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<title>include/sys/types.h</title>
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<a name='TOP'><h2><a href='../mains.html'>root</a>/<a href='../files/99.html'>include</a>/<a href='../files/102.html'>sys</a>/types.h</h2>
<i><font color='green'>/* [<][>]<a href='#L40'>[^]</a><a href='#L45'>[v]</a>[top]<a href='#BOTTOM'>[bottom]</a><a href='../mains.html'>[index]</a><a href='../help.html'>[help]</a> */</font></i>
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<h2><a href='../J/45.html' title='Multiple included from 13 places.'>INCLUDED FROM</a></h2>
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<h2>DEFINITIONS</h2>
This source file includes following definitions.
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<li><a href='#L40' title='Defined at 40.'>div_t</a>
<li><a href='#L45' title='Defined at 45.'>ldiv_t</a>
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<a name='L1'><font color='darkred'>#ifndef</font> <a href='../S/45.html#L2' title='Defined at 2 in include/sys/types.h.'>_SYS_TYPES_H</a>
<a name='L2'><font color='darkred'>#define</font> <a href='../S/45.html#L1' title='Refered from 1 in include/sys/types.h.'>_SYS_TYPES_H</a>
<a name='L3'>
<a name='L4'><font color='darkred'>#ifndef</font> <a href='../D/595.html' title='Multiple defined in 4 places.'>_SIZE_T</a>
<a name='L5'><font color='darkred'>#define</font> <a href='../R/346.html' title='Multiple refered from 4 places.'>_SIZE_T</a>
<a name='L6'><b>typedef</b> <b>unsigned</b> <b>int</b> <a href='../R/611.html' title='Multiple refered from 2 places.'>size_t</a>; <i><font color='green'>// 用于对象的大小（长度）。</font></i>
<a name='L7'><font color='darkred'>#endif</font>
<a name='L8'>
<a name='L9'><font color='darkred'>#ifndef</font> <a href='../D/607.html' title='Multiple defined in 2 places.'>_TIME_T</a>
<a name='L10'><font color='darkred'>#define</font> <a href='../R/358.html' title='Multiple refered from 2 places.'>_TIME_T</a>
<a name='L11'><b>typedef</b> <b>long</b> <a href='../R/703.html' title='Multiple refered from 19 places.'>time_t</a>; <i><font color='green'>// 用于时间（以秒计）。</font></i>
<a name='L12'><font color='darkred'>#endif</font>
<a name='L13'>
<a name='L14'><font color='darkred'>#ifndef</font> <a href='../D/583.html' title='Multiple defined in 2 places.'>_PTRDIFF_T</a>
<a name='L15'><font color='darkred'>#define</font> <a href='../R/342.html' title='Multiple refered from 2 places.'>_PTRDIFF_T</a>
<a name='L16'><b>typedef</b> <b>long</b> <a href='../S/50.html#L218' title='Refered from 218 in include/unistd.h.'>ptrdiff_t</a>;
<a name='L17'><font color='darkred'>#endif</font>
<a name='L18'>
<a name='L19'><font color='darkred'>#ifndef</font> <a href='../D/261.html' title='Multiple defined in 12 places.'>NULL</a>
<a name='L20'><font color='darkred'>#define</font> <a href='../R/149.html' title='Multiple refered from 109 places.'>NULL</a> ((<b>void</b> *) 0)
<a name='L21'><font color='darkred'>#endif</font>
<a name='L22'>
<a name='L23'><b>typedef</b> <b>int</b> <a href='../R/549.html' title='Multiple refered from 13 places.'>pid_t</a>; <i><font color='green'>// 用于进程号和进程组号。</font></i>
<a name='L24'><b>typedef</b> <b>unsigned</b> <b>short</b> <a href='../R/716.html' title='Multiple refered from 3 places.'>uid_t</a>; <i><font color='green'>// 用于用户号（用户标识号）。</font></i>
<a name='L25'><b>typedef</b> <b>unsigned</b> <b>char</b> <a href='../R/491.html' title='Multiple refered from 3 places.'>gid_t</a>; <i><font color='green'>// 用于组号。</font></i>
<a name='L26'><b>typedef</b> <b>unsigned</b> <b>short</b> <a href='../R/432.html' title='Multiple refered from 4 places.'>dev_t</a>; <i><font color='green'>// 用于设备号。</font></i>
<a name='L27'><b>typedef</b> <b>unsigned</b> <b>short</b> <a href='../R/503.html' title='Multiple refered from 2 places.'>ino_t</a>; <i><font color='green'>// 用于文件序列号。</font></i>
<a name='L28'><b>typedef</b> <b>unsigned</b> <b>short</b> <a href='../R/531.html' title='Multiple refered from 10 places.'>mode_t</a>; <i><font color='green'>// 用于某些文件属性。</font></i>
<a name='L29'><b>typedef</b> <b>unsigned</b> <b>short</b> <a href='../S/43.html#L10' title='Refered from 10 in include/sys/stat.h.'>umode_t</a>; <i><font color='green'>//</font></i>
<a name='L30'><b>typedef</b> <b>unsigned</b> <b>char</b> <a href='../S/43.html#L11' title='Refered from 11 in include/sys/stat.h.'>nlink_t</a>; <i><font color='green'>// 用于连接计数。</font></i>
<a name='L31'><b>typedef</b> <b>int</b> <a href='../S/45.html#L49' title='Refered from 49 in include/sys/types.h.'>daddr_t</a>;
<a name='L32'><b>typedef</b> <b>long</b> <a href='../R/540.html' title='Multiple refered from 13 places.'>off_t</a>; <i><font color='green'>// 用于文件长度（大小）。</font></i>
<a name='L33'><b>typedef</b> <b>unsigned</b> <b>char</b> u_char; <i><font color='green'>// 无符号字符类型。</font></i>
<a name='L34'><b>typedef</b> <b>unsigned</b> <b>short</b> ushort; <i><font color='green'>// 无符号短整数类型。</font></i>
<a name='L35'>
<a name='L36'><b>typedef</b> <b>struct</b>
<a name='L37'><font color='red'>{</font>
<a name='L38'> <b>int</b> quot, rem;
<a name='L39'><font color='red'>}</font>
<a name='L40'>div_t; <i><font color='green'>// 用于DIV 操作。</font></i>
<a name='L41'><b>typedef</b> <b>struct</b>
<a name='L42'><font color='red'>{</font>
<a name='L43'> <b>long</b> quot, rem;
<a name='L44'><font color='red'>}</font>
<a name='L45'>ldiv_t; <i><font color='green'>// 用于长DIV 操作。</font></i>
<a name='L46'>
<a name='L47'><b>struct</b> ustat
<a name='L48'><font color='red'>{</font>
<a name='L49'> <a href='../S/45.html#L31' title='Defined at 31 in include/sys/types.h.'>daddr_t</a> f_tfree;
<a name='L50'> <a href='../S/45.html#L27' title='Defined at 27 in include/sys/types.h.'>ino_t</a> f_tinode;
<a name='L51'> <b>char</b> f_fname[6];
<a name='L52'> <b>char</b> f_fpack[6];
<a name='L53'><font color='red'>}</font>;
<a name='L54'>
<a name='L55'><font color='darkred'>#endif</font>
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