1<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> 2 3<html> 4<head> 5 <meta http-equiv="Content-Language" content="en-us"> 6 <meta http-equiv="Content-Type" content="text/html; charset=us-ascii"> 7 8 <title>Assignable</title> 9</head> 10 11<body bgcolor="#FFFFFF" link="#0000EE" text="#000000" vlink="#551A8B" alink= 12"#FF0000"> 13 <img src="../../boost.png" alt="C++ Boost" width="277" height= 14 "86"><br clear="none"> 15 16 <h1>Assignable</h1> 17 18 <h3>Description</h3> 19 20 <p>A type is Assignable if it is possible to assign one object of the type 21 to another object of that type.</p> 22 23 <h3>Notation</h3> 24 25 <table summary=""> 26 <tr> 27 <td valign="top"><tt>T</tt></td> 28 29 <td valign="top">is type that is a model of Assignable</td> 30 </tr> 31 32 <tr> 33 <td valign="top"><tt>t</tt></td> 34 35 <td valign="top">is an object of type <tt>T</tt></td> 36 </tr> 37 38 <tr> 39 <td valign="top"><tt>u</tt></td> 40 41 <td valign="top">is an object of type <tt>T</tt> or possibly <tt>const 42 T</tt></td> 43 </tr> 44 </table> 45 46 <h3>Definitions</h3> 47 48 <h3>Valid expressions</h3> 49 50 <table border summary=""> 51 <tr> 52 <th>Name</th> 53 54 <th>Expression</th> 55 56 <th>Return type</th> 57 58 <th>Semantics</th> 59 </tr> 60 61 <tr> 62 <td valign="top">Assignment</td> 63 64 <td valign="top"><tt>t = u</tt></td> 65 66 <td valign="top"><tt>T&</tt></td> 67 68 <td valign="top"><tt>t</tt> is equivalent to <tt>u</tt></td> 69 </tr> 70 </table> 71 72 <h3>Models</h3> 73 74 <ul> 75 <li><tt>int</tt></li> 76 77 <li><tt>std::pair</tt></li> 78 </ul> 79 80 <h3>See also</h3> 81 82 <p><a href= 83 "http://www.sgi.com/tech/stl/DefaultConstructible.html">DefaultConstructible</a> 84 and <a href="./CopyConstructible.html">CopyConstructible</a><br></p> 85 <hr> 86 87 <p><a href="http://validator.w3.org/check?uri=referer"><img border="0" src= 88 "../../doc/images/valid-html401.png" alt="Valid HTML 4.01 Transitional" 89 height="31" width="88"></a></p> 90 91 <p>Revised 92 <!--webbot bot="Timestamp" s-type="EDITED" s-format="%d %B, %Y" startspan -->05 December, 2006<!--webbot bot="Timestamp" endspan i-checksum="38516" --></p> 93 94 <table summary=""> 95 <tr valign="top"> 96 <td nowrap><i>Copyright © 2000</i></td> 97 98 <td><i><a href="http://www.lsc.nd.edu/~jsiek">Jeremy Siek</a>, Univ.of 99 Notre Dame (<a href= 100 "mailto:jsiek@lsc.nd.edu">jsiek@lsc.nd.edu</a>)</i></td> 101 </tr> 102 </table> 103 104 <p><i>Distributed under the Boost Software License, Version 1.0. (See 105 accompanying file <a href="../../LICENSE_1_0.txt">LICENSE_1_0.txt</a> or 106 copy at <a href= 107 "http://www.boost.org/LICENSE_1_0.txt">http://www.boost.org/LICENSE_1_0.txt</a>)</i></p> 108</body> 109</html> 110
