projects / ceph.git / blame
| Commit | Line | Data |
|---|---|---|
| 7c673cae FG |
1 | <html> |
| 2 | <head> | |
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=US-ASCII"> | |
| 4 | <title>typeinfo</title> | |
| 5 | <link rel="stylesheet" href="../../math.css" type="text/css"> | |
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.77.1"> | |
| 7 | <link rel="home" href="../../index.html" title="Math Toolkit 2.5.1"> | |
| 8 | <link rel="up" href="../float128.html" title="Implementation of Float128 type"> | |
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| 10 | <link rel="next" href="../../constants.html" title="Chapter 4. Mathematical Constants"> | |
| 11 | </head> | |
| 12 | <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"> | |
| 13 | <table cellpadding="2" width="100%"><tr> | |
| 14 | <td valign="top"><img alt="Boost C++ Libraries" width="277" height="86" src="../../../../../../boost.png"></td> | |
| 15 | <td align="center"><a href="../../../../../../index.html">Home</a></td> | |
| 16 | <td align="center"><a href="../../../../../../libs/libraries.htm">Libraries</a></td> | |
| 17 | <td align="center"><a href="http://www.boost.org/users/people.html">People</a></td> | |
| 18 | <td align="center"><a href="http://www.boost.org/users/faq.html">FAQ</a></td> | |
| 19 | <td align="center"><a href="../../../../../../more/index.htm">More</a></td> | |
| 20 | </tr></table> | |
| 21 | <hr> | |
| 22 | <div class="spirit-nav"> | |
| 23 | <a accesskey="p" href="exp_function.html"><img src="../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../float128.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="../../constants.html"><img src="../../../../../../doc/src/images/next.png" alt="Next"></a> | |
| 24 | </div> | |
| 25 | <div class="section"> | |
| 26 | <div class="titlepage"><div><div><h3 class="title"> | |
| 27 | <a name="math_toolkit.float128.typeinfo"></a><a class="link" href="typeinfo.html" title="typeinfo"><code class="computeroutput"><span class="identifier">typeinfo</span></code></a> | |
| 28 | </h3></div></div></div> | |
| 29 | <p> | |
| 30 | For GCC 4.8.1 it was not yet possible to use <code class="computeroutput"><span class="identifier">typeinfo</span></code> | |
| 31 | for <code class="computeroutput"><span class="identifier">float_128</span></code> on GCC: see | |
| 32 | <a href="http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43622" target="_top">GCC 43622</a>. | |
| 33 | </p> | |
| 34 | <p> | |
| 35 | So this code (to display the mangled name) failed to link <code class="computeroutput"><span class="identifier">undefined</span> | |
| 36 | <span class="identifier">reference</span> <span class="identifier">to</span> | |
| 37 | <span class="identifier">typeinfo</span> <span class="keyword">for</span> | |
| 38 | <span class="identifier">__float128</span></code> | |
| 39 | </p> | |
| 40 | <pre class="programlisting"><span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="keyword">typeid</span><span class="special">(</span><span class="identifier">boost</span><span class="special">::</span><span class="identifier">float128_t</span><span class="special">).</span><span class="identifier">name</span><span class="special">()</span> <span class="special"><<</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span> | |
| 41 | </pre> | |
| 42 | <p> | |
| 43 | This prevent using the existing tests for Boost.Math distributions, (unless | |
| 44 | a few lines are commented out) and if a MACRO BOOST_MATH_INSTRUMENT controlling | |
| 45 | them is defined then some diagnostic displays in Boost.Math will not work. | |
| 46 | </p> | |
| 47 | <p> | |
| 48 | However this was only used for display purposes and could be commented out | |
| 49 | until this was fixed in GCC 5. | |
| 50 | </p> | |
| 51 | <div class="tip"><table border="0" summary="Tip"> | |
| 52 | <tr> | |
| 53 | <td rowspan="2" align="center" valign="top" width="25"><img alt="[Tip]" src="../../../../../../doc/src/images/tip.png"></td> | |
| 54 | <th align="left">Tip</th> | |
| 55 | </tr> | |
| 56 | <tr><td align="left" valign="top"><p> | |
| 57 | Not all managed names can be <span class="bold"><strong>displayed</strong></span> | |
| 58 | using <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span></code>. | |
| 59 | </p></td></tr> | |
| 60 | </table></div> | |
| 61 | </div> | |
| 62 | <table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr> | |
| 63 | <td align="left"></td> | |
| 64 | <td align="right"><div class="copyright-footer">Copyright © 2006-2010, 2012-2014 Nikhar Agrawal, | |
| 65 | Anton Bikineev, Paul A. Bristow, Marco Guazzone, Christopher Kormanyos, Hubert | |
| 66 | Holin, Bruno Lalande, John Maddock, Jeremy Murphy, Johan Råde, Gautam Sewani, | |
| 67 | Benjamin Sobotta, Thijs van den Berg, Daryle Walker and Xiaogang Zhang<p> | |
| 68 | Distributed under the Boost Software License, Version 1.0. (See accompanying | |
| 69 | 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>) | |
| 70 | </p> | |
| 71 | </div></td> | |
| 72 | </tr></table> | |
| 73 | <hr> | |
| 74 | <div class="spirit-nav"> | |
| 75 | <a accesskey="p" href="exp_function.html"><img src="../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../float128.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="../../constants.html"><img src="../../../../../../doc/src/images/next.png" alt="Next"></a> | |
| 76 | </div> | |
| 77 | </body> | |
| 78 | </html> |