1<html lang="en"> 2<head> 3<title>wcsxfrm - Untitled</title> 4<meta http-equiv="Content-Type" content="text/html"> 5<meta name="description" content="Untitled"> 6<meta name="generator" content="makeinfo 4.13"> 7<link title="Top" rel="start" href="index.html#Top"> 8<link rel="up" href="Wchar-strings.html#Wchar-strings" title="Wchar strings"> 9<link rel="prev" href="wcswidth.html#wcswidth" title="wcswidth"> 10<link rel="next" href="wcwidth.html#wcwidth" title="wcwidth"> 11<link href="http://www.gnu.org/software/texinfo/" rel="generator-home" title="Texinfo Homepage"> 12<meta http-equiv="Content-Style-Type" content="text/css"> 13<style type="text/css"><!-- 14 pre.display { font-family:inherit } 15 pre.format { font-family:inherit } 16 pre.smalldisplay { font-family:inherit; font-size:smaller } 17 pre.smallformat { font-family:inherit; font-size:smaller } 18 pre.smallexample { font-size:smaller } 19 pre.smalllisp { font-size:smaller } 20 span.sc { font-variant:small-caps } 21 span.roman { font-family:serif; font-weight:normal; } 22 span.sansserif { font-family:sans-serif; font-weight:normal; } 23--></style> 24<link rel="stylesheet" type="text/css" href="../cs.css"> 25</head> 26<body> 27<div class="node"> 28<a name="wcsxfrm"></a> 29<p> 30Next: <a rel="next" accesskey="n" href="wcwidth.html#wcwidth">wcwidth</a>, 31Previous: <a rel="previous" accesskey="p" href="wcswidth.html#wcswidth">wcswidth</a>, 32Up: <a rel="up" accesskey="u" href="Wchar-strings.html#Wchar-strings">Wchar strings</a> 33<hr> 34</div> 35 36<h3 class="section">6.28 <code>wcsxfrm</code>—locale-specific wide-character string transformation</h3> 37 38<p><a name="index-wcsxfrm-421"></a><strong>Synopsis</strong> 39<pre class="example"> #include <wchar.h> 40 int wcsxfrm(wchar_t *<var>stra</var>, const wchar_t * <var>strb</var>, size_t <var>n</var>); 41 42</pre> 43 <p><strong>Description</strong><br> 44<code>wcsxfrm</code> transforms the wide-character string pointed to by 45<var>strb</var> to the wide-character string pointed to by <var>stra</var>, 46Comparing two transformed wide strings with <code>wcscmp</code> should return 47the same result as comparing the original strings with <code>wcscoll</code>. 48No more than <var>n</var> wide characters are transformed, including the 49trailing null character. 50 51 <p>If <var>n</var> is 0, <var>stra</var> may be a NULL pointer. 52 53 <p>The current implementation of <code>wcsxfrm</code> simply uses <code>wcslcpy</code> 54and does not support any language-specific transformations. 55 56 <p><br> 57<strong>Returns</strong><br> 58<code>wcsxfrm</code> returns the length of the transformed wide character 59string. if the return value is greater or equal to <var>n</var>, the 60content of <var>stra</var> is undefined. 61 62 <p><br> 63<strong>Portability</strong><br> 64<code>wcsxfrm</code> is ISO/IEC 9899/AMD1:1995 (ISO C). 65 66 <p><br> 67 68 </body></html> 69 70