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 <span id="projectnumber">4.8.1.1</span>
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<a href="#pub-methods">Public Member Functions</a> |
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<div class="title">StringPiece Class Reference</div> </div>
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<p>A string-like object that points to a sized piece of memory.
<a href="classStringPiece.html#details">More...</a></p>
<p><code>#include <<a class="el" href="stringpiece_8h_source.html">stringpiece.h</a>></code></p>
<div class="dynheader">
Inheritance diagram for StringPiece:</div>
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<img src="classStringPiece.png" usemap="#StringPiece_map" alt=""/>
<map id="StringPiece_map" name="StringPiece_map">
<area href="classUMemory.html" title="UMemory is the common ICU base class." alt="UMemory" shape="rect" coords="0,0,77,24"/>
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<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2><a name="pub-methods"></a>
Public Member Functions</h2></td></tr>
<tr class="memitem:a0f45b54fa594663333d1ac3c8d7c8997"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classStringPiece.html#a0f45b54fa594663333d1ac3c8d7c8997">StringPiece</a> ()</td></tr>
<tr class="memdesc:a0f45b54fa594663333d1ac3c8d7c8997"><td class="mdescLeft"> </td><td class="mdescRight">Default constructor, creates an empty <a class="el" href="classStringPiece.html" title="A string-like object that points to a sized piece of memory.">StringPiece</a>. <a href="#a0f45b54fa594663333d1ac3c8d7c8997"></a><br/></td></tr>
<tr class="memitem:a1f2ea703262cb6af2948bafb29b7325e"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classStringPiece.html#a1f2ea703262cb6af2948bafb29b7325e">StringPiece</a> (const char *str)</td></tr>
<tr class="memdesc:a1f2ea703262cb6af2948bafb29b7325e"><td class="mdescLeft"> </td><td class="mdescRight">Constructs from a NUL-terminated const char * pointer. <a href="#a1f2ea703262cb6af2948bafb29b7325e"></a><br/></td></tr>
<tr class="memitem:a1ebd684e27ba92ffdc17e9870355c56c"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classStringPiece.html#a1ebd684e27ba92ffdc17e9870355c56c">StringPiece</a> (const char *offset, <a class="el" href="pwin32_8h.html#ab1967d8591af1a4e48c37fd2b0f184d0">int32_t</a> len)</td></tr>
<tr class="memdesc:a1ebd684e27ba92ffdc17e9870355c56c"><td class="mdescLeft"> </td><td class="mdescRight">Constructs from a const char * pointer and a specified length. <a href="#a1ebd684e27ba92ffdc17e9870355c56c"></a><br/></td></tr>
<tr class="memitem:a6066a9bef281ff60b010610c15f71597"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classStringPiece.html#a6066a9bef281ff60b010610c15f71597">StringPiece</a> (const <a class="el" href="classStringPiece.html">StringPiece</a> &x, <a class="el" href="pwin32_8h.html#ab1967d8591af1a4e48c37fd2b0f184d0">int32_t</a> pos)</td></tr>
<tr class="memdesc:a6066a9bef281ff60b010610c15f71597"><td class="mdescLeft"> </td><td class="mdescRight">Substring of another <a class="el" href="classStringPiece.html" title="A string-like object that points to a sized piece of memory.">StringPiece</a>. <a href="#a6066a9bef281ff60b010610c15f71597"></a><br/></td></tr>
<tr class="memitem:a4d6d3a0ad4cee017317272cd3a515174"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classStringPiece.html#a4d6d3a0ad4cee017317272cd3a515174">StringPiece</a> (const <a class="el" href="classStringPiece.html">StringPiece</a> &x, <a class="el" href="pwin32_8h.html#ab1967d8591af1a4e48c37fd2b0f184d0">int32_t</a> pos, <a class="el" href="pwin32_8h.html#ab1967d8591af1a4e48c37fd2b0f184d0">int32_t</a> len)</td></tr>
<tr class="memdesc:a4d6d3a0ad4cee017317272cd3a515174"><td class="mdescLeft"> </td><td class="mdescRight">Substring of another <a class="el" href="classStringPiece.html" title="A string-like object that points to a sized piece of memory.">StringPiece</a>. <a href="#a4d6d3a0ad4cee017317272cd3a515174"></a><br/></td></tr>
<tr class="memitem:a8c0f2264485f90b1d60aab587cab352f"><td class="memItemLeft" align="right" valign="top">const char * </td><td class="memItemRight" valign="bottom"><a class="el" href="classStringPiece.html#a8c0f2264485f90b1d60aab587cab352f">data</a> () const </td></tr>
<tr class="memdesc:a8c0f2264485f90b1d60aab587cab352f"><td class="mdescLeft"> </td><td class="mdescRight">Returns the string pointer. <a href="#a8c0f2264485f90b1d60aab587cab352f"></a><br/></td></tr>
<tr class="memitem:a31645a6f83a6e338936007135d8f8a4d"><td class="memItemLeft" align="right" valign="top"><a class="el" href="pwin32_8h.html#ab1967d8591af1a4e48c37fd2b0f184d0">int32_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classStringPiece.html#a31645a6f83a6e338936007135d8f8a4d">size</a> () const </td></tr>
<tr class="memdesc:a31645a6f83a6e338936007135d8f8a4d"><td class="mdescLeft"> </td><td class="mdescRight">Returns the string length. <a href="#a31645a6f83a6e338936007135d8f8a4d"></a><br/></td></tr>
<tr class="memitem:a56e2e8113c07d379a3deaaeed05dca60"><td class="memItemLeft" align="right" valign="top"><a class="el" href="pwin32_8h.html#ab1967d8591af1a4e48c37fd2b0f184d0">int32_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classStringPiece.html#a56e2e8113c07d379a3deaaeed05dca60">length</a> () const </td></tr>
<tr class="memdesc:a56e2e8113c07d379a3deaaeed05dca60"><td class="mdescLeft"> </td><td class="mdescRight">Returns the string length. <a href="#a56e2e8113c07d379a3deaaeed05dca60"></a><br/></td></tr>
<tr class="memitem:a4789a54e17fc082bdbbb615a67a19120"><td class="memItemLeft" align="right" valign="top"><a class="el" href="umachine_8h.html#a349ef00011f20ccd1d3b424445681aa5">UBool</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classStringPiece.html#a4789a54e17fc082bdbbb615a67a19120">empty</a> () const </td></tr>
<tr class="memdesc:a4789a54e17fc082bdbbb615a67a19120"><td class="mdescLeft"> </td><td class="mdescRight">Returns whether the string is empty. <a href="#a4789a54e17fc082bdbbb615a67a19120"></a><br/></td></tr>
<tr class="memitem:aba33c86f6353d50835ee4627a7b70326"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classStringPiece.html#aba33c86f6353d50835ee4627a7b70326">clear</a> ()</td></tr>
<tr class="memdesc:aba33c86f6353d50835ee4627a7b70326"><td class="mdescLeft"> </td><td class="mdescRight">Sets to an empty string. <a href="#aba33c86f6353d50835ee4627a7b70326"></a><br/></td></tr>
<tr class="memitem:a23fb19e624ea43cacdcb8f60273cdecf"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classStringPiece.html#a23fb19e624ea43cacdcb8f60273cdecf">set</a> (const char *xdata, <a class="el" href="pwin32_8h.html#ab1967d8591af1a4e48c37fd2b0f184d0">int32_t</a> len)</td></tr>
<tr class="memdesc:a23fb19e624ea43cacdcb8f60273cdecf"><td class="mdescLeft"> </td><td class="mdescRight">Reset the stringpiece to refer to new data. <a href="#a23fb19e624ea43cacdcb8f60273cdecf"></a><br/></td></tr>
<tr class="memitem:a3507b0b94d609529a659f35ca928b60b"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classStringPiece.html#a3507b0b94d609529a659f35ca928b60b">set</a> (const char *str)</td></tr>
<tr class="memdesc:a3507b0b94d609529a659f35ca928b60b"><td class="mdescLeft"> </td><td class="mdescRight">Reset the stringpiece to refer to new data. <a href="#a3507b0b94d609529a659f35ca928b60b"></a><br/></td></tr>
<tr class="memitem:a52b2f79cab62b8bc75e204dcc896baae"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classStringPiece.html#a52b2f79cab62b8bc75e204dcc896baae">remove_prefix</a> (<a class="el" href="pwin32_8h.html#ab1967d8591af1a4e48c37fd2b0f184d0">int32_t</a> n)</td></tr>
<tr class="memdesc:a52b2f79cab62b8bc75e204dcc896baae"><td class="mdescLeft"> </td><td class="mdescRight">Removes the first n string units. <a href="#a52b2f79cab62b8bc75e204dcc896baae"></a><br/></td></tr>
<tr class="memitem:ad1ed9b146e3ba745f3b91debff9511ac"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classStringPiece.html#ad1ed9b146e3ba745f3b91debff9511ac">remove_suffix</a> (<a class="el" href="pwin32_8h.html#ab1967d8591af1a4e48c37fd2b0f184d0">int32_t</a> n)</td></tr>
<tr class="memdesc:ad1ed9b146e3ba745f3b91debff9511ac"><td class="mdescLeft"> </td><td class="mdescRight">Removes the last n string units. <a href="#ad1ed9b146e3ba745f3b91debff9511ac"></a><br/></td></tr>
<tr class="memitem:aad0e95f16e143ccfa69afbb33a9cf702"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classStringPiece.html">StringPiece</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classStringPiece.html#aad0e95f16e143ccfa69afbb33a9cf702">substr</a> (<a class="el" href="pwin32_8h.html#ab1967d8591af1a4e48c37fd2b0f184d0">int32_t</a> pos, <a class="el" href="pwin32_8h.html#ab1967d8591af1a4e48c37fd2b0f184d0">int32_t</a> len=<a class="el" href="classStringPiece.html#a640079800d8239870fa07c84b7c5895b">npos</a>) const </td></tr>
<tr class="memdesc:aad0e95f16e143ccfa69afbb33a9cf702"><td class="mdescLeft"> </td><td class="mdescRight">Returns a substring of this <a class="el" href="classStringPiece.html" title="A string-like object that points to a sized piece of memory.">StringPiece</a>. <a href="#aad0e95f16e143ccfa69afbb33a9cf702"></a><br/></td></tr>
</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2><a name="pub-static-attribs"></a>
Static Public Attributes</h2></td></tr>
<tr class="memitem:a640079800d8239870fa07c84b7c5895b"><td class="memItemLeft" align="right" valign="top">static const <a class="el" href="pwin32_8h.html#ab1967d8591af1a4e48c37fd2b0f184d0">int32_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classStringPiece.html#a640079800d8239870fa07c84b7c5895b">npos</a> = 0x7fffffff</td></tr>
<tr class="memdesc:a640079800d8239870fa07c84b7c5895b"><td class="mdescLeft"> </td><td class="mdescRight">Maximum integer, used as a default value for substring methods. <a href="#a640079800d8239870fa07c84b7c5895b"></a><br/></td></tr>
</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2><a name="inherited"></a>
Additional Inherited Members</h2></td></tr>
<tr class="inherit_header pub_static_methods_classUMemory"><td colspan="2" onclick="javascript:toggleInherit('pub_static_methods_classUMemory')"><img src="closed.png" alt="-"/> Static Public Member Functions inherited from <a class="el" href="classUMemory.html">UMemory</a></td></tr>
<tr class="memitem:a309b19b5777e2840b85b202aef5a54fb inherit pub_static_methods_classUMemory"><td class="memItemLeft" align="right" valign="top">static void * </td><td class="memItemRight" valign="bottom"><a class="el" href="classUMemory.html#a309b19b5777e2840b85b202aef5a54fb">operator new</a> (size_t size)</td></tr>
<tr class="memdesc:a309b19b5777e2840b85b202aef5a54fb inherit pub_static_methods_classUMemory"><td class="mdescLeft"> </td><td class="mdescRight">Override for ICU4C C++ memory management. <a href="#a309b19b5777e2840b85b202aef5a54fb"></a><br/></td></tr>
<tr class="memitem:a4d0df3571728e7b8a823dbbea6e9b5c5 inherit pub_static_methods_classUMemory"><td class="memItemLeft" align="right" valign="top">static void * </td><td class="memItemRight" valign="bottom"><a class="el" href="classUMemory.html#a4d0df3571728e7b8a823dbbea6e9b5c5">operator new[]</a> (size_t size)</td></tr>
<tr class="memdesc:a4d0df3571728e7b8a823dbbea6e9b5c5 inherit pub_static_methods_classUMemory"><td class="mdescLeft"> </td><td class="mdescRight">Override for ICU4C C++ memory management. <a href="#a4d0df3571728e7b8a823dbbea6e9b5c5"></a><br/></td></tr>
<tr class="memitem:adcda65a58813749f8f45c5e6c1ed37e1 inherit pub_static_methods_classUMemory"><td class="memItemLeft" align="right" valign="top">static void </td><td class="memItemRight" valign="bottom"><a class="el" href="classUMemory.html#adcda65a58813749f8f45c5e6c1ed37e1">operator delete</a> (void *p)</td></tr>
<tr class="memdesc:adcda65a58813749f8f45c5e6c1ed37e1 inherit pub_static_methods_classUMemory"><td class="mdescLeft"> </td><td class="mdescRight">Override for ICU4C C++ memory management. <a href="#adcda65a58813749f8f45c5e6c1ed37e1"></a><br/></td></tr>
<tr class="memitem:a7602a7a8c6fdff21d9fbecea4d899333 inherit pub_static_methods_classUMemory"><td class="memItemLeft" align="right" valign="top">static void </td><td class="memItemRight" valign="bottom"><a class="el" href="classUMemory.html#a7602a7a8c6fdff21d9fbecea4d899333">operator delete[]</a> (void *p)</td></tr>
<tr class="memdesc:a7602a7a8c6fdff21d9fbecea4d899333 inherit pub_static_methods_classUMemory"><td class="mdescLeft"> </td><td class="mdescRight">Override for ICU4C C++ memory management. <a href="#a7602a7a8c6fdff21d9fbecea4d899333"></a><br/></td></tr>
<tr class="memitem:a43b5221fe429f77230b2040f8724c154 inherit pub_static_methods_classUMemory"><td class="memItemLeft" align="right" valign="top">static void * </td><td class="memItemRight" valign="bottom"><a class="el" href="classUMemory.html#a43b5221fe429f77230b2040f8724c154">operator new</a> (size_t, void *ptr)</td></tr>
<tr class="memdesc:a43b5221fe429f77230b2040f8724c154 inherit pub_static_methods_classUMemory"><td class="mdescLeft"> </td><td class="mdescRight">Override for ICU4C C++ memory management for STL. <a href="#a43b5221fe429f77230b2040f8724c154"></a><br/></td></tr>
<tr class="memitem:a9b746b0cdb49c8f8907773002ea5c4ea inherit pub_static_methods_classUMemory"><td class="memItemLeft" align="right" valign="top">static void </td><td class="memItemRight" valign="bottom"><a class="el" href="classUMemory.html#a9b746b0cdb49c8f8907773002ea5c4ea">operator delete</a> (void *, void *)</td></tr>
<tr class="memdesc:a9b746b0cdb49c8f8907773002ea5c4ea inherit pub_static_methods_classUMemory"><td class="mdescLeft"> </td><td class="mdescRight">Override for ICU4C C++ memory management for STL. <a href="#a9b746b0cdb49c8f8907773002ea5c4ea"></a><br/></td></tr>
</table>
<hr/><a name="details" id="details"></a><h2>Detailed Description</h2>
<div class="textblock"><p>A string-like object that points to a sized piece of memory. </p>
<p>We provide non-explicit singleton constructors so users can pass in a "const char*" or a "string" wherever a "StringPiece" is expected.</p>
<p>Functions or methods may use const <a class="el" href="classStringPiece.html" title="A string-like object that points to a sized piece of memory.">StringPiece</a>& parameters to accept either a "const char*" or a "string" value that will be implicitly converted to a <a class="el" href="classStringPiece.html" title="A string-like object that points to a sized piece of memory.">StringPiece</a>.</p>
<p>Systematic usage of <a class="el" href="classStringPiece.html" title="A string-like object that points to a sized piece of memory.">StringPiece</a> is encouraged as it will reduce unnecessary conversions from "const char*" to "string" and back again.</p>
<dl class="stable"><dt><b><a class="el" href="stable.html#_stable000393">Stable:</a></b></dt><dd>ICU 4.2 </dd></dl>
<p>Definition at line <a class="el" href="stringpiece_8h_source.html#l00052">52</a> of file <a class="el" href="stringpiece_8h_source.html">stringpiece.h</a>.</p>
</div><hr/><h2>Constructor & Destructor Documentation</h2>
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<td class="memname">StringPiece::StringPiece </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td></td>
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<p>Default constructor, creates an empty <a class="el" href="classStringPiece.html" title="A string-like object that points to a sized piece of memory.">StringPiece</a>. </p>
<dl class="stable"><dt><b><a class="el" href="stable.html#_stable000394">Stable:</a></b></dt><dd>ICU 4.2 </dd></dl>
<p>Definition at line <a class="el" href="stringpiece_8h_source.html#l00062">62</a> of file <a class="el" href="stringpiece_8h_source.html">stringpiece.h</a>.</p>
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<td class="memname">StringPiece::StringPiece </td>
<td>(</td>
<td class="paramtype">const char * </td>
<td class="paramname"><em>str</em></td><td>)</td>
<td></td>
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<p>Constructs from a NUL-terminated const char * pointer. </p>
<dl class="params"><dt>Parameters:</dt><dd>
<table class="params">
<tr><td class="paramname">str</td><td>a NUL-terminated const char * pointer </td></tr>
</table>
</dd>
</dl>
<dl class="stable"><dt><b><a class="el" href="stable.html#_stable000395">Stable:</a></b></dt><dd>ICU 4.2 </dd></dl>
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<td class="memname">StringPiece::StringPiece </td>
<td>(</td>
<td class="paramtype">const char * </td>
<td class="paramname"><em>offset</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="pwin32_8h.html#ab1967d8591af1a4e48c37fd2b0f184d0">int32_t</a> </td>
<td class="paramname"><em>len</em> </td>
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<p>Constructs from a const char * pointer and a specified length. </p>
<dl class="params"><dt>Parameters:</dt><dd>
<table class="params">
<tr><td class="paramname">offset</td><td>a const char * pointer (need not be terminated) </td></tr>
<tr><td class="paramname">len</td><td>the length of the string; must be non-negative </td></tr>
</table>
</dd>
</dl>
<dl class="stable"><dt><b><a class="el" href="stable.html#_stable000396">Stable:</a></b></dt><dd>ICU 4.2 </dd></dl>
<p>Definition at line <a class="el" href="stringpiece_8h_source.html#l00083">83</a> of file <a class="el" href="stringpiece_8h_source.html">stringpiece.h</a>.</p>
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<td>(</td>
<td class="paramtype">const <a class="el" href="classStringPiece.html">StringPiece</a> & </td>
<td class="paramname"><em>x</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="pwin32_8h.html#ab1967d8591af1a4e48c37fd2b0f184d0">int32_t</a> </td>
<td class="paramname"><em>pos</em> </td>
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<td></td>
<td>)</td>
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<p>Substring of another <a class="el" href="classStringPiece.html" title="A string-like object that points to a sized piece of memory.">StringPiece</a>. </p>
<dl class="params"><dt>Parameters:</dt><dd>
<table class="params">
<tr><td class="paramname">x</td><td>the other <a class="el" href="classStringPiece.html" title="A string-like object that points to a sized piece of memory.">StringPiece</a> </td></tr>
<tr><td class="paramname">pos</td><td>start position in x; must be non-negative and <= x.length(). </td></tr>
</table>
</dd>
</dl>
<dl class="stable"><dt><b><a class="el" href="stable.html#_stable000397">Stable:</a></b></dt><dd>ICU 4.2 </dd></dl>
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<td class="memname">StringPiece::StringPiece </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="classStringPiece.html">StringPiece</a> & </td>
<td class="paramname"><em>x</em>, </td>
</tr>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="pwin32_8h.html#ab1967d8591af1a4e48c37fd2b0f184d0">int32_t</a> </td>
<td class="paramname"><em>pos</em>, </td>
</tr>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="pwin32_8h.html#ab1967d8591af1a4e48c37fd2b0f184d0">int32_t</a> </td>
<td class="paramname"><em>len</em> </td>
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<td></td>
<td>)</td>
<td></td><td></td>
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<p>Substring of another <a class="el" href="classStringPiece.html" title="A string-like object that points to a sized piece of memory.">StringPiece</a>. </p>
<dl class="params"><dt>Parameters:</dt><dd>
<table class="params">
<tr><td class="paramname">x</td><td>the other <a class="el" href="classStringPiece.html" title="A string-like object that points to a sized piece of memory.">StringPiece</a> </td></tr>
<tr><td class="paramname">pos</td><td>start position in x; must be non-negative and <= x.length(). </td></tr>
<tr><td class="paramname">len</td><td>length of the substring; must be non-negative and will be pinned to at most x.length() - pos. </td></tr>
</table>
</dd>
</dl>
<dl class="stable"><dt><b><a class="el" href="stable.html#_stable000398">Stable:</a></b></dt><dd>ICU 4.2 </dd></dl>
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<hr/><h2>Member Function Documentation</h2>
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<td class="memname">void StringPiece::clear </td>
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<p>Sets to an empty string. </p>
<dl class="stable"><dt><b><a class="el" href="stable.html#_stable000403">Stable:</a></b></dt><dd>ICU 4.2 </dd></dl>
<p>Definition at line <a class="el" href="stringpiece_8h_source.html#l00135">135</a> of file <a class="el" href="stringpiece_8h_source.html">stringpiece.h</a>.</p>
<p>References <a class="el" href="utypes_8h_source.html#l00299">NULL</a>.</p>
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<td class="memname">const char* StringPiece::data </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td> const</td>
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<p>Returns the string pointer. </p>
<p>May be NULL if it is empty. </p>
<pre class="fragment">data() may return a pointer to a buffer with embedded NULs, and the
returned buffer may or may not be null terminated. Therefore it is
typically a mistake to pass data() to a routine that expects a NUL
terminated string.
@return the string pointer
\xrefitem stable 399.</pre>
<p>Definition at line <a class="el" href="stringpiece_8h_source.html#l00111">111</a> of file <a class="el" href="stringpiece_8h_source.html">stringpiece.h</a>.</p>
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<td class="memname"><a class="el" href="umachine_8h.html#a349ef00011f20ccd1d3b424445681aa5">UBool</a> StringPiece::empty </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td> const</td>
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<p>Returns whether the string is empty. </p>
<dl class="section return"><dt>Returns:</dt><dd>TRUE if the string is empty </dd></dl>
<dl class="stable"><dt><b><a class="el" href="stable.html#_stable000402">Stable:</a></b></dt><dd>ICU 4.2 </dd></dl>
<p>Definition at line <a class="el" href="stringpiece_8h_source.html#l00129">129</a> of file <a class="el" href="stringpiece_8h_source.html">stringpiece.h</a>.</p>
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<td class="memname"><a class="el" href="pwin32_8h.html#ab1967d8591af1a4e48c37fd2b0f184d0">int32_t</a> StringPiece::length </td>
<td>(</td>
<td class="paramtype">void </td>
<td class="paramname"></td><td>)</td>
<td> const</td>
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<p>Returns the string length. </p>
<p>Same as <a class="el" href="classStringPiece.html#a31645a6f83a6e338936007135d8f8a4d" title="Returns the string length.">size()</a>. </p>
<dl class="section return"><dt>Returns:</dt><dd>the string length </dd></dl>
<dl class="stable"><dt><b><a class="el" href="stable.html#_stable000401">Stable:</a></b></dt><dd>ICU 4.2 </dd></dl>
<p>Definition at line <a class="el" href="stringpiece_8h_source.html#l00123">123</a> of file <a class="el" href="stringpiece_8h_source.html">stringpiece.h</a>.</p>
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<td class="memname">void StringPiece::remove_prefix </td>
<td>(</td>
<td class="paramtype"><a class="el" href="pwin32_8h.html#ab1967d8591af1a4e48c37fd2b0f184d0">int32_t</a> </td>
<td class="paramname"><em>n</em></td><td>)</td>
<td></td>
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<p>Removes the first n string units. </p>
<dl class="params"><dt>Parameters:</dt><dd>
<table class="params">
<tr><td class="paramname">n</td><td>prefix length, must be non-negative and <=<a class="el" href="classStringPiece.html#a56e2e8113c07d379a3deaaeed05dca60" title="Returns the string length.">length()</a> </td></tr>
</table>
</dd>
</dl>
<dl class="stable"><dt><b><a class="el" href="stable.html#_stable000404">Stable:</a></b></dt><dd>ICU 4.2 </dd></dl>
<p>Definition at line <a class="el" href="stringpiece_8h_source.html#l00157">157</a> of file <a class="el" href="stringpiece_8h_source.html">stringpiece.h</a>.</p>
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<td class="memname">void StringPiece::remove_suffix </td>
<td>(</td>
<td class="paramtype"><a class="el" href="pwin32_8h.html#ab1967d8591af1a4e48c37fd2b0f184d0">int32_t</a> </td>
<td class="paramname"><em>n</em></td><td>)</td>
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<p>Removes the last n string units. </p>
<dl class="params"><dt>Parameters:</dt><dd>
<table class="params">
<tr><td class="paramname">n</td><td>suffix length, must be non-negative and <=<a class="el" href="classStringPiece.html#a56e2e8113c07d379a3deaaeed05dca60" title="Returns the string length.">length()</a> </td></tr>
</table>
</dd>
</dl>
<dl class="stable"><dt><b><a class="el" href="stable.html#_stable000405">Stable:</a></b></dt><dd>ICU 4.2 </dd></dl>
<p>Definition at line <a class="el" href="stringpiece_8h_source.html#l00172">172</a> of file <a class="el" href="stringpiece_8h_source.html">stringpiece.h</a>.</p>
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<td class="memname">void StringPiece::set </td>
<td>(</td>
<td class="paramtype">const char * </td>
<td class="paramname"><em>xdata</em>, </td>
</tr>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="pwin32_8h.html#ab1967d8591af1a4e48c37fd2b0f184d0">int32_t</a> </td>
<td class="paramname"><em>len</em> </td>
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<td>)</td>
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<p>Reset the stringpiece to refer to new data. </p>
<dl class="params"><dt>Parameters:</dt><dd>
<table class="params">
<tr><td class="paramname">xdata</td><td>pointer the new string data. Need not be nul terminated. </td></tr>
<tr><td class="paramname">len</td><td>the length of the new data </td></tr>
</table>
</dd>
</dl>
<dl class="draft"><dt><b><a class="el" href="draft.html#_draft000145">Draft:</a></b></dt><dd>This API may be changed in the future versions and was introduced in ICU 4.8 </dd></dl>
<p>Definition at line <a class="el" href="stringpiece_8h_source.html#l00143">143</a> of file <a class="el" href="stringpiece_8h_source.html">stringpiece.h</a>.</p>
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<td class="memname">void StringPiece::set </td>
<td>(</td>
<td class="paramtype">const char * </td>
<td class="paramname"><em>str</em></td><td>)</td>
<td></td>
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<p>Reset the stringpiece to refer to new data. </p>
<dl class="params"><dt>Parameters:</dt><dd>
<table class="params">
<tr><td class="paramname">str</td><td>a pointer to a NUL-terminated string. </td></tr>
</table>
</dd>
</dl>
<dl class="draft"><dt><b><a class="el" href="draft.html#_draft000146">Draft:</a></b></dt><dd>This API may be changed in the future versions and was introduced in ICU 4.8 </dd></dl>
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<td class="memname"><a class="el" href="pwin32_8h.html#ab1967d8591af1a4e48c37fd2b0f184d0">int32_t</a> StringPiece::size </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td> const</td>
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<p>Returns the string length. </p>
<p>Same as <a class="el" href="classStringPiece.html#a56e2e8113c07d379a3deaaeed05dca60" title="Returns the string length.">length()</a>. </p>
<dl class="section return"><dt>Returns:</dt><dd>the string length </dd></dl>
<dl class="stable"><dt><b><a class="el" href="stable.html#_stable000400">Stable:</a></b></dt><dd>ICU 4.2 </dd></dl>
<p>Definition at line <a class="el" href="stringpiece_8h_source.html#l00117">117</a> of file <a class="el" href="stringpiece_8h_source.html">stringpiece.h</a>.</p>
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<td class="memname"><a class="el" href="classStringPiece.html">StringPiece</a> StringPiece::substr </td>
<td>(</td>
<td class="paramtype"><a class="el" href="pwin32_8h.html#ab1967d8591af1a4e48c37fd2b0f184d0">int32_t</a> </td>
<td class="paramname"><em>pos</em>, </td>
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<td></td>
<td class="paramtype"><a class="el" href="pwin32_8h.html#ab1967d8591af1a4e48c37fd2b0f184d0">int32_t</a> </td>
<td class="paramname"><em>len</em> = <code><a class="el" href="classStringPiece.html#a640079800d8239870fa07c84b7c5895b">npos</a></code> </td>
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<td></td>
<td>)</td>
<td></td><td> const</td>
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<p>Returns a substring of this <a class="el" href="classStringPiece.html" title="A string-like object that points to a sized piece of memory.">StringPiece</a>. </p>
<dl class="params"><dt>Parameters:</dt><dd>
<table class="params">
<tr><td class="paramname">pos</td><td>start position; must be non-negative and <= <a class="el" href="classStringPiece.html#a56e2e8113c07d379a3deaaeed05dca60" title="Returns the string length.">length()</a>. </td></tr>
<tr><td class="paramname">len</td><td>length of the substring; must be non-negative and will be pinned to at most <a class="el" href="classStringPiece.html#a56e2e8113c07d379a3deaaeed05dca60" title="Returns the string length.">length()</a> - pos. </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns:</dt><dd>the substring <a class="el" href="classStringPiece.html" title="A string-like object that points to a sized piece of memory.">StringPiece</a> </dd></dl>
<dl class="stable"><dt><b><a class="el" href="stable.html#_stable000407">Stable:</a></b></dt><dd>ICU 4.2 </dd></dl>
<p>Definition at line <a class="el" href="stringpiece_8h_source.html#l00196">196</a> of file <a class="el" href="stringpiece_8h_source.html">stringpiece.h</a>.</p>
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<hr/><h2>Field Documentation</h2>
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<td class="memname">const <a class="el" href="pwin32_8h.html#ab1967d8591af1a4e48c37fd2b0f184d0">int32_t</a> StringPiece::npos = 0x7fffffff</td>
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<span class="mlabels"><span class="mlabel">static</span></span> </td>
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<p>Maximum integer, used as a default value for substring methods. </p>
<dl class="stable"><dt><b><a class="el" href="stable.html#_stable000406">Stable:</a></b></dt><dd>ICU 4.2 </dd></dl>
<p>Definition at line <a class="el" href="stringpiece_8h_source.html#l00186">186</a> of file <a class="el" href="stringpiece_8h_source.html">stringpiece.h</a>.</p>
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<hr/>The documentation for this class was generated from the following file:<ul>
<li><a class="el" href="stringpiece_8h_source.html">stringpiece.h</a></li>
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