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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html><head><meta name="generator" content="HTML Tidy, see www.w3.org"><meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"><link type="text/css" rel="stylesheet" href="style.css"><!-- Generated by The Open Group's rhtm tool v1.2.1 --><!-- Copyright (c) 2001-2003 The Open Group, All Rights Reserved --><title><locale.h></title></head><body bgcolor="white"><script type="text/javascript" language="JavaScript" src="../jscript/codes.js"></script><basefont size="3"> <a name="<locale.h>"></a> <a name="tag_13_25"></a><!-- <locale.h> --> <!--header start--><center><font size="2">The Open Group Base Specifications Issue 6<br>IEEE Std 1003.1, 2003 Edition<br>Copyright © 2001-2003 The IEEE and The Open Group, All Rights reserved.</font></center><!--header end--><hr size="2" noshade><h4><a name="tag_13_25_01"></a>NAME</h4><blockquote>locale.h - category macros</blockquote><h4><a name="tag_13_25_02"></a>SYNOPSIS</h4><blockquote class="synopsis"><p><tt>#include <locale.h></tt></p></blockquote><h4><a name="tag_13_25_03"></a>DESCRIPTION</h4><blockquote><div class="box"><sup>[<a href="javascript:open_code('CX')">CX</a>]</sup> <img src="../images/opt-start.gif" alt="[Option Start]"border="0"> Some of the functionality described on this reference page extends the ISO C standard. Any conflict between therequirements described here and the ISO C standard is unintentional. This volume of IEEE Std 1003.1-2001 defers tothe ISO C standard. <img src="../images/opt-end.gif" alt="[Option End]" border="0"></div><p>The <i><locale.h></i> header shall provide a definition for <b>lconv</b> structure, which shall include at least thefollowing members. (See the definitions of <i>LC_MONETARY</i> in <a href="xbd_chap07.html#tag_07_03_03"><i>LC_MONETARY</i></a> and<a href="xbd_chap07.html#tag_07_03_04"><i>LC_NUMERIC</i></a> .)</p><pre><tt>char *currency_symbolchar *decimal_pointchar frac_digitschar *groupingchar *int_curr_symbolchar int_frac_digitschar int_n_cs_precedeschar int_n_sep_by_spacechar int_n_sign_posnchar int_p_cs_precedeschar int_p_sep_by_spacechar int_p_sign_posnchar *mon_decimal_pointchar *mon_groupingchar *mon_thousands_sepchar *negative_signchar n_cs_precedeschar n_sep_by_spacechar n_sign_posnchar *positive_signchar p_cs_precedeschar p_sep_by_spacechar p_sign_posnchar *thousands_sep</tt></pre><p>The <i><locale.h></i> header shall define NULL (as defined in <a href="stddef.h.html"><i><stddef.h></i></a> ) and atleast the following as macros:</p><p><br><i>LC_ALL</i><br><i>LC_COLLATE</i><br><i>LC_CTYPE</i><br><sup>[<a href="javascript:open_code('CX')">CX</a>]</sup> <img src="../images/opt-start.gif" alt="[Option Start]" border="0"><br><i>LC_MESSAGES</i><br><img src="../images/opt-end.gif" alt="[Option End]" border="0"><br><i>LC_MONETARY</i><br><i>LC_NUMERIC</i><br><i>LC_TIME</i><br></p><p>which shall expand to distinct integer constant expressions, for use as the first argument to the <a href="../functions/setlocale.html"><i>setlocale</i>()</a> function.</p><p>Additional macro definitions, beginning with the characters <i>LC_</i> and an uppercase letter, may also be given here.</p><p>The following shall be declared as functions and may also be defined as macros. Function prototypes shall be provided.</p><pre><tt>struct lconv *localeconv (void);char *setlocale(int, const char *);</tt></pre></blockquote><hr><div class="box"><em>The following sections are informative.</em></div><h4><a name="tag_13_25_04"></a>APPLICATION USAGE</h4><blockquote><p>None.</p></blockquote><h4><a name="tag_13_25_05"></a>RATIONALE</h4><blockquote><p>None.</p></blockquote><h4><a name="tag_13_25_06"></a>FUTURE DIRECTIONS</h4><blockquote><p>None.</p></blockquote><h4><a name="tag_13_25_07"></a>SEE ALSO</h4><blockquote><p>The System Interfaces volume of IEEE Std 1003.1-2001, <a href="../functions/localeconv.html"><i>localeconv</i>()</a>,<a href="../functions/setlocale.html"><i>setlocale</i>()</a>, <a href="xbd_chap08.html#tag_08"><i>Environment Variables</i></a></p></blockquote><h4><a name="tag_13_25_08"></a>CHANGE HISTORY</h4><blockquote><p>First released in Issue 3.</p><p>Included for alignment with the ISO C standard.</p></blockquote><h4><a name="tag_13_25_09"></a>Issue 6</h4><blockquote><p>The <b>lconv</b> structure is expanded with new members ( <b>int_n_cs_precedes</b>, <b>int_n_sep_by_space</b>,<b>int_n_sign_posn</b>, <b>int_p_cs_precedes</b>, <b>int_p_sep_by_space</b>, and <b>int_p_sign_posn</b>) for alignment with theISO/IEC 9899:1999 standard.</p><p>Extensions beyond the ISO C standard are marked.</p></blockquote><div class="box"><em>End of informative text.</em></div><hr><hr size="2" noshade><center><font size="2"><!--footer start-->UNIX ® is a registered Trademark of The Open Group.<br>POSIX ® is a registered Trademark of The IEEE.<br>[ <a href="../mindex.html">Main Index</a> | <a href="../basedefs/contents.html">XBD</a> | <a href="../utilities/contents.html">XCU</a> | <a href="../functions/contents.html">XSH</a> | <a href="../xrat/contents.html">XRAT</a>]</font></center><!--footer end--><hr size="2" noshade></body></html>⌨️ 快捷键说明
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