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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "https://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<title>ICU 77.1: icu::BytesTrie::Iterator Class Reference</title>
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 <span id="projectnumber">77.1</span>
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<li class="navelem"><a class="el" href="namespaceicu.html">icu</a></li><li class="navelem"><a class="el" href="classicu_1_1BytesTrie.html">BytesTrie</a></li><li class="navelem"><a class="el" href="classicu_1_1BytesTrie_1_1Iterator.html">Iterator</a></li> </ul>
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<div class="header">
<div class="summary">
<a href="#pub-methods">Public Member Functions</a> </div>
<div class="headertitle">
<div class="title">icu::BytesTrie::Iterator Class Reference</div> </div>
</div><!--header-->
<div class="contents">
<p><a class="el" href="classicu_1_1BytesTrie_1_1Iterator.html" title="Iterator for all of the (byte sequence, value) pairs in a BytesTrie.">Iterator</a> for all of the (byte sequence, value) pairs in a <a class="el" href="classicu_1_1BytesTrie.html" title="Light-weight, non-const reader class for a BytesTrie.">BytesTrie</a>.
<a href="classicu_1_1BytesTrie_1_1Iterator.html#details">More...</a></p>
<p><code>#include <<a class="el" href="bytestrie_8h_source.html">bytestrie.h</a>></code></p>
<div class="dynheader">
Inheritance diagram for icu::BytesTrie::Iterator:</div>
<div class="dyncontent">
<div class="center">
<img src="classicu_1_1BytesTrie_1_1Iterator.png" usemap="#icu::BytesTrie::Iterator_map" alt=""/>
<map id="icu::BytesTrie::Iterator_map" name="icu::BytesTrie::Iterator_map">
<area href="classicu_1_1UMemory.html" title="UMemory is the common ICU base class." alt="icu::UMemory" shape="rect" coords="0,0,134,24"/>
</map>
</div></div>
<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-methods"></a>
Public Member Functions</h2></td></tr>
<tr class="memitem:ad5ea9cea7821eb025f35e7be36487e2c"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classicu_1_1BytesTrie_1_1Iterator.html#ad5ea9cea7821eb025f35e7be36487e2c">Iterator</a> (const void *trieBytes, int32_t maxStringLength, <a class="el" href="utypes_8h.html#a3343c1c8a8377277046774691c98d78c">UErrorCode</a> &errorCode)</td></tr>
<tr class="memdesc:ad5ea9cea7821eb025f35e7be36487e2c"><td class="mdescLeft"> </td><td class="mdescRight">Iterates from the root of a byte-serialized <a class="el" href="classicu_1_1BytesTrie.html" title="Light-weight, non-const reader class for a BytesTrie.">BytesTrie</a>. <a href="classicu_1_1BytesTrie_1_1Iterator.html#ad5ea9cea7821eb025f35e7be36487e2c">More...</a><br /></td></tr>
<tr class="separator:ad5ea9cea7821eb025f35e7be36487e2c"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:affc163bf1134e9d5938185308a3b4b0a"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classicu_1_1BytesTrie_1_1Iterator.html#affc163bf1134e9d5938185308a3b4b0a">Iterator</a> (const <a class="el" href="classicu_1_1BytesTrie.html">BytesTrie</a> &trie, int32_t maxStringLength, <a class="el" href="utypes_8h.html#a3343c1c8a8377277046774691c98d78c">UErrorCode</a> &errorCode)</td></tr>
<tr class="memdesc:affc163bf1134e9d5938185308a3b4b0a"><td class="mdescLeft"> </td><td class="mdescRight">Iterates from the current state of the specified <a class="el" href="classicu_1_1BytesTrie.html" title="Light-weight, non-const reader class for a BytesTrie.">BytesTrie</a>. <a href="classicu_1_1BytesTrie_1_1Iterator.html#affc163bf1134e9d5938185308a3b4b0a">More...</a><br /></td></tr>
<tr class="separator:affc163bf1134e9d5938185308a3b4b0a"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ac2daad9fc9e12671529de7e8528c8610"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classicu_1_1BytesTrie_1_1Iterator.html#ac2daad9fc9e12671529de7e8528c8610">~Iterator</a> ()</td></tr>
<tr class="memdesc:ac2daad9fc9e12671529de7e8528c8610"><td class="mdescLeft"> </td><td class="mdescRight">Destructor. <a href="classicu_1_1BytesTrie_1_1Iterator.html#ac2daad9fc9e12671529de7e8528c8610">More...</a><br /></td></tr>
<tr class="separator:ac2daad9fc9e12671529de7e8528c8610"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a83846afaef90677eca3f7ae147b5ccc0"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classicu_1_1BytesTrie_1_1Iterator.html">Iterator</a> & </td><td class="memItemRight" valign="bottom"><a class="el" href="classicu_1_1BytesTrie_1_1Iterator.html#a83846afaef90677eca3f7ae147b5ccc0">reset</a> ()</td></tr>
<tr class="memdesc:a83846afaef90677eca3f7ae147b5ccc0"><td class="mdescLeft"> </td><td class="mdescRight">Resets this iterator to its initial state. <a href="classicu_1_1BytesTrie_1_1Iterator.html#a83846afaef90677eca3f7ae147b5ccc0">More...</a><br /></td></tr>
<tr class="separator:a83846afaef90677eca3f7ae147b5ccc0"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a2c8e238fbcfaa0d389bc963ecd4b9a50"><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="classicu_1_1BytesTrie_1_1Iterator.html#a2c8e238fbcfaa0d389bc963ecd4b9a50">hasNext</a> () const</td></tr>
<tr class="separator:a2c8e238fbcfaa0d389bc963ecd4b9a50"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:af512cc1afa44886b5d2580dcef4f0de5"><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="classicu_1_1BytesTrie_1_1Iterator.html#af512cc1afa44886b5d2580dcef4f0de5">next</a> (<a class="el" href="utypes_8h.html#a3343c1c8a8377277046774691c98d78c">UErrorCode</a> &errorCode)</td></tr>
<tr class="memdesc:af512cc1afa44886b5d2580dcef4f0de5"><td class="mdescLeft"> </td><td class="mdescRight">Finds the next (byte sequence, value) pair if there is one. <a href="classicu_1_1BytesTrie_1_1Iterator.html#af512cc1afa44886b5d2580dcef4f0de5">More...</a><br /></td></tr>
<tr class="separator:af512cc1afa44886b5d2580dcef4f0de5"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a576b1d6bc1674f5a2259023336554aeb"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classicu_1_1StringPiece.html">StringPiece</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classicu_1_1BytesTrie_1_1Iterator.html#a576b1d6bc1674f5a2259023336554aeb">getString</a> () const</td></tr>
<tr class="separator:a576b1d6bc1674f5a2259023336554aeb"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:acffa0f2fe9666fea319f40041e5dbb4c"><td class="memItemLeft" align="right" valign="top">int32_t </td><td class="memItemRight" valign="bottom"><a class="el" href="classicu_1_1BytesTrie_1_1Iterator.html#acffa0f2fe9666fea319f40041e5dbb4c">getValue</a> () const</td></tr>
<tr class="separator:acffa0f2fe9666fea319f40041e5dbb4c"><td class="memSeparator" colspan="2"> </td></tr>
</table>
<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p><a class="el" href="classicu_1_1BytesTrie_1_1Iterator.html" title="Iterator for all of the (byte sequence, value) pairs in a BytesTrie.">Iterator</a> for all of the (byte sequence, value) pairs in a <a class="el" href="classicu_1_1BytesTrie.html" title="Light-weight, non-const reader class for a BytesTrie.">BytesTrie</a>. </p>
<dl class="stable"><dt><b><a class="el" href="stable.html#_stable000088">Stable:</a></b></dt><dd>ICU 4.8 </dd></dl>
<p class="definition">Definition at line <a class="el" href="bytestrie_8h_source.html#l00282">282</a> of file <a class="el" href="bytestrie_8h_source.html">bytestrie.h</a>.</p>
</div><h2 class="groupheader">Constructor & Destructor Documentation</h2>
<a id="ad5ea9cea7821eb025f35e7be36487e2c"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ad5ea9cea7821eb025f35e7be36487e2c">◆ </a></span>Iterator() <span class="overload">[1/2]</span></h2>
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<div class="memproto">
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<td class="memname">icu::BytesTrie::Iterator::Iterator </td>
<td>(</td>
<td class="paramtype">const void * </td>
<td class="paramname"><em>trieBytes</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int32_t </td>
<td class="paramname"><em>maxStringLength</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="utypes_8h.html#a3343c1c8a8377277046774691c98d78c">UErrorCode</a> & </td>
<td class="paramname"><em>errorCode</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
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</div><div class="memdoc">
<p>Iterates from the root of a byte-serialized <a class="el" href="classicu_1_1BytesTrie.html" title="Light-weight, non-const reader class for a BytesTrie.">BytesTrie</a>. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">trieBytes</td><td>The trie bytes. </td></tr>
<tr><td class="paramname">maxStringLength</td><td>If 0, the iterator returns full strings/byte sequences. Otherwise, the iterator returns strings with this maximum length. </td></tr>
<tr><td class="paramname">errorCode</td><td>Standard ICU error code. Its input value must pass the <a class="el" href="utypes_8h.html#a527f2c69e6b2e3b2c53ad8a99fb36711" title="Does the error code indicate success?">U_SUCCESS()</a> test, or else the function returns immediately. Check for <a class="el" href="utypes_8h.html#a4d202200b6aa6f3c965ea370e0c8155f" title="Does the error code indicate a failure?">U_FAILURE()</a> on output or use with function chaining. (See User Guide for details.) </td></tr>
</table>
</dd>
</dl>
<dl class="stable"><dt><b><a class="el" href="stable.html#_stable000090">Stable:</a></b></dt><dd>ICU 4.8 </dd></dl>
</div>
</div>
<a id="affc163bf1134e9d5938185308a3b4b0a"></a>
<h2 class="memtitle"><span class="permalink"><a href="#affc163bf1134e9d5938185308a3b4b0a">◆ </a></span>Iterator() <span class="overload">[2/2]</span></h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">icu::BytesTrie::Iterator::Iterator </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="classicu_1_1BytesTrie.html">BytesTrie</a> & </td>
<td class="paramname"><em>trie</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int32_t </td>
<td class="paramname"><em>maxStringLength</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="utypes_8h.html#a3343c1c8a8377277046774691c98d78c">UErrorCode</a> & </td>
<td class="paramname"><em>errorCode</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
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</div><div class="memdoc">
<p>Iterates from the current state of the specified <a class="el" href="classicu_1_1BytesTrie.html" title="Light-weight, non-const reader class for a BytesTrie.">BytesTrie</a>. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">trie</td><td>The trie whose state will be copied for iteration. </td></tr>
<tr><td class="paramname">maxStringLength</td><td>If 0, the iterator returns full strings/byte sequences. Otherwise, the iterator returns strings with this maximum length. </td></tr>
<tr><td class="paramname">errorCode</td><td>Standard ICU error code. Its input value must pass the <a class="el" href="utypes_8h.html#a527f2c69e6b2e3b2c53ad8a99fb36711" title="Does the error code indicate success?">U_SUCCESS()</a> test, or else the function returns immediately. Check for <a class="el" href="utypes_8h.html#a4d202200b6aa6f3c965ea370e0c8155f" title="Does the error code indicate a failure?">U_FAILURE()</a> on output or use with function chaining. (See User Guide for details.) </td></tr>
</table>
</dd>
</dl>
<dl class="stable"><dt><b><a class="el" href="stable.html#_stable000091">Stable:</a></b></dt><dd>ICU 4.8 </dd></dl>
</div>
</div>
<a id="ac2daad9fc9e12671529de7e8528c8610"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ac2daad9fc9e12671529de7e8528c8610">◆ </a></span>~Iterator()</h2>
<div class="memitem">
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<td class="memname">icu::BytesTrie::Iterator::~Iterator </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td></td>
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</div><div class="memdoc">
<p>Destructor. </p>
<dl class="stable"><dt><b><a class="el" href="stable.html#_stable000092">Stable:</a></b></dt><dd>ICU 4.8 </dd></dl>
</div>
</div>
<h2 class="groupheader">Member Function Documentation</h2>
<a id="a576b1d6bc1674f5a2259023336554aeb"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a576b1d6bc1674f5a2259023336554aeb">◆ </a></span>getString()</h2>
<div class="memitem">
<div class="memproto">
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<td class="memname"><a class="el" href="classicu_1_1StringPiece.html">StringPiece</a> icu::BytesTrie::Iterator::getString </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td> const</td>
</tr>
</table>
</div><div class="memdoc">
<dl class="section return"><dt>Returns</dt><dd>The NUL-terminated byte sequence for the last successful <a class="el" href="classicu_1_1BytesTrie_1_1Iterator.html#af512cc1afa44886b5d2580dcef4f0de5" title="Finds the next (byte sequence, value) pair if there is one.">next()</a>. </dd></dl>
<dl class="stable"><dt><b><a class="el" href="stable.html#_stable000096">Stable:</a></b></dt><dd>ICU 4.8 </dd></dl>
</div>
</div>
<a id="acffa0f2fe9666fea319f40041e5dbb4c"></a>
<h2 class="memtitle"><span class="permalink"><a href="#acffa0f2fe9666fea319f40041e5dbb4c">◆ </a></span>getValue()</h2>
<div class="memitem">
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<td class="mlabels-left">
<table class="memname">
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<td class="memname">int32_t icu::BytesTrie::Iterator::getValue </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td> const</td>
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</td>
<td class="mlabels-right">
<span class="mlabels"><span class="mlabel">inline</span></span> </td>
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<dl class="section return"><dt>Returns</dt><dd>The value for the last successful <a class="el" href="classicu_1_1BytesTrie_1_1Iterator.html#af512cc1afa44886b5d2580dcef4f0de5" title="Finds the next (byte sequence, value) pair if there is one.">next()</a>. </dd></dl>
<dl class="stable"><dt><b><a class="el" href="stable.html#_stable000097">Stable:</a></b></dt><dd>ICU 4.8 </dd></dl>
<p class="definition">Definition at line <a class="el" href="bytestrie_8h_source.html#l00354">354</a> of file <a class="el" href="bytestrie_8h_source.html">bytestrie.h</a>.</p>
</div>
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<h2 class="memtitle"><span class="permalink"><a href="#a2c8e238fbcfaa0d389bc963ecd4b9a50">◆ </a></span>hasNext()</h2>
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<td class="memname"><a class="el" href="umachine_8h.html#a349ef00011f20ccd1d3b424445681aa5">UBool</a> icu::BytesTrie::Iterator::hasNext </td>
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<td> const</td>
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<dl class="section return"><dt>Returns</dt><dd>true if there are more elements. </dd></dl>
<dl class="stable"><dt><b><a class="el" href="stable.html#_stable000094">Stable:</a></b></dt><dd>ICU 4.8 </dd></dl>
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<h2 class="memtitle"><span class="permalink"><a href="#af512cc1afa44886b5d2580dcef4f0de5">◆ </a></span>next()</h2>
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<td class="memname"><a class="el" href="umachine_8h.html#a349ef00011f20ccd1d3b424445681aa5">UBool</a> icu::BytesTrie::Iterator::next </td>
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<td class="paramtype"><a class="el" href="utypes_8h.html#a3343c1c8a8377277046774691c98d78c">UErrorCode</a> & </td>
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<p>Finds the next (byte sequence, value) pair if there is one. </p>
<p>If the byte sequence is truncated to the maximum length and does not have a real value, then the value is set to -1. In this case, this "not a real value" is indistinguishable from a real value of -1. </p><dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramname">errorCode</td><td>Standard ICU error code. Its input value must pass the <a class="el" href="utypes_8h.html#a527f2c69e6b2e3b2c53ad8a99fb36711" title="Does the error code indicate success?">U_SUCCESS()</a> test, or else the function returns immediately. Check for <a class="el" href="utypes_8h.html#a4d202200b6aa6f3c965ea370e0c8155f" title="Does the error code indicate a failure?">U_FAILURE()</a> on output or use with function chaining. (See User Guide for details.) </td></tr>
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<dl class="section return"><dt>Returns</dt><dd>true if there is another element. </dd></dl>
<dl class="stable"><dt><b><a class="el" href="stable.html#_stable000095">Stable:</a></b></dt><dd>ICU 4.8 </dd></dl>
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<h2 class="memtitle"><span class="permalink"><a href="#a83846afaef90677eca3f7ae147b5ccc0">◆ </a></span>reset()</h2>
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<td class="memname"><a class="el" href="classicu_1_1BytesTrie_1_1Iterator.html">Iterator</a>& icu::BytesTrie::Iterator::reset </td>
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<p>Resets this iterator to its initial state. </p>
<dl class="section return"><dt>Returns</dt><dd>*this </dd></dl>
<dl class="stable"><dt><b><a class="el" href="stable.html#_stable000093">Stable:</a></b></dt><dd>ICU 4.8 </dd></dl>
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<hr/>The documentation for this class was generated from the following file:<ul>
<li>common/unicode/<a class="el" href="bytestrie_8h_source.html">bytestrie.h</a></li>
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