feedc0de/boost_range
1
0
Fork 0
forked from boostorg/range
Code Pull Requests Activity
Files
4fc942f45e37d7ea9ee0f2e81f1aaf1a6036a214
boost_range/doc/html/range/faq.html

90 lines
6.6 KiB
HTML
Raw Normal View History

Boost.RangeEx merged into Boost.Range [SVN r60897]
2010-03-28 16:08:35 +00:00
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=US-ASCII">
<title>FAQ</title>
[range] disambiguate const / non-const overloads for Intel compilers and older GCC. [SVN r63998]
2010-07-13 20:31:40 +00:00
<link rel="stylesheet" href="../../../../../doc/src/boostbook.css" type="text/css">
<meta name="generator" content="DocBook XSL Stylesheets V1.75.2">
Boost.RangeEx merged into Boost.Range [SVN r60897]
2010-03-28 16:08:35 +00:00
<link rel="home" href="../index.html" title="Chapter&#160;1.&#160;Range 2.0">
<link rel="up" href="../index.html" title="Chapter&#160;1.&#160;Range 2.0">
<link rel="prev" href="portability.html" title="Portability">
<link rel="next" href="history_ack.html" title="History and Acknowledgement">
</head>
<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
<table cellpadding="2" width="100%"><tr>
<td valign="top"><img alt="Boost C++ Libraries" width="277" height="86" src="../../../../../boost.png"></td>
<td align="center"><a href="../../../../../index.html">Home</a></td>
[range] disambiguate const / non-const overloads for Intel compilers and older GCC. [SVN r63998]
2010-07-13 20:31:40 +00:00
<td align="center"><a href="../../../../../libs/libraries.htm">Libraries</a></td>
Boost.RangeEx merged into Boost.Range [SVN r60897]
2010-03-28 16:08:35 +00:00
<td align="center"><a href="http://www.boost.org/users/people.html">People</a></td>
<td align="center"><a href="http://www.boost.org/users/faq.html">FAQ</a></td>
<td align="center"><a href="../../../../../more/index.htm">More</a></td>
</tr></table>
<hr>
<div class="spirit-nav">
[range] disambiguate const / non-const overloads for Intel compilers and older GCC. [SVN r63998]
2010-07-13 20:31:40 +00:00
<a accesskey="p" href="portability.html"><img src="../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../index.html"><img src="../../../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../index.html"><img src="../../../../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="history_ack.html"><img src="../../../../../doc/src/images/next.png" alt="Next"></a>
Boost.RangeEx merged into Boost.Range [SVN r60897]
2010-03-28 16:08:35 +00:00
</div>
[range] disambiguate const / non-const overloads for Intel compilers and older GCC. [SVN r63998]
2010-07-13 20:31:40 +00:00
<div class="section">
Boost.RangeEx merged into Boost.Range [SVN r60897]
2010-03-28 16:08:35 +00:00
<div class="titlepage"><div><div><h2 class="title" style="clear: both">
<a name="range.faq"></a><a class="link" href="faq.html" title="FAQ">FAQ</a>
</h2></div></div></div>
<p>
1. <span class="emphasis"><em><span class="bold"><strong>Why is there no difference between <code class="computeroutput"><span class="identifier">range_iterator</span><span class="special">&lt;</span><span class="identifier">C</span><span class="special">&gt;::</span><span class="identifier">type</span></code>
and <code class="computeroutput"><span class="identifier">range_const_iterator</span><span class="special">&lt;</span><span class="identifier">C</span><span class="special">&gt;::</span><span class="identifier">type</span></code>
for <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">pair</span><span class="special">&lt;</span><span class="identifier">iterator</span><span class="special">,</span> <span class="identifier">iterator</span><span class="special">&gt;</span></code>?</strong></span></em></span>
</p>
[range] disambiguate const / non-const overloads for Intel compilers and older GCC. [SVN r63998]
2010-07-13 20:31:40 +00:00
<div class="blockquote"><blockquote class="blockquote"><p>
In general it is not possible nor desirable to find a corresponding <code class="computeroutput"><span class="identifier">const_iterator</span></code>. When it is possible to
come up with one, the client might choose to construct a <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">pair</span><span class="special">&lt;</span><span class="identifier">const_iterator</span><span class="special">,</span><span class="identifier">const_iterator</span><span class="special">&gt;</span></code> object.
</p></blockquote></div>
<div class="blockquote"><blockquote class="blockquote"><p>
Note that an <a class="link" href="reference/utilities/iterator_range.html" title="Class iterator_range"><code class="computeroutput"><span class="identifier">iterator_range</span></code></a> is somewhat more
convenient than a <code class="computeroutput"><span class="identifier">pair</span></code> and
that a <a class="link" href="reference/utilities/sub_range.html" title="Class sub_range"><code class="computeroutput"><span class="identifier">sub_range</span></code></a> does propagate const-ness.
</p></blockquote></div>
Boost.RangeEx merged into Boost.Range [SVN r60897]
2010-03-28 16:08:35 +00:00
<p>
2. <span class="emphasis"><em><span class="bold"><strong>Why is there not supplied more types or
more functions?</strong></span></em></span>
</p>
[range] disambiguate const / non-const overloads for Intel compilers and older GCC. [SVN r63998]
2010-07-13 20:31:40 +00:00
<div class="blockquote"><blockquote class="blockquote"><p>
The library has been kept small because its current interface will serve
most purposes. If and when a genuine need arises for more functionality,
it can be implemented.
</p></blockquote></div>
Boost.RangeEx merged into Boost.Range [SVN r60897]
2010-03-28 16:08:35 +00:00
<p>
3. <span class="emphasis"><em><span class="bold"><strong>How should I implement generic algorithms
for ranges?</strong></span></em></span>
</p>
[range] disambiguate const / non-const overloads for Intel compilers and older GCC. [SVN r63998]
2010-07-13 20:31:40 +00:00
<div class="blockquote"><blockquote class="blockquote"><p>
One should always start with a generic algorithm that takes two iterators
(or more) as input. Then use Boost.Range to build handier versions on top
of the iterator based algorithm. Please notice that once the range version
of the algorithm is done, it makes sense not to expose the iterator version
in the public interface.
</p></blockquote></div>
Boost.RangeEx merged into Boost.Range [SVN r60897]
2010-03-28 16:08:35 +00:00
<p>
4. <span class="emphasis"><em><span class="bold"><strong>Why is there no Incrementable Range concept?</strong></span></em></span>
</p>
[range] disambiguate const / non-const overloads for Intel compilers and older GCC. [SVN r63998]
2010-07-13 20:31:40 +00:00
<div class="blockquote"><blockquote class="blockquote"><p>
Even though we speak of incrementable iterators, it would not make much sense
for ranges; for example, we cannot determine the size and emptiness of a
range since we cannot even compare its iterators.
</p></blockquote></div>
<div class="blockquote"><blockquote class="blockquote"><p>
Note also that incrementable iterators are derived from output iterators
and so there exist no output range.
</p></blockquote></div>
Boost.RangeEx merged into Boost.Range [SVN r60897]
2010-03-28 16:08:35 +00:00
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><div class="copyright-footer">Copyright &#169; 2003 -2010 Thorsten Ottosen, Neil Groves<p>
Distributed under the Boost Software License, Version 1.0. (See accompanying
file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
</p>
</div></td>
</tr></table>
<hr>
<div class="spirit-nav">
[range] disambiguate const / non-const overloads for Intel compilers and older GCC. [SVN r63998]
2010-07-13 20:31:40 +00:00
<a accesskey="p" href="portability.html"><img src="../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../index.html"><img src="../../../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../index.html"><img src="../../../../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="history_ack.html"><img src="../../../../../doc/src/images/next.png" alt="Next"></a>
Boost.RangeEx merged into Boost.Range [SVN r60897]
2010-03-28 16:08:35 +00:00
</div>
</body>
</html>
Copy Permalink