58 lines
16 KiB
HTML
58 lines
16 KiB
HTML
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "https://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
|
|
<html xmlns="http://www.w3.org/1999/xhtml">
|
|
<head>
|
|
<meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/>
|
|
<meta http-equiv="X-UA-Compatible" content="IE=9"/>
|
|
<meta name="generator" content="Doxygen 1.8.15"/>
|
|
<meta name="viewport" content="width=device-width, initial-scale=1"/>
|
|
<title>Boost.Nowide: boost/nowide/detail/is_string_container.hpp Source File</title>
|
|
<link href="tabs.css" rel="stylesheet" type="text/css"/>
|
|
<script type="text/javascript" src="jquery.js"></script>
|
|
<script type="text/javascript" src="dynsections.js"></script>
|
|
<link href="doxygen.css" rel="stylesheet" type="text/css" />
|
|
</head>
|
|
<body>
|
|
<div id="top"><!-- do not remove this div, it is closed by doxygen! -->
|
|
<div id="titlearea">
|
|
<table cellspacing="0" cellpadding="0">
|
|
<tbody>
|
|
<tr style="height: 56px;">
|
|
<td id="projectalign" style="padding-left: 0.5em;">
|
|
<div id="projectname">Boost.Nowide
|
|
</div>
|
|
</td>
|
|
</tr>
|
|
</tbody>
|
|
</table>
|
|
</div>
|
|
<!-- end header part -->
|
|
<!-- Generated by Doxygen 1.8.15 -->
|
|
<script type="text/javascript" src="menudata.js"></script>
|
|
<script type="text/javascript" src="menu.js"></script>
|
|
<script type="text/javascript">
|
|
/* @license magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3&dn=gpl-2.0.txt GPL-v2 */
|
|
$(function() {
|
|
initMenu('',false,false,'search.php','Search');
|
|
});
|
|
/* @license-end */</script>
|
|
<div id="main-nav"></div>
|
|
<div id="nav-path" class="navpath">
|
|
<ul>
|
|
<li class="navelem"><a class="el" href="dir_1878a3f4746a95c6aad317458cc7ef80.html">boost</a></li><li class="navelem"><a class="el" href="dir_ab65964b154f94b8b1ef0b053897b905.html">nowide</a></li><li class="navelem"><a class="el" href="dir_405d01a12c0ff764c1cdc9793a83df94.html">detail</a></li> </ul>
|
|
</div>
|
|
</div><!-- top -->
|
|
<div class="header">
|
|
<div class="headertitle">
|
|
<div class="title">is_string_container.hpp</div> </div>
|
|
</div><!--header-->
|
|
<div class="contents">
|
|
<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">//</span></div><div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment">// Copyright (c) 2020 Alexander Grund</span></div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment">//</span></div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment">// Distributed under the Boost Software License, Version 1.0. (See</span></div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment">// accompanying file LICENSE or copy at</span></div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment">// http://www.boost.org/LICENSE_1_0.txt)</span></div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment">//</span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="preprocessor">#ifndef BOOST_NOWIDE_DETAIL_IS_STRING_CONTAINER_HPP_INCLUDED</span></div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="preprocessor">#define BOOST_NOWIDE_DETAIL_IS_STRING_CONTAINER_HPP_INCLUDED</span></div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span> </div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="preprocessor">#include <cstddef></span></div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="preprocessor">#include <type_traits></span></div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span> </div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="keyword">namespace </span>boost {</div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="keyword">namespace </span>nowide {</div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span>  <span class="keyword">namespace </span>detail {</div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span>  <span class="keyword">template</span><<span class="keyword">class</span>...></div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span>  <span class="keyword">struct </span>make_void</div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span>  {</div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span>  <span class="keyword">typedef</span> <span class="keywordtype">void</span> type;</div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span>  };</div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span> </div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span>  <span class="keyword">template</span><<span class="keyword">class</span>... Ts></div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span>  <span class="keyword">using</span> void_t = <span class="keyword">typename</span> make_void<Ts...>::type;</div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span> </div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span>  <span class="keyword">template</span><<span class="keyword">typename</span> T></div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span>  <span class="keyword">struct </span>is_char_type : std::false_type</div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span>  {};</div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span>  <span class="keyword">template</span><></div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span>  <span class="keyword">struct </span>is_char_type<char> : std::true_type</div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span>  {};</div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  <span class="keyword">template</span><></div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  <span class="keyword">struct </span>is_char_type<wchar_t> : std::true_type</div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span>  {};</div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span>  <span class="keyword">template</span><></div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  <span class="keyword">struct </span>is_char_type<char16_t> : std::true_type</div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  {};</div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  <span class="keyword">template</span><></div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  <span class="keyword">struct </span>is_char_type<char32_t> : std::true_type</div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  {};</div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <span class="preprocessor">#ifdef __cpp_char8_t</span></div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  <span class="keyword">template</span><></div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  <span class="keyword">struct </span>is_char_type<char8_t> : std::true_type</div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  {};</div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span> </div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  <span class="keyword">template</span><<span class="keyword">typename</span> T></div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  <span class="keyword">struct </span>is_c_string : std::false_type</div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  {};</div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  <span class="keyword">template</span><<span class="keyword">typename</span> T></div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  <span class="keyword">struct </span>is_c_string<const T*> : is_char_type<T></div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  {};</div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span> </div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  <span class="keyword">template</span><<span class="keyword">typename</span> T></div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  <span class="keyword">using</span> const_data_result = decltype(std::declval<const T>().data());</div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  <span class="keyword">template</span><<span class="keyword">typename</span> T></div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  <span class="keyword">using</span> get_data_width =</div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  std::integral_constant<std::size_t, <span class="keyword">sizeof</span>(<span class="keyword">typename</span> std::remove_pointer<const_data_result<T>>::type)>;</div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  <span class="keyword">template</span><<span class="keyword">typename</span> T></div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  <span class="keyword">using</span> size_result = decltype(std::declval<T>().size());</div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  <span class="keyword">template</span><<span class="keyword">typename</span> T></div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  <span class="keyword">using</span> has_narrow_data = std::integral_constant<bool, (get_data_width<T>::value == 1)>;</div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span> </div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  <span class="keyword">template</span><<span class="keyword">typename</span> T, <span class="keywordtype">bool</span> isNarrow, <span class="keyword">typename</span> = <span class="keywordtype">void</span>></div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  <span class="keyword">struct </span>is_string_container : std::false_type</div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  {};</div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  <span class="comment">// clang-format off</span></div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  <span class="keyword">template</span><<span class="keyword">typename</span> T, <span class="keywordtype">bool</span> isNarrow></div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  <span class="keyword">struct </span>is_string_container<T, isNarrow, void_t<decltype(T::npos), size_result<T>, const_data_result<T>>></div><div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  : std::integral_constant<bool,</div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  std::is_integral<decltype(T::npos)>::value</div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  && std::is_integral<size_result<T>>::value</div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  && is_c_string<const_data_result<T>>::value</div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  && isNarrow == has_narrow_data<T>::value></div><div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  {};</div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  <span class="comment">// clang-format on</span></div><div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  <span class="keyword">template</span><<span class="keyword">typename</span> T></div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  <span class="keyword">using</span> requires_narrow_string_container = <span class="keyword">typename</span> std::enable_if<is_string_container<T, true>::value>::type;</div><div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  <span class="keyword">template</span><<span class="keyword">typename</span> T></div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  <span class="keyword">using</span> requires_wide_string_container = <span class="keyword">typename</span> std::enable_if<is_string_container<T, false>::value>::type;</div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span> </div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  <span class="keyword">template</span><<span class="keyword">typename</span> T></div><div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  <span class="keyword">using</span> requires_narrow_char = <span class="keyword">typename</span> std::enable_if<<span class="keyword">sizeof</span>(T) == 1 && is_char_type<T>::value>::type;</div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  <span class="keyword">template</span><<span class="keyword">typename</span> T></div><div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  <span class="keyword">using</span> requires_wide_char = <span class="keyword">typename</span> std::enable_if<(<span class="keyword">sizeof</span>(T) > 1) && is_char_type<T>::value>::type;</div><div class="line"><a name="l00091"></a><span class="lineno"> 91</span> </div><div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  } <span class="comment">// namespace detail</span></div><div class="line"><a name="l00093"></a><span class="lineno"> 93</span> } <span class="comment">// namespace nowide</span></div><div class="line"><a name="l00094"></a><span class="lineno"> 94</span> } <span class="comment">// namespace boost</span></div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span> </div><div class="line"><a name="l00096"></a><span class="lineno"> 96</span> <span class="preprocessor">#endif</span></div></div><!-- fragment --></div><!-- contents -->
|
|
<!-- start footer part -->
|
|
<hr class="footer"/><address class="footer"><small>
|
|
Generated by  <a href="http://www.doxygen.org/index.html">
|
|
<img class="footer" src="doxygen.png" alt="doxygen"/>
|
|
</a> 1.8.15
|
|
</small></address>
|
|
</body>
|
|
</html>
|