117 lines
7.0 KiB
HTML
117 lines
7.0 KiB
HTML
<html>
|
||
<head>
|
||
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
|
||
<title>Visual C++ Debugger Visualizers</title>
|
||
<link rel="stylesheet" href="../../../multiprecision.css" type="text/css">
|
||
<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
|
||
<link rel="home" href="../../../index.html" title="Chapter 1. Boost.Multiprecision">
|
||
<link rel="up" href="../misc.html" title="Miscellaneous Number Types.">
|
||
<link rel="prev" href="debug_adaptor.html" title="debug_adaptor">
|
||
<link rel="next" href="../conversions.html" title="Constructing and Interconverting Between Number Types">
|
||
</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>
|
||
<td align="center"><a href="../../../../../../../libs/libraries.htm">Libraries</a></td>
|
||
<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">
|
||
<a accesskey="p" href="debug_adaptor.html"><img src="../../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../misc.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="../conversions.html"><img src="../../../../../../../doc/src/images/next.png" alt="Next"></a>
|
||
</div>
|
||
<div class="section">
|
||
<div class="titlepage"><div><div><h4 class="title">
|
||
<a name="boost_multiprecision.tut.misc.visualizers"></a><a class="link" href="visualizers.html" title="Visual C++ Debugger Visualizers">Visual C++
|
||
Debugger Visualizers</a>
|
||
</h4></div></div></div>
|
||
<div class="important"><table border="0" summary="Important">
|
||
<tr>
|
||
<td rowspan="2" align="center" valign="top" width="25"><img alt="[Important]" src="../../../../../../../doc/src/images/important.png"></td>
|
||
<th align="left">Important</th>
|
||
</tr>
|
||
<tr><td align="left" valign="top"><p>
|
||
This section is seriously out of date compared to recent Visual C++ releases.
|
||
</p></td></tr>
|
||
</table></div>
|
||
<p>
|
||
Let's face it debugger multiprecision numbers is hard - simply because
|
||
we can't easily inspect the value of the numbers. Visual C++ provides a
|
||
partial solution in the shape of "visualizers" which provide
|
||
improved views of complex data structures, these visualizers need to be
|
||
added to the <code class="computeroutput"><span class="special">[</span><span class="identifier">Visualizer</span><span class="special">]</span></code> section of <code class="computeroutput"><span class="identifier">autoexp</span><span class="special">.</span><span class="identifier">dat</span></code>
|
||
located in the <code class="computeroutput"><span class="identifier">Common7</span><span class="special">/</span><span class="identifier">Packages</span><span class="special">/</span><span class="identifier">Debugger</span></code>
|
||
directory of your Visual Studio installation. The actual visualizer code
|
||
is in the sandbox <a href="https://svn.boost.org/svn/boost/sandbox/boost_docs/subprojects/DebuggerVisualizers/multiprecision.vis.txt" target="_top">here</a>
|
||
- just cut and paste the code into your <code class="computeroutput"><span class="identifier">autoexp</span><span class="special">.</span><span class="identifier">dat</span></code>
|
||
file.
|
||
</p>
|
||
<div class="note"><table border="0" summary="Note">
|
||
<tr>
|
||
<td rowspan="2" align="center" valign="top" width="25"><img alt="[Note]" src="../../../../../../../doc/src/images/note.png"></td>
|
||
<th align="left">Note</th>
|
||
</tr>
|
||
<tr><td align="left" valign="top"><p>
|
||
These visualizers have only been tested with VC10, also given the ability
|
||
of buggy visualizers to crash your Visual C++ debugger, make sure you
|
||
back up <code class="computeroutput"><span class="identifier">autoexp</span><span class="special">.</span><span class="identifier">dat</span></code> file before using these!!
|
||
</p></td></tr>
|
||
</table></div>
|
||
<p>
|
||
The first visualizer provides improved views of <code class="computeroutput"><span class="identifier">debug_adaptor</span></code>:
|
||
</p>
|
||
<p>
|
||
<span class="inlinemediaobject"><img src="../../../../debugger1.png"></span>
|
||
</p>
|
||
<p>
|
||
The next visualizer provides improved views of cpp_int: small numbers are
|
||
displayed as actual values, while larger numbers are displayed as an array
|
||
of hexadecimal parts, with the most significant part first.
|
||
</p>
|
||
<p>
|
||
Here's what it looks like for small values:
|
||
</p>
|
||
<p>
|
||
<span class="inlinemediaobject"><img src="../../../../debugger4.png"></span>
|
||
</p>
|
||
<p>
|
||
And for larger values:
|
||
</p>
|
||
<p>
|
||
<span class="inlinemediaobject"><img src="../../../../debugger5.png"></span>
|
||
</p>
|
||
<p>
|
||
There is also a <code class="computeroutput"><span class="special">~</span><span class="identifier">raw</span></code>
|
||
child member that lets you see the actual members of the class:
|
||
</p>
|
||
<p>
|
||
<span class="inlinemediaobject"><img src="../../../../debugger6.png"></span>
|
||
</p>
|
||
<p>
|
||
The visualizer for <code class="computeroutput"><span class="identifier">cpp_dec_float</span></code>
|
||
shows the first few digits of the value in the preview field, and the full
|
||
array of digits when you expand the view. As before the <code class="computeroutput"><span class="special">~</span><span class="identifier">raw</span></code> child gives you access to the actual
|
||
data members:
|
||
</p>
|
||
<p>
|
||
<span class="inlinemediaobject"><img src="../../../../debugger7.png"></span>
|
||
</p>
|
||
</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 © 2002-2020 John
|
||
Maddock and Christopher Kormanyos<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">
|
||
<a accesskey="p" href="debug_adaptor.html"><img src="../../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../misc.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="../conversions.html"><img src="../../../../../../../doc/src/images/next.png" alt="Next"></a>
|
||
</div>
|
||
</body>
|
||
</html>
|