1<html> 2<head> 3<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> 4<title>Boost.Convert C++ Reference</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. Boost.Convert 2.0"> 8<link rel="up" href="index.html" title="Chapter 1. Boost.Convert 2.0"> 9<link rel="prev" href="boost_convert/acknowledgements.html" title="Acknowledgements"> 10<link rel="next" href="boost/cnv/reference.html" title="Struct template reference"> 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="boost_convert/acknowledgements.html"><img src="../../../../doc/src/images/prev.png" 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34<dd><dl></dl></dd> 35<dt><span class="section"><a href="header/boost/convert/parameters_hpp.html">Header <boost/convert/parameters.hpp></a></span></dt> 36<dt><span class="section"><a href="header/boost/convert/printf_hpp.html">Header <boost/convert/printf.hpp></a></span></dt> 37<dd><dl></dl></dd> 38<dt><span class="section"><a href="header/boost/convert/spirit_hpp.html">Header <boost/convert/spirit.hpp></a></span></dt> 39<dd><dl></dl></dd> 40<dt><span class="section"><a href="header/boost/convert/stream_hpp.html">Header <boost/convert/stream.hpp></a></span></dt> 41<dd><dl></dl></dd> 42<dt><span class="section"><a href="header/boost/convert/strtol_hpp.html">Header <boost/convert/strtol.hpp></a></span></dt> 43<dd><dl></dl></dd> 44<dt><span class="section"><a href="header/boost/make_default_hpp.html">Header <boost/make_default.hpp></a></span></dt> 45<dd><dl></dl></dd> 46</dl></div> 47<div class="section"> 48<div class="titlepage"><div><div><h3 class="title"> 49<a name="header.boost.convert_hpp"></a>Header <<a href="../../../../boost/convert.hpp" target="_top">boost/convert.hpp</a>></h3></div></div></div> 50<pre class="synopsis"><span class="keyword">namespace</span> <span class="identifier">boost</span> <span class="special">{</span> 51 <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <a class="link" href="boost/throw_on_failure.html" title="Global throw_on_failure">throw_on_failure</a><span class="special">;</span> 52 <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> TypeOut<span class="special">,</span> <span class="keyword">typename</span> TypeIn<span class="special">,</span> <span class="keyword">typename</span> Converter<span class="special">></span> 53 <span class="identifier">boost</span><span class="special">::</span><span class="identifier">optional</span><span class="special"><</span> <span class="identifier">TypeOut</span> <span class="special">></span> <a class="link" href="boost/convert_idm45934319980144.html" title="Function template convert"><span class="identifier">convert</span></a><span class="special">(</span><span class="identifier">TypeIn</span> <span class="keyword">const</span> <span class="special">&</span><span class="special">,</span> <span class="identifier">Converter</span> <span class="keyword">const</span> <span class="special">&</span><span class="special">)</span><span class="special">;</span> 54 <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> TypeOut<span class="special">,</span> <span class="keyword">typename</span> TypeIn<span class="special">></span> 55 <span class="identifier">boost</span><span class="special">::</span><span class="identifier">optional</span><span class="special"><</span> <span class="identifier">TypeOut</span> <span class="special">></span> <a class="link" href="boost/convert_idm45934319972896.html" title="Function template convert"><span class="identifier">convert</span></a><span class="special">(</span><span class="identifier">TypeIn</span> <span class="keyword">const</span> <span class="special">&</span><span class="special">)</span><span class="special">;</span> 56 57 <span class="comment">// Boost.Convert non-optional deployment interface. </span> 58 <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> TypeOut<span class="special">,</span> <span class="keyword">typename</span> TypeIn<span class="special">,</span> <span class="keyword">typename</span> Converter<span class="special">></span> 59 <span class="identifier">TypeOut</span> <a name="boost.convert_idm45934308128288"></a><span class="identifier">convert</span><span class="special">(</span><span class="identifier">TypeIn</span> <span class="keyword">const</span> <span class="special">&</span> value_in<span class="special">,</span> <span class="identifier">Converter</span> <span class="keyword">const</span> <span class="special">&</span> converter<span class="special">,</span> 60 <span class="emphasis"><em><span class="identifier">unspecified</span></em></span><span class="special">)</span><span class="special">;</span> 61 <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> TypeOut<span class="special">,</span> <span class="keyword">typename</span> TypeIn<span class="special">,</span> <span class="keyword">typename</span> Converter<span class="special">,</span> 62 <span class="keyword">typename</span> Fallback<span class="special">></span> 63 <span class="identifier">enable_if</span><span class="special"><</span> <span class="identifier">is_convertible</span><span class="special"><</span> <span class="identifier">Fallback</span><span class="special">,</span> <span class="identifier">TypeOut</span> <span class="special">></span><span class="special">,</span> <span class="identifier">TypeOut</span> <span class="special">></span><span class="special">::</span><span class="identifier">type</span> 64 <a name="boost.convert_idm45934308123088"></a><span class="identifier">convert</span><span class="special">(</span><span class="identifier">TypeIn</span> <span class="keyword">const</span> <span class="special">&</span> value_in<span class="special">,</span> <span class="identifier">Converter</span> <span class="keyword">const</span> <span class="special">&</span> converter<span class="special">,</span> 65 <span class="identifier">Fallback</span> <span class="keyword">const</span> <span class="special">&</span> fallback<span class="special">)</span><span class="special">;</span> 66 <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> TypeOut<span class="special">,</span> <span class="keyword">typename</span> TypeIn<span class="special">,</span> <span class="keyword">typename</span> Converter<span class="special">,</span> 67 <span class="keyword">typename</span> Fallback<span class="special">></span> 68 <span class="identifier">enable_if</span><span class="special"><</span> <span class="identifier">cnv</span><span class="special">::</span><span class="identifier">is_fun</span><span class="special"><</span> <span class="identifier">Fallback</span><span class="special">,</span> <span class="identifier">TypeOut</span> <span class="special">></span><span class="special">,</span> <span class="identifier">TypeOut</span> <span class="special">></span><span class="special">::</span><span class="identifier">type</span> 69 <a name="boost.convert_idm45934308117600"></a><span class="identifier">convert</span><span class="special">(</span><span class="identifier">TypeIn</span> <span class="keyword">const</span> <span class="special">&</span> value_in<span class="special">,</span> <span class="identifier">Converter</span> <span class="keyword">const</span> <span class="special">&</span> converter<span class="special">,</span> 70 <span class="identifier">Fallback</span> fallback<span class="special">)</span><span class="special">;</span> 71 <span class="keyword">namespace</span> <span class="identifier">cnv</span> <span class="special">{</span> 72 <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> Converter<span class="special">,</span> <span class="keyword">typename</span> TypeOut<span class="special">,</span> <span class="keyword">typename</span> TypeIn<span class="special">></span> 73 <span class="keyword">struct</span> <a class="link" href="boost/cnv/reference.html" title="Struct template reference">reference</a><span class="special">;</span> 74 75 <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> Converter<span class="special">,</span> <span class="keyword">typename</span> TypeOut<span class="special">></span> 76 <span class="keyword">struct</span> <a class="link" href="boost/cnv/referenc_idm45934320000144.html" title="Struct template reference<Converter, TypeOut, void>">reference</a><span class="special"><</span><span class="identifier">Converter</span><span class="special">,</span> <span class="identifier">TypeOut</span><span class="special">,</span> <span class="keyword">void</span><span class="special">></span><span class="special">;</span> 77 <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> TypeOut<span class="special">,</span> <span class="keyword">typename</span> TypeIn<span class="special">,</span> <span class="keyword">typename</span> Converter<span class="special">></span> 78 <a class="link" href="boost/cnv/reference.html" title="Struct template reference">reference</a><span class="special"><</span> <span class="identifier">Converter</span><span class="special">,</span> <span class="identifier">TypeOut</span><span class="special">,</span> <span class="identifier">TypeIn</span> <span class="special">></span> <a class="link" href="boost/cnv/apply_idm45934319990464.html" title="Function template apply"><span class="identifier">apply</span></a><span class="special">(</span><span class="identifier">Converter</span> <span class="keyword">const</span> <span class="special">&</span><span class="special">)</span><span class="special">;</span> 79 <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> TypeOut<span class="special">,</span> <span class="keyword">typename</span> Converter<span class="special">></span> 80 <a class="link" href="boost/cnv/reference.html" title="Struct template reference">reference</a><span class="special"><</span> <span class="identifier">Converter</span><span class="special">,</span> <span class="identifier">TypeOut</span><span class="special">,</span> <span class="keyword">void</span> <span class="special">></span> <a name="boost.cnv.apply_idm45934319985024"></a><span class="identifier">apply</span><span class="special">(</span><span class="identifier">Converter</span> <span class="keyword">const</span> <span class="special">&</span> cnv<span class="special">)</span><span class="special">;</span> 81 <span class="special">}</span> 82<span class="special">}</span></pre> 83</div> 84</div> 85<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr> 86<td align="left"></td> 87<td align="right"><div class="copyright-footer">Copyright © 2009-2016 Vladimir Batov<p> 88 Distributed under the Boost Software License, Version 1.0. See copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>. 89 </p> 90</div></td> 91</tr></table> 92<hr> 93<div class="spirit-nav"> 94<a accesskey="p" href="boost_convert/acknowledgements.html"><img src="../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="index.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/cnv/reference.html"><img src="../../../../doc/src/images/next.png" alt="Next"></a> 95</div> 96</body> 97</html> 98
