1<html> 2<head> 3<meta http-equiv="Content-Type" content="text/html; charset=US-ASCII"> 4<title>Macro BOOST_TTI_TRAIT_HAS_MEMBER_FUNCTION</title> 5<link rel="stylesheet" href="../../../../doc/src/boostbook.css" type="text/css"> 6<meta name="generator" content="DocBook XSL Stylesheets V1.79.1"> 7<link rel="home" href="index.html" title="Chapter 1. The Type Traits Introspection Library"> 8<link rel="up" href="header/boost/tti/has_member_function_hpp.html" title="Header <boost/tti/has_member_function.hpp>"> 9<link rel="prev" href="header/boost/tti/has_member_function_hpp.html" title="Header <boost/tti/has_member_function.hpp>"> 10<link rel="next" href="BOOST_TT_idm46187185705488.html" title="Macro BOOST_TTI_HAS_MEMBER_FUNCTION"> 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="header/boost/tti/has_member_function_hpp.html"><img src="../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="header/boost/tti/has_member_function_hpp.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="BOOST_TT_idm46187185705488.html"><img src="../../../../doc/src/images/next.png" alt="Next"></a> 24</div> 25<div class="refentry"> 26<a name="BOOST_TT_idm46187185709792"></a><div class="titlepage"></div> 27<div class="refnamediv"> 28<h2><span class="refentrytitle">Macro BOOST_TTI_TRAIT_HAS_MEMBER_FUNCTION</span></h2> 29<p>BOOST_TTI_TRAIT_HAS_MEMBER_FUNCTION — Expands to a metafunction which tests whether a member function with a particular name and signature exists. </p> 30</div> 31<h2 xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv-title">Synopsis</h2> 32<div xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: <<a class="link" href="header/boost/tti/has_member_function_hpp.html" title="Header <boost/tti/has_member_function.hpp>">boost/tti/has_member_function.hpp</a>> 33 34</span>BOOST_TTI_TRAIT_HAS_MEMBER_FUNCTION(trait, name)</pre></div> 35<div class="refsect1"> 36<a name="idm45456560483120"></a><h2>Description</h2> 37<p>trait = the name of the metafunction within the tti namespace.</p> 38<p>name = the name of the inner member.</p> 39<p>generates a metafunction called "trait" where 'trait' is the macro parameter.<br> 40 template<class BOOST_TTI_TP_T,class BOOST_TTI_R,class BOOST_TTI_FS,class BOOST_TTI_TAG> 41 struct trait 42 { 43 static const value = unspecified; 44 typedef mpl::bool_<true-or-false> type; 45 }; 46 47 The metafunction types and return: 48 49 BOOST_TTI_TP_T = the enclosing type in which to look for our 'name' 50 OR 51 a pointer to member function as a single type. 52 53 BOOST_TTI_TP_R = (optional) the return type of the member function 54 if the first parameter is the enclosing type. 55 56 BOOST_TTI_TP_FS = (optional) the parameters of the member function as a boost::mpl forward sequence 57 if the first parameter is the enclosing type and the member function parameters 58 are not empty. 59 60 BOOST_TTI_TP_TAG = (optional) a boost::function_types tag to apply to the member function 61 if the first parameter is the enclosing type and a tag is needed. 62 63 returns = 'value' is true if the 'name' exists, 64 with the appropriate member function type, 65 otherwise 'value' is false. 66 </p> 67</div> 68</div> 69<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr> 70<td align="left"></td> 71<td align="right"><div class="copyright-footer">Copyright © 2011-2013 Tropic Software 72 East Inc<p> 73 Distributed under the Boost Software License, Version 1.0. (See accompanying 74 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>) 75 </p> 76</div></td> 77</tr></table> 78<hr> 79<div class="spirit-nav"> 80<a accesskey="p" href="header/boost/tti/has_member_function_hpp.html"><img src="../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="header/boost/tti/has_member_function_hpp.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="BOOST_TT_idm46187185705488.html"><img src="../../../../doc/src/images/next.png" alt="Next"></a> 81</div> 82</body> 83</html> 84
