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<a href="#pub-types">Public 类型</a> |
<a href="#pub-methods">Public 成员函数</a> |
<a href="#pub-attribs">Public 属性</a> |
<a href="#related">相关函数</a> |
<a href="structrapidjson_1_1_generic_string_ref-members.html">所有成员列表</a> </div>
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<div class="title">rapidjson::GenericStringRef< CharType > 模板结构体 参考</div> </div>
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<div class="contents">
<p>Reference to a constant string (not taking a copy)
<a href="structrapidjson_1_1_generic_string_ref.html#details">更多...</a></p>
<p><code>#include <<a class="el" href="document_8h_source.html">document.h</a>></code></p>
<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-types"></a>
Public 类型</h2></td></tr>
<tr class="memitem:aa2a8eccae3d7eb14c30bc21afb7d6fba"><td class="memItemLeft" align="right" valign="top"><a id="aa2a8eccae3d7eb14c30bc21afb7d6fba"></a>
typedef CharType </td><td class="memItemRight" valign="bottom"><a class="el" href="structrapidjson_1_1_generic_string_ref.html#aa2a8eccae3d7eb14c30bc21afb7d6fba">Ch</a></td></tr>
<tr class="memdesc:aa2a8eccae3d7eb14c30bc21afb7d6fba"><td class="mdescLeft"> </td><td class="mdescRight">character type of the string <br /></td></tr>
<tr class="separator:aa2a8eccae3d7eb14c30bc21afb7d6fba"><td class="memSeparator" colspan="2"> </td></tr>
</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-methods"></a>
Public 成员函数</h2></td></tr>
<tr class="memitem:acd4d5ebac2b610ce647356aa52998002"><td class="memTemplParams" colspan="2">template<SizeType N> </td></tr>
<tr class="memitem:acd4d5ebac2b610ce647356aa52998002"><td class="memTemplItemLeft" align="right" valign="top"> </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="structrapidjson_1_1_generic_string_ref.html#acd4d5ebac2b610ce647356aa52998002">GenericStringRef</a> (const CharType(&str)[N]) RAPIDJSON_NOEXCEPT</td></tr>
<tr class="memdesc:acd4d5ebac2b610ce647356aa52998002"><td class="mdescLeft"> </td><td class="mdescRight">Create string reference from <code>const</code> character array <a href="#acd4d5ebac2b610ce647356aa52998002">更多...</a><br /></td></tr>
<tr class="separator:acd4d5ebac2b610ce647356aa52998002"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a29cf407c6aa2313f13dff78d6ce02687"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="structrapidjson_1_1_generic_string_ref.html#a29cf407c6aa2313f13dff78d6ce02687">GenericStringRef</a> (const CharType *str)</td></tr>
<tr class="memdesc:a29cf407c6aa2313f13dff78d6ce02687"><td class="mdescLeft"> </td><td class="mdescRight">Explicitly create string reference from <code>const</code> character pointer <a href="#a29cf407c6aa2313f13dff78d6ce02687">更多...</a><br /></td></tr>
<tr class="separator:a29cf407c6aa2313f13dff78d6ce02687"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ad9eb120a58cee500ff3bd5706779c4e4"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="structrapidjson_1_1_generic_string_ref.html#ad9eb120a58cee500ff3bd5706779c4e4">GenericStringRef</a> (const CharType *str, <a class="el" href="namespacerapidjson.html#a44eb33eaa523e36d466b1ced64b85c84">SizeType</a> len)</td></tr>
<tr class="memdesc:ad9eb120a58cee500ff3bd5706779c4e4"><td class="mdescLeft"> </td><td class="mdescRight">Create constant string reference from pointer and length <a href="#ad9eb120a58cee500ff3bd5706779c4e4">更多...</a><br /></td></tr>
<tr class="separator:ad9eb120a58cee500ff3bd5706779c4e4"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a45345164abed97ea24603d2020b33448"><td class="memItemLeft" align="right" valign="top"><a id="a45345164abed97ea24603d2020b33448"></a>
 </td><td class="memItemRight" valign="bottom"><b>GenericStringRef</b> (const <a class="el" href="structrapidjson_1_1_generic_string_ref.html">GenericStringRef</a> &rhs)</td></tr>
<tr class="separator:a45345164abed97ea24603d2020b33448"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a86d30bb594a41619a7a5ba6c8dcce2bd"><td class="memItemLeft" align="right" valign="top"><a id="a86d30bb594a41619a7a5ba6c8dcce2bd"></a>
 </td><td class="memItemRight" valign="bottom"><a class="el" href="structrapidjson_1_1_generic_string_ref.html#a86d30bb594a41619a7a5ba6c8dcce2bd">operator const Ch *</a> () const</td></tr>
<tr class="memdesc:a86d30bb594a41619a7a5ba6c8dcce2bd"><td class="mdescLeft"> </td><td class="mdescRight">implicit conversion to plain CharType pointer <br /></td></tr>
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Public 属性</h2></td></tr>
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const <a class="el" href="structrapidjson_1_1_generic_string_ref.html#aa2a8eccae3d7eb14c30bc21afb7d6fba">Ch</a> *const </td><td class="memItemRight" valign="bottom"><a class="el" href="structrapidjson_1_1_generic_string_ref.html#a001276ee57cbcbd3c14449045c71e994">s</a></td></tr>
<tr class="memdesc:a001276ee57cbcbd3c14449045c71e994"><td class="mdescLeft"> </td><td class="mdescRight">plain CharType pointer <br /></td></tr>
<tr class="separator:a001276ee57cbcbd3c14449045c71e994"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ae223535ec20edf0c1db44a40b7735111"><td class="memItemLeft" align="right" valign="top"><a id="ae223535ec20edf0c1db44a40b7735111"></a>
const <a class="el" href="namespacerapidjson.html#a44eb33eaa523e36d466b1ced64b85c84">SizeType</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="structrapidjson_1_1_generic_string_ref.html#ae223535ec20edf0c1db44a40b7735111">length</a></td></tr>
<tr class="memdesc:ae223535ec20edf0c1db44a40b7735111"><td class="mdescLeft"> </td><td class="mdescRight">length of the string (excluding the trailing NULL terminator) <br /></td></tr>
<tr class="separator:ae223535ec20edf0c1db44a40b7735111"><td class="memSeparator" colspan="2"> </td></tr>
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相关函数</h2></td></tr>
<tr><td class="ititle" colspan="2"><p>(请注意: 这些不是成员函数.) </p>
</td></tr>
<tr class="memitem:aa6b9fd9f6aa49405a574c362ba9af6b5"><td class="memTemplParams" colspan="2">template<typename CharType > </td></tr>
<tr class="memitem:aa6b9fd9f6aa49405a574c362ba9af6b5"><td class="memTemplItemLeft" align="right" valign="top"><a class="el" href="structrapidjson_1_1_generic_string_ref.html">GenericStringRef</a>< CharType > </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="structrapidjson_1_1_generic_string_ref.html#aa6b9fd9f6aa49405a574c362ba9af6b5">StringRef</a> (const CharType *str)</td></tr>
<tr class="memdesc:aa6b9fd9f6aa49405a574c362ba9af6b5"><td class="mdescLeft"> </td><td class="mdescRight">Mark a character pointer as constant string <a href="#aa6b9fd9f6aa49405a574c362ba9af6b5">更多...</a><br /></td></tr>
<tr class="separator:aa6b9fd9f6aa49405a574c362ba9af6b5"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a578c51ab574a50a9c760b9da7c7562f2"><td class="memTemplParams" colspan="2">template<typename CharType > </td></tr>
<tr class="memitem:a578c51ab574a50a9c760b9da7c7562f2"><td class="memTemplItemLeft" align="right" valign="top"><a class="el" href="structrapidjson_1_1_generic_string_ref.html">GenericStringRef</a>< CharType > </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="structrapidjson_1_1_generic_string_ref.html#a578c51ab574a50a9c760b9da7c7562f2">StringRef</a> (const CharType *str, size_t <a class="el" href="structrapidjson_1_1_generic_string_ref.html#ae223535ec20edf0c1db44a40b7735111">length</a>)</td></tr>
<tr class="memdesc:a578c51ab574a50a9c760b9da7c7562f2"><td class="mdescLeft"> </td><td class="mdescRight">Mark a character pointer as constant string <a href="#a578c51ab574a50a9c760b9da7c7562f2">更多...</a><br /></td></tr>
<tr class="separator:a578c51ab574a50a9c760b9da7c7562f2"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:af94951529a5d51e8c4e6e770bb707c1f"><td class="memTemplParams" colspan="2">template<typename CharType > </td></tr>
<tr class="memitem:af94951529a5d51e8c4e6e770bb707c1f"><td class="memTemplItemLeft" align="right" valign="top"><a class="el" href="structrapidjson_1_1_generic_string_ref.html">GenericStringRef</a>< CharType > </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="structrapidjson_1_1_generic_string_ref.html#af94951529a5d51e8c4e6e770bb707c1f">StringRef</a> (const std::basic_string< CharType > &str)</td></tr>
<tr class="memdesc:af94951529a5d51e8c4e6e770bb707c1f"><td class="mdescLeft"> </td><td class="mdescRight">Mark a string object as constant string <a href="#af94951529a5d51e8c4e6e770bb707c1f">更多...</a><br /></td></tr>
<tr class="separator:af94951529a5d51e8c4e6e770bb707c1f"><td class="memSeparator" colspan="2"> </td></tr>
</table>
<a name="details" id="details"></a><h2 class="groupheader">详细描述</h2>
<div class="textblock"><h3>template<typename CharType><br />
struct rapidjson::GenericStringRef< CharType ></h3>
<p>Reference to a constant string (not taking a copy) </p>
<dl class="tparams"><dt>模板参数</dt><dd>
<table class="tparams">
<tr><td class="paramname">CharType</td><td>character type of the string</td></tr>
</table>
</dd>
</dl>
<p>This helper class is used to automatically infer constant string references for string literals, especially from <code>const</code> <b></b>(!) character arrays.</p>
<p>The main use is for creating JSON string values without copying the source string via an <a class="el" href="md_doc_dom_8zh-cn.html#Allocator">分配器</a>. This requires that the referenced string pointers have a sufficient lifetime, which exceeds the lifetime of the associated <a class="el" href="classrapidjson_1_1_generic_value.html" title="Represents a JSON value. Use Value for UTF8 encoding and default allocator. ">GenericValue</a>.</p>
<p><b>Example</b> </p><div class="fragment"><div class="line"><a class="code" href="namespacerapidjson.html#aa65fc9fb381b2cbc54f98673eadd6505">Value</a> v(<span class="stringliteral">"foo"</span>); <span class="comment">// ok, no need to copy & calculate length</span></div><div class="line"><span class="keyword">const</span> <span class="keywordtype">char</span> foo[] = <span class="stringliteral">"foo"</span>;</div><div class="line">v.SetString(foo); <span class="comment">// ok</span></div><div class="line"></div><div class="line"><span class="keyword">const</span> <span class="keywordtype">char</span>* bar = foo;</div><div class="line"><span class="comment">// Value x(bar); // not ok, can't rely on bar's lifetime</span></div><div class="line"><a class="code" href="namespacerapidjson.html#aa65fc9fb381b2cbc54f98673eadd6505">Value</a> x(<a class="code" href="structrapidjson_1_1_generic_string_ref.html#aa6b9fd9f6aa49405a574c362ba9af6b5">StringRef</a>(bar)); <span class="comment">// lifetime explicitly guaranteed by user</span></div><div class="line"><a class="code" href="namespacerapidjson.html#aa65fc9fb381b2cbc54f98673eadd6505">Value</a> y(<a class="code" href="structrapidjson_1_1_generic_string_ref.html#aa6b9fd9f6aa49405a574c362ba9af6b5">StringRef</a>(bar, 3)); <span class="comment">// ok, explicitly pass length</span></div></div><!-- fragment --><dl class="section see"><dt>参见</dt><dd><a class="el" href="structrapidjson_1_1_generic_string_ref.html#aa6b9fd9f6aa49405a574c362ba9af6b5" title="Mark a character pointer as constant string ">StringRef</a>, <a class="el" href="classrapidjson_1_1_generic_value.html#afb91480cc6242ca96ffc603e649c319f" title="Set this value as a string without copying source string. ">GenericValue::SetString</a> </dd></dl>
</div><h2 class="groupheader">构造及析构函数说明</h2>
<a id="acd4d5ebac2b610ce647356aa52998002"></a>
<h2 class="memtitle"><span class="permalink"><a href="#acd4d5ebac2b610ce647356aa52998002">◆ </a></span>GenericStringRef() <span class="overload">[1/3]</span></h2>
<div class="memitem">
<div class="memproto">
<div class="memtemplate">
template<typename CharType> </div>
<div class="memtemplate">
template<SizeType N> </div>
<table class="mlabels">
<tr>
<td class="mlabels-left">
<table class="memname">
<tr>
<td class="memname"><a class="el" href="structrapidjson_1_1_generic_string_ref.html">rapidjson::GenericStringRef</a>< CharType >::<a class="el" href="structrapidjson_1_1_generic_string_ref.html">GenericStringRef</a> </td>
<td>(</td>
<td class="paramtype">const CharType(&) </td>
<td class="paramname"><em>str</em>[N]</td><td>)</td>
<td></td>
</tr>
</table>
</td>
<td class="mlabels-right">
<span class="mlabels"><span class="mlabel">inline</span></span> </td>
</tr>
</table>
</div><div class="memdoc">
<p>Create string reference from <code>const</code> character array </p>
<p>This constructor implicitly creates a constant string reference from a <code>const</code> character array. It has better performance than <a class="el" href="structrapidjson_1_1_generic_string_ref.html#aa6b9fd9f6aa49405a574c362ba9af6b5">StringRef(const CharType*)</a> by inferring the string <a class="el" href="structrapidjson_1_1_generic_string_ref.html#ae223535ec20edf0c1db44a40b7735111">length</a> from the array length, and also supports strings containing null characters.</p>
<dl class="tparams"><dt>模板参数</dt><dd>
<table class="tparams">
<tr><td class="paramname">N</td><td>length of the string, automatically inferred</td></tr>
</table>
</dd>
</dl>
<dl class="params"><dt>参数</dt><dd>
<table class="params">
<tr><td class="paramname">str</td><td>Constant character array, lifetime assumed to be longer than the use of the string in e.g. a <a class="el" href="classrapidjson_1_1_generic_value.html" title="Represents a JSON value. Use Value for UTF8 encoding and default allocator. ">GenericValue</a></td></tr>
</table>
</dd>
</dl>
<dl class="section post"><dt>后置条件</dt><dd><a class="el" href="structrapidjson_1_1_generic_string_ref.html#a001276ee57cbcbd3c14449045c71e994">s</a> == str</dd></dl>
<dl class="section note"><dt>注解</dt><dd>Constant complexity. </dd>
<dd>
There is a hidden, private overload to disallow references to non-const character arrays to be created via this constructor. By this, e.g. function-scope arrays used to be filled via <code>snprintf</code> are excluded from consideration. In such cases, the referenced string should be <b>copied</b> to the <a class="el" href="classrapidjson_1_1_generic_value.html" title="Represents a JSON value. Use Value for UTF8 encoding and default allocator. ">GenericValue</a> instead. </dd></dl>
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<td class="memname"><a class="el" href="structrapidjson_1_1_generic_string_ref.html">rapidjson::GenericStringRef</a>< CharType >::<a class="el" href="structrapidjson_1_1_generic_string_ref.html">GenericStringRef</a> </td>
<td>(</td>
<td class="paramtype">const CharType * </td>
<td class="paramname"><em>str</em></td><td>)</td>
<td></td>
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<span class="mlabels"><span class="mlabel">inline</span><span class="mlabel">explicit</span></span> </td>
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<p>Explicitly create string reference from <code>const</code> character pointer </p>
<p>This constructor can be used to <b>explicitly</b> create a reference to a constant string pointer.</p>
<dl class="section see"><dt>参见</dt><dd><a class="el" href="structrapidjson_1_1_generic_string_ref.html#aa6b9fd9f6aa49405a574c362ba9af6b5" title="Mark a character pointer as constant string ">StringRef(const CharType*)</a></dd></dl>
<dl class="params"><dt>参数</dt><dd>
<table class="params">
<tr><td class="paramname">str</td><td>Constant character pointer, lifetime assumed to be longer than the use of the string in e.g. a <a class="el" href="classrapidjson_1_1_generic_value.html" title="Represents a JSON value. Use Value for UTF8 encoding and default allocator. ">GenericValue</a></td></tr>
</table>
</dd>
</dl>
<dl class="section post"><dt>后置条件</dt><dd><a class="el" href="structrapidjson_1_1_generic_string_ref.html#a001276ee57cbcbd3c14449045c71e994">s</a> == str</dd></dl>
<dl class="section note"><dt>注解</dt><dd>There is a hidden, private overload to disallow references to non-const character arrays to be created via this constructor. By this, e.g. function-scope arrays used to be filled via <code>snprintf</code> are excluded from consideration. In such cases, the referenced string should be <b>copied</b> to the <a class="el" href="classrapidjson_1_1_generic_value.html" title="Represents a JSON value. Use Value for UTF8 encoding and default allocator. ">GenericValue</a> instead. </dd></dl>
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<td class="memname"><a class="el" href="structrapidjson_1_1_generic_string_ref.html">rapidjson::GenericStringRef</a>< CharType >::<a class="el" href="structrapidjson_1_1_generic_string_ref.html">GenericStringRef</a> </td>
<td>(</td>
<td class="paramtype">const CharType * </td>
<td class="paramname"><em>str</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="namespacerapidjson.html#a44eb33eaa523e36d466b1ced64b85c84">SizeType</a> </td>
<td class="paramname"><em>len</em> </td>
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<p>Create constant string reference from pointer and length </p>
<dl class="params"><dt>参数</dt><dd>
<table class="params">
<tr><td class="paramname">str</td><td>constant string, lifetime assumed to be longer than the use of the string in e.g. a <a class="el" href="classrapidjson_1_1_generic_value.html" title="Represents a JSON value. Use Value for UTF8 encoding and default allocator. ">GenericValue</a> </td></tr>
<tr><td class="paramname">len</td><td>length of the string, excluding the trailing NULL terminator</td></tr>
</table>
</dd>
</dl>
<dl class="section post"><dt>后置条件</dt><dd><a class="el" href="structrapidjson_1_1_generic_string_ref.html#a001276ee57cbcbd3c14449045c71e994">s</a> == str && <a class="el" href="structrapidjson_1_1_generic_string_ref.html#ae223535ec20edf0c1db44a40b7735111">length</a> == len </dd></dl>
<dl class="section note"><dt>注解</dt><dd>Constant complexity. </dd></dl>
</div>
</div>
<h2 class="groupheader">友元及相关函数文档</h2>
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<td class="memname"><a class="el" href="structrapidjson_1_1_generic_string_ref.html">GenericStringRef</a>< CharType > StringRef </td>
<td>(</td>
<td class="paramtype">const CharType * </td>
<td class="paramname"><em>str</em></td><td>)</td>
<td></td>
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<p>Mark a character pointer as constant string </p>
<p>Mark a plain character pointer as a "string literal". This function can be used to avoid copying a character string to be referenced as a value in a JSON <a class="el" href="classrapidjson_1_1_generic_value.html" title="Represents a JSON value. Use Value for UTF8 encoding and default allocator. ">GenericValue</a> object, if the string's lifetime is known to be valid long enough. </p><dl class="tparams"><dt>模板参数</dt><dd>
<table class="tparams">
<tr><td class="paramname">CharType</td><td>Character type of the string </td></tr>
</table>
</dd>
</dl>
<dl class="params"><dt>参数</dt><dd>
<table class="params">
<tr><td class="paramname">str</td><td>Constant string, lifetime assumed to be longer than the use of the string in e.g. a <a class="el" href="classrapidjson_1_1_generic_value.html" title="Represents a JSON value. Use Value for UTF8 encoding and default allocator. ">GenericValue</a> </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>返回</dt><dd><a class="el" href="structrapidjson_1_1_generic_string_ref.html" title="Reference to a constant string (not taking a copy) ">GenericStringRef</a> string reference object</dd></dl>
<dl class="section see"><dt>参见</dt><dd><a class="el" href="classrapidjson_1_1_generic_value.html#a65bfc3073fa80ee5eba8e985abe2f941" title="Constructor for constant string (i.e. do not make a copy of string) ">GenericValue::GenericValue(StringRefType)</a>, <a class="el" href="classrapidjson_1_1_generic_value.html#aecc9d0a6aafe31f4fdf9f6e75e5f089c" title="Assignment of constant string reference (no copy) ">GenericValue::operator=(StringRefType)</a>, <a class="el" href="classrapidjson_1_1_generic_value.html#aabb538578a3c1e60c86cda32d062bc1c" title="Set this value as a string without copying source string. ">GenericValue::SetString(StringRefType)</a>, <a class="el" href="classrapidjson_1_1_generic_value.html#a41946915cb219a684f6ffc9341efee22" title="Append a constant string reference at the end of the array. ">GenericValue::PushBack(StringRefType, Allocator&)</a>, <a class="el" href="classrapidjson_1_1_generic_value.html#ab018d734d189532b27943bc45776ba68" title="Add a member (name-value pair) to the object. ">GenericValue::AddMember</a> </dd></dl>
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<td class="memname"><a class="el" href="structrapidjson_1_1_generic_string_ref.html">GenericStringRef</a>< CharType > StringRef </td>
<td>(</td>
<td class="paramtype">const CharType * </td>
<td class="paramname"><em>str</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">size_t </td>
<td class="paramname"><em>length</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
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<p>Mark a character pointer as constant string </p>
<p>Mark a plain character pointer as a "string literal". This function can be used to avoid copying a character string to be referenced as a value in a JSON <a class="el" href="classrapidjson_1_1_generic_value.html" title="Represents a JSON value. Use Value for UTF8 encoding and default allocator. ">GenericValue</a> object, if the string's lifetime is known to be valid long enough.</p>
<p>This version has better performance with supplied length, and also supports string containing null characters.</p>
<dl class="tparams"><dt>模板参数</dt><dd>
<table class="tparams">
<tr><td class="paramname">CharType</td><td>character type of the string </td></tr>
</table>
</dd>
</dl>
<dl class="params"><dt>参数</dt><dd>
<table class="params">
<tr><td class="paramname">str</td><td>Constant string, lifetime assumed to be longer than the use of the string in e.g. a <a class="el" href="classrapidjson_1_1_generic_value.html" title="Represents a JSON value. Use Value for UTF8 encoding and default allocator. ">GenericValue</a> </td></tr>
<tr><td class="paramname">length</td><td>The length of source string. </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>返回</dt><dd><a class="el" href="structrapidjson_1_1_generic_string_ref.html" title="Reference to a constant string (not taking a copy) ">GenericStringRef</a> string reference object </dd></dl>
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<td class="memname"><a class="el" href="structrapidjson_1_1_generic_string_ref.html">GenericStringRef</a>< CharType > StringRef </td>
<td>(</td>
<td class="paramtype">const std::basic_string< CharType > & </td>
<td class="paramname"><em>str</em></td><td>)</td>
<td></td>
</tr>
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<p>Mark a string object as constant string </p>
<p>Mark a string object (e.g. <code>std::string</code>) as a "string literal". This function can be used to avoid copying a string to be referenced as a value in a JSON <a class="el" href="classrapidjson_1_1_generic_value.html" title="Represents a JSON value. Use Value for UTF8 encoding and default allocator. ">GenericValue</a> object, if the string's lifetime is known to be valid long enough.</p>
<dl class="tparams"><dt>模板参数</dt><dd>
<table class="tparams">
<tr><td class="paramname">CharType</td><td>character type of the string </td></tr>
</table>
</dd>
</dl>
<dl class="params"><dt>参数</dt><dd>
<table class="params">
<tr><td class="paramname">str</td><td>Constant string, lifetime assumed to be longer than the use of the string in e.g. a <a class="el" href="classrapidjson_1_1_generic_value.html" title="Represents a JSON value. Use Value for UTF8 encoding and default allocator. ">GenericValue</a> </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>返回</dt><dd><a class="el" href="structrapidjson_1_1_generic_string_ref.html" title="Reference to a constant string (not taking a copy) ">GenericStringRef</a> string reference object</dd></dl>
<dl class="section note"><dt>注解</dt><dd>Requires the definition of the preprocessor symbol <a class="el" href="group___r_a_p_i_d_j_s_o_n___c_o_n_f_i_g.html#ga2f2eef0ee4477f3fe5874703a66e997f">RAPIDJSON_HAS_STDSTRING</a>. </dd></dl>
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