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<div class="title">UDataInfo Struct Reference</div> </div>
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<p><a class="el" href="structUDataInfo.html" title="UDataInfo contains the properties about the requested data. ">UDataInfo</a> contains the properties about the requested data.
<a href="structUDataInfo.html#details">More...</a></p>
<p><code>#include <<a class="el" href="udata_8h_source.html">udata.h</a>></code></p>
<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-attribs"></a>
Data Fields</h2></td></tr>
<tr class="memitem:abd6b2241d107149c47bab1670a928499"><td class="memItemLeft" align="right" valign="top">uint16_t </td><td class="memItemRight" valign="bottom"><a class="el" href="structUDataInfo.html#abd6b2241d107149c47bab1670a928499">size</a></td></tr>
<tr class="memdesc:abd6b2241d107149c47bab1670a928499"><td class="mdescLeft"> </td><td class="mdescRight">sizeof(UDataInfo) <a href="#abd6b2241d107149c47bab1670a928499">More...</a><br /></td></tr>
<tr class="separator:abd6b2241d107149c47bab1670a928499"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:af4a5b961c10058651aacb7a2ae45a199"><td class="memItemLeft" align="right" valign="top">uint16_t </td><td class="memItemRight" valign="bottom"><a class="el" href="structUDataInfo.html#af4a5b961c10058651aacb7a2ae45a199">reservedWord</a></td></tr>
<tr class="memdesc:af4a5b961c10058651aacb7a2ae45a199"><td class="mdescLeft"> </td><td class="mdescRight">unused, set to 0 <a href="#af4a5b961c10058651aacb7a2ae45a199">More...</a><br /></td></tr>
<tr class="separator:af4a5b961c10058651aacb7a2ae45a199"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a91e6d8ad118435fe868a1e678b12c2d2"><td class="memItemLeft" align="right" valign="top">uint8_t </td><td class="memItemRight" valign="bottom"><a class="el" href="structUDataInfo.html#a91e6d8ad118435fe868a1e678b12c2d2">isBigEndian</a></td></tr>
<tr class="memdesc:a91e6d8ad118435fe868a1e678b12c2d2"><td class="mdescLeft"> </td><td class="mdescRight">0 for little-endian machine, 1 for big-endian <a href="#a91e6d8ad118435fe868a1e678b12c2d2">More...</a><br /></td></tr>
<tr class="separator:a91e6d8ad118435fe868a1e678b12c2d2"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a9194f34dd1fc7792e79f8c9ac9370fba"><td class="memItemLeft" align="right" valign="top">uint8_t </td><td class="memItemRight" valign="bottom"><a class="el" href="structUDataInfo.html#a9194f34dd1fc7792e79f8c9ac9370fba">charsetFamily</a></td></tr>
<tr class="memdesc:a9194f34dd1fc7792e79f8c9ac9370fba"><td class="mdescLeft"> </td><td class="mdescRight">see U_CHARSET_FAMILY values in <a class="el" href="utypes_8h.html" title="Basic definitions for ICU, for both C and C++ APIs. ">utypes.h</a> <a href="#a9194f34dd1fc7792e79f8c9ac9370fba">More...</a><br /></td></tr>
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<tr class="memitem:a42d11c2da61f81edb7a64d0635770dd4"><td class="memItemLeft" align="right" valign="top">uint8_t </td><td class="memItemRight" valign="bottom"><a class="el" href="structUDataInfo.html#a42d11c2da61f81edb7a64d0635770dd4">sizeofUChar</a></td></tr>
<tr class="memdesc:a42d11c2da61f81edb7a64d0635770dd4"><td class="mdescLeft"> </td><td class="mdescRight">sizeof(UChar), one of { 1, 2, 4 } <a href="#a42d11c2da61f81edb7a64d0635770dd4">More...</a><br /></td></tr>
<tr class="separator:a42d11c2da61f81edb7a64d0635770dd4"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ae2bfb79e1720a9190b9efe1bb446d897"><td class="memItemLeft" align="right" valign="top">uint8_t </td><td class="memItemRight" valign="bottom"><a class="el" href="structUDataInfo.html#ae2bfb79e1720a9190b9efe1bb446d897">reservedByte</a></td></tr>
<tr class="memdesc:ae2bfb79e1720a9190b9efe1bb446d897"><td class="mdescLeft"> </td><td class="mdescRight">unused, set to 0 <a href="#ae2bfb79e1720a9190b9efe1bb446d897">More...</a><br /></td></tr>
<tr class="separator:ae2bfb79e1720a9190b9efe1bb446d897"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a479aff545723a4e6ba645dbd54807094"><td class="memItemLeft" align="right" valign="top">uint8_t </td><td class="memItemRight" valign="bottom"><a class="el" href="structUDataInfo.html#a479aff545723a4e6ba645dbd54807094">dataFormat</a> [4]</td></tr>
<tr class="memdesc:a479aff545723a4e6ba645dbd54807094"><td class="mdescLeft"> </td><td class="mdescRight">data format identifier <a href="#a479aff545723a4e6ba645dbd54807094">More...</a><br /></td></tr>
<tr class="separator:a479aff545723a4e6ba645dbd54807094"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a2857f66fc0e4abf1dd36fdcbeb7185e2"><td class="memItemLeft" align="right" valign="top">uint8_t </td><td class="memItemRight" valign="bottom"><a class="el" href="structUDataInfo.html#a2857f66fc0e4abf1dd36fdcbeb7185e2">formatVersion</a> [4]</td></tr>
<tr class="memdesc:a2857f66fc0e4abf1dd36fdcbeb7185e2"><td class="mdescLeft"> </td><td class="mdescRight">versions: [0] major [1] minor [2] milli [3] micro <a href="#a2857f66fc0e4abf1dd36fdcbeb7185e2">More...</a><br /></td></tr>
<tr class="separator:a2857f66fc0e4abf1dd36fdcbeb7185e2"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a76c9e51f168e69f70b68976cc65e88a2"><td class="memItemLeft" align="right" valign="top">uint8_t </td><td class="memItemRight" valign="bottom"><a class="el" href="structUDataInfo.html#a76c9e51f168e69f70b68976cc65e88a2">dataVersion</a> [4]</td></tr>
<tr class="memdesc:a76c9e51f168e69f70b68976cc65e88a2"><td class="mdescLeft"> </td><td class="mdescRight">versions: [0] major [1] minor [2] milli [3] micro <a href="#a76c9e51f168e69f70b68976cc65e88a2">More...</a><br /></td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p><a class="el" href="structUDataInfo.html" title="UDataInfo contains the properties about the requested data. ">UDataInfo</a> contains the properties about the requested data. </p>
<p>This is meta data.</p>
<p>This structure may grow in the future, indicated by the <code>size</code> field.</p>
<p>ICU data must be at least 8-aligned, and should be 16-aligned. The <a class="el" href="structUDataInfo.html" title="UDataInfo contains the properties about the requested data. ">UDataInfo</a> struct begins 4 bytes after the start of the data item, so it is 4-aligned.</p>
<p>The platform data property fields help determine if a data file can be efficiently used on a given machine. The particular fields are of importance only if the data is affected by the properties - if there is integer data with word sizes > 1 byte, char* text, or UChar* text.</p>
<p>The implementation for the <code>udata_open[Choice]()</code> functions may reject data based on the value in <code>isBigEndian</code>. No other field is used by the <code>udata</code> API implementation.</p>
<p>The <code>dataFormat</code> may be used to identify the kind of data, e.g. a converter table.</p>
<p>The <code>formatVersion</code> field should be used to make sure that the format can be interpreted. It may be a good idea to check only for the one or two highest of the version elements to allow the data memory to get more or somewhat rearranged contents, for as long as the using code can still interpret the older contents.</p>
<p>The <code>dataVersion</code> field is intended to be a common place to store the source version of the data; for data from the Unicode character database, this could reflect the Unicode version.</p>
<dl class="stable"><dt><b><a class="el" href="stable.html#_stable001679">Stable:</a></b></dt><dd>ICU 2.0 </dd></dl>
<p>Definition at line <a class="el" href="udata_8h_source.html#l00113">113</a> of file <a class="el" href="udata_8h_source.html">udata.h</a>.</p>
</div><h2 class="groupheader">Field Documentation</h2>
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<p>see U_CHARSET_FAMILY values in <a class="el" href="utypes_8h.html" title="Basic definitions for ICU, for both C and C++ APIs. ">utypes.h</a> </p>
<dl class="stable"><dt><b><a class="el" href="stable.html#_stable001694">Stable:</a></b></dt><dd>ICU 2.0 </dd></dl>
<p>Definition at line <a class="el" href="udata_8h_source.html#l00129">129</a> of file <a class="el" href="udata_8h_source.html">udata.h</a>.</p>
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<p>data format identifier </p>
<dl class="stable"><dt><b><a class="el" href="stable.html#_stable001697">Stable:</a></b></dt><dd>ICU 2.0 </dd></dl>
<p>Definition at line <a class="el" href="udata_8h_source.html#l00141">141</a> of file <a class="el" href="udata_8h_source.html">udata.h</a>.</p>
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<td class="memname">uint8_t UDataInfo::dataVersion[4]</td>
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<p>versions: [0] major [1] minor [2] milli [3] micro </p>
<dl class="stable"><dt><b><a class="el" href="stable.html#_stable001699">Stable:</a></b></dt><dd>ICU 2.0 </dd></dl>
<p>Definition at line <a class="el" href="udata_8h_source.html#l00149">149</a> of file <a class="el" href="udata_8h_source.html">udata.h</a>.</p>
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<p>versions: [0] major [1] minor [2] milli [3] micro </p>
<dl class="stable"><dt><b><a class="el" href="stable.html#_stable001698">Stable:</a></b></dt><dd>ICU 2.0 </dd></dl>
<p>Definition at line <a class="el" href="udata_8h_source.html#l00145">145</a> of file <a class="el" href="udata_8h_source.html">udata.h</a>.</p>
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<p>0 for little-endian machine, 1 for big-endian </p>
<dl class="stable"><dt><b><a class="el" href="stable.html#_stable001693">Stable:</a></b></dt><dd>ICU 2.0 </dd></dl>
<p>Definition at line <a class="el" href="udata_8h_source.html#l00125">125</a> of file <a class="el" href="udata_8h_source.html">udata.h</a>.</p>
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<p>unused, set to 0 </p>
<dl class="stable"><dt><b><a class="el" href="stable.html#_stable001696">Stable:</a></b></dt><dd>ICU 2.0 </dd></dl>
<p>Definition at line <a class="el" href="udata_8h_source.html#l00137">137</a> of file <a class="el" href="udata_8h_source.html">udata.h</a>.</p>
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<p>unused, set to 0 </p>
<dl class="stable"><dt><b><a class="el" href="stable.html#_stable001692">Stable:</a></b></dt><dd>ICU 2.0 </dd></dl>
<p>Definition at line <a class="el" href="udata_8h_source.html#l00120">120</a> of file <a class="el" href="udata_8h_source.html">udata.h</a>.</p>
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<p>sizeof(UDataInfo) </p>
<dl class="stable"><dt><b><a class="el" href="stable.html#_stable001691">Stable:</a></b></dt><dd>ICU 2.0 </dd></dl>
<p>Definition at line <a class="el" href="udata_8h_source.html#l00116">116</a> of file <a class="el" href="udata_8h_source.html">udata.h</a>.</p>
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<p>sizeof(UChar), one of { 1, 2, 4 } </p>
<dl class="stable"><dt><b><a class="el" href="stable.html#_stable001695">Stable:</a></b></dt><dd>ICU 2.0 </dd></dl>
<p>Definition at line <a class="el" href="udata_8h_source.html#l00133">133</a> of file <a class="el" href="udata_8h_source.html">udata.h</a>.</p>
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<hr/>The documentation for this struct was generated from the following file:<ul>
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