📄 wcswidth.html

📁 unix 下的C开发手册,还用详细的例程。
💻 HTML
字号:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN"><html><head><!-- Copyright 1997 The Open Group, All Rights Reserved --><title>wcswidth</title></head><body bgcolor=white><center><font size=2>The Single UNIX &reg; Specification, Version 2<br>Copyright &copy; 1997 The Open Group</font></center><hr size=2 noshade><h4><a name = "tag_000_010_671">&nbsp;</a>NAME</h4><blockquote>wcswidth - number of column positions of a wide-character string</blockquote><h4><a name = "tag_000_010_672">&nbsp;</a>SYNOPSIS</h4><blockquote><pre><code>#include &lt;<a href="wchar.h.html">wchar.h</a>&gt;int wcswidth(const wchar_t *<i>pwcs</i>, size_t <i>n</i>);</code></pre></blockquote><h4><a name = "tag_000_010_673">&nbsp;</a>DESCRIPTION</h4><blockquote>The<i>wcswidth()</i>function determines the number of column positions required for<i>n</i>wide-character codes (or fewer than<i>n</i>wide-character codes if a null wide-character code is encountered before<i>n</i>wide-character codes are exhausted) in the string pointed to by<i>pwcs</i>.</blockquote><h4><a name = "tag_000_010_674">&nbsp;</a>RETURN VALUE</h4><blockquote>The<i>wcswidth()</i>function either returns 0 (if<i>pwcs</i>points to a null wide-character code), or returns the number ofcolumn positions to be occupied by the wide-character string pointed to by<i>pwcs</i>,or returns -1 (if any of the first<i>n</i>wide-character codes in the wide-character string pointed to by<i>pwcs</i>is not a printing wide-character code).</blockquote><h4><a name = "tag_000_010_675">&nbsp;</a>ERRORS</h4><blockquote>No errors are defined.</blockquote><h4><a name = "tag_000_010_676">&nbsp;</a>EXAMPLES</h4><blockquote>None.</blockquote><h4><a name = "tag_000_010_677">&nbsp;</a>APPLICATION USAGE</h4><blockquote>None.</blockquote><h4><a name = "tag_000_010_678">&nbsp;</a>FUTURE DIRECTIONS</h4><blockquote>None.</blockquote><h4><a name = "tag_000_010_679">&nbsp;</a>SEE ALSO</h4><blockquote><i><a href="wcwidth.html">wcwidth()</a></i>,<i><a href="wchar.h.html">&lt;wchar.h&gt;</a></i>,the definition of <b>Column Position</b> in the<b>XBD</b> specification, <b>Chapter 2</b>, <b>Glossary</b>.</blockquote><h4>DERIVATION</h4><blockquote>Derived from the MSE working draft.</blockquote><hr size=2 noshade><center><font size=2>UNIX &reg; is a registered Trademark of The Open Group.<br>Copyright &copy; 1997 The Open Group<br> [ <a href="../index.html">Main Index</a> | <a href="../xshix.html">XSH</a> | <a href="../xcuix.html">XCU</a> | <a href="../xbdix.html">XBD</a> | <a href="../cursesix.html">XCURSES</a> | <a href="../xnsix.html">XNS</a> ]</font></center><hr size=2 noshade></body></html>
⌨️ 快捷键说明

复制代码 Ctrl + C
搜索代码 Ctrl + F
全屏模式 F11
切换主题 Ctrl + Shift + D
显示快捷键 ?
增大字号 Ctrl + =
减小字号 Ctrl + -