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resolved title level problem

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[SVN r21625]
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Jeremy Siek
2004-01-12 15:02:21 +00:00
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@ -3,7 +3,7 @@
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head> <head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta name="generator" content="Docutils 0.3.0: http://docutils.sourceforge.net/" /> <meta name="generator" content="Docutils 0.2.8: http://docutils.sourceforge.net/" />
<title>Iterator Facade and Adaptor</title> <title>Iterator Facade and Adaptor</title>
<meta name="author" content="David Abrahams, Jeremy Siek, Thomas Witt" /> <meta name="author" content="David Abrahams, Jeremy Siek, Thomas Witt" />
<meta name="organization" content="Boost Consulting, Indiana University Open Systems Lab, University of Hanover Institute for Transport Railway Operation and Construction" /> <meta name="organization" content="Boost Consulting, Indiana University Open Systems Lab, University of Hanover Institute for Transport Railway Operation and Construction" />
@ -75,67 +75,63 @@ by adapting other iterators.</td>
<li><a class="reference" href="#proposed-text" id="id25" name="id25">Proposed Text</a><ul> <li><a class="reference" href="#proposed-text" id="id25" name="id25">Proposed Text</a><ul>
<li><a class="reference" href="#header-iterator-helper-synopsis-lib-iterator-helper-synopsis" id="id26" name="id26">Header <tt class="literal"><span class="pre">&lt;iterator_helper&gt;</span></tt> synopsis [lib.iterator.helper.synopsis]</a></li> <li><a class="reference" href="#header-iterator-helper-synopsis-lib-iterator-helper-synopsis" id="id26" name="id26">Header <tt class="literal"><span class="pre">&lt;iterator_helper&gt;</span></tt> synopsis [lib.iterator.helper.synopsis]</a></li>
<li><a class="reference" href="#iterator-facade-lib-iterator-facade" id="id27" name="id27">Iterator facade [lib.iterator.facade]</a><ul> <li><a class="reference" href="#iterator-facade-lib-iterator-facade" id="id27" name="id27">Iterator facade [lib.iterator.facade]</a><ul>
<li><a class="reference" href="#class-template-iterator-facade" id="id28" name="id28">Class template <tt class="literal"><span class="pre">iterator_facade</span></tt></a><ul> <li><a class="reference" href="#iterator-facade-usage" id="id28" name="id28"><tt class="literal"><span class="pre">iterator_facade</span></tt> usage</a><ul>
<li><a class="reference" href="#iterator-facade-usage" id="id29" name="id29"><tt class="literal"><span class="pre">iterator_facade</span></tt> usage</a><ul> <li><a class="reference" href="#iterator-facade-core-operations" id="id29" name="id29"><tt class="literal"><span class="pre">iterator_facade</span></tt> Core Operations</a></li>
<li><a class="reference" href="#iterator-facade-core-operations" id="id30" name="id30"><tt class="literal"><span class="pre">iterator_facade</span></tt> Core Operations</a></li>
</ul> </ul>
</li> </li>
<li><a class="reference" href="#iterator-facade-iterator-category" id="id31" name="id31"><tt class="literal"><span class="pre">iterator_facade</span></tt> iterator category</a></li> <li><a class="reference" href="#iterator-facade-iterator-category" id="id30" name="id30"><tt class="literal"><span class="pre">iterator_facade</span></tt> iterator category</a></li>
<li><a class="reference" href="#iterator-facade-operations" id="id32" name="id32"><tt class="literal"><span class="pre">iterator_facade</span></tt> operations</a></li> <li><a class="reference" href="#iterator-facade-operations" id="id31" name="id31"><tt class="literal"><span class="pre">iterator_facade</span></tt> operations</a></li>
</ul> </ul>
</li> </li>
<li><a class="reference" href="#iterator-adaptor-lib-iterator-adaptor" id="id32" name="id32">Iterator adaptor [lib.iterator.adaptor]</a><ul>
<li><a class="reference" href="#iterator-adaptor-base-class-parameters" id="id33" name="id33"><tt class="literal"><span class="pre">iterator_adaptor</span></tt> base class parameters</a></li>
<li><a class="reference" href="#iterator-adaptor-usage" id="id34" name="id34"><tt class="literal"><span class="pre">iterator_adaptor</span></tt> usage</a></li>
<li><a class="reference" href="#iterator-adaptor-public-operations" id="id35" name="id35"><tt class="literal"><span class="pre">iterator_adaptor</span></tt> public operations</a></li>
<li><a class="reference" href="#iterator-adaptor-protected-member-functions" id="id36" name="id36"><tt class="literal"><span class="pre">iterator_adaptor</span></tt> protected member functions</a></li>
<li><a class="reference" href="#iterator-adaptor-private-member-functions" id="id37" name="id37"><tt class="literal"><span class="pre">iterator_adaptor</span></tt> private member functions</a></li>
</ul> </ul>
</li> </li>
<li><a class="reference" href="#iterator-adaptor-lib-iterator-adaptor" id="id33" name="id33">Iterator adaptor [lib.iterator.adaptor]</a><ul> <li><a class="reference" href="#specialized-adaptors-lib-iterator-special-adaptors" id="id38" name="id38">Specialized adaptors [lib.iterator.special.adaptors]</a><ul>
<li><a class="reference" href="#class-template-iterator-adaptor" id="id34" name="id34">Class template <tt class="literal"><span class="pre">iterator_adaptor</span></tt></a></li> <li><a class="reference" href="#indirect-iterator" id="id39" name="id39">Indirect iterator</a><ul>
<li><a class="reference" href="#iterator-adaptor-base-class-parameters" id="id35" name="id35"><tt class="literal"><span class="pre">iterator_adaptor</span></tt> base class parameters</a></li> <li><a class="reference" href="#class-template-indirect-iterator" id="id40" name="id40">Class template <tt class="literal"><span class="pre">indirect_iterator</span></tt></a></li>
<li><a class="reference" href="#iterator-adaptor-usage" id="id36" name="id36"><tt class="literal"><span class="pre">iterator_adaptor</span></tt> usage</a></li> <li><a class="reference" href="#indirect-iterator-requirements" id="id41" name="id41"><tt class="literal"><span class="pre">indirect_iterator</span></tt> requirements</a></li>
<li><a class="reference" href="#iterator-adaptor-public-operations" id="id37" name="id37"><tt class="literal"><span class="pre">iterator_adaptor</span></tt> public operations</a></li> <li><a class="reference" href="#indirect-iterator-models" id="id42" name="id42"><tt class="literal"><span class="pre">indirect_iterator</span></tt> models</a></li>
<li><a class="reference" href="#iterator-adaptor-protected-member-functions" id="id38" name="id38"><tt class="literal"><span class="pre">iterator_adaptor</span></tt> protected member functions</a></li> <li><a class="reference" href="#indirect-iterator-operations" id="id43" name="id43"><tt class="literal"><span class="pre">indirect_iterator</span></tt> operations</a></li>
<li><a class="reference" href="#iterator-adaptor-private-member-functions" id="id39" name="id39"><tt class="literal"><span class="pre">iterator_adaptor</span></tt> private member functions</a></li>
</ul> </ul>
</li> </li>
<li><a class="reference" href="#specialized-adaptors-lib-iterator-special-adaptors" id="id40" name="id40">Specialized adaptors [lib.iterator.special.adaptors]</a><ul> <li><a class="reference" href="#reverse-iterator" id="id44" name="id44">Reverse iterator</a><ul>
<li><a class="reference" href="#indirect-iterator" id="id41" name="id41">Indirect iterator</a><ul> <li><a class="reference" href="#class-template-reverse-iterator" id="id45" name="id45">Class template <tt class="literal"><span class="pre">reverse_iterator</span></tt></a></li>
<li><a class="reference" href="#class-template-indirect-iterator" id="id42" name="id42">Class template <tt class="literal"><span class="pre">indirect_iterator</span></tt></a></li> <li><a class="reference" href="#reverse-iterator-requirements" id="id46" name="id46"><tt class="literal"><span class="pre">reverse_iterator</span></tt> requirements</a></li>
<li><a class="reference" href="#indirect-iterator-requirements" id="id43" name="id43"><tt class="literal"><span class="pre">indirect_iterator</span></tt> requirements</a></li> <li><a class="reference" href="#reverse-iterator-models" id="id47" name="id47"><tt class="literal"><span class="pre">reverse_iterator</span></tt> models</a></li>
<li><a class="reference" href="#indirect-iterator-models" id="id44" name="id44"><tt class="literal"><span class="pre">indirect_iterator</span></tt> models</a></li> <li><a class="reference" href="#reverse-iterator-operations" id="id48" name="id48"><tt class="literal"><span class="pre">reverse_iterator</span></tt> operations</a></li>
<li><a class="reference" href="#indirect-iterator-operations" id="id45" name="id45"><tt class="literal"><span class="pre">indirect_iterator</span></tt> operations</a></li>
</ul> </ul>
</li> </li>
<li><a class="reference" href="#reverse-iterator" id="id46" name="id46">Reverse iterator</a><ul> <li><a class="reference" href="#transform-iterator" id="id49" name="id49">Transform iterator</a><ul>
<li><a class="reference" href="#class-template-reverse-iterator" id="id47" name="id47">Class template <tt class="literal"><span class="pre">reverse_iterator</span></tt></a></li> <li><a class="reference" href="#class-template-transform-iterator" id="id50" name="id50">Class template <tt class="literal"><span class="pre">transform_iterator</span></tt></a></li>
<li><a class="reference" href="#reverse-iterator-requirements" id="id48" name="id48"><tt class="literal"><span class="pre">reverse_iterator</span></tt> requirements</a></li> <li><a class="reference" href="#transform-iterator-requirements" id="id51" name="id51"><tt class="literal"><span class="pre">transform_iterator</span></tt> requirements</a></li>
<li><a class="reference" href="#reverse-iterator-models" id="id49" name="id49"><tt class="literal"><span class="pre">reverse_iterator</span></tt> models</a></li> <li><a class="reference" href="#transform-iterator-models" id="id52" name="id52"><tt class="literal"><span class="pre">transform_iterator</span></tt> models</a></li>
<li><a class="reference" href="#reverse-iterator-operations" id="id50" name="id50"><tt class="literal"><span class="pre">reverse_iterator</span></tt> operations</a></li> <li><a class="reference" href="#transform-iterator-operations" id="id53" name="id53"><tt class="literal"><span class="pre">transform_iterator</span></tt> operations</a></li>
</ul> </ul>
</li> </li>
<li><a class="reference" href="#transform-iterator" id="id51" name="id51">Transform iterator</a><ul> <li><a class="reference" href="#filter-iterator" id="id54" name="id54">Filter iterator</a><ul>
<li><a class="reference" href="#class-template-transform-iterator" id="id52" name="id52">Class template <tt class="literal"><span class="pre">transform_iterator</span></tt></a></li> <li><a class="reference" href="#class-template-filter-iterator" id="id55" name="id55">Class template <tt class="literal"><span class="pre">filter_iterator</span></tt></a></li>
<li><a class="reference" href="#transform-iterator-requirements" id="id53" name="id53"><tt class="literal"><span class="pre">transform_iterator</span></tt> requirements</a></li> <li><a class="reference" href="#filter-iterator-requirements" id="id56" name="id56"><tt class="literal"><span class="pre">filter_iterator</span></tt> requirements</a></li>
<li><a class="reference" href="#transform-iterator-models" id="id54" name="id54"><tt class="literal"><span class="pre">transform_iterator</span></tt> models</a></li> <li><a class="reference" href="#filter-iterator-models" id="id57" name="id57"><tt class="literal"><span class="pre">filter_iterator</span></tt> models</a></li>
<li><a class="reference" href="#transform-iterator-operations" id="id55" name="id55"><tt class="literal"><span class="pre">transform_iterator</span></tt> operations</a></li> <li><a class="reference" href="#filter-iterator-operations" id="id58" name="id58"><tt class="literal"><span class="pre">filter_iterator</span></tt> operations</a></li>
</ul> </ul>
</li> </li>
<li><a class="reference" href="#filter-iterator" id="id56" name="id56">Filter iterator</a><ul> <li><a class="reference" href="#counting-iterator" id="id59" name="id59">Counting iterator</a><ul>
<li><a class="reference" href="#class-template-filter-iterator" id="id57" name="id57">Class template <tt class="literal"><span class="pre">filter_iterator</span></tt></a></li> <li><a class="reference" href="#class-template-counting-iterator" id="id60" name="id60">Class template <tt class="literal"><span class="pre">counting_iterator</span></tt></a></li>
<li><a class="reference" href="#filter-iterator-requirements" id="id58" name="id58"><tt class="literal"><span class="pre">filter_iterator</span></tt> requirements</a></li> <li><a class="reference" href="#counting-iterator-requirements" id="id61" name="id61"><tt class="literal"><span class="pre">counting_iterator</span></tt> requirements</a></li>
<li><a class="reference" href="#filter-iterator-models" id="id59" name="id59"><tt class="literal"><span class="pre">filter_iterator</span></tt> models</a></li> <li><a class="reference" href="#counting-iterator-models" id="id62" name="id62"><tt class="literal"><span class="pre">counting_iterator</span></tt> models</a></li>
<li><a class="reference" href="#filter-iterator-operations" id="id60" name="id60"><tt class="literal"><span class="pre">filter_iterator</span></tt> operations</a></li> <li><a class="reference" href="#counting-iterator-operations" id="id63" name="id63"><tt class="literal"><span class="pre">counting_iterator</span></tt> operations</a></li>
</ul> </ul>
</li> </li>
<li><a class="reference" href="#counting-iterator" id="id61" name="id61">Counting iterator</a><ul> <li><a class="reference" href="#function-output-iterator" id="id64" name="id64">Function output iterator</a><ul>
<li><a class="reference" href="#class-template-counting-iterator" id="id62" name="id62">Class template <tt class="literal"><span class="pre">counting_iterator</span></tt></a></li> <li><a class="reference" href="#class-template-function-output-iterator" id="id65" name="id65">Class template <tt class="literal"><span class="pre">function_output_iterator</span></tt></a></li>
<li><a class="reference" href="#counting-iterator-requirements" id="id63" name="id63"><tt class="literal"><span class="pre">counting_iterator</span></tt> requirements</a></li> <li><a class="reference" href="#function-output-iterator-requirements" id="id66" name="id66"><tt class="literal"><span class="pre">function_output_iterator</span></tt> requirements</a></li>
<li><a class="reference" href="#counting-iterator-models" id="id64" name="id64"><tt class="literal"><span class="pre">counting_iterator</span></tt> models</a></li> <li><a class="reference" href="#function-output-iterator-operations" id="id67" name="id67"><tt class="literal"><span class="pre">function_output_iterator</span></tt> operations</a></li>
<li><a class="reference" href="#counting-iterator-operations" id="id65" name="id65"><tt class="literal"><span class="pre">counting_iterator</span></tt> operations</a></li> <li><a class="reference" href="#function-output-iterator-output-proxy-operations" id="id68" name="id68"><tt class="literal"><span class="pre">function_output_iterator::output_proxy</span></tt> operations</a></li>
</ul>
</li>
<li><a class="reference" href="#function-output-iterator" id="id66" name="id66">Function output iterator</a><ul>
<li><a class="reference" href="#class-template-function-output-iterator" id="id67" name="id67">Class template <tt class="literal"><span class="pre">function_output_iterator</span></tt></a></li>
<li><a class="reference" href="#function-output-iterator-requirements" id="id68" name="id68"><tt class="literal"><span class="pre">function_output_iterator</span></tt> requirements</a></li>
<li><a class="reference" href="#function-output-iterator-operations" id="id69" name="id69"><tt class="literal"><span class="pre">function_output_iterator</span></tt> operations</a></li>
<li><a class="reference" href="#function-output-iterator-output-proxy-operations" id="id70" name="id70"><tt class="literal"><span class="pre">function_output_iterator::output_proxy</span></tt> operations</a></li>
</ul> </ul>
</li> </li>
</ul> </ul>
@ -328,7 +324,7 @@ of the derived iterator type. These member functions are described
briefly below and in more detail in the iterator facade briefly below and in more detail in the iterator facade
requirements.</p> requirements.</p>
<blockquote> <blockquote>
<table border class="table"> <table class="table" frame="border" rules="all">
<colgroup> <colgroup>
<col width="44%" /> <col width="44%" />
<col width="56%" /> <col width="56%" />
@ -598,8 +594,6 @@ class function_output_iterator;
<p><tt class="literal"><span class="pre">iterator_facade</span></tt> is a base class template that implements the <p><tt class="literal"><span class="pre">iterator_facade</span></tt> is a base class template that implements the
interface of standard iterators in terms of a few core functions interface of standard iterators in terms of a few core functions
and associated types, to be supplied by a derived iterator class.</p> and associated types, to be supplied by a derived iterator class.</p>
<div class="section" id="class-template-iterator-facade">
<h3><a class="toc-backref" href="#id28" name="class-template-iterator-facade">Class template <tt class="literal"><span class="pre">iterator_facade</span></tt></a></h3>
<!-- Version 1.3 of this ReStructuredText document corresponds to <!-- Version 1.3 of this ReStructuredText document corresponds to
n1530_, the paper accepted by the LWG for TR1. --> n1530_, the paper accepted by the LWG for TR1. -->
<!-- Copyright David Abrahams, Jeremy Siek, and Thomas Witt 2003. All <!-- Copyright David Abrahams, Jeremy Siek, and Thomas Witt 2003. All
@ -711,7 +705,7 @@ struct enable_if_interoperable
{}; {};
</pre> </pre>
<div class="section" id="iterator-facade-usage"> <div class="section" id="iterator-facade-usage">
<h4><a class="toc-backref" href="#id29" name="iterator-facade-usage"><tt class="literal"><span class="pre">iterator_facade</span></tt> usage</a></h4> <h3><a class="toc-backref" href="#id28" name="iterator-facade-usage"><tt class="literal"><span class="pre">iterator_facade</span></tt> usage</a></h3>
<p>The following table describes the typical valid expressions on <p>The following table describes the typical valid expressions on
<tt class="literal"><span class="pre">iterator_facade</span></tt>'s <tt class="literal"><span class="pre">Derived</span></tt> parameter, depending on the <tt class="literal"><span class="pre">iterator_facade</span></tt>'s <tt class="literal"><span class="pre">Derived</span></tt> parameter, depending on the
iterator concept(s) it will model. The operations in the first iterator concept(s) it will model. The operations in the first
@ -724,8 +718,8 @@ object of a single pass iterator type interoperable with <tt class="literal"><sp
is a constant object of a random access traversal iterator type is a constant object of a random access traversal iterator type
interoperable with <tt class="literal"><span class="pre">X</span></tt>.</p> interoperable with <tt class="literal"><span class="pre">X</span></tt>.</p>
<a class="target" id="core-operations" name="core-operations"></a><div class="section" id="iterator-facade-core-operations"> <a class="target" id="core-operations" name="core-operations"></a><div class="section" id="iterator-facade-core-operations">
<h5><a class="toc-backref" href="#id30" name="iterator-facade-core-operations"><tt class="literal"><span class="pre">iterator_facade</span></tt> Core Operations</a></h5> <h4><a class="toc-backref" href="#id29" name="iterator-facade-core-operations"><tt class="literal"><span class="pre">iterator_facade</span></tt> Core Operations</a></h4>
<table border class="table"> <table class="table" frame="border" rules="all">
<colgroup> <colgroup>
<col width="19%" /> <col width="19%" />
<col width="21%" /> <col width="21%" />
@ -792,7 +786,7 @@ Iterator</td>
<a class="target" id="facade-iterator-category" name="facade-iterator-category"></a></div> <a class="target" id="facade-iterator-category" name="facade-iterator-category"></a></div>
</div> </div>
<div class="section" id="iterator-facade-iterator-category"> <div class="section" id="iterator-facade-iterator-category">
<h4><a class="toc-backref" href="#id31" name="iterator-facade-iterator-category"><tt class="literal"><span class="pre">iterator_facade</span></tt> iterator category</a></h4> <h3><a class="toc-backref" href="#id30" name="iterator-facade-iterator-category"><tt class="literal"><span class="pre">iterator_facade</span></tt> iterator category</a></h3>
<p>The <tt class="literal"><span class="pre">iterator_category</span></tt> member of <tt class="literal"><span class="pre">iterator_facade&lt;X,V,R,C,D&gt;</span></tt> <p>The <tt class="literal"><span class="pre">iterator_category</span></tt> member of <tt class="literal"><span class="pre">iterator_facade&lt;X,V,R,C,D&gt;</span></tt>
is a type which satisfies the following conditions:</p> is a type which satisfies the following conditions:</p>
<blockquote> <blockquote>
@ -845,7 +839,7 @@ convertible, and not to any more-derived traversal tag type.</p>
</blockquote> </blockquote>
</div> </div>
<div class="section" id="iterator-facade-operations"> <div class="section" id="iterator-facade-operations">
<h4><a class="toc-backref" href="#id32" name="iterator-facade-operations"><tt class="literal"><span class="pre">iterator_facade</span></tt> operations</a></h4> <h3><a class="toc-backref" href="#id31" name="iterator-facade-operations"><tt class="literal"><span class="pre">iterator_facade</span></tt> operations</a></h3>
<p>The operations in this section are described in terms of operations on <p>The operations in this section are described in terms of operations on
the core interface of <tt class="literal"><span class="pre">Derived</span></tt> which may be inaccessible the core interface of <tt class="literal"><span class="pre">Derived</span></tt> which may be inaccessible
(i.e. private). The implementation should access these operations (i.e. private). The implementation should access these operations
@ -986,9 +980,8 @@ return tmp -= n;
</table> </table>
</div> </div>
</div> </div>
</div>
<div class="section" id="iterator-adaptor-lib-iterator-adaptor"> <div class="section" id="iterator-adaptor-lib-iterator-adaptor">
<h2><a class="toc-backref" href="#id33" name="iterator-adaptor-lib-iterator-adaptor">Iterator adaptor [lib.iterator.adaptor]</a></h2> <h2><a class="toc-backref" href="#id32" name="iterator-adaptor-lib-iterator-adaptor">Iterator adaptor [lib.iterator.adaptor]</a></h2>
<!-- Version 1.1 of this ReStructuredText document corresponds to <!-- Version 1.1 of this ReStructuredText document corresponds to
n1530_, the paper accepted by the LWG. --> n1530_, the paper accepted by the LWG. -->
<!-- Copyright David Abrahams, Jeremy Siek, and Thomas Witt 2003. All <!-- Copyright David Abrahams, Jeremy Siek, and Thomas Witt 2003. All
@ -1003,8 +996,6 @@ Whether the derived class models any of the standard iterator concepts
depends on the operations supported by the <tt class="literal"><span class="pre">Base</span></tt> type and which depends on the operations supported by the <tt class="literal"><span class="pre">Base</span></tt> type and which
core interface functions of <tt class="literal"><span class="pre">iterator_facade</span></tt> are redefined in the core interface functions of <tt class="literal"><span class="pre">iterator_facade</span></tt> are redefined in the
<tt class="literal"><span class="pre">Derived</span></tt> class.</p> <tt class="literal"><span class="pre">Derived</span></tt> class.</p>
<div class="section" id="class-template-iterator-adaptor">
<h3><a class="toc-backref" href="#id34" name="class-template-iterator-adaptor">Class template <tt class="literal"><span class="pre">iterator_adaptor</span></tt></a></h3>
<!-- Version 1.4 of this ReStructuredText document corresponds to <!-- Version 1.4 of this ReStructuredText document corresponds to
n1530_, the paper accepted by the LWG for TR1. --> n1530_, the paper accepted by the LWG for TR1. -->
<!-- Copyright David Abrahams, Jeremy Siek, and Thomas Witt 2003. All <!-- Copyright David Abrahams, Jeremy Siek, and Thomas Witt 2003. All
@ -1051,9 +1042,8 @@ class iterator_adaptor
Base m_iterator; // exposition only Base m_iterator; // exposition only
}; };
</pre> </pre>
<a class="target" id="base-parameters" name="base-parameters"></a></div> <a class="target" id="base-parameters" name="base-parameters"></a><div class="section" id="iterator-adaptor-base-class-parameters">
<div class="section" id="iterator-adaptor-base-class-parameters"> <h3><a class="toc-backref" href="#id33" name="iterator-adaptor-base-class-parameters"><tt class="literal"><span class="pre">iterator_adaptor</span></tt> base class parameters</a></h3>
<h3><a class="toc-backref" href="#id35" name="iterator-adaptor-base-class-parameters"><tt class="literal"><span class="pre">iterator_adaptor</span></tt> base class parameters</a></h3>
<p>The <em>V</em>, <em>C</em>, <em>R</em>, and <em>D</em> parameters of the <tt class="literal"><span class="pre">iterator_facade</span></tt> <p>The <em>V</em>, <em>C</em>, <em>R</em>, and <em>D</em> parameters of the <tt class="literal"><span class="pre">iterator_facade</span></tt>
used as a base class in the summary of <tt class="literal"><span class="pre">iterator_adaptor</span></tt> used as a base class in the summary of <tt class="literal"><span class="pre">iterator_adaptor</span></tt>
above are defined as follows:</p> above are defined as follows:</p>
@ -1083,7 +1073,7 @@ above are defined as follows:</p>
</pre> </pre>
</div> </div>
<div class="section" id="iterator-adaptor-usage"> <div class="section" id="iterator-adaptor-usage">
<h3><a class="toc-backref" href="#id36" name="iterator-adaptor-usage"><tt class="literal"><span class="pre">iterator_adaptor</span></tt> usage</a></h3> <h3><a class="toc-backref" href="#id34" name="iterator-adaptor-usage"><tt class="literal"><span class="pre">iterator_adaptor</span></tt> usage</a></h3>
<p>The <tt class="literal"><span class="pre">Derived</span></tt> template parameter must be a publicly derived from <p>The <tt class="literal"><span class="pre">Derived</span></tt> template parameter must be a publicly derived from
<tt class="literal"><span class="pre">iterator_adaptor</span></tt>. In order for <tt class="literal"><span class="pre">Derived</span></tt> to model the <tt class="literal"><span class="pre">iterator_adaptor</span></tt>. In order for <tt class="literal"><span class="pre">Derived</span></tt> to model the
iterator concepts corresponding to iterator concepts corresponding to
@ -1095,7 +1085,7 @@ member functions of <tt class="literal"><span class="pre">iterator_adaptor</span
in those concepts' requirements.</p> in those concepts' requirements.</p>
</div> </div>
<div class="section" id="iterator-adaptor-public-operations"> <div class="section" id="iterator-adaptor-public-operations">
<h3><a class="toc-backref" href="#id37" name="iterator-adaptor-public-operations"><tt class="literal"><span class="pre">iterator_adaptor</span></tt> public operations</a></h3> <h3><a class="toc-backref" href="#id35" name="iterator-adaptor-public-operations"><tt class="literal"><span class="pre">iterator_adaptor</span></tt> public operations</a></h3>
<p><tt class="literal"><span class="pre">iterator_adaptor();</span></tt></p> <p><tt class="literal"><span class="pre">iterator_adaptor();</span></tt></p>
<table class="field-list" frame="void" rules="none"> <table class="field-list" frame="void" rules="none">
<col class="field-name" /> <col class="field-name" />
@ -1129,7 +1119,7 @@ in those concepts' requirements.</p>
</table> </table>
</div> </div>
<div class="section" id="iterator-adaptor-protected-member-functions"> <div class="section" id="iterator-adaptor-protected-member-functions">
<h3><a class="toc-backref" href="#id38" name="iterator-adaptor-protected-member-functions"><tt class="literal"><span class="pre">iterator_adaptor</span></tt> protected member functions</a></h3> <h3><a class="toc-backref" href="#id36" name="iterator-adaptor-protected-member-functions"><tt class="literal"><span class="pre">iterator_adaptor</span></tt> protected member functions</a></h3>
<p><tt class="literal"><span class="pre">Base</span> <span class="pre">const&amp;</span> <span class="pre">base_reference()</span> <span class="pre">const;</span></tt></p> <p><tt class="literal"><span class="pre">Base</span> <span class="pre">const&amp;</span> <span class="pre">base_reference()</span> <span class="pre">const;</span></tt></p>
<table class="field-list" frame="void" rules="none"> <table class="field-list" frame="void" rules="none">
<col class="field-name" /> <col class="field-name" />
@ -1150,7 +1140,7 @@ in those concepts' requirements.</p>
</table> </table>
</div> </div>
<div class="section" id="iterator-adaptor-private-member-functions"> <div class="section" id="iterator-adaptor-private-member-functions">
<h3><a class="toc-backref" href="#id39" name="iterator-adaptor-private-member-functions"><tt class="literal"><span class="pre">iterator_adaptor</span></tt> private member functions</a></h3> <h3><a class="toc-backref" href="#id37" name="iterator-adaptor-private-member-functions"><tt class="literal"><span class="pre">iterator_adaptor</span></tt> private member functions</a></h3>
<p><tt class="literal"><span class="pre">typename</span> <span class="pre">iterator_adaptor::reference</span> <span class="pre">dereference()</span> <span class="pre">const;</span></tt></p> <p><tt class="literal"><span class="pre">typename</span> <span class="pre">iterator_adaptor::reference</span> <span class="pre">dereference()</span> <span class="pre">const;</span></tt></p>
<table class="field-list" frame="void" rules="none"> <table class="field-list" frame="void" rules="none">
<col class="field-name" /> <col class="field-name" />
@ -1219,7 +1209,7 @@ typename iterator_adaptor::difference_type distance_to(
</div> </div>
</div> </div>
<div class="section" id="specialized-adaptors-lib-iterator-special-adaptors"> <div class="section" id="specialized-adaptors-lib-iterator-special-adaptors">
<h2><a class="toc-backref" href="#id40" name="specialized-adaptors-lib-iterator-special-adaptors">Specialized adaptors [lib.iterator.special.adaptors]</a></h2> <h2><a class="toc-backref" href="#id38" name="specialized-adaptors-lib-iterator-special-adaptors">Specialized adaptors [lib.iterator.special.adaptors]</a></h2>
<p>The <tt class="literal"><span class="pre">enable_if_convertible&lt;X,Y&gt;::type</span></tt> expression used in <p>The <tt class="literal"><span class="pre">enable_if_convertible&lt;X,Y&gt;::type</span></tt> expression used in
this section is for exposition purposes. The converting constructors this section is for exposition purposes. The converting constructors
for specialized adaptors should be only be in an overload set provided for specialized adaptors should be only be in an overload set provided
@ -1248,7 +1238,7 @@ take the constructor out of the overload set when the types are not
implicitly convertible. implicitly convertible.
]</p> ]</p>
<div class="section" id="indirect-iterator"> <div class="section" id="indirect-iterator">
<h3><a class="toc-backref" href="#id41" name="indirect-iterator">Indirect iterator</a></h3> <h3><a class="toc-backref" href="#id39" name="indirect-iterator">Indirect iterator</a></h3>
<p>The indirect iterator adapts an iterator by applying an <em>extra</em> <p>The indirect iterator adapts an iterator by applying an <em>extra</em>
dereference inside of <tt class="literal"><span class="pre">operator*()</span></tt>. For example, this iterator dereference inside of <tt class="literal"><span class="pre">operator*()</span></tt>. For example, this iterator
adaptor makes it possible to view a container of pointers adaptor makes it possible to view a container of pointers
@ -1257,7 +1247,7 @@ adaptor makes it possible to view a container of pointers
<!-- At some point we should add the capability to handle <!-- At some point we should add the capability to handle
iterators over smart pointers, which the impl handles. -JGS --> iterators over smart pointers, which the impl handles. -JGS -->
<div class="section" id="class-template-indirect-iterator"> <div class="section" id="class-template-indirect-iterator">
<h4><a class="toc-backref" href="#id42" name="class-template-indirect-iterator">Class template <tt class="literal"><span class="pre">indirect_iterator</span></tt></a></h4> <h4><a class="toc-backref" href="#id40" name="class-template-indirect-iterator">Class template <tt class="literal"><span class="pre">indirect_iterator</span></tt></a></h4>
<pre class="literal-block"> <pre class="literal-block">
template &lt; template &lt;
class Iterator class Iterator
@ -1288,6 +1278,10 @@ class indirect_iterator
&gt; const&amp; y &gt; const&amp; y
, typename enable_if_convertible&lt;Iterator2, Iterator&gt;::type* = 0 // exposition , typename enable_if_convertible&lt;Iterator2, Iterator&gt;::type* = 0 // exposition
); );
Iterator base() const;
private:
Iterator m_iterator; // exposition
}; };
</pre> </pre>
<p>The member types of <tt class="literal"><span class="pre">indirect_iterator</span></tt> are defined according to the <p>The member types of <tt class="literal"><span class="pre">indirect_iterator</span></tt> are defined according to the
@ -1322,7 +1316,7 @@ satisfies the requirements of the concepts modeled by the indirect
iterator as specified in the models section.</p> iterator as specified in the models section.</p>
</div> </div>
<div class="section" id="indirect-iterator-requirements"> <div class="section" id="indirect-iterator-requirements">
<h4><a class="toc-backref" href="#id43" name="indirect-iterator-requirements"><tt class="literal"><span class="pre">indirect_iterator</span></tt> requirements</a></h4> <h4><a class="toc-backref" href="#id41" name="indirect-iterator-requirements"><tt class="literal"><span class="pre">indirect_iterator</span></tt> requirements</a></h4>
<p>The <tt class="literal"><span class="pre">Iterator</span></tt> argument shall meet the requirements of Readable <p>The <tt class="literal"><span class="pre">Iterator</span></tt> argument shall meet the requirements of Readable
Iterator. The <tt class="literal"><span class="pre">CategoryOrTraversal</span></tt> argument shall be one of the Iterator. The <tt class="literal"><span class="pre">CategoryOrTraversal</span></tt> argument shall be one of the
standard iterator tags or <tt class="literal"><span class="pre">use_default</span></tt>. If <tt class="literal"><span class="pre">CategoryOrTraversal</span></tt> standard iterator tags or <tt class="literal"><span class="pre">use_default</span></tt>. If <tt class="literal"><span class="pre">CategoryOrTraversal</span></tt>
@ -1338,7 +1332,7 @@ is not <tt class="literal"><span class="pre">use_default</span></tt>, as implied
default for the <tt class="literal"><span class="pre">value_type</span></tt> member.</p> default for the <tt class="literal"><span class="pre">value_type</span></tt> member.</p>
</div> </div>
<div class="section" id="indirect-iterator-models"> <div class="section" id="indirect-iterator-models">
<h4><a class="toc-backref" href="#id44" name="indirect-iterator-models"><tt class="literal"><span class="pre">indirect_iterator</span></tt> models</a></h4> <h4><a class="toc-backref" href="#id42" name="indirect-iterator-models"><tt class="literal"><span class="pre">indirect_iterator</span></tt> models</a></h4>
<p>If <tt class="literal"><span class="pre">CategoryOrTraversal</span></tt> is a standard iterator tag, <p>If <tt class="literal"><span class="pre">CategoryOrTraversal</span></tt> is a standard iterator tag,
<tt class="literal"><span class="pre">indirect_iterator</span></tt> is a model of the iterator concept corresponding <tt class="literal"><span class="pre">indirect_iterator</span></tt> is a model of the iterator concept corresponding
to the tag, otherwise <tt class="literal"><span class="pre">indirect_iterator</span></tt> satisfies the requirements to the tag, otherwise <tt class="literal"><span class="pre">indirect_iterator</span></tt> satisfies the requirements
@ -1352,7 +1346,7 @@ the <tt class="literal"><span class="pre">Iterator</span></tt> argument.</p>
<tt class="literal"><span class="pre">indirect_iterator</span></tt> models Lvalue Iterator.</p> <tt class="literal"><span class="pre">indirect_iterator</span></tt> models Lvalue Iterator.</p>
</div> </div>
<div class="section" id="indirect-iterator-operations"> <div class="section" id="indirect-iterator-operations">
<h4><a class="toc-backref" href="#id45" name="indirect-iterator-operations"><tt class="literal"><span class="pre">indirect_iterator</span></tt> operations</a></h4> <h4><a class="toc-backref" href="#id43" name="indirect-iterator-operations"><tt class="literal"><span class="pre">indirect_iterator</span></tt> operations</a></h4>
<p><tt class="literal"><span class="pre">indirect_iterator();</span></tt></p> <p><tt class="literal"><span class="pre">indirect_iterator();</span></tt></p>
<table class="field-list" frame="void" rules="none"> <table class="field-list" frame="void" rules="none">
<col class="field-name" /> <col class="field-name" />
@ -1361,7 +1355,7 @@ the <tt class="literal"><span class="pre">Iterator</span></tt> argument.</p>
<tr class="field"><th class="field-name">Requires:</th><td class="field-body"><tt class="literal"><span class="pre">Iterator</span></tt> must be Default Constructible.</td> <tr class="field"><th class="field-name">Requires:</th><td class="field-body"><tt class="literal"><span class="pre">Iterator</span></tt> must be Default Constructible.</td>
</tr> </tr>
<tr class="field"><th class="field-name">Returns:</th><td class="field-body">An instance of <tt class="literal"><span class="pre">indirect_iterator</span></tt> with <tr class="field"><th class="field-name">Returns:</th><td class="field-body">An instance of <tt class="literal"><span class="pre">indirect_iterator</span></tt> with
a default-constructed <tt class="literal"><span class="pre">iterator_adaptor</span></tt> subobject.</td> a default-constructed <tt class="literal"><span class="pre">m_iterator</span></tt>.</td>
</tr> </tr>
</tbody> </tbody>
</table> </table>
@ -1371,7 +1365,7 @@ a default-constructed <tt class="literal"><span class="pre">iterator_adaptor</sp
<col class="field-body" /> <col class="field-body" />
<tbody valign="top"> <tbody valign="top">
<tr class="field"><th class="field-name">Returns:</th><td class="field-body">An instance of <tt class="literal"><span class="pre">indirect_iterator</span></tt> with <tr class="field"><th class="field-name">Returns:</th><td class="field-body">An instance of <tt class="literal"><span class="pre">indirect_iterator</span></tt> with
the <tt class="literal"><span class="pre">iterator_adaptor</span></tt> subobject copy constructed from <tt class="literal"><span class="pre">x</span></tt>.</td> <tt class="literal"><span class="pre">m_iterator</span></tt> copy constructed from <tt class="literal"><span class="pre">x</span></tt>.</td>
</tr> </tr>
</tbody> </tbody>
</table> </table>
@ -1394,20 +1388,29 @@ indirect_iterator(
<tr class="field"><th class="field-name">Requires:</th><td class="field-body"><tt class="literal"><span class="pre">Iterator2</span></tt> is implicitly convertible to <tt class="literal"><span class="pre">Iterator</span></tt>.</td> <tr class="field"><th class="field-name">Requires:</th><td class="field-body"><tt class="literal"><span class="pre">Iterator2</span></tt> is implicitly convertible to <tt class="literal"><span class="pre">Iterator</span></tt>.</td>
</tr> </tr>
<tr class="field"><th class="field-name">Returns:</th><td class="field-body">An instance of <tt class="literal"><span class="pre">indirect_iterator</span></tt> whose <tr class="field"><th class="field-name">Returns:</th><td class="field-body">An instance of <tt class="literal"><span class="pre">indirect_iterator</span></tt> whose
<tt class="literal"><span class="pre">iterator_adaptor</span></tt> subobject is constructed from <tt class="literal"><span class="pre">y.base()</span></tt>.</td> <tt class="literal"><span class="pre">m_iterator</span></tt> subobject is constructed from <tt class="literal"><span class="pre">y.base()</span></tt>.</td>
</tr>
</tbody>
</table>
<p><tt class="literal"><span class="pre">Iterator</span> <span class="pre">base()</span> <span class="pre">const;</span></tt></p>
<table class="field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field"><th class="field-name">Returns:</th><td class="field-body"><tt class="literal"><span class="pre">m_iterator</span></tt></td>
</tr> </tr>
</tbody> </tbody>
</table> </table>
</div> </div>
</div> </div>
<div class="section" id="reverse-iterator"> <div class="section" id="reverse-iterator">
<h3><a class="toc-backref" href="#id46" name="reverse-iterator">Reverse iterator</a></h3> <h3><a class="toc-backref" href="#id44" name="reverse-iterator">Reverse iterator</a></h3>
<!-- I think we'd better strike the old reverse_iterator text from the standard, eh? --> <!-- I think we'd better strike the old reverse_iterator text from the standard, eh? -->
<p>The reverse iterator adaptor flips the direction of a base iterator's <p>The reverse iterator adaptor flips the direction of a base iterator's
motion. Invoking <tt class="literal"><span class="pre">operator++()</span></tt> moves the base iterator backward and motion. Invoking <tt class="literal"><span class="pre">operator++()</span></tt> moves the base iterator backward and
invoking <tt class="literal"><span class="pre">operator--()</span></tt> moves the base iterator forward.</p> invoking <tt class="literal"><span class="pre">operator--()</span></tt> moves the base iterator forward.</p>
<div class="section" id="class-template-reverse-iterator"> <div class="section" id="class-template-reverse-iterator">
<h4><a class="toc-backref" href="#id47" name="class-template-reverse-iterator">Class template <tt class="literal"><span class="pre">reverse_iterator</span></tt></a></h4> <h4><a class="toc-backref" href="#id45" name="class-template-reverse-iterator">Class template <tt class="literal"><span class="pre">reverse_iterator</span></tt></a></h4>
<pre class="literal-block"> <pre class="literal-block">
template &lt;class Iterator&gt; template &lt;class Iterator&gt;
class reverse_iterator class reverse_iterator
@ -1421,27 +1424,28 @@ public:
reverse_iterator&lt;OtherIterator&gt; const&amp; r reverse_iterator&lt;OtherIterator&gt; const&amp; r
, typename enable_if_convertible&lt;OtherIterator, Iterator&gt;::type* = 0 // exposition , typename enable_if_convertible&lt;OtherIterator, Iterator&gt;::type* = 0 // exposition
); );
Iterator base() const;
reference operator*() const; reference operator*() const;
reverse_iterator&amp; operator++(); reverse_iterator&amp; operator++();
private: private:
Iterator current; // exposition Iterator m_iterator; // exposition
}; };
</pre> </pre>
</div> </div>
<div class="section" id="reverse-iterator-requirements"> <div class="section" id="reverse-iterator-requirements">
<h4><a class="toc-backref" href="#id48" name="reverse-iterator-requirements"><tt class="literal"><span class="pre">reverse_iterator</span></tt> requirements</a></h4> <h4><a class="toc-backref" href="#id46" name="reverse-iterator-requirements"><tt class="literal"><span class="pre">reverse_iterator</span></tt> requirements</a></h4>
<p>The base <tt class="literal"><span class="pre">Iterator</span></tt> must be a model of Bidirectional Traversal <p>The base <tt class="literal"><span class="pre">Iterator</span></tt> must be a model of Bidirectional Traversal
Iterator and Readable Iterator.</p> Iterator and Readable Iterator.</p>
</div> </div>
<div class="section" id="reverse-iterator-models"> <div class="section" id="reverse-iterator-models">
<h4><a class="toc-backref" href="#id49" name="reverse-iterator-models"><tt class="literal"><span class="pre">reverse_iterator</span></tt> models</a></h4> <h4><a class="toc-backref" href="#id47" name="reverse-iterator-models"><tt class="literal"><span class="pre">reverse_iterator</span></tt> models</a></h4>
<p><tt class="literal"><span class="pre">reverse_iterator</span></tt> models Bidirectional Traversal Iterator and <p><tt class="literal"><span class="pre">reverse_iterator</span></tt> models Bidirectional Traversal Iterator and
Readable Iterator. In addition, <tt class="literal"><span class="pre">reverse_iterator</span></tt> models the same Readable Iterator. In addition, <tt class="literal"><span class="pre">reverse_iterator</span></tt> models the same
standard iterator access concepts that the <tt class="literal"><span class="pre">Iterator</span></tt> standard iterator access concepts that the <tt class="literal"><span class="pre">Iterator</span></tt>
argument models.</p> argument models.</p>
</div> </div>
<div class="section" id="reverse-iterator-operations"> <div class="section" id="reverse-iterator-operations">
<h4><a class="toc-backref" href="#id50" name="reverse-iterator-operations"><tt class="literal"><span class="pre">reverse_iterator</span></tt> operations</a></h4> <h4><a class="toc-backref" href="#id48" name="reverse-iterator-operations"><tt class="literal"><span class="pre">reverse_iterator</span></tt> operations</a></h4>
<p><tt class="literal"><span class="pre">reverse_iterator();</span></tt></p> <p><tt class="literal"><span class="pre">reverse_iterator();</span></tt></p>
<table class="field-list" frame="void" rules="none"> <table class="field-list" frame="void" rules="none">
<col class="field-name" /> <col class="field-name" />
@ -1449,7 +1453,7 @@ argument models.</p>
<tbody valign="top"> <tbody valign="top">
<tr class="field"><th class="field-name">Requires:</th><td class="field-body"><tt class="literal"><span class="pre">Iterator</span></tt> must be Default Constructible.</td> <tr class="field"><th class="field-name">Requires:</th><td class="field-body"><tt class="literal"><span class="pre">Iterator</span></tt> must be Default Constructible.</td>
</tr> </tr>
<tr class="field"><th class="field-name">Returns:</th><td class="field-body">An instance of <tt class="literal"><span class="pre">reverse_iterator</span></tt> with <tt class="literal"><span class="pre">current</span></tt> <tr class="field"><th class="field-name">Returns:</th><td class="field-body">An instance of <tt class="literal"><span class="pre">reverse_iterator</span></tt> with <tt class="literal"><span class="pre">m_iterator</span></tt>
default constructed.</td> default constructed.</td>
</tr> </tr>
</tbody> </tbody>
@ -1460,7 +1464,7 @@ default constructed.</td>
<col class="field-body" /> <col class="field-body" />
<tbody valign="top"> <tbody valign="top">
<tr class="field"><th class="field-name">Returns:</th><td class="field-body">An instance of <tt class="literal"><span class="pre">reverse_iterator</span></tt> with a <tr class="field"><th class="field-name">Returns:</th><td class="field-body">An instance of <tt class="literal"><span class="pre">reverse_iterator</span></tt> with a
<tt class="literal"><span class="pre">current</span></tt> constructed from <tt class="literal"><span class="pre">x</span></tt>.</td> <tt class="literal"><span class="pre">m_iterator</span></tt> constructed from <tt class="literal"><span class="pre">x</span></tt>.</td>
</tr> </tr>
</tbody> </tbody>
</table> </table>
@ -1481,6 +1485,15 @@ reverse_iterator(
</tr> </tr>
</tbody> </tbody>
</table> </table>
<p><tt class="literal"><span class="pre">Iterator</span> <span class="pre">base()</span> <span class="pre">const;</span></tt></p>
<table class="field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field"><th class="field-name">Returns:</th><td class="field-body"><tt class="literal"><span class="pre">m_iterator</span></tt></td>
</tr>
</tbody>
</table>
<p><tt class="literal"><span class="pre">reference</span> <span class="pre">operator*()</span> <span class="pre">const;</span></tt></p> <p><tt class="literal"><span class="pre">reference</span> <span class="pre">operator*()</span> <span class="pre">const;</span></tt></p>
<table class="field-list" frame="void" rules="none"> <table class="field-list" frame="void" rules="none">
<col class="field-name" /> <col class="field-name" />
@ -1491,7 +1504,7 @@ reverse_iterator(
</tbody> </tbody>
</table> </table>
<pre class="literal-block"> <pre class="literal-block">
Iterator tmp = current; Iterator tmp = m_iterator;
return *..tmp; return *..tmp;
</pre> </pre>
<p><tt class="literal"><span class="pre">reverse_iterator&amp;</span> <span class="pre">operator++();</span></tt></p> <p><tt class="literal"><span class="pre">reverse_iterator&amp;</span> <span class="pre">operator++();</span></tt></p>
@ -1499,7 +1512,7 @@ return *..tmp;
<col class="field-name" /> <col class="field-name" />
<col class="field-body" /> <col class="field-body" />
<tbody valign="top"> <tbody valign="top">
<tr class="field"><th class="field-name">Effects:</th><td class="field-body"><tt class="literal"><span class="pre">--current</span></tt></td> <tr class="field"><th class="field-name">Effects:</th><td class="field-body"><tt class="literal"><span class="pre">--m_iterator</span></tt></td>
</tr> </tr>
<tr class="field"><th class="field-name">Returns:</th><td class="field-body"><tt class="literal"><span class="pre">*this</span></tt></td> <tr class="field"><th class="field-name">Returns:</th><td class="field-body"><tt class="literal"><span class="pre">*this</span></tt></td>
</tr> </tr>
@ -1508,14 +1521,14 @@ return *..tmp;
</div> </div>
</div> </div>
<div class="section" id="transform-iterator"> <div class="section" id="transform-iterator">
<h3><a class="toc-backref" href="#id51" name="transform-iterator">Transform iterator</a></h3> <h3><a class="toc-backref" href="#id49" name="transform-iterator">Transform iterator</a></h3>
<p>The transform iterator adapts an iterator by applying some function <p>The transform iterator adapts an iterator by applying some function
object to the result of dereferencing the iterator. In other words, object to the result of dereferencing the iterator. In other words,
the <tt class="literal"><span class="pre">operator*</span></tt> of the transform iterator first dereferences the the <tt class="literal"><span class="pre">operator*</span></tt> of the transform iterator first dereferences the
base iterator, passes the result of this to the function object, and base iterator, passes the result of this to the function object, and
then returns the result.</p> then returns the result.</p>
<div class="section" id="class-template-transform-iterator"> <div class="section" id="class-template-transform-iterator">
<h4><a class="toc-backref" href="#id52" name="class-template-transform-iterator">Class template <tt class="literal"><span class="pre">transform_iterator</span></tt></a></h4> <h4><a class="toc-backref" href="#id50" name="class-template-transform-iterator">Class template <tt class="literal"><span class="pre">transform_iterator</span></tt></a></h4>
<!-- Version 1.3 of this document was accepted for TR1 --> <!-- Version 1.3 of this document was accepted for TR1 -->
<pre class="literal-block"> <pre class="literal-block">
template &lt;class UnaryFunction, template &lt;class UnaryFunction,
@ -1546,7 +1559,7 @@ private:
</pre> </pre>
</div> </div>
<div class="section" id="transform-iterator-requirements"> <div class="section" id="transform-iterator-requirements">
<h4><a class="toc-backref" href="#id53" name="transform-iterator-requirements"><tt class="literal"><span class="pre">transform_iterator</span></tt> requirements</a></h4> <h4><a class="toc-backref" href="#id51" name="transform-iterator-requirements"><tt class="literal"><span class="pre">transform_iterator</span></tt> requirements</a></h4>
<p>The type <tt class="literal"><span class="pre">UnaryFunction</span></tt> must be Assignable, Copy Constructible, and <p>The type <tt class="literal"><span class="pre">UnaryFunction</span></tt> must be Assignable, Copy Constructible, and
the expression <tt class="literal"><span class="pre">f(*i)</span></tt> must be valid where <tt class="literal"><span class="pre">f</span></tt> is an object of the expression <tt class="literal"><span class="pre">f(*i)</span></tt> must be valid where <tt class="literal"><span class="pre">f</span></tt> is an object of
type <tt class="literal"><span class="pre">UnaryFunction</span></tt>, <tt class="literal"><span class="pre">i</span></tt> is an object of type <tt class="literal"><span class="pre">Iterator</span></tt>, and type <tt class="literal"><span class="pre">UnaryFunction</span></tt>, <tt class="literal"><span class="pre">i</span></tt> is an object of type <tt class="literal"><span class="pre">Iterator</span></tt>, and
@ -1555,7 +1568,7 @@ where the type of <tt class="literal"><span class="pre">f(*i)</span></tt> must b
<p>The type <tt class="literal"><span class="pre">Iterator</span></tt> must at least model Readable Iterator.</p> <p>The type <tt class="literal"><span class="pre">Iterator</span></tt> must at least model Readable Iterator.</p>
</div> </div>
<div class="section" id="transform-iterator-models"> <div class="section" id="transform-iterator-models">
<h4><a class="toc-backref" href="#id54" name="transform-iterator-models"><tt class="literal"><span class="pre">transform_iterator</span></tt> models</a></h4> <h4><a class="toc-backref" href="#id52" name="transform-iterator-models"><tt class="literal"><span class="pre">transform_iterator</span></tt> models</a></h4>
<p>The resulting <tt class="literal"><span class="pre">transform_iterator</span></tt> models the most refined of the <p>The resulting <tt class="literal"><span class="pre">transform_iterator</span></tt> models the most refined of the
following options that is also modeled by <tt class="literal"><span class="pre">Iterator</span></tt>.</p> following options that is also modeled by <tt class="literal"><span class="pre">Iterator</span></tt>.</p>
<blockquote> <blockquote>
@ -1573,7 +1586,7 @@ concept that is modeled by <tt class="literal"><span class="pre">Iterator</span>
The <tt class="literal"><span class="pre">value_type</span></tt> is <tt class="literal"><span class="pre">remove_cv&lt;remove_reference&lt;reference&gt;</span> <span class="pre">&gt;::type</span></tt>.</p> The <tt class="literal"><span class="pre">value_type</span></tt> is <tt class="literal"><span class="pre">remove_cv&lt;remove_reference&lt;reference&gt;</span> <span class="pre">&gt;::type</span></tt>.</p>
</div> </div>
<div class="section" id="transform-iterator-operations"> <div class="section" id="transform-iterator-operations">
<h4><a class="toc-backref" href="#id55" name="transform-iterator-operations"><tt class="literal"><span class="pre">transform_iterator</span></tt> operations</a></h4> <h4><a class="toc-backref" href="#id53" name="transform-iterator-operations"><tt class="literal"><span class="pre">transform_iterator</span></tt> operations</a></h4>
<p><tt class="literal"><span class="pre">transform_iterator();</span></tt></p> <p><tt class="literal"><span class="pre">transform_iterator();</span></tt></p>
<table class="field-list" frame="void" rules="none"> <table class="field-list" frame="void" rules="none">
<col class="field-name" /> <col class="field-name" />
@ -1652,7 +1665,7 @@ transform_iterator(
</div> </div>
</div> </div>
<div class="section" id="filter-iterator"> <div class="section" id="filter-iterator">
<h3><a class="toc-backref" href="#id56" name="filter-iterator">Filter iterator</a></h3> <h3><a class="toc-backref" href="#id54" name="filter-iterator">Filter iterator</a></h3>
<p>The filter iterator adaptor creates a view of an iterator range in <p>The filter iterator adaptor creates a view of an iterator range in
which some elements of the range are skipped over. A predicate which some elements of the range are skipped over. A predicate
function object controls which elements are skipped. When the function object controls which elements are skipped. When the
@ -1664,7 +1677,7 @@ of the underlying range. Therefore the constructor of the filter
iterator takes two iterator parameters: the position for the filtered iterator takes two iterator parameters: the position for the filtered
iterator and the end of the range.</p> iterator and the end of the range.</p>
<div class="section" id="class-template-filter-iterator"> <div class="section" id="class-template-filter-iterator">
<h4><a class="toc-backref" href="#id57" name="class-template-filter-iterator">Class template <tt class="literal"><span class="pre">filter_iterator</span></tt></a></h4> <h4><a class="toc-backref" href="#id55" name="class-template-filter-iterator">Class template <tt class="literal"><span class="pre">filter_iterator</span></tt></a></h4>
<pre class="literal-block"> <pre class="literal-block">
template &lt;class Predicate, class Iterator&gt; template &lt;class Predicate, class Iterator&gt;
class filter_iterator class filter_iterator
@ -1686,8 +1699,13 @@ class filter_iterator
); );
Predicate predicate() const; Predicate predicate() const;
Iterator end() const; Iterator end() const;
Iterator base() const;
reference operator*() const; reference operator*() const;
filter_iterator&amp; operator++(); filter_iterator&amp; operator++();
private:
Predicate m_pred; // exposition
Iterator m_iter; // exposition
Iterator m_end; // exposition
}; };
</pre> </pre>
<p>The <tt class="literal"><span class="pre">iterator_category</span></tt> member is a type convertible to the tags <p>The <tt class="literal"><span class="pre">iterator_category</span></tt> member is a type convertible to the tags
@ -1695,7 +1713,7 @@ corresponding to each standard concept modeled by <tt class="literal"><span clas
as described in the models section.</p> as described in the models section.</p>
</div> </div>
<div class="section" id="filter-iterator-requirements"> <div class="section" id="filter-iterator-requirements">
<h4><a class="toc-backref" href="#id58" name="filter-iterator-requirements"><tt class="literal"><span class="pre">filter_iterator</span></tt> requirements</a></h4> <h4><a class="toc-backref" href="#id56" name="filter-iterator-requirements"><tt class="literal"><span class="pre">filter_iterator</span></tt> requirements</a></h4>
<p>The <tt class="literal"><span class="pre">Predicate</span></tt> argument must be Assignable, Copy Constructible, and <p>The <tt class="literal"><span class="pre">Predicate</span></tt> argument must be Assignable, Copy Constructible, and
the expression <tt class="literal"><span class="pre">p(x)</span></tt> must be valid where <tt class="literal"><span class="pre">p</span></tt> is an object of type the expression <tt class="literal"><span class="pre">p(x)</span></tt> must be valid where <tt class="literal"><span class="pre">p</span></tt> is an object of type
<tt class="literal"><span class="pre">Predicate</span></tt>, <tt class="literal"><span class="pre">x</span></tt> is an object of type <tt class="literal"><span class="pre">Predicate</span></tt>, <tt class="literal"><span class="pre">x</span></tt> is an object of type
@ -1706,11 +1724,11 @@ Iterator and Single Pass Iterator or it shall meet the requirements of
Input Iterator.</p> Input Iterator.</p>
</div> </div>
<div class="section" id="filter-iterator-models"> <div class="section" id="filter-iterator-models">
<h4><a class="toc-backref" href="#id59" name="filter-iterator-models"><tt class="literal"><span class="pre">filter_iterator</span></tt> models</a></h4> <h4><a class="toc-backref" href="#id57" name="filter-iterator-models"><tt class="literal"><span class="pre">filter_iterator</span></tt> models</a></h4>
<p>The concepts that <tt class="literal"><span class="pre">filter_iterator</span></tt> models are dependent on what <p>The concepts that <tt class="literal"><span class="pre">filter_iterator</span></tt> models are dependent on what
concepts the <tt class="literal"><span class="pre">Iterator</span></tt> argument models, as specified in the concepts the <tt class="literal"><span class="pre">Iterator</span></tt> argument models, as specified in the
following tables.</p> following tables.</p>
<table border class="table"> <table class="table" frame="border" rules="all">
<colgroup> <colgroup>
<col width="33%" /> <col width="33%" />
<col width="67%" /> <col width="67%" />
@ -1729,7 +1747,7 @@ following tables.</p>
</tr> </tr>
</tbody> </tbody>
</table> </table>
<table border class="table"> <table class="table" frame="border" rules="all">
<colgroup> <colgroup>
<col width="41%" /> <col width="41%" />
<col width="59%" /> <col width="59%" />
@ -1751,7 +1769,7 @@ following tables.</p>
</tr> </tr>
</tbody> </tbody>
</table> </table>
<table border class="table"> <table class="table" frame="border" rules="all">
<colgroup> <colgroup>
<col width="63%" /> <col width="63%" />
<col width="38%" /> <col width="38%" />
@ -1775,7 +1793,7 @@ following tables.</p>
</table> </table>
</div> </div>
<div class="section" id="filter-iterator-operations"> <div class="section" id="filter-iterator-operations">
<h4><a class="toc-backref" href="#id60" name="filter-iterator-operations"><tt class="literal"><span class="pre">filter_iterator</span></tt> operations</a></h4> <h4><a class="toc-backref" href="#id58" name="filter-iterator-operations"><tt class="literal"><span class="pre">filter_iterator</span></tt> operations</a></h4>
<p>In addition to those operations required by the concepts that <p>In addition to those operations required by the concepts that
<tt class="literal"><span class="pre">filter_iterator</span></tt> models, <tt class="literal"><span class="pre">filter_iterator</span></tt> provides the following <tt class="literal"><span class="pre">filter_iterator</span></tt> models, <tt class="literal"><span class="pre">filter_iterator</span></tt> provides the following
operations.</p> operations.</p>
@ -1786,9 +1804,8 @@ operations.</p>
<tbody valign="top"> <tbody valign="top">
<tr class="field"><th class="field-name">Requires:</th><td class="field-body"><tt class="literal"><span class="pre">Predicate</span></tt> and <tt class="literal"><span class="pre">Iterator</span></tt> must be Default Constructible.</td> <tr class="field"><th class="field-name">Requires:</th><td class="field-body"><tt class="literal"><span class="pre">Predicate</span></tt> and <tt class="literal"><span class="pre">Iterator</span></tt> must be Default Constructible.</td>
</tr> </tr>
<tr class="field"><th class="field-name">Returns:</th><td class="field-body">a <tt class="literal"><span class="pre">filter_iterator</span></tt> whose <tr class="field"><th class="field-name">Returns:</th><td class="field-body">a <tt class="literal"><span class="pre">filter_iterator</span></tt> whose``m_pred``, <tt class="literal"><span class="pre">m_iter</span></tt>, and <tt class="literal"><span class="pre">m_end</span></tt>
predicate is a default constructed <tt class="literal"><span class="pre">Predicate</span></tt> and members are a default constructed.</td>
whose <tt class="literal"><span class="pre">end</span></tt> is a default constructed <tt class="literal"><span class="pre">Iterator</span></tt>.</td>
</tr> </tr>
</tbody> </tbody>
</table> </table>
@ -1797,8 +1814,10 @@ whose <tt class="literal"><span class="pre">end</span></tt> is a default constru
<col class="field-name" /> <col class="field-name" />
<col class="field-body" /> <col class="field-body" />
<tbody valign="top"> <tbody valign="top">
<tr class="field"><th class="field-name">Returns:</th><td class="field-body">A <tt class="literal"><span class="pre">filter_iterator</span></tt> at the first position in the range <tt class="literal"><span class="pre">[x,end)</span></tt> <tr class="field"><th class="field-name">Returns:</th><td class="field-body">A <tt class="literal"><span class="pre">filter_iterator</span></tt> where <tt class="literal"><span class="pre">m_iter</span></tt> is either
such that <tt class="literal"><span class="pre">f(*this-&gt;base())</span> <span class="pre">==</span> <span class="pre">true</span></tt> or else at position <tt class="literal"><span class="pre">end</span></tt>.</td> the first position in the range <tt class="literal"><span class="pre">[x,end)</span></tt> such that <tt class="literal"><span class="pre">f(*m_iter)</span> <span class="pre">==</span> <span class="pre">true</span></tt>
or else``m_iter == end``. The member <tt class="literal"><span class="pre">m_pred</span></tt> is constructed from
<tt class="literal"><span class="pre">f</span></tt> and <tt class="literal"><span class="pre">m_end</span></tt> from <tt class="literal"><span class="pre">end</span></tt>.</td>
</tr> </tr>
</tbody> </tbody>
</table> </table>
@ -1809,13 +1828,9 @@ such that <tt class="literal"><span class="pre">f(*this-&gt;base())</span> <span
<tbody valign="top"> <tbody valign="top">
<tr class="field"><th class="field-name">Requires:</th><td class="field-body"><tt class="literal"><span class="pre">Predicate</span></tt> must be Default Constructible.</td> <tr class="field"><th class="field-name">Requires:</th><td class="field-body"><tt class="literal"><span class="pre">Predicate</span></tt> must be Default Constructible.</td>
</tr> </tr>
<tr class="field"><th class="field-name">Returns:</th><td class="field-body">A <tt class="literal"><span class="pre">filter_iterator</span></tt> at the first position in the range <tt class="literal"><span class="pre">[x,end)</span></tt> <tr class="field"><th class="field-name">Returns:</th><td class="field-body">A <tt class="literal"><span class="pre">filter_iterator</span></tt> where <tt class="literal"><span class="pre">m_iter</span></tt> is either
such that <tt class="literal"><span class="pre">f(*this-&gt;base())</span> <span class="pre">==</span> <span class="pre">true</span></tt>, where <tt class="literal"><span class="pre">f</span></tt> is a default the first position in the range <tt class="literal"><span class="pre">[x,end)</span></tt> such that <tt class="literal"><span class="pre">m_pred(*m_iter)</span> <span class="pre">==</span> <span class="pre">true</span></tt>
constructed <tt class="literal"><span class="pre">Predicate</span></tt>, or else at position <tt class="literal"><span class="pre">end</span></tt>.</td> or else``m_iter == end``. The member <tt class="literal"><span class="pre">m_pred</span></tt> is default constructed.</td>
</tr>
<tr class="field"><th class="field-name">Returns:</th><td class="field-body">A <tt class="literal"><span class="pre">filter_iterator</span></tt> at position <tt class="literal"><span class="pre">x</span></tt> that filters
according to a default constructed <tt class="literal"><span class="pre">Predicate</span></tt>
and that will not increment past <tt class="literal"><span class="pre">end</span></tt>.</td>
</tr> </tr>
</tbody> </tbody>
</table> </table>
@ -1832,8 +1847,7 @@ filter_iterator(
<tbody valign="top"> <tbody valign="top">
<tr class="field"><th class="field-name">Requires:</th><td class="field-body"><tt class="literal"><span class="pre">OtherIterator</span></tt> is implicitly convertible to <tt class="literal"><span class="pre">Iterator</span></tt>.</td> <tr class="field"><th class="field-name">Requires:</th><td class="field-body"><tt class="literal"><span class="pre">OtherIterator</span></tt> is implicitly convertible to <tt class="literal"><span class="pre">Iterator</span></tt>.</td>
</tr> </tr>
<tr class="field"><th class="field-name">Returns:</th><td class="field-body">A filter iterator at the same position as iterator <tt class="literal"><span class="pre">t</span></tt> <tr class="field"><th class="field-name">Returns:</th><td class="field-body">A filter iterator whose members are copied from <tt class="literal"><span class="pre">t</span></tt>.</td>
whose predicate and end are copies of <tt class="literal"><span class="pre">t.predicate</span></tt> and <tt class="literal"><span class="pre">t.end()</span></tt> .</td>
</tr> </tr>
</tbody> </tbody>
</table> </table>
@ -1842,7 +1856,7 @@ whose predicate and end are copies of <tt class="literal"><span class="pre">t.pr
<col class="field-name" /> <col class="field-name" />
<col class="field-body" /> <col class="field-body" />
<tbody valign="top"> <tbody valign="top">
<tr class="field"><th class="field-name">Returns:</th><td class="field-body">A copy of the predicate object used to construct <tt class="literal"><span class="pre">*this</span></tt>.</td> <tr class="field"><th class="field-name">Returns:</th><td class="field-body"><tt class="literal"><span class="pre">m_pred</span></tt></td>
</tr> </tr>
</tbody> </tbody>
</table> </table>
@ -1851,7 +1865,16 @@ whose predicate and end are copies of <tt class="literal"><span class="pre">t.pr
<col class="field-name" /> <col class="field-name" />
<col class="field-body" /> <col class="field-body" />
<tbody valign="top"> <tbody valign="top">
<tr class="field"><th class="field-name">Returns:</th><td class="field-body">A copy of the object <tt class="literal"><span class="pre">end</span></tt> used to construct <tt class="literal"><span class="pre">*this</span></tt>.</td> <tr class="field"><th class="field-name">Returns:</th><td class="field-body"><tt class="literal"><span class="pre">m_end</span></tt></td>
</tr>
</tbody>
</table>
<p><tt class="literal"><span class="pre">Iterator</span> <span class="pre">base()</span> <span class="pre">const;</span></tt></p>
<table class="field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field"><th class="field-name">Returns:</th><td class="field-body"><tt class="literal"><span class="pre">m_iterator</span></tt></td>
</tr> </tr>
</tbody> </tbody>
</table> </table>
@ -1860,7 +1883,7 @@ whose predicate and end are copies of <tt class="literal"><span class="pre">t.pr
<col class="field-name" /> <col class="field-name" />
<col class="field-body" /> <col class="field-body" />
<tbody valign="top"> <tbody valign="top">
<tr class="field"><th class="field-name">Returns:</th><td class="field-body"><tt class="literal"><span class="pre">*(this-&gt;base())</span></tt></td> <tr class="field"><th class="field-name">Returns:</th><td class="field-body"><tt class="literal"><span class="pre">*m_iter</span></tt></td>
</tr> </tr>
</tbody> </tbody>
</table> </table>
@ -1869,9 +1892,9 @@ whose predicate and end are copies of <tt class="literal"><span class="pre">t.pr
<col class="field-name" /> <col class="field-name" />
<col class="field-body" /> <col class="field-body" />
<tbody valign="top"> <tbody valign="top">
<tr class="field"><th class="field-name">Effects:</th><td class="field-body">Increments <tt class="literal"><span class="pre">*this</span></tt> and then continues to <tr class="field"><th class="field-name">Effects:</th><td class="field-body">Increments <tt class="literal"><span class="pre">m_iter</span></tt> and then continues to
increment <tt class="literal"><span class="pre">*this</span></tt> until either <tt class="literal"><span class="pre">this-&gt;base()</span> <span class="pre">==</span> <span class="pre">this-&gt;end()</span></tt> increment <tt class="literal"><span class="pre">m_iter</span></tt> until either <tt class="literal"><span class="pre">m_iter</span> <span class="pre">==</span> <span class="pre">m_end</span></tt>
or <tt class="literal"><span class="pre">f(**this)</span> <span class="pre">==</span> <span class="pre">true</span></tt>.</td> or <tt class="literal"><span class="pre">m_pred(*m_iter)</span> <span class="pre">==</span> <span class="pre">true</span></tt>.</td>
</tr> </tr>
<tr class="field"><th class="field-name">Returns:</th><td class="field-body"><tt class="literal"><span class="pre">*this</span></tt></td> <tr class="field"><th class="field-name">Returns:</th><td class="field-body"><tt class="literal"><span class="pre">*this</span></tt></td>
</tr> </tr>
@ -1880,11 +1903,11 @@ or <tt class="literal"><span class="pre">f(**this)</span> <span class="pre">==</
</div> </div>
</div> </div>
<div class="section" id="counting-iterator"> <div class="section" id="counting-iterator">
<h3><a class="toc-backref" href="#id61" name="counting-iterator">Counting iterator</a></h3> <h3><a class="toc-backref" href="#id59" name="counting-iterator">Counting iterator</a></h3>
<p><tt class="literal"><span class="pre">counting_iterator</span></tt> adapts an arithmetic type, such as <tt class="literal"><span class="pre">int</span></tt>, by <p><tt class="literal"><span class="pre">counting_iterator</span></tt> adapts an arithmetic type, such as <tt class="literal"><span class="pre">int</span></tt>, by
adding an <tt class="literal"><span class="pre">operator*</span></tt> that returns the current value of the object.</p> adding an <tt class="literal"><span class="pre">operator*</span></tt> that returns the current value of the object.</p>
<div class="section" id="class-template-counting-iterator"> <div class="section" id="class-template-counting-iterator">
<h4><a class="toc-backref" href="#id62" name="class-template-counting-iterator">Class template <tt class="literal"><span class="pre">counting_iterator</span></tt></a></h4> <h4><a class="toc-backref" href="#id60" name="class-template-counting-iterator">Class template <tt class="literal"><span class="pre">counting_iterator</span></tt></a></h4>
<pre class="literal-block"> <pre class="literal-block">
template &lt; template &lt;
class Incrementable class Incrementable
@ -1909,13 +1932,13 @@ the cases when the <tt class="literal"><span class="pre">Incrementable</span></t
</dl> </dl>
</div> </div>
<div class="section" id="counting-iterator-requirements"> <div class="section" id="counting-iterator-requirements">
<h4><a class="toc-backref" href="#id63" name="counting-iterator-requirements"><tt class="literal"><span class="pre">counting_iterator</span></tt> requirements</a></h4> <h4><a class="toc-backref" href="#id61" name="counting-iterator-requirements"><tt class="literal"><span class="pre">counting_iterator</span></tt> requirements</a></h4>
<p>The <tt class="literal"><span class="pre">Incrementable</span></tt> type must be Default Constructible, Copy <p>The <tt class="literal"><span class="pre">Incrementable</span></tt> type must be Default Constructible, Copy
Constructible, and Assignable. The default distance is Constructible, and Assignable. The default distance is
an implementation defined signed integral type.</p> an implementation defined signed integral type.</p>
</div> </div>
<div class="section" id="counting-iterator-models"> <div class="section" id="counting-iterator-models">
<h4><a class="toc-backref" href="#id64" name="counting-iterator-models"><tt class="literal"><span class="pre">counting_iterator</span></tt> models</a></h4> <h4><a class="toc-backref" href="#id62" name="counting-iterator-models"><tt class="literal"><span class="pre">counting_iterator</span></tt> models</a></h4>
<p><tt class="literal"><span class="pre">counting_iterator</span></tt> models Readable Lvalue Iterator.</p> <p><tt class="literal"><span class="pre">counting_iterator</span></tt> models Readable Lvalue Iterator.</p>
<p>Furthermore, if you wish to create a counting iterator that is a Forward <p>Furthermore, if you wish to create a counting iterator that is a Forward
Traversal Iterator, then the following expressions must be valid:</p> Traversal Iterator, then the following expressions must be valid:</p>
@ -1940,7 +1963,7 @@ i &lt; j
</pre> </pre>
</div> </div>
<div class="section" id="counting-iterator-operations"> <div class="section" id="counting-iterator-operations">
<h4><a class="toc-backref" href="#id65" name="counting-iterator-operations"><tt class="literal"><span class="pre">counting_iterator</span></tt> operations</a></h4> <h4><a class="toc-backref" href="#id63" name="counting-iterator-operations"><tt class="literal"><span class="pre">counting_iterator</span></tt> operations</a></h4>
<p><tt class="literal"><span class="pre">counting_iterator();</span></tt></p> <p><tt class="literal"><span class="pre">counting_iterator();</span></tt></p>
<table class="field-list" frame="void" rules="none"> <table class="field-list" frame="void" rules="none">
<col class="field-name" /> <col class="field-name" />
@ -1999,7 +2022,7 @@ constructed from <tt class="literal"><span class="pre">x</span></tt>.</td>
</div> </div>
</div> </div>
<div class="section" id="function-output-iterator"> <div class="section" id="function-output-iterator">
<h3><a class="toc-backref" href="#id66" name="function-output-iterator">Function output iterator</a></h3> <h3><a class="toc-backref" href="#id64" name="function-output-iterator">Function output iterator</a></h3>
<p>The function output iterator adaptor makes it easier to create custom <p>The function output iterator adaptor makes it easier to create custom
output iterators. The adaptor takes a unary function and creates a output iterators. The adaptor takes a unary function and creates a
model of Output Iterator. Each item assigned to the output iterator is model of Output Iterator. Each item assigned to the output iterator is
@ -2008,7 +2031,7 @@ iterator is that creating a conforming output iterator is non-trivial,
particularly because the proper implementation usually requires a particularly because the proper implementation usually requires a
proxy object.</p> proxy object.</p>
<div class="section" id="class-template-function-output-iterator"> <div class="section" id="class-template-function-output-iterator">
<h4><a class="toc-backref" href="#id67" name="class-template-function-output-iterator">Class template <tt class="literal"><span class="pre">function_output_iterator</span></tt></a></h4> <h4><a class="toc-backref" href="#id65" name="class-template-function-output-iterator">Class template <tt class="literal"><span class="pre">function_output_iterator</span></tt></a></h4>
<pre class="literal-block"> <pre class="literal-block">
template &lt;class UnaryFunction&gt; template &lt;class UnaryFunction&gt;
class function_output_iterator { class function_output_iterator {
@ -2035,7 +2058,7 @@ public:
</pre> </pre>
</div> </div>
<div class="section" id="function-output-iterator-requirements"> <div class="section" id="function-output-iterator-requirements">
<h4><a class="toc-backref" href="#id68" name="function-output-iterator-requirements"><tt class="literal"><span class="pre">function_output_iterator</span></tt> requirements</a></h4> <h4><a class="toc-backref" href="#id66" name="function-output-iterator-requirements"><tt class="literal"><span class="pre">function_output_iterator</span></tt> requirements</a></h4>
<p>The <tt class="literal"><span class="pre">UnaryFunction</span></tt> must be Assignable, Copy Constructible, and the <p>The <tt class="literal"><span class="pre">UnaryFunction</span></tt> must be Assignable, Copy Constructible, and the
expression <tt class="literal"><span class="pre">f(x)</span></tt> must be valid, where <tt class="literal"><span class="pre">f</span></tt> is an object of type expression <tt class="literal"><span class="pre">f(x)</span></tt> must be valid, where <tt class="literal"><span class="pre">f</span></tt> is an object of type
<tt class="literal"><span class="pre">UnaryFunction</span></tt> and <tt class="literal"><span class="pre">x</span></tt> is an object of a type accepted by <tt class="literal"><span class="pre">f</span></tt>. <tt class="literal"><span class="pre">UnaryFunction</span></tt> and <tt class="literal"><span class="pre">x</span></tt> is an object of a type accepted by <tt class="literal"><span class="pre">f</span></tt>.
@ -2043,7 +2066,7 @@ The resulting <tt class="literal"><span class="pre">function_output_iterator</sp
and Incrementable Iterator concepts.</p> and Incrementable Iterator concepts.</p>
</div> </div>
<div class="section" id="function-output-iterator-operations"> <div class="section" id="function-output-iterator-operations">
<h4><a class="toc-backref" href="#id69" name="function-output-iterator-operations"><tt class="literal"><span class="pre">function_output_iterator</span></tt> operations</a></h4> <h4><a class="toc-backref" href="#id67" name="function-output-iterator-operations"><tt class="literal"><span class="pre">function_output_iterator</span></tt> operations</a></h4>
<p><tt class="literal"><span class="pre">explicit</span> <span class="pre">function_output_iterator(const</span> <span class="pre">UnaryFunction&amp;</span> <span class="pre">f</span> <span class="pre">=</span> <span class="pre">UnaryFunction());</span></tt></p> <p><tt class="literal"><span class="pre">explicit</span> <span class="pre">function_output_iterator(const</span> <span class="pre">UnaryFunction&amp;</span> <span class="pre">f</span> <span class="pre">=</span> <span class="pre">UnaryFunction());</span></tt></p>
<table class="field-list" frame="void" rules="none"> <table class="field-list" frame="void" rules="none">
<col class="field-name" /> <col class="field-name" />
@ -2084,7 +2107,7 @@ a copy of the unary function <tt class="literal"><span class="pre">f</span></tt>
</table> </table>
</div> </div>
<div class="section" id="function-output-iterator-output-proxy-operations"> <div class="section" id="function-output-iterator-output-proxy-operations">
<h4><a class="toc-backref" href="#id70" name="function-output-iterator-output-proxy-operations"><tt class="literal"><span class="pre">function_output_iterator::output_proxy</span></tt> operations</a></h4> <h4><a class="toc-backref" href="#id68" name="function-output-iterator-output-proxy-operations"><tt class="literal"><span class="pre">function_output_iterator::output_proxy</span></tt> operations</a></h4>
<p><tt class="literal"><span class="pre">output_proxy(UnaryFunction&amp;</span> <span class="pre">f);</span></tt></p> <p><tt class="literal"><span class="pre">output_proxy(UnaryFunction&amp;</span> <span class="pre">f);</span></tt></p>
<table class="field-list" frame="void" rules="none"> <table class="field-list" frame="void" rules="none">
<col class="field-name" /> <col class="field-name" />
@ -2119,5 +2142,11 @@ LocalWords: OtherIncrementable Coplien -->
</div> </div>
</div> </div>
</div> </div>
<hr class="footer"/>
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@ -297,9 +297,6 @@ Iterator facade [lib.iterator.facade]
.. include:: iterator_facade_abstract.rst .. include:: iterator_facade_abstract.rst
Class template ``iterator_facade``
----------------------------------
.. include:: iterator_facade_ref.rst .. include:: iterator_facade_ref.rst
Iterator adaptor [lib.iterator.adaptor] Iterator adaptor [lib.iterator.adaptor]
@ -307,9 +304,6 @@ Iterator adaptor [lib.iterator.adaptor]
.. include:: iterator_adaptor_abstract.rst .. include:: iterator_adaptor_abstract.rst
Class template ``iterator_adaptor``
-----------------------------------
.. include:: iterator_adaptor_ref.rst .. include:: iterator_adaptor_ref.rst

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@ -3,236 +3,9 @@
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<body> <body>
<div class="document" id="the-boost-iterator-library-logo"> <div class="document" id="the-boost-iterator-library-logo">
@ -444,10 +217,10 @@ LocalWords: incrementable xxx min prev inplace png oldeqnew AccessTag struct
LocalWords: TraversalTag typename lvalues DWA Hmm JGS --> LocalWords: TraversalTag typename lvalues DWA Hmm JGS -->
</div> </div>
</div> </div>
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Generated on: 2004-01-12 02:46 UTC. Generated on: 2004-01-12 14:56 UTC.
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35
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@ -3,7 +3,7 @@
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head> <head>
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<title>Iterator Facade</title> <title>Iterator Facade</title>
<meta name="author" content="David Abrahams, Jeremy Siek, Thomas Witt" /> <meta name="author" content="David Abrahams, Jeremy Siek, Thomas Witt" />
<meta name="organization" content="Boost Consulting, Indiana University Open Systems Lab, University of Hanover Institute for Transport Railway Operation and Construction" /> <meta name="organization" content="Boost Consulting, Indiana University Open Systems Lab, University of Hanover Institute for Transport Railway Operation and Construction" />
@ -76,15 +76,12 @@ and associated types, to be supplied by a derived iterator class.</td>
</ul> </ul>
</li> </li>
<li><a class="reference" href="#id14" id="id42" name="id42">Reference</a><ul> <li><a class="reference" href="#id14" id="id42" name="id42">Reference</a><ul>
<li><a class="reference" href="#ref" id="id43" name="id43">Ref</a><ul> <li><a class="reference" href="#iterator-facade-usage" id="id43" name="id43"><tt class="literal"><span class="pre">iterator_facade</span></tt> usage</a><ul>
<li><a class="reference" href="#iterator-facade-usage" id="id44" name="id44"><tt class="literal"><span class="pre">iterator_facade</span></tt> usage</a><ul> <li><a class="reference" href="#iterator-facade-core-operations" id="id44" name="id44"><tt class="literal"><span class="pre">iterator_facade</span></tt> Core Operations</a></li>
<li><a class="reference" href="#iterator-facade-core-operations" id="id45" name="id45"><tt class="literal"><span class="pre">iterator_facade</span></tt> Core Operations</a></li>
</ul>
</li>
<li><a class="reference" href="#iterator-facade-iterator-category" id="id46" name="id46"><tt class="literal"><span class="pre">iterator_facade</span></tt> iterator category</a></li>
<li><a class="reference" href="#iterator-facade-operations" id="id47" name="id47"><tt class="literal"><span class="pre">iterator_facade</span></tt> operations</a></li>
</ul> </ul>
</li> </li>
<li><a class="reference" href="#iterator-facade-iterator-category" id="id45" name="id45"><tt class="literal"><span class="pre">iterator_facade</span></tt> iterator category</a></li>
<li><a class="reference" href="#iterator-facade-operations" id="id46" name="id46"><tt class="literal"><span class="pre">iterator_facade</span></tt> operations</a></li>
</ul> </ul>
</li> </li>
</ul> </ul>
@ -153,7 +150,7 @@ of the derived iterator type. These member functions are described
briefly below and in more detail in the iterator facade briefly below and in more detail in the iterator facade
requirements.</p> requirements.</p>
<blockquote> <blockquote>
<table border class="table"> <table class="table" frame="border" rules="all">
<colgroup> <colgroup>
<col width="44%" /> <col width="44%" />
<col width="56%" /> <col width="56%" />
@ -396,7 +393,7 @@ must be a <a class="reference" href="new-iter-concepts.html#forward-traversal-it
<colgroup><col class="label" /><col /></colgroup> <colgroup><col class="label" /><col /></colgroup>
<tbody valign="top"> <tbody valign="top">
<tr><td class="label"><a class="fn-backref" href="#id4" name="category">[1]</a></td><td><tt class="literal"><span class="pre">iterator_facade</span></tt> also supports old-style category <tr><td class="label"><a class="fn-backref" href="#id4" name="category">[1]</a></td><td><tt class="literal"><span class="pre">iterator_facade</span></tt> also supports old-style category
tags, so we could've passed <tt class="literal"><span class="pre">std::forward_iterator_tag</span></tt> here; tags, so we could have passed <tt class="literal"><span class="pre">std::forward_iterator_tag</span></tt> here;
either way, the resulting iterator's <tt class="literal"><span class="pre">iterator_category</span></tt> will either way, the resulting iterator's <tt class="literal"><span class="pre">iterator_category</span></tt> will
end up being <tt class="literal"><span class="pre">std::forward_iterator_tag</span></tt>.</td></tr> end up being <tt class="literal"><span class="pre">std::forward_iterator_tag</span></tt>.</td></tr>
</tbody> </tbody>
@ -751,9 +748,6 @@ even be superior.</p>
</div> </div>
<div class="section" id="id14"> <div class="section" id="id14">
<h1><a class="toc-backref" href="#id42" name="id14">Reference</a></h1> <h1><a class="toc-backref" href="#id42" name="id14">Reference</a></h1>
<div class="section" id="ref">
<h2><a class="toc-backref" href="#id43" name="ref">Ref</a></h2>
<p>We need to resolve the title levels here.</p>
<!-- Version 1.3 of this ReStructuredText document corresponds to <!-- Version 1.3 of this ReStructuredText document corresponds to
n1530_, the paper accepted by the LWG for TR1. --> n1530_, the paper accepted by the LWG for TR1. -->
<!-- Copyright David Abrahams, Jeremy Siek, and Thomas Witt 2003. All <!-- Copyright David Abrahams, Jeremy Siek, and Thomas Witt 2003. All
@ -865,7 +859,7 @@ struct enable_if_interoperable
{}; {};
</pre> </pre>
<div class="section" id="iterator-facade-usage"> <div class="section" id="iterator-facade-usage">
<h3><a class="toc-backref" href="#id44" name="iterator-facade-usage"><tt class="literal"><span class="pre">iterator_facade</span></tt> usage</a></h3> <h2><a class="toc-backref" href="#id43" name="iterator-facade-usage"><tt class="literal"><span class="pre">iterator_facade</span></tt> usage</a></h2>
<p>The following table describes the typical valid expressions on <p>The following table describes the typical valid expressions on
<tt class="literal"><span class="pre">iterator_facade</span></tt>'s <tt class="literal"><span class="pre">Derived</span></tt> parameter, depending on the <tt class="literal"><span class="pre">iterator_facade</span></tt>'s <tt class="literal"><span class="pre">Derived</span></tt> parameter, depending on the
iterator concept(s) it will model. The operations in the first iterator concept(s) it will model. The operations in the first
@ -878,8 +872,8 @@ object of a single pass iterator type interoperable with <tt class="literal"><sp
is a constant object of a random access traversal iterator type is a constant object of a random access traversal iterator type
interoperable with <tt class="literal"><span class="pre">X</span></tt>.</p> interoperable with <tt class="literal"><span class="pre">X</span></tt>.</p>
<a class="target" id="id18" name="id18"></a><div class="section" id="iterator-facade-core-operations"> <a class="target" id="id18" name="id18"></a><div class="section" id="iterator-facade-core-operations">
<h4><a class="toc-backref" href="#id45" name="iterator-facade-core-operations"><tt class="literal"><span class="pre">iterator_facade</span></tt> Core Operations</a></h4> <h3><a class="toc-backref" href="#id44" name="iterator-facade-core-operations"><tt class="literal"><span class="pre">iterator_facade</span></tt> Core Operations</a></h3>
<table border class="table"> <table class="table" frame="border" rules="all">
<colgroup> <colgroup>
<col width="19%" /> <col width="19%" />
<col width="21%" /> <col width="21%" />
@ -946,7 +940,7 @@ Iterator</td>
<a class="target" id="facade-iterator-category" name="facade-iterator-category"></a></div> <a class="target" id="facade-iterator-category" name="facade-iterator-category"></a></div>
</div> </div>
<div class="section" id="iterator-facade-iterator-category"> <div class="section" id="iterator-facade-iterator-category">
<h3><a class="toc-backref" href="#id46" name="iterator-facade-iterator-category"><tt class="literal"><span class="pre">iterator_facade</span></tt> iterator category</a></h3> <h2><a class="toc-backref" href="#id45" name="iterator-facade-iterator-category"><tt class="literal"><span class="pre">iterator_facade</span></tt> iterator category</a></h2>
<p>The <tt class="literal"><span class="pre">iterator_category</span></tt> member of <tt class="literal"><span class="pre">iterator_facade&lt;X,V,R,C,D&gt;</span></tt> <p>The <tt class="literal"><span class="pre">iterator_category</span></tt> member of <tt class="literal"><span class="pre">iterator_facade&lt;X,V,R,C,D&gt;</span></tt>
is a type which satisfies the following conditions:</p> is a type which satisfies the following conditions:</p>
<blockquote> <blockquote>
@ -999,7 +993,7 @@ convertible, and not to any more-derived traversal tag type.</p>
</blockquote> </blockquote>
</div> </div>
<div class="section" id="iterator-facade-operations"> <div class="section" id="iterator-facade-operations">
<h3><a class="toc-backref" href="#id47" name="iterator-facade-operations"><tt class="literal"><span class="pre">iterator_facade</span></tt> operations</a></h3> <h2><a class="toc-backref" href="#id46" name="iterator-facade-operations"><tt class="literal"><span class="pre">iterator_facade</span></tt> operations</a></h2>
<p>The operations in this section are described in terms of operations on <p>The operations in this section are described in terms of operations on
the core interface of <tt class="literal"><span class="pre">Derived</span></tt> which may be inaccessible the core interface of <tt class="literal"><span class="pre">Derived</span></tt> which may be inaccessible
(i.e. private). The implementation should access these operations (i.e. private). The implementation should access these operations
@ -1141,6 +1135,11 @@ return tmp -= n;
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@ -36,11 +36,6 @@ Tutorial Example
Reference Reference
========= =========
Ref
---
We need to resolve the title levels here.
.. include:: iterator_facade_ref.rst .. include:: iterator_facade_ref.rst
.. _counting: counting_iterator.html .. _counting: counting_iterator.html

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@ -121,7 +121,7 @@ were defined to be::
``iterator_facade`` usage ``iterator_facade`` usage
......................... -------------------------
The following table describes the typical valid expressions on The following table describes the typical valid expressions on
``iterator_facade``\ 's ``Derived`` parameter, depending on the ``iterator_facade``\ 's ``Derived`` parameter, depending on the
@ -139,7 +139,7 @@ interoperable with ``X``.
.. _`core operations`: .. _`core operations`:
``iterator_facade`` Core Operations ``iterator_facade`` Core Operations
''''''''''''''''''''''''''''''''''' ...................................
+--------------------+----------------------+-------------------------------------+---------------------------+ +--------------------+----------------------+-------------------------------------+---------------------------+
|Expression |Return Type |Assertion/Note |Used to implement Iterator | |Expression |Return Type |Assertion/Note |Used to implement Iterator |
@ -171,7 +171,7 @@ interoperable with ``X``.
.. _facade iterator category: .. _facade iterator category:
``iterator_facade`` iterator category ``iterator_facade`` iterator category
..................................... -------------------------------------
The ``iterator_category`` member of ``iterator_facade<X,V,R,C,D>`` The ``iterator_category`` member of ``iterator_facade<X,V,R,C,D>``
is a type which satisfies the following conditions: is a type which satisfies the following conditions:
@ -219,7 +219,7 @@ is a type which satisfies the following conditions:
``iterator_facade`` operations ``iterator_facade`` operations
.............................. ------------------------------
The operations in this section are described in terms of operations on The operations in this section are described in terms of operations on
the core interface of ``Derived`` which may be inaccessible the core interface of ``Derived`` which may be inaccessible