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<p>C API: Platform Utilities.
<a href="#details">More...</a></p>
<div class="textblock"><code>#include "<a class="el" href="utypes_8h_source.html">unicode/utypes.h</a>"</code><br/>
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<p><a href="putil_8h_source.html">Go to the source code of this file.</a></p>
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Macros</h2></td></tr>
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<tr class="memitem:a4d41826cae0108d7ce4c480c733631c0"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="putil_8h.html#a4d41826cae0108d7ce4c480c733631c0">U_FILE_SEP_CHAR</a>   ':'</td></tr>
<tr class="memdesc:a4d41826cae0108d7ce4c480c733631c0"><td class="mdescLeft"> </td><td class="mdescRight">Filesystem file and path separator characters. <a href="#a4d41826cae0108d7ce4c480c733631c0">More...</a><br/></td></tr>
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<tr class="memitem:a86281839c42e8f044313eed5f1417d5a"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="putil_8h.html#a86281839c42e8f044313eed5f1417d5a">U_FILE_ALT_SEP_CHAR</a>   ':'</td></tr>
<tr class="memdesc:a86281839c42e8f044313eed5f1417d5a"><td class="mdescLeft"> </td><td class="mdescRight">Filesystem file and path separator characters. <a href="#a86281839c42e8f044313eed5f1417d5a">More...</a><br/></td></tr>
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<tr class="memitem:a5e053f4748f1e82d84c3bac48b3ccb10"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="putil_8h.html#a5e053f4748f1e82d84c3bac48b3ccb10">U_PATH_SEP_CHAR</a>   ';'</td></tr>
<tr class="memdesc:a5e053f4748f1e82d84c3bac48b3ccb10"><td class="mdescLeft"> </td><td class="mdescRight">Filesystem file and path separator characters. <a href="#a5e053f4748f1e82d84c3bac48b3ccb10">More...</a><br/></td></tr>
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<tr class="memitem:a957d91eea919db7dd317dbaddd4ba090"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="putil_8h.html#a957d91eea919db7dd317dbaddd4ba090">U_FILE_SEP_STRING</a>   ":"</td></tr>
<tr class="memdesc:a957d91eea919db7dd317dbaddd4ba090"><td class="mdescLeft"> </td><td class="mdescRight">Filesystem file and path separator characters. <a href="#a957d91eea919db7dd317dbaddd4ba090">More...</a><br/></td></tr>
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<tr class="memitem:aea13f8d98aa39d79cfcf3b9007879139"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="putil_8h.html#aea13f8d98aa39d79cfcf3b9007879139">U_FILE_ALT_SEP_STRING</a>   ":"</td></tr>
<tr class="memdesc:aea13f8d98aa39d79cfcf3b9007879139"><td class="mdescLeft"> </td><td class="mdescRight">Filesystem file and path separator characters. <a href="#aea13f8d98aa39d79cfcf3b9007879139">More...</a><br/></td></tr>
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<tr class="memitem:a91afb504ca1d147907144a873fabb3f9"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="putil_8h.html#a91afb504ca1d147907144a873fabb3f9">U_PATH_SEP_STRING</a>   ";"</td></tr>
<tr class="memdesc:a91afb504ca1d147907144a873fabb3f9"><td class="mdescLeft"> </td><td class="mdescRight">Filesystem file and path separator characters. <a href="#a91afb504ca1d147907144a873fabb3f9">More...</a><br/></td></tr>
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Functions</h2></td></tr>
<tr class="memitem:a191ab876d121aff107437e6876090647"><td class="memItemLeft" align="right" valign="top">const char * </td><td class="memItemRight" valign="bottom"><a class="el" href="putil_8h.html#a191ab876d121aff107437e6876090647">u_getDataDirectory</a> (void)</td></tr>
<tr class="memdesc:a191ab876d121aff107437e6876090647"><td class="mdescLeft"> </td><td class="mdescRight">Platform utilities isolates the platform dependencies of the libarary. <a href="#a191ab876d121aff107437e6876090647">More...</a><br/></td></tr>
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<tr class="memitem:ab03241e29fc619a4b3f7737e98aa08ef"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="putil_8h.html#ab03241e29fc619a4b3f7737e98aa08ef">u_setDataDirectory</a> (const char *directory)</td></tr>
<tr class="memdesc:ab03241e29fc619a4b3f7737e98aa08ef"><td class="mdescLeft"> </td><td class="mdescRight">Set the ICU data directory. <a href="#ab03241e29fc619a4b3f7737e98aa08ef">More...</a><br/></td></tr>
<tr class="separator:ab03241e29fc619a4b3f7737e98aa08ef"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ad2ba2f88b01ea212f2bfbe2c6b0854a7"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="putil_8h.html#ad2ba2f88b01ea212f2bfbe2c6b0854a7">u_charsToUChars</a> (const char *cs, <a class="el" href="umachine_8h.html#a6bb9fad572d65b305324ef288165e2ac">UChar</a> *us, int32_t length)</td></tr>
<tr class="memdesc:ad2ba2f88b01ea212f2bfbe2c6b0854a7"><td class="mdescLeft"> </td><td class="mdescRight">Convert char characters to UChar characters. <a href="#ad2ba2f88b01ea212f2bfbe2c6b0854a7">More...</a><br/></td></tr>
<tr class="separator:ad2ba2f88b01ea212f2bfbe2c6b0854a7"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a105f24a806d2c849064db0a37ed84a22"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="putil_8h.html#a105f24a806d2c849064db0a37ed84a22">u_UCharsToChars</a> (const <a class="el" href="umachine_8h.html#a6bb9fad572d65b305324ef288165e2ac">UChar</a> *us, char *cs, int32_t length)</td></tr>
<tr class="memdesc:a105f24a806d2c849064db0a37ed84a22"><td class="mdescLeft"> </td><td class="mdescRight">Convert UChar characters to char characters. <a href="#a105f24a806d2c849064db0a37ed84a22">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>C API: Platform Utilities. </p>
<p>Definition in file <a class="el" href="putil_8h_source.html">putil.h</a>.</p>
</div><h2 class="groupheader">Macro Definition Documentation</h2>
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<td class="memname">#define U_FILE_ALT_SEP_CHAR   ':'</td>
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<p>Filesystem file and path separator characters. </p>
<p>Example: '/' and ':' on Unix, '\' and ';' on Windows. </p>
<dl class="stable"><dt><b><a class="el" href="stable.html#_stable000480">Stable:</a></b></dt><dd>ICU 2.0 </dd></dl>
<p>Definition at line <a class="el" href="putil_8h_source.html#l00098">98</a> of file <a class="el" href="putil_8h_source.html">putil.h</a>.</p>
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<p>Filesystem file and path separator characters. </p>
<p>Example: '/' and ':' on Unix, '\' and ';' on Windows. </p>
<dl class="stable"><dt><b><a class="el" href="stable.html#_stable000480">Stable:</a></b></dt><dd>ICU 2.0 </dd></dl>
<p>Definition at line <a class="el" href="putil_8h_source.html#l00101">101</a> of file <a class="el" href="putil_8h_source.html">putil.h</a>.</p>
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<td class="memname">#define U_FILE_SEP_CHAR   ':'</td>
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<p>Filesystem file and path separator characters. </p>
<p>Example: '/' and ':' on Unix, '\' and ';' on Windows. </p>
<dl class="stable"><dt><b><a class="el" href="stable.html#_stable000480">Stable:</a></b></dt><dd>ICU 2.0 </dd></dl>
<p>Definition at line <a class="el" href="putil_8h_source.html#l00097">97</a> of file <a class="el" href="putil_8h_source.html">putil.h</a>.</p>
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<td class="memname">#define U_FILE_SEP_STRING   ":"</td>
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<p>Filesystem file and path separator characters. </p>
<p>Example: '/' and ':' on Unix, '\' and ';' on Windows. </p>
<dl class="stable"><dt><b><a class="el" href="stable.html#_stable000480">Stable:</a></b></dt><dd>ICU 2.0 </dd></dl>
<p>Definition at line <a class="el" href="putil_8h_source.html#l00100">100</a> of file <a class="el" href="putil_8h_source.html">putil.h</a>.</p>
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<td class="memname">#define U_PATH_SEP_CHAR   ';'</td>
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<p>Filesystem file and path separator characters. </p>
<p>Example: '/' and ':' on Unix, '\' and ';' on Windows. </p>
<dl class="stable"><dt><b><a class="el" href="stable.html#_stable000480">Stable:</a></b></dt><dd>ICU 2.0 </dd></dl>
<p>Definition at line <a class="el" href="putil_8h_source.html#l00099">99</a> of file <a class="el" href="putil_8h_source.html">putil.h</a>.</p>
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<td class="memname">#define U_PATH_SEP_STRING   ";"</td>
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<p>Filesystem file and path separator characters. </p>
<p>Example: '/' and ':' on Unix, '\' and ';' on Windows. </p>
<dl class="stable"><dt><b><a class="el" href="stable.html#_stable000480">Stable:</a></b></dt><dd>ICU 2.0 </dd></dl>
<p>Definition at line <a class="el" href="putil_8h_source.html#l00102">102</a> of file <a class="el" href="putil_8h_source.html">putil.h</a>.</p>
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<h2 class="groupheader">Function Documentation</h2>
<a class="anchor" id="ad2ba2f88b01ea212f2bfbe2c6b0854a7"></a>
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<td class="memname">void u_charsToUChars </td>
<td>(</td>
<td class="paramtype">const char * </td>
<td class="paramname"><em>cs</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="umachine_8h.html#a6bb9fad572d65b305324ef288165e2ac">UChar</a> * </td>
<td class="paramname"><em>us</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">int32_t </td>
<td class="paramname"><em>length</em> </td>
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<td>)</td>
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<p>Convert char characters to UChar characters. </p>
<p>This utility function is useful only for "invariant characters" that are encoded in the platform default encoding. They are a small, constant subset of the encoding and include just the latin letters, digits, and some punctuation. For details, see U_CHARSET_FAMILY.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">cs</td><td>Input string, points to <code>length</code> character bytes from a subset of the platform encoding. </td></tr>
<tr><td class="paramname">us</td><td>Output string, points to memory for <code>length</code> Unicode characters. </td></tr>
<tr><td class="paramname">length</td><td>The number of characters to convert; this may include the terminating <code>NUL</code>.</td></tr>
</table>
</dd>
</dl>
<dl class="section see"><dt>See Also</dt><dd><a class="el" href="platform_8h.html#a7fb0b0fede299f9d74973b15e79d3085">U_CHARSET_FAMILY</a> </dd></dl>
<dl class="stable"><dt><b><a class="el" href="stable.html#_stable000481">Stable:</a></b></dt><dd>ICU 2.0 </dd></dl>
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<td class="memname">const char* u_getDataDirectory </td>
<td>(</td>
<td class="paramtype">void </td>
<td class="paramname"></td><td>)</td>
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<p>Platform utilities isolates the platform dependencies of the libarary. </p>
<p>For each platform which this code is ported to, these functions may have to be re-implemented. Return the ICU data directory. The data directory is where common format ICU data files (.dat files) are loaded from. Note that normal use of the built-in ICU facilities does not require loading of an external data file; unless you are adding custom data to ICU, the data directory does not need to be set.</p>
<p>The data directory is determined as follows: If <a class="el" href="putil_8h.html#ab03241e29fc619a4b3f7737e98aa08ef" title="Set the ICU data directory. ">u_setDataDirectory()</a> has been called, that is it, otherwise if the ICU_DATA environment variable is set, use that, otherwise If a data directory was specifed at ICU build time <code> </p>
<div class="fragment"><div class="line"><span class="preprocessor">#define ICU_DATA_DIR "path" </span></div>
</div><!-- fragment --><p> </code> use that, otherwise no data directory is available.</p>
<dl class="section return"><dt>Returns</dt><dd>the data directory, or an empty string ("") if no data directory has been specified.</dd></dl>
<dl class="stable"><dt><b><a class="el" href="stable.html#_stable000478">Stable:</a></b></dt><dd>ICU 2.0 </dd></dl>
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<td class="memname">void u_setDataDirectory </td>
<td>(</td>
<td class="paramtype">const char * </td>
<td class="paramname"><em>directory</em></td><td>)</td>
<td></td>
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<p>Set the ICU data directory. </p>
<p>The data directory is where common format ICU data files (.dat files) are loaded from. Note that normal use of the built-in ICU facilities does not require loading of an external data file; unless you are adding custom data to ICU, the data directory does not need to be set.</p>
<p>This function should be called at most once in a process, before the first ICU operation (e.g., <a class="el" href="uclean_8h.html#ab6a4215b45b2162889aa1ff01e491d4c" title="Initialize ICU. ">u_init()</a>) that will require the loading of an ICU data file. This function is not thread-safe. Use it before calling ICU APIs from multiple threads.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">directory</td><td>The directory to be set.</td></tr>
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</dd>
</dl>
<dl class="section see"><dt>See Also</dt><dd><a class="el" href="uclean_8h.html#ab6a4215b45b2162889aa1ff01e491d4c" title="Initialize ICU. ">u_init</a> </dd></dl>
<dl class="stable"><dt><b><a class="el" href="stable.html#_stable000479">Stable:</a></b></dt><dd>ICU 2.0 </dd></dl>
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<td class="memname">void u_UCharsToChars </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="umachine_8h.html#a6bb9fad572d65b305324ef288165e2ac">UChar</a> * </td>
<td class="paramname"><em>us</em>, </td>
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<td class="paramtype">char * </td>
<td class="paramname"><em>cs</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">int32_t </td>
<td class="paramname"><em>length</em> </td>
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<td>)</td>
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<p>Convert UChar characters to char characters. </p>
<p>This utility function is useful only for "invariant characters" that can be encoded in the platform default encoding. They are a small, constant subset of the encoding and include just the latin letters, digits, and some punctuation. For details, see U_CHARSET_FAMILY.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">us</td><td>Input string, points to <code>length</code> Unicode characters that can be encoded with the codepage-invariant subset of the platform encoding. </td></tr>
<tr><td class="paramname">cs</td><td>Output string, points to memory for <code>length</code> character bytes. </td></tr>
<tr><td class="paramname">length</td><td>The number of characters to convert; this may include the terminating <code>NUL</code>.</td></tr>
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<dl class="section see"><dt>See Also</dt><dd><a class="el" href="platform_8h.html#a7fb0b0fede299f9d74973b15e79d3085">U_CHARSET_FAMILY</a> </dd></dl>
<dl class="stable"><dt><b><a class="el" href="stable.html#_stable000482">Stable:</a></b></dt><dd>ICU 2.0 </dd></dl>
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