1<html> 2<head> 3<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> 4<title>Chapter 6. Glossary</title> 5<link rel="stylesheet" href="boostbook.css" type="text/css"> 6<meta name="generator" content="DocBook XSL Stylesheets V1.79.1"> 7<link rel="home" href="index.html" title="Boost.Python"> 8<link rel="up" href="index.html" title="Boost.Python"> 9<link rel="prev" href="faq/is_boost_python_thread_aware_com.html" title="Is Boost.Python thread-aware/compatible with multiple interpreters?"> 10</head> 11<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"> 12<table cellpadding="2" width="100%"><tr><td valign="top"><img alt="" width="" height="" src="images/boost.png"></td></tr></table> 13<hr> 14<div class="spirit-nav"> 15<a accesskey="p" href="faq/is_boost_python_thread_aware_com.html"><img src="images/prev.png" alt="Prev"></a><a accesskey="u" href="index.html"><img src="images/up.png" alt="Up"></a><a accesskey="h" href="index.html"><img src="images/home.png" alt="Home"></a> 16</div> 17<div class="chapter"> 18<div class="titlepage"><div><div><h1 class="title"> 19<a name="glossary"></a>Chapter 6. Glossary</h1></div></div></div> 20<div class="variablelist"> 21<p class="title"><b></b></p> 22<dl class="variablelist"> 23<dt><span class="term">arity <a name="arity"></a></span></dt> 24<dd><p> 25 The number of argumnts accepted by a function or member function. Unless 26 otherwise specified, the hidden <code class="computeroutput"><span class="keyword">this</span></code> 27 argument to member functions is not counted when specifying arity. 28 </p></dd> 29<dt><span class="term">ntbs <a name="ntbs"></a></span></dt> 30<dd><p> 31 Null-Terminated Byte String, or 'C'-string. C++ string literals are 32 <span class="bold"><strong>ntbs</strong></span>es. An <span class="bold"><strong>ntbs</strong></span> 33 must never be null. 34 </p></dd> 35<dt><span class="term">raise <a name="raise"></a></span></dt> 36<dd><p> 37 Exceptions in Python are "raised", not "thrown", 38 as they are in C++. When this documentation says that some Python exception 39 is "raised" in the context of C++ code, it means that the corresponding 40 Python exception is set via the <a href="http://www.python.org/doc/current/api/exceptionHandling.html" target="_top">Python/'C' 41 API</a>, and <code class="computeroutput"><span class="identifier">throw_error_already_set</span><span class="special">()</span></code> is called. 42 </p></dd> 43<dt><span class="term">POD <a name="pod"></a></span></dt> 44<dd><p> 45 A technical term from the C++ standard. Short for "Plain Ol'Data": 46 A POD-struct is an aggregate class that has no non-static data members 47 of type pointer to member, non-POD-struct, non-POD-union (or array of 48 such types) or reference, and has no user-defined copy assign- ment operator 49 and no user-defined destructor. Similarly, a POD-union is an aggregate 50 union that has no non-static data members of type pointer to member, 51 non-POD-struct, non-POD-union (or array of such types) or reference, 52 and has no user-defined copy assignment operator and no user-defined 53 destructor. A POD class is a class that is either a POD-struct or a POD-union. 54 An aggregate is an array or a class (clause 9) with no user-declared 55 constructors (12.1), no private or protected non-static data members 56 (clause 11), no base classes (clause 10), and no virtual functions (10.3). 57 </p></dd> 58<dt><span class="term">ODR <a name="odr"></a></span></dt> 59<dd><p> 60 The "One Definition Rule", which says that any entity in a 61 C++ program must have the same definition in all translation units (object 62 files) which make up a program. 63 </p></dd> 64</dl> 65</div> 66</div> 67<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr> 68<td align="left"></td> 69<td align="right"><div class="copyright-footer">Copyright © 2002-2015 David 70 Abrahams, Stefan Seefeld<p> 71 Distributed under the Boost Software License, Version 1.0. (See accompanying 72 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>) 73 </p> 74</div></td> 75</tr></table> 76<hr> 77<div class="spirit-nav"> 78<a accesskey="p" href="faq/is_boost_python_thread_aware_com.html"><img src="images/prev.png" alt="Prev"></a><a accesskey="u" href="index.html"><img src="images/up.png" alt="Up"></a><a accesskey="h" href="index.html"><img src="images/home.png" alt="Home"></a> 79</div> 80</body> 81</html> 82