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 <span id="projectnumber">4.8.1.1</span>
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<p>Basic types and constants for UTF.
<a href="#details">More...</a></p>
<div class="textblock"><code>#include "unicode/ptypes.h"</code><br/>
<code>#include <stddef.h></code><br/>
<code>#include "unicode/urename.h"</code><br/>
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<p><a href="umachine_8h_source.html">Go to the source code of this file.</a></p>
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<tr class="heading"><td colspan="2"><h2><a name="define-members"></a>
Macros</h2></td></tr>
<tr class="memitem:af702d65cba0638c5a8194cccc8d7c39e"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="umachine_8h.html#af702d65cba0638c5a8194cccc8d7c39e">U_CFUNC</a>   extern</td></tr>
<tr class="memdesc:af702d65cba0638c5a8194cccc8d7c39e"><td class="mdescLeft"> </td><td class="mdescRight">This is used in a declaration of a library private ICU C function. <a href="#af702d65cba0638c5a8194cccc8d7c39e"></a><br/></td></tr>
<tr class="memitem:a82c853d86803ab75c89267be54fbac6a"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="umachine_8h.html#a82c853d86803ab75c89267be54fbac6a">U_CDECL_BEGIN</a></td></tr>
<tr class="memdesc:a82c853d86803ab75c89267be54fbac6a"><td class="mdescLeft"> </td><td class="mdescRight">This is used to begin a declaration of a library private ICU C API. <a href="#a82c853d86803ab75c89267be54fbac6a"></a><br/></td></tr>
<tr class="memitem:a1a820e5c6cbe8ac1742b654e6bf9ed7d"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="umachine_8h.html#a1a820e5c6cbe8ac1742b654e6bf9ed7d">U_CDECL_END</a></td></tr>
<tr class="memdesc:a1a820e5c6cbe8ac1742b654e6bf9ed7d"><td class="mdescLeft"> </td><td class="mdescRight">This is used to end a declaration of a library private ICU C API. <a href="#a1a820e5c6cbe8ac1742b654e6bf9ed7d"></a><br/></td></tr>
<tr class="memitem:a1f2a107433f276c69c8f8ab826fe6374"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="umachine_8h.html#a1f2a107433f276c69c8f8ab826fe6374">U_ATTRIBUTE_DEPRECATED</a></td></tr>
<tr class="memdesc:a1f2a107433f276c69c8f8ab826fe6374"><td class="mdescLeft"> </td><td class="mdescRight">This is used for GCC specific attributes. <a href="#a1f2a107433f276c69c8f8ab826fe6374"></a><br/></td></tr>
<tr class="memitem:a676114b1a64bb7c2de15c919a00b28df"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="umachine_8h.html#a676114b1a64bb7c2de15c919a00b28df">U_CAPI</a>   <a class="el" href="umachine_8h.html#af702d65cba0638c5a8194cccc8d7c39e">U_CFUNC</a> <a class="el" href="pwin32_8h.html#a7d78411159504c2d6770763f924a1792">U_EXPORT</a></td></tr>
<tr class="memdesc:a676114b1a64bb7c2de15c919a00b28df"><td class="mdescLeft"> </td><td class="mdescRight">This is used to declare a function as a public ICU C API. <a href="#a676114b1a64bb7c2de15c919a00b28df"></a><br/></td></tr>
<tr class="memitem:af3e3799716eaa41e3f49c7bf18c62b98"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="af3e3799716eaa41e3f49c7bf18c62b98"></a>
#define </td><td class="memItemRight" valign="bottom"><a class="el" href="umachine_8h.html#af3e3799716eaa41e3f49c7bf18c62b98">U_STABLE</a>   <a class="el" href="umachine_8h.html#a676114b1a64bb7c2de15c919a00b28df">U_CAPI</a></td></tr>
<tr class="memdesc:af3e3799716eaa41e3f49c7bf18c62b98"><td class="mdescLeft"> </td><td class="mdescRight">This is used to declare a function as a stable public ICU C API. <br/></td></tr>
<tr class="memitem:a41691e68155dca13bc1f020fa30dac82"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a41691e68155dca13bc1f020fa30dac82"></a>
#define </td><td class="memItemRight" valign="bottom"><a class="el" href="umachine_8h.html#a41691e68155dca13bc1f020fa30dac82">U_DRAFT</a>   <a class="el" href="umachine_8h.html#a676114b1a64bb7c2de15c919a00b28df">U_CAPI</a></td></tr>
<tr class="memdesc:a41691e68155dca13bc1f020fa30dac82"><td class="mdescLeft"> </td><td class="mdescRight">This is used to declare a function as a draft public ICU C API. <br/></td></tr>
<tr class="memitem:a15493bbbc3793fa60b33cad4955430a0"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a15493bbbc3793fa60b33cad4955430a0"></a>
#define </td><td class="memItemRight" valign="bottom"><a class="el" href="umachine_8h.html#a15493bbbc3793fa60b33cad4955430a0">U_DEPRECATED</a>   <a class="el" href="umachine_8h.html#a676114b1a64bb7c2de15c919a00b28df">U_CAPI</a> <a class="el" href="umachine_8h.html#a1f2a107433f276c69c8f8ab826fe6374">U_ATTRIBUTE_DEPRECATED</a></td></tr>
<tr class="memdesc:a15493bbbc3793fa60b33cad4955430a0"><td class="mdescLeft"> </td><td class="mdescRight">This is used to declare a function as a deprecated public ICU C API. <br/></td></tr>
<tr class="memitem:a1f8a29b64d3745f904fde5d8830d98f5"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a1f8a29b64d3745f904fde5d8830d98f5"></a>
#define </td><td class="memItemRight" valign="bottom"><a class="el" href="umachine_8h.html#a1f8a29b64d3745f904fde5d8830d98f5">U_OBSOLETE</a>   <a class="el" href="umachine_8h.html#a676114b1a64bb7c2de15c919a00b28df">U_CAPI</a></td></tr>
<tr class="memdesc:a1f8a29b64d3745f904fde5d8830d98f5"><td class="mdescLeft"> </td><td class="mdescRight">This is used to declare a function as an obsolete public ICU C API. <br/></td></tr>
<tr class="memitem:a161dba69f4e479c3626793efc42f94ba"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a161dba69f4e479c3626793efc42f94ba"></a>
#define </td><td class="memItemRight" valign="bottom"><a class="el" href="umachine_8h.html#a161dba69f4e479c3626793efc42f94ba">U_INTERNAL</a>   <a class="el" href="umachine_8h.html#a676114b1a64bb7c2de15c919a00b28df">U_CAPI</a></td></tr>
<tr class="memdesc:a161dba69f4e479c3626793efc42f94ba"><td class="mdescLeft"> </td><td class="mdescRight">This is used to declare a function as an internal ICU C API. <br/></td></tr>
<tr class="memitem:aadcf2a81af243df333b31efa6461ab8e"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="umachine_8h.html#aadcf2a81af243df333b31efa6461ab8e">INT8_MIN</a>   ((<a class="el" href="pwin32_8h.html#aef44329758059c91c76d334e8fc09700">int8_t</a>)(-128))</td></tr>
<tr class="memdesc:aadcf2a81af243df333b31efa6461ab8e"><td class="mdescLeft"> </td><td class="mdescRight">The smallest value an 8 bit signed integer can hold. <a href="#aadcf2a81af243df333b31efa6461ab8e"></a><br/></td></tr>
<tr class="memitem:ad4e9955955b27624963643eac448118a"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="umachine_8h.html#ad4e9955955b27624963643eac448118a">INT16_MIN</a>   ((<a class="el" href="pwin32_8h.html#a269259c924dce846340ddbb810db2e3c">int16_t</a>)(-32767-1))</td></tr>
<tr class="memdesc:ad4e9955955b27624963643eac448118a"><td class="mdescLeft"> </td><td class="mdescRight">The smallest value a 16 bit signed integer can hold. <a href="#ad4e9955955b27624963643eac448118a"></a><br/></td></tr>
<tr class="memitem:a688eb21a22db27c2b2bd5836943cdcbe"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="umachine_8h.html#a688eb21a22db27c2b2bd5836943cdcbe">INT32_MIN</a>   ((<a class="el" href="pwin32_8h.html#ab1967d8591af1a4e48c37fd2b0f184d0">int32_t</a>)(-2147483647-1))</td></tr>
<tr class="memdesc:a688eb21a22db27c2b2bd5836943cdcbe"><td class="mdescLeft"> </td><td class="mdescRight">The smallest value a 32 bit signed integer can hold. <a href="#a688eb21a22db27c2b2bd5836943cdcbe"></a><br/></td></tr>
<tr class="memitem:aaf7f29f45f1a513b4748a4e5014ddf6a"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="umachine_8h.html#aaf7f29f45f1a513b4748a4e5014ddf6a">INT8_MAX</a>   ((<a class="el" href="pwin32_8h.html#aef44329758059c91c76d334e8fc09700">int8_t</a>)(127))</td></tr>
<tr class="memdesc:aaf7f29f45f1a513b4748a4e5014ddf6a"><td class="mdescLeft"> </td><td class="mdescRight">The largest value an 8 bit signed integer can hold. <a href="#aaf7f29f45f1a513b4748a4e5014ddf6a"></a><br/></td></tr>
<tr class="memitem:ac58f2c111cc9989c86db2a7dc4fd84ca"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="umachine_8h.html#ac58f2c111cc9989c86db2a7dc4fd84ca">INT16_MAX</a>   ((<a class="el" href="pwin32_8h.html#a269259c924dce846340ddbb810db2e3c">int16_t</a>)(32767))</td></tr>
<tr class="memdesc:ac58f2c111cc9989c86db2a7dc4fd84ca"><td class="mdescLeft"> </td><td class="mdescRight">The largest value a 16 bit signed integer can hold. <a href="#ac58f2c111cc9989c86db2a7dc4fd84ca"></a><br/></td></tr>
<tr class="memitem:a181807730d4a375f848ba139813ce04f"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="umachine_8h.html#a181807730d4a375f848ba139813ce04f">INT32_MAX</a>   ((<a class="el" href="pwin32_8h.html#ab1967d8591af1a4e48c37fd2b0f184d0">int32_t</a>)(2147483647))</td></tr>
<tr class="memdesc:a181807730d4a375f848ba139813ce04f"><td class="mdescLeft"> </td><td class="mdescRight">The largest value a 32 bit signed integer can hold. <a href="#a181807730d4a375f848ba139813ce04f"></a><br/></td></tr>
<tr class="memitem:aeb4e270a084ee26fe73e799861bd0252"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="umachine_8h.html#aeb4e270a084ee26fe73e799861bd0252">UINT8_MAX</a>   ((<a class="el" href="pwin32_8h.html#aba7bc1797add20fe3efdf37ced1182c5">uint8_t</a>)(255U))</td></tr>
<tr class="memdesc:aeb4e270a084ee26fe73e799861bd0252"><td class="mdescLeft"> </td><td class="mdescRight">The largest value an 8 bit unsigned integer can hold. <a href="#aeb4e270a084ee26fe73e799861bd0252"></a><br/></td></tr>
<tr class="memitem:a3ea490c9b3617d4479bd80ef93cd5602"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="umachine_8h.html#a3ea490c9b3617d4479bd80ef93cd5602">UINT16_MAX</a>   ((<a class="el" href="pwin32_8h.html#a273cf69d639a59973b6019625df33e30">uint16_t</a>)(65535U))</td></tr>
<tr class="memdesc:a3ea490c9b3617d4479bd80ef93cd5602"><td class="mdescLeft"> </td><td class="mdescRight">The largest value a 16 bit unsigned integer can hold. <a href="#a3ea490c9b3617d4479bd80ef93cd5602"></a><br/></td></tr>
<tr class="memitem:ab5eb23180f7cc12b7d6c04a8ec067fdd"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="umachine_8h.html#ab5eb23180f7cc12b7d6c04a8ec067fdd">UINT32_MAX</a>   ((<a class="el" href="pwin32_8h.html#a435d1572bf3f880d55459d9805097f62">uint32_t</a>)(4294967295U))</td></tr>
<tr class="memdesc:ab5eb23180f7cc12b7d6c04a8ec067fdd"><td class="mdescLeft"> </td><td class="mdescRight">The largest value a 32 bit unsigned integer can hold. <a href="#ab5eb23180f7cc12b7d6c04a8ec067fdd"></a><br/></td></tr>
<tr class="memitem:a22369e5d04efcda4162fdb0f5759318e"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="umachine_8h.html#a22369e5d04efcda4162fdb0f5759318e">INT64_C</a>(c)   c ## LL</td></tr>
<tr class="memdesc:a22369e5d04efcda4162fdb0f5759318e"><td class="mdescLeft"> </td><td class="mdescRight">Provides a platform independent way to specify a signed 64-bit integer constant. <a href="#a22369e5d04efcda4162fdb0f5759318e"></a><br/></td></tr>
<tr class="memitem:a26a7bac63d90ef61175acb9f6fc4f2ca"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="umachine_8h.html#a26a7bac63d90ef61175acb9f6fc4f2ca">UINT64_C</a>(c)   c ## ULL</td></tr>
<tr class="memdesc:a26a7bac63d90ef61175acb9f6fc4f2ca"><td class="mdescLeft"> </td><td class="mdescRight">Provides a platform independent way to specify an unsigned 64-bit integer constant. <a href="#a26a7bac63d90ef61175acb9f6fc4f2ca"></a><br/></td></tr>
<tr class="memitem:ac1c596cb43b0e0da0ab1da5a20dbc502"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="umachine_8h.html#ac1c596cb43b0e0da0ab1da5a20dbc502">U_INT64_MIN</a>   ((<a class="el" href="pwin32_8h.html#adec1df1b8b51cb32b77e5b86fff46471">int64_t</a>)(<a class="el" href="umachine_8h.html#a22369e5d04efcda4162fdb0f5759318e">INT64_C</a>(-9223372036854775807)-1))</td></tr>
<tr class="memdesc:ac1c596cb43b0e0da0ab1da5a20dbc502"><td class="mdescLeft"> </td><td class="mdescRight">The smallest value a 64 bit signed integer can hold. <a href="#ac1c596cb43b0e0da0ab1da5a20dbc502"></a><br/></td></tr>
<tr class="memitem:ae3e790bebd3de6c1c2010ca8e766517d"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="umachine_8h.html#ae3e790bebd3de6c1c2010ca8e766517d">U_INT64_MAX</a>   ((<a class="el" href="pwin32_8h.html#adec1df1b8b51cb32b77e5b86fff46471">int64_t</a>)(<a class="el" href="umachine_8h.html#a22369e5d04efcda4162fdb0f5759318e">INT64_C</a>(9223372036854775807)))</td></tr>
<tr class="memdesc:ae3e790bebd3de6c1c2010ca8e766517d"><td class="mdescLeft"> </td><td class="mdescRight">The largest value a 64 bit signed integer can hold. <a href="#ae3e790bebd3de6c1c2010ca8e766517d"></a><br/></td></tr>
<tr class="memitem:a476c17527f46de7a96942841fb87f770"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="umachine_8h.html#a476c17527f46de7a96942841fb87f770">U_UINT64_MAX</a>   ((<a class="el" href="pwin32_8h.html#aaa5d1cd013383c889537491c3cfd9aad">uint64_t</a>)(<a class="el" href="umachine_8h.html#a26a7bac63d90ef61175acb9f6fc4f2ca">UINT64_C</a>(18446744073709551615)))</td></tr>
<tr class="memdesc:a476c17527f46de7a96942841fb87f770"><td class="mdescLeft"> </td><td class="mdescRight">The largest value a 64 bit unsigned integer can hold. <a href="#a476c17527f46de7a96942841fb87f770"></a><br/></td></tr>
<tr class="memitem:aa8cecfc5c5c054d2875c03e77b7be15d"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="umachine_8h.html#aa8cecfc5c5c054d2875c03e77b7be15d">TRUE</a>   1</td></tr>
<tr class="memdesc:aa8cecfc5c5c054d2875c03e77b7be15d"><td class="mdescLeft"> </td><td class="mdescRight">The TRUE value of a UBool. <a href="#aa8cecfc5c5c054d2875c03e77b7be15d"></a><br/></td></tr>
<tr class="memitem:aa93f0eb578d23995850d61f7d61c55c1"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="umachine_8h.html#aa93f0eb578d23995850d61f7d61c55c1">FALSE</a>   0</td></tr>
<tr class="memdesc:aa93f0eb578d23995850d61f7d61c55c1"><td class="mdescLeft"> </td><td class="mdescRight">The FALSE value of a UBool. <a href="#aa93f0eb578d23995850d61f7d61c55c1"></a><br/></td></tr>
<tr class="memitem:ad94b7bccb609111f733a5deb7e778c0b"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="umachine_8h.html#ad94b7bccb609111f733a5deb7e778c0b">U_HAVE_WCHAR_H</a>   1</td></tr>
<tr class="memdesc:ad94b7bccb609111f733a5deb7e778c0b"><td class="mdescLeft"> </td><td class="mdescRight">Indicates whether <wchar.h> is available (1) or not (0). <a href="#ad94b7bccb609111f733a5deb7e778c0b"></a><br/></td></tr>
<tr class="memitem:a9d7490781b9ae8c2767933925a99d399"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="umachine_8h.html#a9d7490781b9ae8c2767933925a99d399">U_SIZEOF_WCHAR_T</a>   4</td></tr>
<tr class="memdesc:a9d7490781b9ae8c2767933925a99d399"><td class="mdescLeft"> </td><td class="mdescRight">U_SIZEOF_WCHAR_T==sizeof(wchar_t) (0 means it is not defined or autoconf could not set it) <a href="#a9d7490781b9ae8c2767933925a99d399"></a><br/></td></tr>
<tr class="memitem:a949bcf5953a147ca7724397dfe230ee5"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="umachine_8h.html#a949bcf5953a147ca7724397dfe230ee5">U_SIZEOF_UCHAR</a>   2</td></tr>
<tr class="memdesc:a949bcf5953a147ca7724397dfe230ee5"><td class="mdescLeft"> </td><td class="mdescRight">Number of bytes in a UChar. <a href="#a949bcf5953a147ca7724397dfe230ee5"></a><br/></td></tr>
<tr class="memitem:a13f03038f26c97ab622b357d31e17d08"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="umachine_8h.html#a13f03038f26c97ab622b357d31e17d08">U_ALIGN_CODE</a>(n)</td></tr>
<tr class="memdesc:a13f03038f26c97ab622b357d31e17d08"><td class="mdescLeft"> </td><td class="mdescRight">This is used to align code fragments to a specific byte boundary. <a href="#a13f03038f26c97ab622b357d31e17d08"></a><br/></td></tr>
<tr class="memitem:a640c3a986901e3824818119b71f25f55"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="umachine_8h.html#a640c3a986901e3824818119b71f25f55">U_INLINE</a></td></tr>
<tr class="memdesc:a640c3a986901e3824818119b71f25f55"><td class="mdescLeft"> </td><td class="mdescRight">This is used to request inlining of a function, on platforms and languages which support it. <a href="#a640c3a986901e3824818119b71f25f55"></a><br/></td></tr>
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<tr class="heading"><td colspan="2"><h2><a name="typedef-members"></a>
Typedefs</h2></td></tr>
<tr class="memitem:a349ef00011f20ccd1d3b424445681aa5"><td class="memItemLeft" align="right" valign="top">typedef <a class="el" href="pwin32_8h.html#aef44329758059c91c76d334e8fc09700">int8_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="umachine_8h.html#a349ef00011f20ccd1d3b424445681aa5">UBool</a></td></tr>
<tr class="memdesc:a349ef00011f20ccd1d3b424445681aa5"><td class="mdescLeft"> </td><td class="mdescRight">The ICU boolean type. <a href="#a349ef00011f20ccd1d3b424445681aa5"></a><br/></td></tr>
<tr class="memitem:a6bb9fad572d65b305324ef288165e2ac"><td class="memItemLeft" align="right" valign="top">typedef <a class="el" href="pwin32_8h.html#a273cf69d639a59973b6019625df33e30">uint16_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="umachine_8h.html#a6bb9fad572d65b305324ef288165e2ac">UChar</a></td></tr>
<tr class="memdesc:a6bb9fad572d65b305324ef288165e2ac"><td class="mdescLeft"> </td><td class="mdescRight">Define UChar to be wchar_t if that is 16 bits wide; always assumed to be unsigned. <a href="#a6bb9fad572d65b305324ef288165e2ac"></a><br/></td></tr>
<tr class="memitem:a09fff5c3b5a5b015324dc3ec3cf92809"><td class="memItemLeft" align="right" valign="top">typedef <a class="el" href="pwin32_8h.html#ab1967d8591af1a4e48c37fd2b0f184d0">int32_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="umachine_8h.html#a09fff5c3b5a5b015324dc3ec3cf92809">UChar32</a></td></tr>
<tr class="memdesc:a09fff5c3b5a5b015324dc3ec3cf92809"><td class="mdescLeft"> </td><td class="mdescRight">Define UChar32 as a type for single Unicode code points. <a href="#a09fff5c3b5a5b015324dc3ec3cf92809"></a><br/></td></tr>
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<hr/><a name="details" id="details"></a><h2>Detailed Description</h2>
<div class="textblock"><p>Basic types and constants for UTF. </p>
<h2>Basic types and constants for UTF </h2>
<p>This file defines basic types and constants for <a class="el" href="utf_8h.html" title="C API: Code point macros.">utf.h</a> to be platform-independent. <a class="el" href="umachine_8h.html" title="Basic types and constants for UTF.">umachine.h</a> and <a class="el" href="utf_8h.html" title="C API: Code point macros.">utf.h</a> are included into <a class="el" href="utypes_8h.html" title="Basic definitions for ICU, for both C and C++ APIs.">utypes.h</a> to provide all the general definitions for ICU. All of these definitions used to be in <a class="el" href="utypes_8h.html" title="Basic definitions for ICU, for both C and C++ APIs.">utypes.h</a> before the UTF-handling macros made this unmaintainable. </p>
<p>Definition in file <a class="el" href="umachine_8h_source.html">umachine.h</a>.</p>
</div><hr/><h2>Macro Definition Documentation</h2>
<a class="anchor" id="aa93f0eb578d23995850d61f7d61c55c1"></a>
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<p>The FALSE value of a UBool. </p>
<dl class="stable"><dt><b><a class="el" href="stable.html#_stable001431">Stable:</a></b></dt><dd>ICU 2.0 </dd></dl>
<p>Definition at line <a class="el" href="umachine_8h_source.html#l00236">236</a> of file <a class="el" href="umachine_8h_source.html">umachine.h</a>.</p>
<p>Referenced by <a class="el" href="unistr_8h_source.html#l04346">UnicodeString::append()</a>, <a class="el" href="bytestrie_8h_source.html#l00222">BytesTrie::hasUniqueValue()</a>, <a class="el" href="ucharstrie_8h_source.html#l00249">UCharsTrie::hasUniqueValue()</a>, <a class="el" href="parsepos_8h_source.html#l00191">ParsePosition::operator==()</a>, <a class="el" href="unistr_8h_source.html#l04048">UnicodeString::replace()</a>, and <a class="el" href="unistr_8h_source.html#l04440">UnicodeString::truncate()</a>.</p>
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<td class="memname">#define INT16_MAX   ((<a class="el" href="pwin32_8h.html#a269259c924dce846340ddbb810db2e3c">int16_t</a>)(32767))</td>
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<p>The largest value a 16 bit signed integer can hold. </p>
<dl class="stable"><dt><b><a class="el" href="stable.html#_stable001419">Stable:</a></b></dt><dd>ICU 2.0 </dd></dl>
<p>Definition at line <a class="el" href="umachine_8h_source.html#l00170">170</a> of file <a class="el" href="umachine_8h_source.html">umachine.h</a>.</p>
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<td class="memname">#define INT16_MIN   ((<a class="el" href="pwin32_8h.html#a269259c924dce846340ddbb810db2e3c">int16_t</a>)(-32767-1))</td>
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<p>The smallest value a 16 bit signed integer can hold. </p>
<dl class="stable"><dt><b><a class="el" href="stable.html#_stable001416">Stable:</a></b></dt><dd>ICU 2.0 </dd></dl>
<p>Definition at line <a class="el" href="umachine_8h_source.html#l00157">157</a> of file <a class="el" href="umachine_8h_source.html">umachine.h</a>.</p>
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<td class="memname">#define INT32_MAX   ((<a class="el" href="pwin32_8h.html#ab1967d8591af1a4e48c37fd2b0f184d0">int32_t</a>)(2147483647))</td>
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<p>The largest value a 32 bit signed integer can hold. </p>
<dl class="stable"><dt><b><a class="el" href="stable.html#_stable001420">Stable:</a></b></dt><dd>ICU 2.0 </dd></dl>
<p>Definition at line <a class="el" href="umachine_8h_source.html#l00174">174</a> of file <a class="el" href="umachine_8h_source.html">umachine.h</a>.</p>
<p>Referenced by <a class="el" href="unistr_8h_source.html#l04418">UnicodeString::remove()</a>.</p>
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<td class="memname">#define INT32_MIN   ((<a class="el" href="pwin32_8h.html#ab1967d8591af1a4e48c37fd2b0f184d0">int32_t</a>)(-2147483647-1))</td>
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<p>The smallest value a 32 bit signed integer can hold. </p>
<dl class="stable"><dt><b><a class="el" href="stable.html#_stable001417">Stable:</a></b></dt><dd>ICU 2.0 </dd></dl>
<p>Definition at line <a class="el" href="umachine_8h_source.html#l00161">161</a> of file <a class="el" href="umachine_8h_source.html">umachine.h</a>.</p>
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<td class="memname">#define INT64_C</td>
<td>(</td>
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<td>   c ## LL</td>
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<p>Provides a platform independent way to specify a signed 64-bit integer constant. </p>
<p>note: may be wrong for some 64 bit platforms - ensure your compiler provides INT64_C </p>
<dl class="stable"><dt><b><a class="el" href="stable.html#_stable001424">Stable:</a></b></dt><dd>ICU 2.8 </dd></dl>
<p>Definition at line <a class="el" href="umachine_8h_source.html#l00199">199</a> of file <a class="el" href="umachine_8h_source.html">umachine.h</a>.</p>
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<td class="memname">#define INT8_MAX   ((<a class="el" href="pwin32_8h.html#aef44329758059c91c76d334e8fc09700">int8_t</a>)(127))</td>
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<p>The largest value an 8 bit signed integer can hold. </p>
<dl class="stable"><dt><b><a class="el" href="stable.html#_stable001418">Stable:</a></b></dt><dd>ICU 2.0 </dd></dl>
<p>Definition at line <a class="el" href="umachine_8h_source.html#l00166">166</a> of file <a class="el" href="umachine_8h_source.html">umachine.h</a>.</p>
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<td class="memname">#define INT8_MIN   ((<a class="el" href="pwin32_8h.html#aef44329758059c91c76d334e8fc09700">int8_t</a>)(-128))</td>
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<p>The smallest value an 8 bit signed integer can hold. </p>
<dl class="stable"><dt><b><a class="el" href="stable.html#_stable001415">Stable:</a></b></dt><dd>ICU 2.0 </dd></dl>
<p>Definition at line <a class="el" href="umachine_8h_source.html#l00153">153</a> of file <a class="el" href="umachine_8h_source.html">umachine.h</a>.</p>
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<p>The TRUE value of a UBool. </p>
<dl class="stable"><dt><b><a class="el" href="stable.html#_stable001430">Stable:</a></b></dt><dd>ICU 2.0 </dd></dl>
<p>Definition at line <a class="el" href="umachine_8h_source.html#l00232">232</a> of file <a class="el" href="umachine_8h_source.html">umachine.h</a>.</p>
<p>Referenced by <a class="el" href="calendar_8h_source.html#l02241">Calendar::internalSet()</a>, <a class="el" href="parsepos_8h_source.html#l00191">ParsePosition::operator==()</a>, and <a class="el" href="unistr_8h_source.html#l04440">UnicodeString::truncate()</a>.</p>
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<p>This is used to align code fragments to a specific byte boundary. </p>
<p>This is useful for getting consistent performance test results. </p>
<dl class="internal"><dt><b><a class="el" href="internal.html#_internal000140">Internal:</a></b></dt><dd>Do not use. This API is for internal use only. </dd></dl>
<p>Definition at line <a class="el" href="umachine_8h_source.html#l00363">363</a> of file <a class="el" href="umachine_8h_source.html">umachine.h</a>.</p>
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<td class="memname">#define U_ATTRIBUTE_DEPRECATED</td>
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<p>This is used for GCC specific attributes. </p>
<dl class="internal"><dt><b><a class="el" href="internal.html#_internal000139">Internal:</a></b></dt><dd>Do not use.</dd></dl>
<p>This API is for internal use only. </p>
<p>Definition at line <a class="el" href="umachine_8h_source.html#l00130">130</a> of file <a class="el" href="umachine_8h_source.html">umachine.h</a>.</p>
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<td class="memname">#define U_CAPI   <a class="el" href="umachine_8h.html#af702d65cba0638c5a8194cccc8d7c39e">U_CFUNC</a> <a class="el" href="pwin32_8h.html#a7d78411159504c2d6770763f924a1792">U_EXPORT</a></td>
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<p>This is used to declare a function as a public ICU C API. </p>
<dl class="stable"><dt><b><a class="el" href="stable.html#_stable001414">Stable:</a></b></dt><dd>ICU 2.0 </dd></dl>
<p>Definition at line <a class="el" href="umachine_8h_source.html#l00135">135</a> of file <a class="el" href="umachine_8h_source.html">umachine.h</a>.</p>
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<p>This is used to begin a declaration of a library private ICU C API. </p>
<dl class="stable"><dt><b><a class="el" href="stable.html#_stable001412">Stable:</a></b></dt><dd>ICU 2.4 </dd></dl>
<p>Definition at line <a class="el" href="umachine_8h_source.html#l00110">110</a> of file <a class="el" href="umachine_8h_source.html">umachine.h</a>.</p>
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<p>This is used to end a declaration of a library private ICU C API. </p>
<dl class="stable"><dt><b><a class="el" href="stable.html#_stable001413">Stable:</a></b></dt><dd>ICU 2.4 </dd></dl>
<p>Definition at line <a class="el" href="umachine_8h_source.html#l00111">111</a> of file <a class="el" href="umachine_8h_source.html">umachine.h</a>.</p>
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<p>This is used in a declaration of a library private ICU C function. </p>
<dl class="stable"><dt><b><a class="el" href="stable.html#_stable001411">Stable:</a></b></dt><dd>ICU 2.4 </dd></dl>
<p>Definition at line <a class="el" href="umachine_8h_source.html#l00109">109</a> of file <a class="el" href="umachine_8h_source.html">umachine.h</a>.</p>
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<p>Indicates whether <wchar.h> is available (1) or not (0). </p>
<p>Set to 1 by default.</p>
<dl class="stable"><dt><b><a class="el" href="stable.html#_stable001432">Stable:</a></b></dt><dd>ICU 2.0 </dd></dl>
<p>Definition at line <a class="el" href="umachine_8h_source.html#l00253">253</a> of file <a class="el" href="umachine_8h_source.html">umachine.h</a>.</p>
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<p>This is used to request inlining of a function, on platforms and languages which support it. </p>
<dl class="internal"><dt><b><a class="el" href="internal.html#_internal000141">Internal:</a></b></dt><dd>Do not use. This API is for internal use only. </dd></dl>
<p>Definition at line <a class="el" href="umachine_8h_source.html#l00378">378</a> of file <a class="el" href="umachine_8h_source.html">umachine.h</a>.</p>
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<td class="memname">#define U_INT64_MAX   ((<a class="el" href="pwin32_8h.html#adec1df1b8b51cb32b77e5b86fff46471">int64_t</a>)(<a class="el" href="umachine_8h.html#a22369e5d04efcda4162fdb0f5759318e">INT64_C</a>(9223372036854775807)))</td>
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<p>The largest value a 64 bit signed integer can hold. </p>
<dl class="stable"><dt><b><a class="el" href="stable.html#_stable001427">Stable:</a></b></dt><dd>ICU 2.8 </dd></dl>
<p>Definition at line <a class="el" href="umachine_8h_source.html#l00215">215</a> of file <a class="el" href="umachine_8h_source.html">umachine.h</a>.</p>
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<td class="memname">#define U_INT64_MIN   ((<a class="el" href="pwin32_8h.html#adec1df1b8b51cb32b77e5b86fff46471">int64_t</a>)(<a class="el" href="umachine_8h.html#a22369e5d04efcda4162fdb0f5759318e">INT64_C</a>(-9223372036854775807)-1))</td>
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<p>The smallest value a 64 bit signed integer can hold. </p>
<dl class="stable"><dt><b><a class="el" href="stable.html#_stable001426">Stable:</a></b></dt><dd>ICU 2.8 </dd></dl>
<p>Definition at line <a class="el" href="umachine_8h_source.html#l00211">211</a> of file <a class="el" href="umachine_8h_source.html">umachine.h</a>.</p>
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<td class="memname">#define U_SIZEOF_UCHAR   2</td>
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<p>Number of bytes in a UChar. </p>
<dl class="stable"><dt><b><a class="el" href="stable.html#_stable001434">Stable:</a></b></dt><dd>ICU 2.0 </dd></dl>
<p>Definition at line <a class="el" href="umachine_8h_source.html#l00302">302</a> of file <a class="el" href="umachine_8h_source.html">umachine.h</a>.</p>
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<td class="memname">#define U_SIZEOF_WCHAR_T   4</td>
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<p>U_SIZEOF_WCHAR_T==sizeof(wchar_t) (0 means it is not defined or autoconf could not set it) </p>
<dl class="stable"><dt><b><a class="el" href="stable.html#_stable001433">Stable:</a></b></dt><dd>ICU 2.0 </dd></dl>
<p>Definition at line <a class="el" href="umachine_8h_source.html#l00264">264</a> of file <a class="el" href="umachine_8h_source.html">umachine.h</a>.</p>
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<td class="memname">#define U_UINT64_MAX   ((<a class="el" href="pwin32_8h.html#aaa5d1cd013383c889537491c3cfd9aad">uint64_t</a>)(<a class="el" href="umachine_8h.html#a26a7bac63d90ef61175acb9f6fc4f2ca">UINT64_C</a>(18446744073709551615)))</td>
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<p>The largest value a 64 bit unsigned integer can hold. </p>
<dl class="stable"><dt><b><a class="el" href="stable.html#_stable001428">Stable:</a></b></dt><dd>ICU 2.8 </dd></dl>
<p>Definition at line <a class="el" href="umachine_8h_source.html#l00219">219</a> of file <a class="el" href="umachine_8h_source.html">umachine.h</a>.</p>
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<td class="memname">#define UINT16_MAX   ((<a class="el" href="pwin32_8h.html#a273cf69d639a59973b6019625df33e30">uint16_t</a>)(65535U))</td>
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<p>The largest value a 16 bit unsigned integer can hold. </p>
<dl class="stable"><dt><b><a class="el" href="stable.html#_stable001422">Stable:</a></b></dt><dd>ICU 2.0 </dd></dl>
<p>Definition at line <a class="el" href="umachine_8h_source.html#l00183">183</a> of file <a class="el" href="umachine_8h_source.html">umachine.h</a>.</p>
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<td class="memname">#define UINT32_MAX   ((<a class="el" href="pwin32_8h.html#a435d1572bf3f880d55459d9805097f62">uint32_t</a>)(4294967295U))</td>
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<p>The largest value a 32 bit unsigned integer can hold. </p>
<dl class="stable"><dt><b><a class="el" href="stable.html#_stable001423">Stable:</a></b></dt><dd>ICU 2.0 </dd></dl>
<p>Definition at line <a class="el" href="umachine_8h_source.html#l00187">187</a> of file <a class="el" href="umachine_8h_source.html">umachine.h</a>.</p>
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<td class="memname">#define UINT64_C</td>
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<td>   c ## ULL</td>
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<p>Provides a platform independent way to specify an unsigned 64-bit integer constant. </p>
<p>note: may be wrong for some 64 bit platforms - ensure your compiler provides UINT64_C </p>
<dl class="stable"><dt><b><a class="el" href="stable.html#_stable001425">Stable:</a></b></dt><dd>ICU 2.8 </dd></dl>
<p>Definition at line <a class="el" href="umachine_8h_source.html#l00207">207</a> of file <a class="el" href="umachine_8h_source.html">umachine.h</a>.</p>
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<td class="memname">#define UINT8_MAX   ((<a class="el" href="pwin32_8h.html#aba7bc1797add20fe3efdf37ced1182c5">uint8_t</a>)(255U))</td>
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<p>The largest value an 8 bit unsigned integer can hold. </p>
<dl class="stable"><dt><b><a class="el" href="stable.html#_stable001421">Stable:</a></b></dt><dd>ICU 2.0 </dd></dl>
<p>Definition at line <a class="el" href="umachine_8h_source.html#l00179">179</a> of file <a class="el" href="umachine_8h_source.html">umachine.h</a>.</p>
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<hr/><h2>Typedef Documentation</h2>
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<td class="memname">typedef <a class="el" href="pwin32_8h.html#aef44329758059c91c76d334e8fc09700">int8_t</a> <a class="el" href="umachine_8h.html#a349ef00011f20ccd1d3b424445681aa5">UBool</a></td>
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<p>The ICU boolean type. </p>
<dl class="stable"><dt><b><a class="el" href="stable.html#_stable001429">Stable:</a></b></dt><dd>ICU 2.0 </dd></dl>
<p>Definition at line <a class="el" href="umachine_8h_source.html#l00228">228</a> of file <a class="el" href="umachine_8h_source.html">umachine.h</a>.</p>
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<td class="memname"><a class="el" href="umachine_8h.html#a6bb9fad572d65b305324ef288165e2ac">UChar</a></td>
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<p>Define UChar to be wchar_t if that is 16 bits wide; always assumed to be unsigned. </p>
<p>If wchar_t is not 16 bits wide, then define UChar to be uint16_t or char16_t because GCC >=4.4 can handle UTF16 string literals. This makes the definition of UChar platform-dependent but allows direct string type compatibility with platforms with 16-bit wchar_t types.</p>
<dl class="draft"><dt><b><a class="el" href="draft.html#_draft000233">Draft:</a></b></dt><dd>This API may be changed in the future versions and was introduced in ICU 4.4 </dd></dl>
<p>Definition at line <a class="el" href="umachine_8h_source.html#l00325">325</a> of file <a class="el" href="umachine_8h_source.html">umachine.h</a>.</p>
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<td class="memname">typedef <a class="el" href="pwin32_8h.html#ab1967d8591af1a4e48c37fd2b0f184d0">int32_t</a> <a class="el" href="umachine_8h.html#a09fff5c3b5a5b015324dc3ec3cf92809">UChar32</a></td>
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<p>Define UChar32 as a type for single Unicode code points. </p>
<p>UChar32 is a signed 32-bit integer (same as int32_t).</p>
<p>The Unicode code point range is 0..0x10ffff. All other values (negative or >=0x110000) are illegal as Unicode code points. They may be used as sentinel values to indicate "done", "error" or similar non-code point conditions.</p>
<p>Before ICU 2.4 (Jitterbug 2146), UChar32 was defined to be wchar_t if that is 32 bits wide (wchar_t may be signed or unsigned) or else to be uint32_t. That is, the definition of UChar32 was platform-dependent.</p>
<dl class="section see"><dt>See also:</dt><dd><a class="el" href="utf_8h.html#a807436737b76a72b76ddf0b900304b4a" title="This value is intended for sentinel values for APIs that (take or) return single code points (UChar32...">U_SENTINEL</a> </dd></dl>
<dl class="stable"><dt><b><a class="el" href="stable.html#_stable001435">Stable:</a></b></dt><dd>ICU 2.4 </dd></dl>
<p>Definition at line <a class="el" href="umachine_8h_source.html#l00345">345</a> of file <a class="el" href="umachine_8h_source.html">umachine.h</a>.</p>
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