single_pass_traversal_tag(std::input_iterator_tag const&) {};
|
||||
};
|
||||
|
||||
|
||||
struct forward_traversal_tag
|
||||
: single_pass_traversal_tag
|
||||
{
|
||||
// forward_traversal_tag() {}
|
||||
// forward_traversal_tag(std::forward_iterator_tag const&) {};
|
||||
};
|
||||
|
||||
|
||||
struct bidirectional_traversal_tag
|
||||
: forward_traversal_tag
|
||||
{
|
||||
// bidirectional_traversal_tag() {};
|
||||
// bidirectional_traversal_tag(std::bidirectional_iterator_tag const&) {};
|
||||
};
|
||||
|
||||
|
||||
struct random_access_traversal_tag
|
||||
: bidirectional_traversal_tag
|
||||
{
|
||||
@ -65,7 +66,7 @@ struct random_access_traversal_tag
|
||||
};
|
||||
|
||||
namespace detail
|
||||
{
|
||||
{
|
||||
//
|
||||
// Convert a "strictly old-style" iterator category to a traversal
|
||||
// tag. This is broken out into a separate metafunction to reduce
|
||||
@ -97,51 +98,8 @@ namespace detail
|
||||
>
|
||||
{};
|
||||
|
||||
# if BOOST_WORKAROUND(BOOST_MSVC, < 1300)
|
||||
template <>
|
||||
struct old_category_to_traversal<int>
|
||||
{
|
||||
typedef int type;
|
||||
};
|
||||
# endif
|
||||
|
||||
template <class Traversal>
|
||||
struct pure_traversal_tag
|
||||
: mpl::eval_if<
|
||||
is_convertible<Traversal,random_access_traversal_tag>
|
||||
, mpl::identity<random_access_traversal_tag>
|
||||
, mpl::eval_if<
|
||||
is_convertible<Traversal,bidirectional_traversal_tag>
|
||||
, mpl::identity<bidirectional_traversal_tag>
|
||||
, mpl::eval_if<
|
||||
is_convertible<Traversal,forward_traversal_tag>
|
||||
, mpl::identity<forward_traversal_tag>
|
||||
, mpl::eval_if<
|
||||
is_convertible<Traversal,single_pass_traversal_tag>
|
||||
, mpl::identity<single_pass_traversal_tag>
|
||||
, mpl::eval_if<
|
||||
is_convertible<Traversal,incrementable_traversal_tag>
|
||||
, mpl::identity<incrementable_traversal_tag>
|
||||
, void
|
||||
>
|
||||
>
|
||||
>
|
||||
>
|
||||
>
|
||||
{
|
||||
};
|
||||
|
||||
# if BOOST_WORKAROUND(BOOST_MSVC, < 1300)
|
||||
template <>
|
||||
struct pure_traversal_tag<int>
|
||||
{
|
||||
typedef int type;
|
||||
};
|
||||
# endif
|
||||
|
||||
} // namespace detail
|
||||
|
||||
|
||||
//
|
||||
// Convert an iterator category into a traversal tag
|
||||
//
|
||||
@ -150,7 +108,7 @@ struct iterator_category_to_traversal
|
||||
: mpl::eval_if< // if already convertible to a traversal tag, we're done.
|
||||
is_convertible<Cat,incrementable_traversal_tag>
|
||||
, mpl::identity<Cat>
|
||||
, boost::detail::old_category_to_traversal<Cat>
|
||||
, boost::iterators::detail::old_category_to_traversal<Cat>
|
||||
>
|
||||
{};
|
||||
|
||||
@ -181,6 +139,75 @@ struct iterator_traversal<mpl::_>
|
||||
{};
|
||||
# endif
|
||||
|
||||
//
|
||||
// Convert an iterator traversal to one of the traversal tags.
|
||||
//
|
||||
template <class Traversal>
|
||||
struct pure_traversal_tag
|
||||
: mpl::eval_if<
|
||||
is_convertible<Traversal,random_access_traversal_tag>
|
||||
, mpl::identity<random_access_traversal_tag>
|
||||
, mpl::eval_if<
|
||||
is_convertible<Traversal,bidirectional_traversal_tag>
|
||||
, mpl::identity<bidirectional_traversal_tag>
|
||||
, mpl::eval_if<
|
||||
is_convertible<Traversal,forward_traversal_tag>
|
||||
, mpl::identity<forward_traversal_tag>
|
||||
, mpl::eval_if<
|
||||
is_convertible<Traversal,single_pass_traversal_tag>
|
||||
, mpl::identity<single_pass_traversal_tag>
|
||||
, mpl::eval_if<
|
||||
is_convertible<Traversal,incrementable_traversal_tag>
|
||||
, mpl::identity<incrementable_traversal_tag>
|
||||
, void
|
||||
>
|
||||
>
|
||||
>
|
||||
>
|
||||
>
|
||||
{
|
||||
};
|
||||
|
||||
//
|
||||
// Trait to retrieve one of the iterator traversal tags from the iterator category or traversal.
|
||||
//
|
||||
template <class Iterator = mpl::_1>
|
||||
struct pure_iterator_traversal
|
||||
: pure_traversal_tag<typename iterator_traversal<Iterator>::type>
|
||||
{};
|
||||
|
||||
# ifdef BOOST_MPL_CFG_NO_FULL_LAMBDA_SUPPORT
|
||||
template <>
|
||||
struct pure_iterator_traversal<mpl::_1>
|
||||
{
|
||||
template <class T>
|
||||
struct apply : pure_iterator_traversal<T>
|
||||
{};
|
||||
};
|
||||
template <>
|
||||
struct pure_iterator_traversal<mpl::_>
|
||||
: pure_iterator_traversal<mpl::_1>
|
||||
{};
|
||||
# endif
|
||||
|
||||
} // namespace iterators
|
||||
|
||||
using iterators::no_traversal_tag;
|
||||
using iterators::incrementable_traversal_tag;
|
||||
using iterators::single_pass_traversal_tag;
|
||||
using iterators::forward_traversal_tag;
|
||||
using iterators::bidirectional_traversal_tag;
|
||||
using iterators::random_access_traversal_tag;
|
||||
using iterators::iterator_category_to_traversal;
|
||||
using iterators::iterator_traversal;
|
||||
|
||||
// This import is needed for backward compatibility with Boost.Range:
|
||||
// boost/range/detail/demote_iterator_traversal_tag.hpp
|
||||
// It should be removed when that header is fixed.
|
||||
namespace detail {
|
||||
using iterators::pure_traversal_tag;
|
||||
} // namespace detail
|
||||
|
||||
} // namespace boost
|
||||
|
||||
#include <boost/iterator/detail/config_undef.hpp>
|
||||
|
@ -56,7 +56,7 @@ namespace boost_concepts
|
||||
private:
|
||||
Iterator i;
|
||||
};
|
||||
|
||||
|
||||
template <
|
||||
typename Iterator
|
||||
, typename ValueType = BOOST_DEDUCED_TYPENAME boost::detail::iterator_traits<Iterator>::value_type
|
||||
@ -78,7 +78,7 @@ namespace boost_concepts
|
||||
, typename ValueType = BOOST_DEDUCED_TYPENAME boost::detail::iterator_traits<Iterator>::value_type
|
||||
>
|
||||
struct WritableIteratorConcept : WritableIterator<Iterator,ValueType> {};
|
||||
|
||||
|
||||
BOOST_concept(SwappableIterator,(Iterator))
|
||||
{
|
||||
BOOST_CONCEPT_USAGE(SwappableIterator)
|
||||
@ -93,7 +93,7 @@ namespace boost_concepts
|
||||
BOOST_concept(LvalueIterator,(Iterator))
|
||||
{
|
||||
typedef typename boost::detail::iterator_traits<Iterator>::value_type value_type;
|
||||
|
||||
|
||||
BOOST_CONCEPT_USAGE(LvalueIterator)
|
||||
{
|
||||
value_type& r = const_cast<value_type&>(*i);
|
||||
@ -103,7 +103,7 @@ namespace boost_concepts
|
||||
Iterator i;
|
||||
};
|
||||
|
||||
|
||||
|
||||
//===========================================================================
|
||||
// Iterator Traversal Concepts
|
||||
|
||||
@ -145,7 +145,7 @@ namespace boost_concepts
|
||||
, boost::DefaultConstructible<Iterator>
|
||||
{
|
||||
typedef typename boost::detail::iterator_traits<Iterator>::difference_type difference_type;
|
||||
|
||||
|
||||
BOOST_MPL_ASSERT((boost::is_integral<difference_type>));
|
||||
BOOST_MPL_ASSERT_RELATION(std::numeric_limits<difference_type>::is_signed, ==, true);
|
||||
|
||||
@ -155,7 +155,7 @@ namespace boost_concepts
|
||||
, boost::forward_traversal_tag
|
||||
> ));
|
||||
};
|
||||
|
||||
|
||||
BOOST_concept(BidirectionalTraversal,(Iterator))
|
||||
: ForwardTraversal<Iterator>
|
||||
{
|
||||
@ -192,14 +192,14 @@ namespace boost_concepts
|
||||
i = i - n;
|
||||
n = i - j;
|
||||
}
|
||||
|
||||
|
||||
private:
|
||||
typename BidirectionalTraversal<Iterator>::difference_type n;
|
||||
Iterator i, j;
|
||||
};
|
||||
|
||||
//===========================================================================
|
||||
// Iterator Interoperability
|
||||
// Iterator Interoperability
|
||||
|
||||
namespace detail
|
||||
{
|
||||
@ -248,19 +248,10 @@ namespace boost_concepts
|
||||
BOOST_concept(InteroperableIterator,(Iterator)(ConstIterator))
|
||||
{
|
||||
private:
|
||||
typedef typename boost::detail::pure_traversal_tag<
|
||||
typename boost::iterator_traversal<
|
||||
Iterator
|
||||
>::type
|
||||
>::type traversal_category;
|
||||
typedef typename boost::iterators::pure_iterator_traversal<Iterator>::type traversal_category;
|
||||
typedef typename boost::iterators::pure_iterator_traversal<ConstIterator>::type const_traversal_category;
|
||||
|
||||
typedef typename boost::detail::pure_traversal_tag<
|
||||
typename boost::iterator_traversal<
|
||||
ConstIterator
|
||||
>::type
|
||||
>::type const_traversal_category;
|
||||
|
||||
public:
|
||||
public:
|
||||
BOOST_CONCEPT_ASSERT((SinglePassIterator<Iterator>));
|
||||
BOOST_CONCEPT_ASSERT((SinglePassIterator<ConstIterator>));
|
||||
|
||||
@ -271,7 +262,7 @@ namespace boost_concepts
|
||||
|
||||
ci = i;
|
||||
}
|
||||
|
||||
|
||||
private:
|
||||
Iterator i;
|
||||
ConstIterator ci;
|
||||
|
@ -7,9 +7,11 @@
|
||||
#ifndef BOOST_ITERATOR_FACADE_23022003THW_HPP
|
||||
#define BOOST_ITERATOR_FACADE_23022003THW_HPP
|
||||
|
||||
#include <boost/config.hpp>
|
||||
#include <boost/iterator.hpp>
|
||||
#include <boost/iterator/interoperable.hpp>
|
||||
#include <boost/iterator/iterator_traits.hpp>
|
||||
#include <boost/iterator/iterator_categories.hpp>
|
||||
|
||||
#include <boost/iterator/detail/facade_iterator_category.hpp>
|
||||
#include <boost/iterator/detail/enable_if.hpp>
|
||||
@ -20,6 +22,7 @@
|
||||
#include <boost/type_traits/is_same.hpp>
|
||||
#include <boost/type_traits/add_const.hpp>
|
||||
#include <boost/type_traits/add_pointer.hpp>
|
||||
#include <boost/type_traits/add_lvalue_reference.hpp>
|
||||
#include <boost/type_traits/remove_const.hpp>
|
||||
#include <boost/type_traits/remove_reference.hpp>
|
||||
#include <boost/type_traits/is_convertible.hpp>
|
||||
@ -36,8 +39,9 @@
|
||||
|
||||
#include <boost/iterator/detail/config_def.hpp> // this goes last
|
||||
|
||||
namespace boost
|
||||
{
|
||||
namespace boost {
|
||||
namespace iterators {
|
||||
|
||||
// This forward declaration is required for the friend declaration
|
||||
// in iterator_core_access
|
||||
template <class I, class V, class TC, class R, class D> class iterator_facade;
|
||||
@ -56,6 +60,12 @@ namespace boost
|
||||
};
|
||||
};
|
||||
|
||||
// The type trait checks if the category or traversal is at least as advanced as the specified required traversal
|
||||
template< typename CategoryOrTraversal, typename Required >
|
||||
struct is_traversal_at_least :
|
||||
public boost::is_convertible< typename iterator_category_to_traversal< CategoryOrTraversal >::type, Required >
|
||||
{};
|
||||
|
||||
//
|
||||
// enable if for use in operator implementation.
|
||||
//
|
||||
@ -64,28 +74,31 @@ namespace boost
|
||||
, class Facade2
|
||||
, class Return
|
||||
>
|
||||
struct enable_if_interoperable
|
||||
#if BOOST_WORKAROUND(BOOST_MSVC, <= 1300)
|
||||
{
|
||||
typedef typename mpl::if_<
|
||||
mpl::or_<
|
||||
is_convertible<Facade1, Facade2>
|
||||
, is_convertible<Facade2, Facade1>
|
||||
>
|
||||
struct enable_if_interoperable :
|
||||
public boost::iterators::enable_if<
|
||||
is_interoperable< Facade1, Facade2 >
|
||||
, Return
|
||||
>
|
||||
{};
|
||||
|
||||
//
|
||||
// enable if for use in implementation of operators specific for random access traversal.
|
||||
//
|
||||
template <
|
||||
class Facade1
|
||||
, class Facade2
|
||||
, class Return
|
||||
>
|
||||
struct enable_if_interoperable_and_random_access_traversal :
|
||||
public boost::iterators::enable_if<
|
||||
mpl::and_<
|
||||
is_interoperable< Facade1, Facade2 >
|
||||
, is_traversal_at_least< typename iterator_category< Facade1 >::type, random_access_traversal_tag >
|
||||
, is_traversal_at_least< typename iterator_category< Facade2 >::type, random_access_traversal_tag >
|
||||
>
|
||||
, Return
|
||||
, int[3]
|
||||
>::type type;
|
||||
};
|
||||
#else
|
||||
: ::boost::iterators::enable_if<
|
||||
mpl::or_<
|
||||
is_convertible<Facade1, Facade2>
|
||||
, is_convertible<Facade2, Facade1>
|
||||
>
|
||||
, Return
|
||||
>
|
||||
{};
|
||||
#endif
|
||||
|
||||
//
|
||||
// Generates associated types for an iterator_facade with the
|
||||
@ -94,7 +107,7 @@ namespace boost
|
||||
template <
|
||||
class ValueParam
|
||||
, class CategoryOrTraversal
|
||||
, class Reference
|
||||
, class Reference
|
||||
, class Difference
|
||||
>
|
||||
struct iterator_facade_types
|
||||
@ -102,16 +115,16 @@ namespace boost
|
||||
typedef typename facade_iterator_category<
|
||||
CategoryOrTraversal, ValueParam, Reference
|
||||
>::type iterator_category;
|
||||
|
||||
|
||||
typedef typename remove_const<ValueParam>::type value_type;
|
||||
|
||||
|
||||
// Not the real associated pointer type
|
||||
typedef typename mpl::eval_if<
|
||||
boost::detail::iterator_writability_disabled<ValueParam,Reference>
|
||||
boost::iterators::detail::iterator_writability_disabled<ValueParam,Reference>
|
||||
, add_pointer<const value_type>
|
||||
, add_pointer<value_type>
|
||||
>::type pointer;
|
||||
|
||||
|
||||
# if defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION) \
|
||||
&& (BOOST_WORKAROUND(_STLPORT_VERSION, BOOST_TESTED_AT(0x452)) \
|
||||
|| BOOST_WORKAROUND(BOOST_DINKUMWARE_STDLIB, BOOST_TESTED_AT(310))) \
|
||||
@ -157,7 +170,7 @@ namespace boost
|
||||
private:
|
||||
mutable value_type stored_value;
|
||||
};
|
||||
|
||||
|
||||
//
|
||||
// In general, we can't determine that such an iterator isn't
|
||||
// writable -- we also need to store a copy of the old iterator so
|
||||
@ -209,7 +222,7 @@ namespace boost
|
||||
{
|
||||
return stored_iterator;
|
||||
}
|
||||
|
||||
|
||||
private:
|
||||
mutable value_type stored_value;
|
||||
Iterator stored_iterator;
|
||||
@ -221,7 +234,7 @@ namespace boost
|
||||
struct is_non_proxy_reference_impl
|
||||
{
|
||||
static Reference r;
|
||||
|
||||
|
||||
template <class R>
|
||||
static typename mpl::if_<
|
||||
is_convertible<
|
||||
@ -231,17 +244,17 @@ namespace boost
|
||||
, char[1]
|
||||
, char[2]
|
||||
>::type& helper(R const&);
|
||||
|
||||
|
||||
BOOST_STATIC_CONSTANT(bool, value = sizeof(helper(r)) == 1);
|
||||
};
|
||||
|
||||
|
||||
template <class Reference, class Value>
|
||||
struct is_non_proxy_reference
|
||||
: mpl::bool_<
|
||||
is_non_proxy_reference_impl<Reference, Value>::value
|
||||
>
|
||||
{};
|
||||
# else
|
||||
# else
|
||||
template <class Reference, class Value>
|
||||
struct is_non_proxy_reference
|
||||
: is_convertible<
|
||||
@ -250,8 +263,8 @@ namespace boost
|
||||
, Value const volatile*
|
||||
>
|
||||
{};
|
||||
# endif
|
||||
|
||||
# endif
|
||||
|
||||
// A metafunction to choose the result type of postfix ++
|
||||
//
|
||||
// Because the C++98 input iterator requirements say that *r++ has
|
||||
@ -272,8 +285,16 @@ namespace boost
|
||||
: mpl::eval_if<
|
||||
mpl::and_<
|
||||
// A proxy is only needed for readable iterators
|
||||
is_convertible<Reference,Value const&>
|
||||
|
||||
is_convertible<
|
||||
Reference
|
||||
// Use add_lvalue_reference to form `reference to Value` due to
|
||||
// some (strict) C++03 compilers (e.g. `gcc -std=c++03`) reject
|
||||
// 'reference-to-reference' in the template which described in CWG
|
||||
// DR106.
|
||||
// http://www.open-std.org/Jtc1/sc22/wg21/docs/cwg_defects.html#106
|
||||
, typename add_lvalue_reference<Value const>::type
|
||||
>
|
||||
|
||||
// No multipass iterator can have values that disappear
|
||||
// before positions can be re-visited
|
||||
, mpl::not_<
|
||||
@ -325,15 +346,6 @@ namespace boost
|
||||
}
|
||||
};
|
||||
|
||||
# if BOOST_WORKAROUND(BOOST_MSVC, < 1300)
|
||||
// Deal with ETI
|
||||
template<>
|
||||
struct operator_arrow_dispatch<int, int>
|
||||
{
|
||||
typedef int result_type;
|
||||
};
|
||||
# endif
|
||||
|
||||
// A proxy return type for operator[], needed to deal with
|
||||
// iterators that may invalidate referents upon destruction.
|
||||
// Consider the temporary iterator in *(a + n)
|
||||
@ -378,7 +390,7 @@ namespace boost
|
||||
>
|
||||
>
|
||||
{};
|
||||
|
||||
|
||||
template <class Iterator, class Value, class Reference>
|
||||
struct operator_brackets_result
|
||||
{
|
||||
@ -408,28 +420,34 @@ namespace boost
|
||||
:
|
||||
# ifdef BOOST_NO_ONE_WAY_ITERATOR_INTEROP
|
||||
iterator_difference<I1>
|
||||
# elif BOOST_WORKAROUND(BOOST_MSVC, < 1300)
|
||||
mpl::if_<
|
||||
is_convertible<I2,I1>
|
||||
, typename I1::difference_type
|
||||
, typename I2::difference_type
|
||||
>
|
||||
# else
|
||||
# else
|
||||
mpl::eval_if<
|
||||
is_convertible<I2,I1>
|
||||
, iterator_difference<I1>
|
||||
, iterator_difference<I2>
|
||||
>
|
||||
# endif
|
||||
# endif
|
||||
{};
|
||||
|
||||
};
|
||||
|
||||
template <
|
||||
class Derived
|
||||
, class Value
|
||||
, class CategoryOrTraversal
|
||||
, class Reference
|
||||
, class Difference
|
||||
, bool IsBidirectionalTraversal
|
||||
, bool IsRandomAccessTraversal
|
||||
>
|
||||
class iterator_facade_base;
|
||||
|
||||
} // namespace detail
|
||||
|
||||
|
||||
// Macros which describe the declarations of binary operators
|
||||
# ifdef BOOST_NO_STRICT_ITERATOR_INTEROPERABILITY
|
||||
# define BOOST_ITERATOR_FACADE_INTEROP_HEAD(prefix, op, result_type) \
|
||||
# define BOOST_ITERATOR_FACADE_INTEROP_HEAD_IMPL(prefix, op, result_type, enabler) \
|
||||
template < \
|
||||
class Derived1, class V1, class TC1, class Reference1, class Difference1 \
|
||||
, class Derived2, class V2, class TC2, class Reference2, class Difference2 \
|
||||
@ -438,24 +456,33 @@ namespace boost
|
||||
operator op( \
|
||||
iterator_facade<Derived1, V1, TC1, Reference1, Difference1> const& lhs \
|
||||
, iterator_facade<Derived2, V2, TC2, Reference2, Difference2> const& rhs)
|
||||
# else
|
||||
# define BOOST_ITERATOR_FACADE_INTEROP_HEAD(prefix, op, result_type) \
|
||||
# else
|
||||
# define BOOST_ITERATOR_FACADE_INTEROP_HEAD_IMPL(prefix, op, result_type, enabler) \
|
||||
template < \
|
||||
class Derived1, class V1, class TC1, class Reference1, class Difference1 \
|
||||
, class Derived2, class V2, class TC2, class Reference2, class Difference2 \
|
||||
> \
|
||||
prefix typename boost::detail::enable_if_interoperable< \
|
||||
prefix typename enabler< \
|
||||
Derived1, Derived2 \
|
||||
, typename mpl::apply2<result_type,Derived1,Derived2>::type \
|
||||
>::type \
|
||||
operator op( \
|
||||
iterator_facade<Derived1, V1, TC1, Reference1, Difference1> const& lhs \
|
||||
, iterator_facade<Derived2, V2, TC2, Reference2, Difference2> const& rhs)
|
||||
# endif
|
||||
# endif
|
||||
|
||||
# define BOOST_ITERATOR_FACADE_INTEROP_HEAD(prefix, op, result_type) \
|
||||
BOOST_ITERATOR_FACADE_INTEROP_HEAD_IMPL(prefix, op, result_type, boost::iterators::detail::enable_if_interoperable)
|
||||
|
||||
# define BOOST_ITERATOR_FACADE_INTEROP_RANDOM_ACCESS_HEAD(prefix, op, result_type) \
|
||||
BOOST_ITERATOR_FACADE_INTEROP_HEAD_IMPL(prefix, op, result_type, boost::iterators::detail::enable_if_interoperable_and_random_access_traversal)
|
||||
|
||||
# define BOOST_ITERATOR_FACADE_PLUS_HEAD(prefix,args) \
|
||||
template <class Derived, class V, class TC, class R, class D> \
|
||||
prefix Derived operator+ args
|
||||
prefix typename boost::iterators::enable_if< \
|
||||
boost::iterators::detail::is_traversal_at_least< TC, boost::iterators::random_access_traversal_tag >, \
|
||||
Derived \
|
||||
>::type operator+ args
|
||||
|
||||
//
|
||||
// Helper class for granting access to the iterator core interface.
|
||||
@ -468,41 +495,49 @@ namespace boost
|
||||
//
|
||||
class iterator_core_access
|
||||
{
|
||||
# if defined(BOOST_NO_MEMBER_TEMPLATE_FRIENDS)
|
||||
# if defined(BOOST_NO_MEMBER_TEMPLATE_FRIENDS)
|
||||
// Tasteless as this may seem, making all members public allows member templates
|
||||
// to work in the absence of member template friends.
|
||||
public:
|
||||
# else
|
||||
|
||||
|
||||
template <class I, class V, class TC, class R, class D> friend class iterator_facade;
|
||||
template <class I, class V, class TC, class R, class D, bool IsBidirectionalTraversal, bool IsRandomAccessTraversal>
|
||||
friend class detail::iterator_facade_base;
|
||||
|
||||
# define BOOST_ITERATOR_FACADE_RELATION(op) \
|
||||
BOOST_ITERATOR_FACADE_INTEROP_HEAD(friend,op, boost::detail::always_bool2);
|
||||
BOOST_ITERATOR_FACADE_INTEROP_HEAD(friend,op, boost::iterators::detail::always_bool2);
|
||||
|
||||
BOOST_ITERATOR_FACADE_RELATION(==)
|
||||
BOOST_ITERATOR_FACADE_RELATION(!=)
|
||||
|
||||
BOOST_ITERATOR_FACADE_RELATION(<)
|
||||
BOOST_ITERATOR_FACADE_RELATION(>)
|
||||
BOOST_ITERATOR_FACADE_RELATION(<=)
|
||||
BOOST_ITERATOR_FACADE_RELATION(>=)
|
||||
# undef BOOST_ITERATOR_FACADE_RELATION
|
||||
|
||||
BOOST_ITERATOR_FACADE_INTEROP_HEAD(
|
||||
friend, -, boost::detail::choose_difference_type)
|
||||
# define BOOST_ITERATOR_FACADE_RANDOM_ACCESS_RELATION(op) \
|
||||
BOOST_ITERATOR_FACADE_INTEROP_RANDOM_ACCESS_HEAD(friend,op, boost::iterators::detail::always_bool2);
|
||||
|
||||
BOOST_ITERATOR_FACADE_RANDOM_ACCESS_RELATION(<)
|
||||
BOOST_ITERATOR_FACADE_RANDOM_ACCESS_RELATION(>)
|
||||
BOOST_ITERATOR_FACADE_RANDOM_ACCESS_RELATION(<=)
|
||||
BOOST_ITERATOR_FACADE_RANDOM_ACCESS_RELATION(>=)
|
||||
|
||||
# undef BOOST_ITERATOR_FACADE_RANDOM_ACCESS_RELATION
|
||||
|
||||
BOOST_ITERATOR_FACADE_INTEROP_RANDOM_ACCESS_HEAD(
|
||||
friend, -, boost::iterators::detail::choose_difference_type)
|
||||
;
|
||||
|
||||
BOOST_ITERATOR_FACADE_PLUS_HEAD(
|
||||
friend inline
|
||||
, (iterator_facade<Derived, V, TC, R, D> const&
|
||||
, typename Derived::difference_type)
|
||||
, (iterator_facade<Derived, V, TC, R, D> const&
|
||||
, typename Derived::difference_type)
|
||||
)
|
||||
;
|
||||
|
||||
BOOST_ITERATOR_FACADE_PLUS_HEAD(
|
||||
friend inline
|
||||
, (typename Derived::difference_type
|
||||
, iterator_facade<Derived, V, TC, R, D> const&)
|
||||
, iterator_facade<Derived, V, TC, R, D> const&)
|
||||
)
|
||||
;
|
||||
|
||||
@ -573,11 +608,156 @@ namespace boost
|
||||
return *static_cast<I const*>(&facade);
|
||||
}
|
||||
|
||||
private:
|
||||
// objects of this class are useless
|
||||
iterator_core_access(); //undefined
|
||||
BOOST_DELETED_FUNCTION(iterator_core_access())
|
||||
};
|
||||
|
||||
namespace detail {
|
||||
|
||||
// Implementation for forward traversal iterators
|
||||
template <
|
||||
class Derived
|
||||
, class Value
|
||||
, class CategoryOrTraversal
|
||||
, class Reference
|
||||
, class Difference
|
||||
>
|
||||
class iterator_facade_base< Derived, Value, CategoryOrTraversal, Reference, Difference, false, false >
|
||||
# ifdef BOOST_ITERATOR_FACADE_NEEDS_ITERATOR_BASE
|
||||
: public boost::iterators::detail::iterator_facade_types<
|
||||
Value, CategoryOrTraversal, Reference, Difference
|
||||
>::base
|
||||
# undef BOOST_ITERATOR_FACADE_NEEDS_ITERATOR_BASE
|
||||
# endif
|
||||
{
|
||||
private:
|
||||
typedef boost::iterators::detail::iterator_facade_types<
|
||||
Value, CategoryOrTraversal, Reference, Difference
|
||||
> associated_types;
|
||||
|
||||
typedef boost::iterators::detail::operator_arrow_dispatch<
|
||||
Reference
|
||||
, typename associated_types::pointer
|
||||
> operator_arrow_dispatch_;
|
||||
|
||||
public:
|
||||
typedef typename associated_types::value_type value_type;
|
||||
typedef Reference reference;
|
||||
typedef Difference difference_type;
|
||||
|
||||
typedef typename operator_arrow_dispatch_::result_type pointer;
|
||||
|
||||
typedef typename associated_types::iterator_category iterator_category;
|
||||
|
||||
public:
|
||||
reference operator*() const
|
||||
{
|
||||
return iterator_core_access::dereference(this->derived());
|
||||
}
|
||||
|
||||
pointer operator->() const
|
||||
{
|
||||
return operator_arrow_dispatch_::apply(*this->derived());
|
||||
}
|
||||
|
||||
Derived& operator++()
|
||||
{
|
||||
iterator_core_access::increment(this->derived());
|
||||
return this->derived();
|
||||
}
|
||||
|
||||
protected:
|
||||
//
|
||||
// Curiously Recurring Template interface.
|
||||
//
|
||||
Derived& derived()
|
||||
{
|
||||
return *static_cast<Derived*>(this);
|
||||
}
|
||||
|
||||
Derived const& derived() const
|
||||
{
|
||||
return *static_cast<Derived const*>(this);
|
||||
}
|
||||
};
|
||||
|
||||
// Implementation for bidirectional traversal iterators
|
||||
template <
|
||||
class Derived
|
||||
, class Value
|
||||
, class CategoryOrTraversal
|
||||
, class Reference
|
||||
, class Difference
|
||||
>
|
||||
class iterator_facade_base< Derived, Value, CategoryOrTraversal, Reference, Difference, true, false > :
|
||||
public iterator_facade_base< Derived, Value, CategoryOrTraversal, Reference, Difference, false, false >
|
||||
{
|
||||
public:
|
||||
Derived& operator--()
|
||||
{
|
||||
iterator_core_access::decrement(this->derived());
|
||||
return this->derived();
|
||||
}
|
||||
|
||||
Derived operator--(int)
|
||||
{
|
||||
Derived tmp(this->derived());
|
||||
--*this;
|
||||
return tmp;
|
||||
}
|
||||
};
|
||||
|
||||
// Implementation for random access traversal iterators
|
||||
template <
|
||||
class Derived
|
||||
, class Value
|
||||
, class CategoryOrTraversal
|
||||
, class Reference
|
||||
, class Difference
|
||||
>
|
||||
class iterator_facade_base< Derived, Value, CategoryOrTraversal, Reference, Difference, true, true > :
|
||||
public iterator_facade_base< Derived, Value, CategoryOrTraversal, Reference, Difference, true, false >
|
||||
{
|
||||
private:
|
||||
typedef iterator_facade_base< Derived, Value, CategoryOrTraversal, Reference, Difference, true, false > base_type;
|
||||
|
||||
public:
|
||||
typedef typename base_type::reference reference;
|
||||
typedef typename base_type::difference_type difference_type;
|
||||
|
||||
public:
|
||||
typename boost::iterators::detail::operator_brackets_result<Derived, Value, reference>::type
|
||||
operator[](difference_type n) const
|
||||
{
|
||||
typedef boost::iterators::detail::use_operator_brackets_proxy<Value, Reference> use_proxy;
|
||||
|
||||
return boost::iterators::detail::make_operator_brackets_result<Derived>(
|
||||
this->derived() + n
|
||||
, use_proxy()
|
||||
);
|
||||
}
|
||||
|
||||
Derived& operator+=(difference_type n)
|
||||
{
|
||||
iterator_core_access::advance(this->derived(), n);
|
||||
return this->derived();
|
||||
}
|
||||
|
||||
Derived& operator-=(difference_type n)
|
||||
{
|
||||
iterator_core_access::advance(this->derived(), -n);
|
||||
return this->derived();
|
||||
}
|
||||
|
||||
Derived operator-(difference_type x) const
|
||||
{
|
||||
Derived result(this->derived());
|
||||
return result -= x;
|
||||
}
|
||||
};
|
||||
|
||||
} // namespace detail
|
||||
|
||||
//
|
||||
// iterator_facade - use as a public base class for defining new
|
||||
// standard-conforming iterators.
|
||||
@ -589,151 +769,38 @@ namespace boost
|
||||
, class Reference = Value&
|
||||
, class Difference = std::ptrdiff_t
|
||||
>
|
||||
class iterator_facade
|
||||
# ifdef BOOST_ITERATOR_FACADE_NEEDS_ITERATOR_BASE
|
||||
: public boost::detail::iterator_facade_types<
|
||||
Value, CategoryOrTraversal, Reference, Difference
|
||||
>::base
|
||||
# undef BOOST_ITERATOR_FACADE_NEEDS_ITERATOR_BASE
|
||||
# endif
|
||||
class iterator_facade :
|
||||
public detail::iterator_facade_base<
|
||||
Derived,
|
||||
Value,
|
||||
CategoryOrTraversal,
|
||||
Reference,
|
||||
Difference,
|
||||
detail::is_traversal_at_least< CategoryOrTraversal, bidirectional_traversal_tag >::value,
|
||||
detail::is_traversal_at_least< CategoryOrTraversal, random_access_traversal_tag >::value
|
||||
>
|
||||
{
|
||||
private:
|
||||
//
|
||||
// Curiously Recurring Template interface.
|
||||
//
|
||||
Derived& derived()
|
||||
{
|
||||
return *static_cast<Derived*>(this);
|
||||
}
|
||||
|
||||
Derived const& derived() const
|
||||
{
|
||||
return *static_cast<Derived const*>(this);
|
||||
}
|
||||
|
||||
typedef boost::detail::iterator_facade_types<
|
||||
Value, CategoryOrTraversal, Reference, Difference
|
||||
> associated_types;
|
||||
|
||||
typedef boost::detail::operator_arrow_dispatch<
|
||||
Reference
|
||||
, typename associated_types::pointer
|
||||
> operator_arrow_dispatch_;
|
||||
|
||||
protected:
|
||||
protected:
|
||||
// For use by derived classes
|
||||
typedef iterator_facade<Derived,Value,CategoryOrTraversal,Reference,Difference> iterator_facade_;
|
||||
|
||||
public:
|
||||
|
||||
typedef typename associated_types::value_type value_type;
|
||||
typedef Reference reference;
|
||||
typedef Difference difference_type;
|
||||
|
||||
typedef typename operator_arrow_dispatch_::result_type pointer;
|
||||
|
||||
typedef typename associated_types::iterator_category iterator_category;
|
||||
|
||||
reference operator*() const
|
||||
{
|
||||
return iterator_core_access::dereference(this->derived());
|
||||
}
|
||||
|
||||
pointer operator->() const
|
||||
{
|
||||
return operator_arrow_dispatch_::apply(*this->derived());
|
||||
}
|
||||
|
||||
typename boost::detail::operator_brackets_result<Derived,Value,reference>::type
|
||||
operator[](difference_type n) const
|
||||
{
|
||||
typedef boost::detail::use_operator_brackets_proxy<Value,Reference> use_proxy;
|
||||
|
||||
return boost::detail::make_operator_brackets_result<Derived>(
|
||||
this->derived() + n
|
||||
, use_proxy()
|
||||
);
|
||||
}
|
||||
|
||||
Derived& operator++()
|
||||
{
|
||||
iterator_core_access::increment(this->derived());
|
||||
return this->derived();
|
||||
}
|
||||
|
||||
# if BOOST_WORKAROUND(BOOST_MSVC, < 1300)
|
||||
typename boost::detail::postfix_increment_result<Derived,Value,Reference,CategoryOrTraversal>::type
|
||||
operator++(int)
|
||||
{
|
||||
typename boost::detail::postfix_increment_result<Derived,Value,Reference,CategoryOrTraversal>::type
|
||||
tmp(this->derived());
|
||||
++*this;
|
||||
return tmp;
|
||||
}
|
||||
# endif
|
||||
|
||||
Derived& operator--()
|
||||
{
|
||||
iterator_core_access::decrement(this->derived());
|
||||
return this->derived();
|
||||
}
|
||||
|
||||
Derived operator--(int)
|
||||
{
|
||||
Derived tmp(this->derived());
|
||||
--*this;
|
||||
return tmp;
|
||||
}
|
||||
|
||||
Derived& operator+=(difference_type n)
|
||||
{
|
||||
iterator_core_access::advance(this->derived(), n);
|
||||
return this->derived();
|
||||
}
|
||||
|
||||
Derived& operator-=(difference_type n)
|
||||
{
|
||||
iterator_core_access::advance(this->derived(), -n);
|
||||
return this->derived();
|
||||
}
|
||||
|
||||
Derived operator-(difference_type x) const
|
||||
{
|
||||
Derived result(this->derived());
|
||||
return result -= x;
|
||||
}
|
||||
|
||||
# if BOOST_WORKAROUND(BOOST_MSVC, < 1300)
|
||||
// There appears to be a bug which trashes the data of classes
|
||||
// derived from iterator_facade when they are assigned unless we
|
||||
// define this assignment operator. This bug is only revealed
|
||||
// (so far) in STLPort debug mode, but it's clearly a codegen
|
||||
// problem so we apply the workaround for all MSVC6.
|
||||
iterator_facade& operator=(iterator_facade const&)
|
||||
{
|
||||
return *this;
|
||||
}
|
||||
# endif
|
||||
};
|
||||
|
||||
# if !BOOST_WORKAROUND(BOOST_MSVC, < 1300)
|
||||
template <class I, class V, class TC, class R, class D>
|
||||
inline typename boost::detail::postfix_increment_result<I,V,R,TC>::type
|
||||
inline typename boost::iterators::detail::postfix_increment_result<I,V,R,TC>::type
|
||||
operator++(
|
||||
iterator_facade<I,V,TC,R,D>& i
|
||||
, int
|
||||
)
|
||||
{
|
||||
typename boost::detail::postfix_increment_result<I,V,R,TC>::type
|
||||
typename boost::iterators::detail::postfix_increment_result<I,V,R,TC>::type
|
||||
tmp(*static_cast<I*>(&i));
|
||||
|
||||
|
||||
++i;
|
||||
|
||||
|
||||
return tmp;
|
||||
}
|
||||
# endif
|
||||
|
||||
|
||||
|
||||
//
|
||||
// Comparison operator implementation. The library supplied operators
|
||||
// enables the user to provide fully interoperable constant/mutable
|
||||
@ -824,7 +891,7 @@ namespace boost
|
||||
# define BOOST_ITERATOR_FACADE_RELATION(op, return_prefix, base_op) \
|
||||
BOOST_ITERATOR_FACADE_INTEROP( \
|
||||
op \
|
||||
, boost::detail::always_bool2 \
|
||||
, boost::iterators::detail::always_bool2 \
|
||||
, return_prefix \
|
||||
, base_op \
|
||||
)
|
||||
@ -832,21 +899,50 @@ namespace boost
|
||||
BOOST_ITERATOR_FACADE_RELATION(==, return, equal)
|
||||
BOOST_ITERATOR_FACADE_RELATION(!=, return !, equal)
|
||||
|
||||
BOOST_ITERATOR_FACADE_RELATION(<, return 0 >, distance_from)
|
||||
BOOST_ITERATOR_FACADE_RELATION(>, return 0 <, distance_from)
|
||||
BOOST_ITERATOR_FACADE_RELATION(<=, return 0 >=, distance_from)
|
||||
BOOST_ITERATOR_FACADE_RELATION(>=, return 0 <=, distance_from)
|
||||
# undef BOOST_ITERATOR_FACADE_RELATION
|
||||
|
||||
|
||||
# define BOOST_ITERATOR_FACADE_INTEROP_RANDOM_ACCESS(op, result_type, return_prefix, base_op) \
|
||||
BOOST_ITERATOR_FACADE_INTEROP_RANDOM_ACCESS_HEAD(inline, op, result_type) \
|
||||
{ \
|
||||
/* For those compilers that do not support enable_if */ \
|
||||
BOOST_STATIC_ASSERT(( \
|
||||
is_interoperable< Derived1, Derived2 >::value && \
|
||||
boost::iterators::detail::is_traversal_at_least< typename iterator_category< Derived1 >::type, random_access_traversal_tag >::value && \
|
||||
boost::iterators::detail::is_traversal_at_least< typename iterator_category< Derived2 >::type, random_access_traversal_tag >::value \
|
||||
)); \
|
||||
return_prefix iterator_core_access::base_op( \
|
||||
*static_cast<Derived1 const*>(&lhs) \
|
||||
, *static_cast<Derived2 const*>(&rhs) \
|
||||
, BOOST_ITERATOR_CONVERTIBLE(Derived2,Derived1) \
|
||||
); \
|
||||
}
|
||||
|
||||
# define BOOST_ITERATOR_FACADE_RANDOM_ACCESS_RELATION(op, return_prefix, base_op) \
|
||||
BOOST_ITERATOR_FACADE_INTEROP_RANDOM_ACCESS( \
|
||||
op \
|
||||
, boost::iterators::detail::always_bool2 \
|
||||
, return_prefix \
|
||||
, base_op \
|
||||
)
|
||||
|
||||
BOOST_ITERATOR_FACADE_RANDOM_ACCESS_RELATION(<, return 0 >, distance_from)
|
||||
BOOST_ITERATOR_FACADE_RANDOM_ACCESS_RELATION(>, return 0 <, distance_from)
|
||||
BOOST_ITERATOR_FACADE_RANDOM_ACCESS_RELATION(<=, return 0 >=, distance_from)
|
||||
BOOST_ITERATOR_FACADE_RANDOM_ACCESS_RELATION(>=, return 0 <=, distance_from)
|
||||
|
||||
# undef BOOST_ITERATOR_FACADE_RANDOM_ACCESS_RELATION
|
||||
|
||||
// operator- requires an additional part in the static assertion
|
||||
BOOST_ITERATOR_FACADE_INTEROP(
|
||||
BOOST_ITERATOR_FACADE_INTEROP_RANDOM_ACCESS(
|
||||
-
|
||||
, boost::detail::choose_difference_type
|
||||
, boost::iterators::detail::choose_difference_type
|
||||
, return
|
||||
, distance_from
|
||||
)
|
||||
|
||||
# undef BOOST_ITERATOR_FACADE_INTEROP
|
||||
# undef BOOST_ITERATOR_FACADE_INTEROP_HEAD
|
||||
# undef BOOST_ITERATOR_FACADE_INTEROP_RANDOM_ACCESS
|
||||
|
||||
# define BOOST_ITERATOR_FACADE_PLUS(args) \
|
||||
BOOST_ITERATOR_FACADE_PLUS_HEAD(inline, args) \
|
||||
@ -855,18 +951,28 @@ namespace boost
|
||||
return tmp += n; \
|
||||
}
|
||||
|
||||
BOOST_ITERATOR_FACADE_PLUS((
|
||||
iterator_facade<Derived, V, TC, R, D> const& i
|
||||
, typename Derived::difference_type n
|
||||
))
|
||||
BOOST_ITERATOR_FACADE_PLUS((
|
||||
iterator_facade<Derived, V, TC, R, D> const& i
|
||||
, typename Derived::difference_type n
|
||||
))
|
||||
|
||||
BOOST_ITERATOR_FACADE_PLUS((
|
||||
typename Derived::difference_type n
|
||||
BOOST_ITERATOR_FACADE_PLUS((
|
||||
typename Derived::difference_type n
|
||||
, iterator_facade<Derived, V, TC, R, D> const& i
|
||||
))
|
||||
))
|
||||
|
||||
# undef BOOST_ITERATOR_FACADE_PLUS
|
||||
# undef BOOST_ITERATOR_FACADE_PLUS_HEAD
|
||||
|
||||
# undef BOOST_ITERATOR_FACADE_INTEROP_HEAD
|
||||
# undef BOOST_ITERATOR_FACADE_INTEROP_RANDOM_ACCESS_HEAD
|
||||
# undef BOOST_ITERATOR_FACADE_INTEROP_HEAD_IMPL
|
||||
|
||||
} // namespace iterators
|
||||
|
||||
using iterators::iterator_core_access;
|
||||
using iterators::iterator_facade;
|
||||
|
||||
} // namespace boost
|
||||
|
||||
#include <boost/iterator/detail/config_undef.hpp>
|
||||
|
@ -8,20 +8,12 @@
|
||||
# include <boost/detail/iterator.hpp>
|
||||
# include <boost/detail/workaround.hpp>
|
||||
|
||||
namespace boost {
|
||||
namespace boost {
|
||||
namespace iterators {
|
||||
|
||||
// Unfortunately, g++ 2.95.x chokes when we define a class template
|
||||
// iterator_category which has the same name as its
|
||||
// std::iterator_category() function, probably due in part to the
|
||||
// "std:: is visible globally" hack it uses. Use
|
||||
// BOOST_ITERATOR_CATEGORY to write code that's portable to older
|
||||
// GCCs.
|
||||
|
||||
# if BOOST_WORKAROUND(__GNUC__, <= 2)
|
||||
# define BOOST_ITERATOR_CATEGORY iterator_category_
|
||||
# else
|
||||
# define BOOST_ITERATOR_CATEGORY iterator_category
|
||||
# endif
|
||||
// Macro for supporting old compilers, no longer needed but kept
|
||||
// for backwards compatibility (it was documented).
|
||||
#define BOOST_ITERATOR_CATEGORY iterator_category
|
||||
|
||||
|
||||
template <class Iterator>
|
||||
@ -29,20 +21,20 @@ struct iterator_value
|
||||
{
|
||||
typedef typename boost::detail::iterator_traits<Iterator>::value_type type;
|
||||
};
|
||||
|
||||
|
||||
template <class Iterator>
|
||||
struct iterator_reference
|
||||
{
|
||||
typedef typename boost::detail::iterator_traits<Iterator>::reference type;
|
||||
};
|
||||
|
||||
|
||||
|
||||
|
||||
template <class Iterator>
|
||||
struct iterator_pointer
|
||||
{
|
||||
typedef typename boost::detail::iterator_traits<Iterator>::pointer type;
|
||||
};
|
||||
|
||||
|
||||
template <class Iterator>
|
||||
struct iterator_difference
|
||||
{
|
||||
@ -50,43 +42,19 @@ struct iterator_difference
|
||||
};
|
||||
|
||||
template <class Iterator>
|
||||
struct BOOST_ITERATOR_CATEGORY
|
||||
struct iterator_category
|
||||
{
|
||||
typedef typename boost::detail::iterator_traits<Iterator>::iterator_category type;
|
||||
};
|
||||
|
||||
# if BOOST_WORKAROUND(BOOST_MSVC, < 1300)
|
||||
template <>
|
||||
struct iterator_value<int>
|
||||
{
|
||||
typedef void type;
|
||||
};
|
||||
|
||||
template <>
|
||||
struct iterator_reference<int>
|
||||
{
|
||||
typedef void type;
|
||||
};
|
||||
} // namespace iterators
|
||||
|
||||
template <>
|
||||
struct iterator_pointer<int>
|
||||
{
|
||||
typedef void type;
|
||||
};
|
||||
|
||||
template <>
|
||||
struct iterator_difference<int>
|
||||
{
|
||||
typedef void type;
|
||||
};
|
||||
|
||||
template <>
|
||||
struct BOOST_ITERATOR_CATEGORY<int>
|
||||
{
|
||||
typedef void type;
|
||||
};
|
||||
# endif
|
||||
using iterators::iterator_value;
|
||||
using iterators::iterator_reference;
|
||||
using iterators::iterator_pointer;
|
||||
using iterators::iterator_difference;
|
||||
using iterators::iterator_category;
|
||||
|
||||
} // namespace boost::iterator
|
||||
} // namespace boost
|
||||
|
||||
#endif // ITERATOR_TRAITS_DWA200347_HPP
|
||||
|
95
include/boost/iterator/minimum_category.hpp
Normal file
95
include/boost/iterator/minimum_category.hpp
Normal file
@ -0,0 +1,95 @@
|
||||
// Copyright David Abrahams 2003. Use, modification and distribution is
|
||||
// subject to the Boost Software License, Version 1.0. (See accompanying
|
||||
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
|
||||
#ifndef BOOST_ITERATOR_MINIMUM_CATEGORY_HPP_INCLUDED_
|
||||
# define BOOST_ITERATOR_MINIMUM_CATEGORY_HPP_INCLUDED_
|
||||
|
||||
# include <boost/static_assert.hpp>
|
||||
# include <boost/type_traits/is_convertible.hpp>
|
||||
# include <boost/type_traits/is_same.hpp>
|
||||
|
||||
# include <boost/mpl/placeholders.hpp>
|
||||
# include <boost/mpl/aux_/lambda_support.hpp>
|
||||
|
||||
namespace boost {
|
||||
namespace iterators {
|
||||
namespace detail {
|
||||
|
||||
template <bool GreaterEqual, bool LessEqual>
|
||||
struct minimum_category_impl;
|
||||
|
||||
template <class T1, class T2>
|
||||
struct error_not_related_by_convertibility;
|
||||
|
||||
template <>
|
||||
struct minimum_category_impl<true,false>
|
||||
{
|
||||
template <class T1, class T2> struct apply
|
||||
{
|
||||
typedef T2 type;
|
||||
};
|
||||
};
|
||||
|
||||
template <>
|
||||
struct minimum_category_impl<false,true>
|
||||
{
|
||||
template <class T1, class T2> struct apply
|
||||
{
|
||||
typedef T1 type;
|
||||
};
|
||||
};
|
||||
|
||||
template <>
|
||||
struct minimum_category_impl<true,true>
|
||||
{
|
||||
template <class T1, class T2> struct apply
|
||||
{
|
||||
BOOST_STATIC_ASSERT((is_same<T1,T2>::value));
|
||||
typedef T1 type;
|
||||
};
|
||||
};
|
||||
|
||||
template <>
|
||||
struct minimum_category_impl<false,false>
|
||||
{
|
||||
template <class T1, class T2> struct apply
|
||||
: error_not_related_by_convertibility<T1,T2>
|
||||
{
|
||||
};
|
||||
};
|
||||
|
||||
} // namespace detail
|
||||
|
||||
//
|
||||
// Returns the minimum category type or fails to compile
|
||||
// if T1 and T2 are unrelated.
|
||||
//
|
||||
template <class T1 = mpl::_1, class T2 = mpl::_2>
|
||||
struct minimum_category
|
||||
{
|
||||
typedef boost::iterators::detail::minimum_category_impl<
|
||||
::boost::is_convertible<T1,T2>::value
|
||||
, ::boost::is_convertible<T2,T1>::value
|
||||
> outer;
|
||||
|
||||
typedef typename outer::template apply<T1,T2> inner;
|
||||
typedef typename inner::type type;
|
||||
|
||||
BOOST_MPL_AUX_LAMBDA_SUPPORT(2,minimum_category,(T1,T2))
|
||||
};
|
||||
|
||||
template <>
|
||||
struct minimum_category<mpl::_1,mpl::_2>
|
||||
{
|
||||
template <class T1, class T2>
|
||||
struct apply : minimum_category<T1,T2>
|
||||
{};
|
||||
|
||||
BOOST_MPL_AUX_LAMBDA_SUPPORT_SPEC(2,minimum_category,(mpl::_1,mpl::_2))
|
||||
};
|
||||
|
||||
} // namespace iterators
|
||||
|
||||
} // namespace boost
|
||||
|
||||
#endif // BOOST_ITERATOR_MINIMUM_CATEGORY_HPP_INCLUDED_
|
@ -13,28 +13,28 @@
|
||||
#include <boost/iterator/iterator_adaptor.hpp>
|
||||
|
||||
|
||||
namespace boost
|
||||
{
|
||||
namespace boost {
|
||||
namespace iterators {
|
||||
|
||||
template< class ElementIterator
|
||||
, class IndexIterator>
|
||||
class permutation_iterator
|
||||
: public iterator_adaptor<
|
||||
: public iterator_adaptor<
|
||||
permutation_iterator<ElementIterator, IndexIterator>
|
||||
, IndexIterator, typename detail::iterator_traits<ElementIterator>::value_type
|
||||
, use_default, typename detail::iterator_traits<ElementIterator>::reference>
|
||||
, IndexIterator, typename boost::detail::iterator_traits<ElementIterator>::value_type
|
||||
, use_default, typename boost::detail::iterator_traits<ElementIterator>::reference>
|
||||
{
|
||||
typedef iterator_adaptor<
|
||||
typedef iterator_adaptor<
|
||||
permutation_iterator<ElementIterator, IndexIterator>
|
||||
, IndexIterator, typename detail::iterator_traits<ElementIterator>::value_type
|
||||
, use_default, typename detail::iterator_traits<ElementIterator>::reference> super_t;
|
||||
, IndexIterator, typename boost::detail::iterator_traits<ElementIterator>::value_type
|
||||
, use_default, typename boost::detail::iterator_traits<ElementIterator>::reference> super_t;
|
||||
|
||||
friend class iterator_core_access;
|
||||
|
||||
public:
|
||||
permutation_iterator() : m_elt_iter() {}
|
||||
|
||||
explicit permutation_iterator(ElementIterator x, IndexIterator y)
|
||||
explicit permutation_iterator(ElementIterator x, IndexIterator y)
|
||||
: super_t(y), m_elt_iter(x) {}
|
||||
|
||||
template<class OtherElementIterator, class OtherIndexIterator>
|
||||
@ -54,18 +54,22 @@ private:
|
||||
template <class,class> friend class permutation_iterator;
|
||||
#else
|
||||
public:
|
||||
#endif
|
||||
#endif
|
||||
ElementIterator m_elt_iter;
|
||||
};
|
||||
|
||||
|
||||
template <class ElementIterator, class IndexIterator>
|
||||
permutation_iterator<ElementIterator, IndexIterator>
|
||||
inline permutation_iterator<ElementIterator, IndexIterator>
|
||||
make_permutation_iterator( ElementIterator e, IndexIterator i )
|
||||
{
|
||||
return permutation_iterator<ElementIterator, IndexIterator>( e, i );
|
||||
}
|
||||
|
||||
} // namespace iterators
|
||||
|
||||
using iterators::permutation_iterator;
|
||||
using iterators::make_permutation_iterator;
|
||||
|
||||
} // namespace boost
|
||||
|
||||
|
@ -11,8 +11,8 @@
|
||||
#include <boost/iterator.hpp>
|
||||
#include <boost/iterator/iterator_adaptor.hpp>
|
||||
|
||||
namespace boost
|
||||
{
|
||||
namespace boost {
|
||||
namespace iterators {
|
||||
|
||||
//
|
||||
//
|
||||
@ -28,7 +28,7 @@ namespace boost
|
||||
public:
|
||||
reverse_iterator() {}
|
||||
|
||||
explicit reverse_iterator(Iterator x)
|
||||
explicit reverse_iterator(Iterator x)
|
||||
: super_t(x) {}
|
||||
|
||||
template<class OtherIterator>
|
||||
@ -41,7 +41,7 @@ namespace boost
|
||||
|
||||
private:
|
||||
typename super_t::reference dereference() const { return *boost::prior(this->base()); }
|
||||
|
||||
|
||||
void increment() { --this->base_reference(); }
|
||||
void decrement() { ++this->base_reference(); }
|
||||
|
||||
@ -59,11 +59,16 @@ namespace boost
|
||||
};
|
||||
|
||||
template <class BidirectionalIterator>
|
||||
reverse_iterator<BidirectionalIterator> make_reverse_iterator(BidirectionalIterator x)
|
||||
inline reverse_iterator<BidirectionalIterator> make_reverse_iterator(BidirectionalIterator x)
|
||||
{
|
||||
return reverse_iterator<BidirectionalIterator>(x);
|
||||
}
|
||||
|
||||
} // namespace iterators
|
||||
|
||||
using iterators::reverse_iterator;
|
||||
using iterators::make_reverse_iterator;
|
||||
|
||||
} // namespace boost
|
||||
|
||||
#endif // BOOST_REVERSE_ITERATOR_23022003THW_HPP
|
||||
|
@ -26,16 +26,17 @@
|
||||
#if BOOST_WORKAROUND(BOOST_MSVC, BOOST_TESTED_AT(1310))
|
||||
# include <boost/type_traits/is_base_and_derived.hpp>
|
||||
|
||||
#endif
|
||||
#endif
|
||||
#include <boost/iterator/detail/config_def.hpp>
|
||||
|
||||
|
||||
namespace boost
|
||||
{
|
||||
namespace boost {
|
||||
namespace iterators {
|
||||
|
||||
template <class UnaryFunction, class Iterator, class Reference = use_default, class Value = use_default>
|
||||
class transform_iterator;
|
||||
|
||||
namespace detail
|
||||
namespace detail
|
||||
{
|
||||
// Compute the iterator_adaptor instantiation to be used for transform_iterator
|
||||
template <class UnaryFunc, class Iterator, class Reference, class Value>
|
||||
@ -72,10 +73,10 @@ namespace boost
|
||||
|
||||
template <class UnaryFunc, class Iterator, class Reference, class Value>
|
||||
class transform_iterator
|
||||
: public boost::detail::transform_iterator_base<UnaryFunc, Iterator, Reference, Value>::type
|
||||
: public boost::iterators::detail::transform_iterator_base<UnaryFunc, Iterator, Reference, Value>::type
|
||||
{
|
||||
typedef typename
|
||||
boost::detail::transform_iterator_base<UnaryFunc, Iterator, Reference, Value>::type
|
||||
boost::iterators::detail::transform_iterator_base<UnaryFunc, Iterator, Reference, Value>::type
|
||||
super_t;
|
||||
|
||||
friend class iterator_core_access;
|
||||
@ -95,7 +96,7 @@ namespace boost
|
||||
// don't provide this constructor if UnaryFunc is a
|
||||
// function pointer type, since it will be 0. Too dangerous.
|
||||
BOOST_STATIC_ASSERT(is_class<UnaryFunc>::value);
|
||||
#endif
|
||||
#endif
|
||||
}
|
||||
|
||||
template <
|
||||
@ -108,7 +109,7 @@ namespace boost
|
||||
, typename enable_if_convertible<OtherIterator, Iterator>::type* = 0
|
||||
#if !BOOST_WORKAROUND(BOOST_MSVC, == 1310)
|
||||
, typename enable_if_convertible<OtherUnaryFunction, UnaryFunc>::type* = 0
|
||||
#endif
|
||||
#endif
|
||||
)
|
||||
: super_t(t.base()), m_f(t.functor())
|
||||
{}
|
||||
@ -126,7 +127,7 @@ namespace boost
|
||||
};
|
||||
|
||||
template <class UnaryFunc, class Iterator>
|
||||
transform_iterator<UnaryFunc, Iterator>
|
||||
inline transform_iterator<UnaryFunc, Iterator>
|
||||
make_transform_iterator(Iterator it, UnaryFunc fun)
|
||||
{
|
||||
return transform_iterator<UnaryFunc, Iterator>(it, fun);
|
||||
@ -140,16 +141,9 @@ namespace boost
|
||||
// function pointer in the iterator be 0, leading to a runtime
|
||||
// crash.
|
||||
template <class UnaryFunc, class Iterator>
|
||||
#if BOOST_WORKAROUND(BOOST_MSVC, <= 1300)
|
||||
typename mpl::if_<
|
||||
#else
|
||||
typename iterators::enable_if<
|
||||
#endif
|
||||
inline typename iterators::enable_if<
|
||||
is_class<UnaryFunc> // We should probably find a cheaper test than is_class<>
|
||||
, transform_iterator<UnaryFunc, Iterator>
|
||||
#if BOOST_WORKAROUND(BOOST_MSVC, <= 1300)
|
||||
, int[3]
|
||||
#endif
|
||||
>::type
|
||||
make_transform_iterator(Iterator it)
|
||||
{
|
||||
@ -158,13 +152,18 @@ namespace boost
|
||||
|
||||
#if defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION ) && !defined(BOOST_NO_FUNCTION_TEMPLATE_ORDERING)
|
||||
template <class Return, class Argument, class Iterator>
|
||||
transform_iterator< Return (*)(Argument), Iterator, Return>
|
||||
inline transform_iterator< Return (*)(Argument), Iterator, Return>
|
||||
make_transform_iterator(Iterator it, Return (*fun)(Argument))
|
||||
{
|
||||
return transform_iterator<Return (*)(Argument), Iterator, Return>(it, fun);
|
||||
}
|
||||
#endif
|
||||
|
||||
} // namespace iterators
|
||||
|
||||
using iterators::transform_iterator;
|
||||
using iterators::make_transform_iterator;
|
||||
|
||||
} // namespace boost
|
||||
|
||||
#include <boost/iterator/detail/config_undef.hpp>
|
||||
|
@ -1,6 +1,8 @@
|
||||
// Copyright David Abrahams and Thomas Becker 2000-2006. Distributed
|
||||
// under the Boost Software License, Version 1.0. (See accompanying
|
||||
// file LICENSE_1_0.txt or copy at
|
||||
// Copyright David Abrahams and Thomas Becker 2000-2006.
|
||||
// Copyright Kohei Takahashi 2012-2014.
|
||||
//
|
||||
// Distributed under the Boost Software License, Version 1.0. (See
|
||||
// accompanying file LICENSE_1_0.txt or copy at
|
||||
// http://www.boost.org/LICENSE_1_0.txt)
|
||||
|
||||
#ifndef BOOST_ZIP_ITERATOR_TMB_07_13_2003_HPP_
|
||||
@ -12,44 +14,34 @@
|
||||
#include <boost/iterator/iterator_facade.hpp>
|
||||
#include <boost/iterator/iterator_adaptor.hpp> // for enable_if_convertible
|
||||
#include <boost/iterator/iterator_categories.hpp>
|
||||
#include <boost/detail/iterator.hpp>
|
||||
|
||||
#include <boost/iterator/detail/minimum_category.hpp>
|
||||
#include <boost/iterator/minimum_category.hpp>
|
||||
|
||||
#include <boost/tuple/tuple.hpp>
|
||||
#include <utility> // for std::pair
|
||||
#include <boost/fusion/adapted/boost_tuple.hpp> // for backward compatibility
|
||||
|
||||
#include <boost/type_traits/is_same.hpp>
|
||||
#include <boost/mpl/and.hpp>
|
||||
#include <boost/mpl/apply.hpp>
|
||||
#include <boost/mpl/eval_if.hpp>
|
||||
#include <boost/mpl/lambda.hpp>
|
||||
#include <boost/type_traits/remove_reference.hpp>
|
||||
#include <boost/type_traits/remove_cv.hpp>
|
||||
|
||||
#include <boost/mpl/at.hpp>
|
||||
#include <boost/mpl/fold.hpp>
|
||||
#include <boost/mpl/transform.hpp>
|
||||
#include <boost/mpl/placeholders.hpp>
|
||||
#include <boost/mpl/aux_/lambda_support.hpp>
|
||||
|
||||
#include <boost/fusion/algorithm/iteration/for_each.hpp>
|
||||
#include <boost/fusion/algorithm/transformation/transform.hpp>
|
||||
#include <boost/fusion/sequence/convert.hpp>
|
||||
#include <boost/fusion/sequence/intrinsic/at_c.hpp>
|
||||
#include <boost/fusion/sequence/comparison/equal_to.hpp>
|
||||
#include <boost/fusion/support/tag_of_fwd.hpp>
|
||||
|
||||
namespace boost {
|
||||
namespace iterators {
|
||||
|
||||
// Zip iterator forward declaration for zip_iterator_base
|
||||
template<typename IteratorTuple>
|
||||
class zip_iterator;
|
||||
|
||||
// One important design goal of the zip_iterator is to isolate all
|
||||
// functionality whose implementation relies on the current tuple
|
||||
// implementation. This goal has been achieved as follows: Inside
|
||||
// the namespace detail there is a namespace tuple_impl_specific.
|
||||
// This namespace encapsulates all functionality that is specific
|
||||
// to the current Boost tuple implementation. More precisely, the
|
||||
// namespace tuple_impl_specific provides the following tuple
|
||||
// algorithms and meta-algorithms for the current Boost tuple
|
||||
// implementation:
|
||||
//
|
||||
// tuple_meta_transform
|
||||
// tuple_meta_accumulate
|
||||
// tuple_transform
|
||||
// tuple_for_each
|
||||
//
|
||||
// If the tuple implementation changes, all that needs to be
|
||||
// replaced is the implementation of these four (meta-)algorithms.
|
||||
|
||||
namespace detail
|
||||
{
|
||||
|
||||
@ -60,7 +52,7 @@ namespace boost {
|
||||
{
|
||||
public:
|
||||
advance_iterator(DiffType step) : m_step(step) {}
|
||||
|
||||
|
||||
template<typename Iterator>
|
||||
void operator()(Iterator& it) const
|
||||
{ it += m_step; }
|
||||
@ -72,337 +64,102 @@ namespace boost {
|
||||
struct increment_iterator
|
||||
{
|
||||
template<typename Iterator>
|
||||
void operator()(Iterator& it)
|
||||
void operator()(Iterator& it) const
|
||||
{ ++it; }
|
||||
};
|
||||
//
|
||||
struct decrement_iterator
|
||||
{
|
||||
template<typename Iterator>
|
||||
void operator()(Iterator& it)
|
||||
void operator()(Iterator& it) const
|
||||
{ --it; }
|
||||
};
|
||||
//
|
||||
struct dereference_iterator
|
||||
{
|
||||
template<typename Iterator>
|
||||
struct apply
|
||||
{
|
||||
template<typename>
|
||||
struct result;
|
||||
|
||||
template<typename This, typename Iterator>
|
||||
struct result<This(Iterator)>
|
||||
{
|
||||
typedef typename
|
||||
iterator_traits<Iterator>::reference
|
||||
type;
|
||||
remove_reference<typename remove_cv<Iterator>::type>::type
|
||||
iterator;
|
||||
|
||||
typedef typename iterator_reference<iterator>::type type;
|
||||
};
|
||||
|
||||
template<typename Iterator>
|
||||
typename apply<Iterator>::type operator()(Iterator const& it)
|
||||
typename result<dereference_iterator(Iterator)>::type
|
||||
operator()(Iterator const& it) const
|
||||
{ return *it; }
|
||||
};
|
||||
|
||||
|
||||
// The namespace tuple_impl_specific provides two meta-
|
||||
// algorithms and two algorithms for tuples.
|
||||
//
|
||||
namespace tuple_impl_specific
|
||||
{
|
||||
// Meta-transform algorithm for tuples
|
||||
//
|
||||
template<typename Tuple, class UnaryMetaFun>
|
||||
struct tuple_meta_transform;
|
||||
|
||||
template<typename Tuple, class UnaryMetaFun>
|
||||
struct tuple_meta_transform_impl
|
||||
{
|
||||
typedef tuples::cons<
|
||||
typename mpl::apply1<
|
||||
typename mpl::lambda<UnaryMetaFun>::type
|
||||
, typename Tuple::head_type
|
||||
>::type
|
||||
, typename tuple_meta_transform<
|
||||
typename Tuple::tail_type
|
||||
, UnaryMetaFun
|
||||
>::type
|
||||
> type;
|
||||
};
|
||||
|
||||
template<typename Tuple, class UnaryMetaFun>
|
||||
struct tuple_meta_transform
|
||||
: mpl::eval_if<
|
||||
boost::is_same<Tuple, tuples::null_type>
|
||||
, mpl::identity<tuples::null_type>
|
||||
, tuple_meta_transform_impl<Tuple, UnaryMetaFun>
|
||||
>
|
||||
{
|
||||
};
|
||||
|
||||
// Meta-accumulate algorithm for tuples. Note: The template
|
||||
// parameter StartType corresponds to the initial value in
|
||||
// ordinary accumulation.
|
||||
//
|
||||
template<class Tuple, class BinaryMetaFun, class StartType>
|
||||
struct tuple_meta_accumulate;
|
||||
|
||||
template<
|
||||
typename Tuple
|
||||
, class BinaryMetaFun
|
||||
, typename StartType
|
||||
>
|
||||
struct tuple_meta_accumulate_impl
|
||||
{
|
||||
typedef typename mpl::apply2<
|
||||
typename mpl::lambda<BinaryMetaFun>::type
|
||||
, typename Tuple::head_type
|
||||
, typename tuple_meta_accumulate<
|
||||
typename Tuple::tail_type
|
||||
, BinaryMetaFun
|
||||
, StartType
|
||||
>::type
|
||||
>::type type;
|
||||
};
|
||||
|
||||
template<
|
||||
typename Tuple
|
||||
, class BinaryMetaFun
|
||||
, typename StartType
|
||||
>
|
||||
struct tuple_meta_accumulate
|
||||
: mpl::eval_if<
|
||||
#if BOOST_WORKAROUND(BOOST_MSVC, < 1300)
|
||||
mpl::or_<
|
||||
#endif
|
||||
boost::is_same<Tuple, tuples::null_type>
|
||||
#if BOOST_WORKAROUND(BOOST_MSVC, < 1300)
|
||||
, boost::is_same<Tuple,int>
|
||||
>
|
||||
#endif
|
||||
, mpl::identity<StartType>
|
||||
, tuple_meta_accumulate_impl<
|
||||
Tuple
|
||||
, BinaryMetaFun
|
||||
, StartType
|
||||
>
|
||||
>
|
||||
{
|
||||
};
|
||||
|
||||
#if defined(BOOST_NO_FUNCTION_TEMPLATE_ORDERING) \
|
||||
|| ( \
|
||||
BOOST_WORKAROUND(BOOST_INTEL_CXX_VERSION, != 0) && defined(_MSC_VER) \
|
||||
)
|
||||
// Not sure why intel's partial ordering fails in this case, but I'm
|
||||
// assuming int's an MSVC bug-compatibility feature.
|
||||
|
||||
# define BOOST_TUPLE_ALGO_DISPATCH
|
||||
# define BOOST_TUPLE_ALGO(algo) algo##_impl
|
||||
# define BOOST_TUPLE_ALGO_TERMINATOR , int
|
||||
# define BOOST_TUPLE_ALGO_RECURSE , ...
|
||||
#else
|
||||
# define BOOST_TUPLE_ALGO(algo) algo
|
||||
# define BOOST_TUPLE_ALGO_TERMINATOR
|
||||
# define BOOST_TUPLE_ALGO_RECURSE
|
||||
#endif
|
||||
|
||||
// transform algorithm for tuples. The template parameter Fun
|
||||
// must be a unary functor which is also a unary metafunction
|
||||
// class that computes its return type based on its argument
|
||||
// type. For example:
|
||||
//
|
||||
// struct to_ptr
|
||||
// {
|
||||
// template <class Arg>
|
||||
// struct apply
|
||||
// {
|
||||
// typedef Arg* type;
|
||||
// }
|
||||
//
|
||||
// template <class Arg>
|
||||
// Arg* operator()(Arg x);
|
||||
// };
|
||||
template<typename Fun>
|
||||
tuples::null_type BOOST_TUPLE_ALGO(tuple_transform)
|
||||
(tuples::null_type const&, Fun BOOST_TUPLE_ALGO_TERMINATOR)
|
||||
{ return tuples::null_type(); }
|
||||
|
||||
template<typename Tuple, typename Fun>
|
||||
typename tuple_meta_transform<
|
||||
Tuple
|
||||
, Fun
|
||||
>::type
|
||||
|
||||
BOOST_TUPLE_ALGO(tuple_transform)(
|
||||
const Tuple& t,
|
||||
Fun f
|
||||
BOOST_TUPLE_ALGO_RECURSE
|
||||
)
|
||||
{
|
||||
typedef typename tuple_meta_transform<
|
||||
BOOST_DEDUCED_TYPENAME Tuple::tail_type
|
||||
, Fun
|
||||
>::type transformed_tail_type;
|
||||
|
||||
return tuples::cons<
|
||||
BOOST_DEDUCED_TYPENAME mpl::apply1<
|
||||
Fun, BOOST_DEDUCED_TYPENAME Tuple::head_type
|
||||
>::type
|
||||
, transformed_tail_type
|
||||
>(
|
||||
f(boost::tuples::get<0>(t)), tuple_transform(t.get_tail(), f)
|
||||
);
|
||||
}
|
||||
|
||||
#ifdef BOOST_TUPLE_ALGO_DISPATCH
|
||||
template<typename Tuple, typename Fun>
|
||||
typename tuple_meta_transform<
|
||||
Tuple
|
||||
, Fun
|
||||
>::type
|
||||
|
||||
tuple_transform(
|
||||
const Tuple& t,
|
||||
Fun f
|
||||
)
|
||||
{
|
||||
return tuple_transform_impl(t, f, 1);
|
||||
}
|
||||
#endif
|
||||
|
||||
// for_each algorithm for tuples.
|
||||
//
|
||||
template<typename Fun>
|
||||
Fun BOOST_TUPLE_ALGO(tuple_for_each)(
|
||||
tuples::null_type
|
||||
, Fun f BOOST_TUPLE_ALGO_TERMINATOR
|
||||
)
|
||||
{ return f; }
|
||||
|
||||
|
||||
template<typename Tuple, typename Fun>
|
||||
Fun BOOST_TUPLE_ALGO(tuple_for_each)(
|
||||
Tuple& t
|
||||
, Fun f BOOST_TUPLE_ALGO_RECURSE)
|
||||
{
|
||||
f( t.get_head() );
|
||||
return tuple_for_each(t.get_tail(), f);
|
||||
}
|
||||
|
||||
#ifdef BOOST_TUPLE_ALGO_DISPATCH
|
||||
template<typename Tuple, typename Fun>
|
||||
Fun
|
||||
tuple_for_each(
|
||||
Tuple& t,
|
||||
Fun f
|
||||
)
|
||||
{
|
||||
return tuple_for_each_impl(t, f, 1);
|
||||
}
|
||||
#endif
|
||||
|
||||
// Equality of tuples. NOTE: "==" for tuples currently (7/2003)
|
||||
// has problems under some compilers, so I just do my own.
|
||||
// No point in bringing in a bunch of #ifdefs here. This is
|
||||
// going to go away with the next tuple implementation anyway.
|
||||
//
|
||||
inline bool tuple_equal(tuples::null_type, tuples::null_type)
|
||||
{ return true; }
|
||||
|
||||
template<typename Tuple1, typename Tuple2>
|
||||
bool tuple_equal(
|
||||
Tuple1 const& t1,
|
||||
Tuple2 const& t2
|
||||
)
|
||||
{
|
||||
return t1.get_head() == t2.get_head() &&
|
||||
tuple_equal(t1.get_tail(), t2.get_tail());
|
||||
}
|
||||
}
|
||||
//
|
||||
// end namespace tuple_impl_specific
|
||||
|
||||
template<typename Iterator>
|
||||
struct iterator_reference
|
||||
{
|
||||
typedef typename iterator_traits<Iterator>::reference type;
|
||||
};
|
||||
|
||||
#ifdef BOOST_MPL_CFG_NO_FULL_LAMBDA_SUPPORT
|
||||
// Hack because BOOST_MPL_AUX_LAMBDA_SUPPORT doesn't seem to work
|
||||
// out well. Instantiating the nested apply template also
|
||||
// requires instantiating iterator_traits on the
|
||||
// placeholder. Instead we just specialize it as a metafunction
|
||||
// class.
|
||||
template<>
|
||||
struct iterator_reference<mpl::_1>
|
||||
{
|
||||
template <class T>
|
||||
struct apply : iterator_reference<T> {};
|
||||
};
|
||||
#endif
|
||||
|
||||
// Metafunction to obtain the type of the tuple whose element types
|
||||
// are the reference types of an iterator tuple.
|
||||
//
|
||||
template<typename IteratorTuple>
|
||||
struct tuple_of_references
|
||||
: tuple_impl_specific::tuple_meta_transform<
|
||||
IteratorTuple,
|
||||
: mpl::transform<
|
||||
IteratorTuple,
|
||||
iterator_reference<mpl::_1>
|
||||
>
|
||||
{
|
||||
};
|
||||
|
||||
// Specialization for std::pair
|
||||
template<typename Iterator1, typename Iterator2>
|
||||
struct tuple_of_references<std::pair<Iterator1, Iterator2> >
|
||||
{
|
||||
typedef std::pair<
|
||||
typename iterator_reference<Iterator1>::type
|
||||
, typename iterator_reference<Iterator2>::type
|
||||
> type;
|
||||
};
|
||||
|
||||
// Metafunction to obtain the minimal traversal tag in a tuple
|
||||
// of iterators.
|
||||
//
|
||||
template<typename IteratorTuple>
|
||||
struct minimum_traversal_category_in_iterator_tuple
|
||||
{
|
||||
typedef typename tuple_impl_specific::tuple_meta_transform<
|
||||
typedef typename mpl::transform<
|
||||
IteratorTuple
|
||||
, pure_traversal_tag<iterator_traversal<> >
|
||||
>::type tuple_of_traversal_tags;
|
||||
|
||||
typedef typename tuple_impl_specific::tuple_meta_accumulate<
|
||||
|
||||
typedef typename mpl::fold<
|
||||
tuple_of_traversal_tags
|
||||
, minimum_category<>
|
||||
, random_access_traversal_tag
|
||||
, minimum_category<>
|
||||
>::type type;
|
||||
};
|
||||
|
||||
#if BOOST_WORKAROUND(BOOST_MSVC, < 1300) // ETI workaround
|
||||
template <>
|
||||
struct minimum_traversal_category_in_iterator_tuple<int>
|
||||
{
|
||||
typedef int type;
|
||||
};
|
||||
#endif
|
||||
|
||||
// We need to call tuple_meta_accumulate with mpl::and_ as the
|
||||
// accumulating functor. To this end, we need to wrap it into
|
||||
// a struct that has exactly two arguments (that is, template
|
||||
// parameters) and not five, like mpl::and_ does.
|
||||
//
|
||||
template<typename Arg1, typename Arg2>
|
||||
struct and_with_two_args
|
||||
: mpl::and_<Arg1, Arg2>
|
||||
{
|
||||
};
|
||||
|
||||
# ifdef BOOST_MPL_CFG_NO_FULL_LAMBDA_SUPPORT
|
||||
// Hack because BOOST_MPL_AUX_LAMBDA_SUPPORT doesn't seem to work
|
||||
// out well. In this case I think it's an MPL bug
|
||||
template<>
|
||||
struct and_with_two_args<mpl::_1,mpl::_2>
|
||||
{
|
||||
template <class A1, class A2>
|
||||
struct apply : mpl::and_<A1,A2>
|
||||
{};
|
||||
};
|
||||
# endif
|
||||
template<typename Iterator1, typename Iterator2>
|
||||
struct minimum_traversal_category_in_iterator_tuple<std::pair<Iterator1, Iterator2> >
|
||||
{
|
||||
typedef typename pure_traversal_tag<
|
||||
typename iterator_traversal<Iterator1>::type
|
||||
>::type iterator1_traversal;
|
||||
typedef typename pure_traversal_tag<
|
||||
typename iterator_traversal<Iterator2>::type
|
||||
>::type iterator2_traversal;
|
||||
|
||||
typedef typename minimum_category<
|
||||
iterator1_traversal
|
||||
, typename minimum_category<
|
||||
iterator2_traversal
|
||||
, random_access_traversal_tag
|
||||
>::type
|
||||
>::type type;
|
||||
};
|
||||
|
||||
///////////////////////////////////////////////////////////////////
|
||||
//
|
||||
// Class zip_iterator_base
|
||||
//
|
||||
// Builds and exposes the iterator facade type from which the zip
|
||||
// Builds and exposes the iterator facade type from which the zip
|
||||
// iterator will be derived.
|
||||
//
|
||||
template<typename IteratorTuple>
|
||||
@ -411,30 +168,30 @@ namespace boost {
|
||||
private:
|
||||
// Reference type is the type of the tuple obtained from the
|
||||
// iterators' reference types.
|
||||
typedef typename
|
||||
typedef typename
|
||||
detail::tuple_of_references<IteratorTuple>::type reference;
|
||||
|
||||
|
||||
// Value type is the same as reference type.
|
||||
typedef reference value_type;
|
||||
|
||||
|
||||
// Difference type is the first iterator's difference type
|
||||
typedef typename iterator_traits<
|
||||
typename tuples::element<0, IteratorTuple>::type
|
||||
>::difference_type difference_type;
|
||||
|
||||
// Traversal catetgory is the minimum traversal category in the
|
||||
typedef typename iterator_difference<
|
||||
typename mpl::at_c<IteratorTuple, 0>::type
|
||||
>::type difference_type;
|
||||
|
||||
// Traversal catetgory is the minimum traversal category in the
|
||||
// iterator tuple.
|
||||
typedef typename
|
||||
typedef typename
|
||||
detail::minimum_traversal_category_in_iterator_tuple<
|
||||
IteratorTuple
|
||||
>::type traversal_category;
|
||||
public:
|
||||
|
||||
|
||||
// The iterator facade type from which the zip iterator will
|
||||
// be derived.
|
||||
typedef iterator_facade<
|
||||
zip_iterator<IteratorTuple>,
|
||||
value_type,
|
||||
value_type,
|
||||
traversal_category,
|
||||
reference,
|
||||
difference_type
|
||||
@ -446,35 +203,59 @@ namespace boost {
|
||||
{
|
||||
typedef int type;
|
||||
};
|
||||
|
||||
template <typename reference>
|
||||
struct converter
|
||||
{
|
||||
template <typename Seq>
|
||||
static reference call(Seq seq)
|
||||
{
|
||||
typedef typename fusion::traits::tag_of<reference>::type tag;
|
||||
return fusion::convert<tag>(seq);
|
||||
}
|
||||
};
|
||||
|
||||
template <typename Reference1, typename Reference2>
|
||||
struct converter<std::pair<Reference1, Reference2> >
|
||||
{
|
||||
typedef std::pair<Reference1, Reference2> reference;
|
||||
template <typename Seq>
|
||||
static reference call(Seq seq)
|
||||
{
|
||||
return reference(
|
||||
fusion::at_c<0>(seq)
|
||||
, fusion::at_c<1>(seq));
|
||||
}
|
||||
};
|
||||
}
|
||||
|
||||
|
||||
/////////////////////////////////////////////////////////////////////
|
||||
//
|
||||
// zip_iterator class definition
|
||||
//
|
||||
template<typename IteratorTuple>
|
||||
class zip_iterator :
|
||||
class zip_iterator :
|
||||
public detail::zip_iterator_base<IteratorTuple>::type
|
||||
{
|
||||
{
|
||||
|
||||
// Typedef super_t as our base class.
|
||||
typedef typename
|
||||
// Typedef super_t as our base class.
|
||||
typedef typename
|
||||
detail::zip_iterator_base<IteratorTuple>::type super_t;
|
||||
|
||||
// iterator_core_access is the iterator's best friend.
|
||||
friend class iterator_core_access;
|
||||
|
||||
public:
|
||||
|
||||
|
||||
// Construction
|
||||
// ============
|
||||
|
||||
|
||||
// Default constructor
|
||||
zip_iterator() { }
|
||||
|
||||
// Constructor from iterator tuple
|
||||
zip_iterator(IteratorTuple iterator_tuple)
|
||||
: m_iterator_tuple(iterator_tuple)
|
||||
zip_iterator(IteratorTuple iterator_tuple)
|
||||
: m_iterator_tuple(iterator_tuple)
|
||||
{ }
|
||||
|
||||
// Copy constructor
|
||||
@ -493,18 +274,19 @@ namespace boost {
|
||||
{ return m_iterator_tuple; }
|
||||
|
||||
private:
|
||||
|
||||
|
||||
// Implementation of Iterator Operations
|
||||
// =====================================
|
||||
|
||||
|
||||
// Dereferencing returns a tuple built from the dereferenced
|
||||
// iterators in the iterator tuple.
|
||||
typename super_t::reference dereference() const
|
||||
{
|
||||
return detail::tuple_impl_specific::tuple_transform(
|
||||
get_iterator_tuple(),
|
||||
detail::dereference_iterator()
|
||||
);
|
||||
{
|
||||
typedef typename super_t::reference reference;
|
||||
typedef detail::converter<reference> gen;
|
||||
return gen::call(fusion::transform(
|
||||
get_iterator_tuple(),
|
||||
detail::dereference_iterator()));
|
||||
}
|
||||
|
||||
// Two zip iterators are equal if all iterators in the iterator
|
||||
@ -517,69 +299,70 @@ namespace boost {
|
||||
// under several compilers. No point in bringing in a bunch
|
||||
// of #ifdefs here.
|
||||
//
|
||||
template<typename OtherIteratorTuple>
|
||||
template<typename OtherIteratorTuple>
|
||||
bool equal(const zip_iterator<OtherIteratorTuple>& other) const
|
||||
{
|
||||
return detail::tuple_impl_specific::tuple_equal(
|
||||
get_iterator_tuple(),
|
||||
other.get_iterator_tuple()
|
||||
);
|
||||
return fusion::equal_to(
|
||||
get_iterator_tuple(),
|
||||
other.get_iterator_tuple());
|
||||
}
|
||||
|
||||
// Advancing a zip iterator means to advance all iterators in the
|
||||
// iterator tuple.
|
||||
void advance(typename super_t::difference_type n)
|
||||
{
|
||||
detail::tuple_impl_specific::tuple_for_each(
|
||||
{
|
||||
fusion::for_each(
|
||||
m_iterator_tuple,
|
||||
detail::advance_iterator<BOOST_DEDUCED_TYPENAME super_t::difference_type>(n)
|
||||
);
|
||||
detail::advance_iterator<BOOST_DEDUCED_TYPENAME super_t::difference_type>(n));
|
||||
}
|
||||
// Incrementing a zip iterator means to increment all iterators in
|
||||
// the iterator tuple.
|
||||
void increment()
|
||||
{
|
||||
detail::tuple_impl_specific::tuple_for_each(
|
||||
m_iterator_tuple,
|
||||
detail::increment_iterator()
|
||||
);
|
||||
{
|
||||
fusion::for_each(
|
||||
m_iterator_tuple,
|
||||
detail::increment_iterator());
|
||||
}
|
||||
|
||||
|
||||
// Decrementing a zip iterator means to decrement all iterators in
|
||||
// the iterator tuple.
|
||||
void decrement()
|
||||
{
|
||||
detail::tuple_impl_specific::tuple_for_each(
|
||||
m_iterator_tuple,
|
||||
detail::decrement_iterator()
|
||||
);
|
||||
{
|
||||
fusion::for_each(
|
||||
m_iterator_tuple,
|
||||
detail::decrement_iterator());
|
||||
}
|
||||
|
||||
|
||||
// Distance is calculated using the first iterator in the tuple.
|
||||
template<typename OtherIteratorTuple>
|
||||
typename super_t::difference_type distance_to(
|
||||
const zip_iterator<OtherIteratorTuple>& other
|
||||
) const
|
||||
{
|
||||
return boost::tuples::get<0>(other.get_iterator_tuple()) -
|
||||
boost::tuples::get<0>(this->get_iterator_tuple());
|
||||
{
|
||||
return fusion::at_c<0>(other.get_iterator_tuple()) -
|
||||
fusion::at_c<0>(this->get_iterator_tuple());
|
||||
}
|
||||
|
||||
|
||||
// Data Members
|
||||
// ============
|
||||
|
||||
|
||||
// The iterator tuple.
|
||||
IteratorTuple m_iterator_tuple;
|
||||
|
||||
|
||||
};
|
||||
|
||||
// Make function for zip iterator
|
||||
//
|
||||
template<typename IteratorTuple>
|
||||
zip_iterator<IteratorTuple>
|
||||
template<typename IteratorTuple>
|
||||
inline zip_iterator<IteratorTuple>
|
||||
make_zip_iterator(IteratorTuple t)
|
||||
{ return zip_iterator<IteratorTuple>(t); }
|
||||
|
||||
}
|
||||
} // namespace iterators
|
||||
|
||||
using iterators::zip_iterator;
|
||||
using iterators::make_zip_iterator;
|
||||
|
||||
} // namespace boost
|
||||
|
||||
#endif
|
||||
|
@ -15,6 +15,7 @@
|
||||
|
||||
#ifndef BOOST_NO_OPERATORS_IN_NAMESPACE
|
||||
namespace boost {
|
||||
namespace iterators {
|
||||
#endif
|
||||
|
||||
// this should use random_access_iterator_helper but I've had
|
||||
@ -61,13 +62,19 @@ inline int_iterator<IntT>
|
||||
operator+(IntT n, int_iterator<IntT> t) { t += n; return t; }
|
||||
|
||||
#ifndef BOOST_NO_OPERATORS_IN_NAMESPACE
|
||||
} /* namespace iterators */
|
||||
|
||||
using iterators::int_iterator;
|
||||
|
||||
} /* namespace boost */
|
||||
#endif
|
||||
|
||||
#ifdef BOOST_NO_OPERATORS_IN_NAMESPACE
|
||||
namespace boost {
|
||||
using ::int_iterator;
|
||||
}
|
||||
using ::int_iterator;
|
||||
namespace iterators {
|
||||
using ::int_iterator;
|
||||
}}
|
||||
#endif
|
||||
|
||||
|
||||
|
@ -29,11 +29,11 @@
|
||||
namespace boost {
|
||||
|
||||
// use this for the value type
|
||||
struct dummyT {
|
||||
struct dummyT {
|
||||
dummyT() { }
|
||||
dummyT(detail::dummy_constructor) { }
|
||||
dummyT(int x) : m_x(x) { }
|
||||
int foo() const { return m_x; }
|
||||
int foo() const { return m_x; }
|
||||
bool operator==(const dummyT& d) const { return m_x == d.m_x; }
|
||||
int m_x;
|
||||
};
|
||||
@ -41,9 +41,10 @@ struct dummyT {
|
||||
}
|
||||
|
||||
namespace boost {
|
||||
namespace iterators {
|
||||
|
||||
// Tests whether type Iterator satisfies the requirements for a
|
||||
// TrivialIterator.
|
||||
// TrivialIterator.
|
||||
// Preconditions: i != j, *i == val
|
||||
template <class Iterator, class T>
|
||||
void trivial_iterator_test(const Iterator i, const Iterator j, T val)
|
||||
@ -84,7 +85,7 @@ void mutable_trivial_iterator_test(const Iterator i, const Iterator j, T val)
|
||||
|
||||
// Preconditions: *i == v1, *++i == v2
|
||||
template <class Iterator, class T>
|
||||
void input_iterator_test(Iterator i, T v1, T v2)
|
||||
void input_iterator_test(Iterator i, T v1, T v2)
|
||||
{
|
||||
Iterator i1(i);
|
||||
|
||||
@ -150,7 +151,7 @@ template <> struct lvalue_test<true> {
|
||||
#endif
|
||||
|
||||
template <class Iterator, class T>
|
||||
void forward_iterator_test(Iterator i, T v1, T v2)
|
||||
void forward_iterator_test(Iterator i, T v1, T v2)
|
||||
{
|
||||
input_iterator_test(i, v1, v2);
|
||||
|
||||
@ -215,7 +216,7 @@ void random_access_iterator_test(Iterator i, int N, TrueVals vals)
|
||||
int c;
|
||||
|
||||
typedef typename boost::detail::iterator_traits<Iterator>::value_type value_type;
|
||||
|
||||
|
||||
for (c = 0; c < N-1; ++c) {
|
||||
assert(i == j + c);
|
||||
assert(*i == vals[c]);
|
||||
@ -234,7 +235,7 @@ void random_access_iterator_test(Iterator i, int N, TrueVals vals)
|
||||
assert(i == k - c);
|
||||
assert(*i == vals[N - 1 - c]);
|
||||
assert(*i == boost::implicit_cast<value_type>(j[N - 1 - c]));
|
||||
Iterator q = k - c;
|
||||
Iterator q = k - c;
|
||||
assert(*i == *q);
|
||||
assert(i > j);
|
||||
assert(i >= j);
|
||||
@ -260,6 +261,18 @@ void const_nonconst_iterator_test(Iterator i, ConstIterator j)
|
||||
assert(i == k);
|
||||
}
|
||||
|
||||
} // namespace iterators
|
||||
|
||||
using iterators::undefined;
|
||||
using iterators::trivial_iterator_test;
|
||||
using iterators::mutable_trivial_iterator_test;
|
||||
using iterators::input_iterator_test;
|
||||
using iterators::lvalue_test;
|
||||
using iterators::forward_iterator_test;
|
||||
using iterators::bidirectional_iterator_test;
|
||||
using iterators::random_access_iterator_test;
|
||||
using iterators::const_nonconst_iterator_test;
|
||||
|
||||
} // namespace boost
|
||||
|
||||
#endif // BOOST_ITERATOR_TESTS_HPP
|
||||
|
Some files were not shown because too many files have changed in this diff Show More
Reference in New Issue
Block a user