<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <!-- Created by GNU Texinfo 6.4, http://www.gnu.org/software/texinfo/ --> <head> <title>Wchar strings (The Red Hat newlib C Library)</title> <meta name="description" content="Wchar strings (The Red Hat newlib C Library)"> <meta name="keywords" content="Wchar strings (The Red Hat newlib C Library)"> <meta name="resource-type" content="document"> <meta name="distribution" content="global"> <meta name="Generator" content="makeinfo"> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> <link href="index.html#Top" rel="start" title="Top"> <link href="Document-Index.html#Document-Index" rel="index" title="Document Index"> <link href="Document-Index.html#SEC_Contents" rel="contents" title="Table of Contents"> <link href="index.html#Top" rel="up" title="Top"> <link href="wmemchr.html#wmemchr" rel="next" title="wmemchr"> <link href="wcsncasecmp.html#wcsncasecmp" rel="prev" title="wcsncasecmp"> <style type="text/css"> <!-- a.summary-letter {text-decoration: none} blockquote.indentedblock {margin-right: 0em} blockquote.smallindentedblock {margin-right: 0em; font-size: smaller} blockquote.smallquotation {font-size: smaller} div.display {margin-left: 3.2em} div.example {margin-left: 3.2em} div.lisp {margin-left: 3.2em} div.smalldisplay {margin-left: 3.2em} div.smallexample {margin-left: 3.2em} div.smalllisp {margin-left: 3.2em} kbd {font-style: oblique} pre.display {font-family: inherit} pre.format {font-family: inherit} pre.menu-comment {font-family: serif} pre.menu-preformatted {font-family: serif} pre.smalldisplay {font-family: inherit; font-size: smaller} pre.smallexample {font-size: smaller} pre.smallformat {font-family: inherit; font-size: smaller} pre.smalllisp {font-size: smaller} span.nolinebreak {white-space: nowrap} span.roman {font-family: initial; font-weight: normal} span.sansserif {font-family: sans-serif; font-weight: normal} ul.no-bullet {list-style: none} --> </style> </head> <body lang="en"> <a name="Wchar-strings"></a> <div class="header"> <p> Next: <a href="Signals.html#Signals" accesskey="n" rel="next">Signals</a>, Previous: <a href="Strings.html#Strings" accesskey="p" rel="prev">Strings</a>, Up: <a href="index.html#Top" accesskey="u" rel="up">Top</a> [<a href="Document-Index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Document-Index.html#Document-Index" title="Index" rel="index">Index</a>]</p> </div> <hr> <a name="Wide-Character-Strings-_0028wchar_002eh_0029"></a> <h2 class="chapter">6 Wide Character Strings (<samp>wchar.h</samp>)</h2> <p>This chapter describes wide-character string-handling functions and managing areas of memory containing wide characters. The corresponding declarations are in <samp>wchar.h</samp>. </p> <table class="menu" border="0" cellspacing="0"> <tr><td align="left" valign="top">• <a href="wmemchr.html#wmemchr" accesskey="1">wmemchr</a>:</td><td> </td><td align="left" valign="top">Find wide character in memory </td></tr> <tr><td align="left" valign="top">• <a href="wmemcmp.html#wmemcmp" accesskey="2">wmemcmp</a>:</td><td> </td><td align="left" valign="top">Compare two wide-character memory areas </td></tr> <tr><td align="left" valign="top">• <a href="wmemcpy.html#wmemcpy" accesskey="3">wmemcpy</a>:</td><td> </td><td align="left" valign="top">Copy wide-character memory regions </td></tr> <tr><td align="left" valign="top">• <a href="wmemmove.html#wmemmove" accesskey="4">wmemmove</a>:</td><td> </td><td align="left" valign="top">Move possibly overlapping wide-character memory </td></tr> <tr><td align="left" valign="top">• <a href="wmempcpy.html#wmempcpy" accesskey="5">wmempcpy</a>:</td><td> </td><td align="left" valign="top">Copy wide-character memory regions and locate end </td></tr> <tr><td align="left" valign="top">• <a href="wmemset.html#wmemset" accesskey="6">wmemset</a>:</td><td> </td><td align="left" valign="top">Set an area of memory to a specified wide character </td></tr> <tr><td align="left" valign="top">• <a href="wcscat.html#wcscat" accesskey="7">wcscat</a>:</td><td> </td><td align="left" valign="top">Concatenate wide-character strings </td></tr> <tr><td align="left" valign="top">• <a href="wcschr.html#wcschr" accesskey="8">wcschr</a>:</td><td> </td><td align="left" valign="top">Search for wide character in string </td></tr> <tr><td align="left" valign="top">• <a href="wcscmp.html#wcscmp" accesskey="9">wcscmp</a>:</td><td> </td><td align="left" valign="top">Wide-character string compare </td></tr> <tr><td align="left" valign="top">• <a href="wcscoll.html#wcscoll">wcscoll</a>:</td><td> </td><td align="left" valign="top">Locale-specific wide-character string compare </td></tr> <tr><td align="left" valign="top">• <a href="wcscpy.html#wcscpy">wcscpy</a>:</td><td> </td><td align="left" valign="top">Copy wide-character string </td></tr> <tr><td align="left" valign="top">• <a href="wcpcpy.html#wcpcpy">wcpcpy</a>:</td><td> </td><td align="left" valign="top">Copy a wide-character string returning a pointer to its end </td></tr> <tr><td align="left" valign="top">• <a href="wcscspn.html#wcscspn">wcscspn</a>:</td><td> </td><td align="left" valign="top">Count wide characters not in string </td></tr> <tr><td align="left" valign="top">• <a href="wcsftime.html#wcsftime">wcsftime</a>:</td><td> </td><td align="left" valign="top">Convert date and time to a formatted wide-character string </td></tr> <tr><td align="left" valign="top">• <a href="wcslcat.html#wcslcat">wcslcat</a>:</td><td> </td><td align="left" valign="top">Concatenate wide-character strings to specified length </td></tr> <tr><td align="left" valign="top">• <a href="wcslcpy.html#wcslcpy">wcslcpy</a>:</td><td> </td><td align="left" valign="top">Copy wide-character string to specified length </td></tr> <tr><td align="left" valign="top">• <a href="wcslen.html#wcslen">wcslen</a>:</td><td> </td><td align="left" valign="top">Wide-character string length </td></tr> <tr><td align="left" valign="top">• <a href="wcsncat.html#wcsncat">wcsncat</a>:</td><td> </td><td align="left" valign="top">Concatenate wide-character strings </td></tr> <tr><td align="left" valign="top">• <a href="wcsncmp.html#wcsncmp">wcsncmp</a>:</td><td> </td><td align="left" valign="top">Wide-character string compare </td></tr> <tr><td align="left" valign="top">• <a href="wcsncpy.html#wcsncpy">wcsncpy</a>:</td><td> </td><td align="left" valign="top">Counted copy wide-character string </td></tr> <tr><td align="left" valign="top">• <a href="wcpncpy.html#wcpncpy">wcpncpy</a>:</td><td> </td><td align="left" valign="top">Copy part of a wide-character string returning a pointer to its end </td></tr> <tr><td align="left" valign="top">• <a href="wcsnlen.html#wcsnlen">wcsnlen</a>:</td><td> </td><td align="left" valign="top">Wide-character string length with maximum limit </td></tr> <tr><td align="left" valign="top">• <a href="wcspbrk.html#wcspbrk">wcspbrk</a>:</td><td> </td><td align="left" valign="top">Find wide characters in string </td></tr> <tr><td align="left" valign="top">• <a href="wcsrchr.html#wcsrchr">wcsrchr</a>:</td><td> </td><td align="left" valign="top">Reverse search for wide character in string </td></tr> <tr><td align="left" valign="top">• <a href="wcsspn.html#wcsspn">wcsspn</a>:</td><td> </td><td align="left" valign="top">Find initial match in wide-character string </td></tr> <tr><td align="left" valign="top">• <a href="wcsstr.html#wcsstr">wcsstr</a>:</td><td> </td><td align="left" valign="top">Find wide-character string segment </td></tr> <tr><td align="left" valign="top">• <a href="wcstok.html#wcstok">wcstok</a>:</td><td> </td><td align="left" valign="top">Tokenize wide-character string </td></tr> <tr><td align="left" valign="top">• <a href="wcswidth.html#wcswidth">wcswidth</a>:</td><td> </td><td align="left" valign="top">Number of column positions of a wide-character string </td></tr> <tr><td align="left" valign="top">• <a href="wcsxfrm.html#wcsxfrm">wcsxfrm</a>:</td><td> </td><td align="left" valign="top">Locale-specific wide-character string transformation </td></tr> <tr><td align="left" valign="top">• <a href="wcwidth.html#wcwidth">wcwidth</a>:</td><td> </td><td align="left" valign="top">Number of column positions of a wide-character code </td></tr> </table> <hr> <div class="header"> <p> Next: <a href="Signals.html#Signals" accesskey="n" rel="next">Signals</a>, Previous: <a href="Strings.html#Strings" accesskey="p" rel="prev">Strings</a>, Up: <a href="index.html#Top" accesskey="u" rel="up">Top</a> [<a href="Document-Index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Document-Index.html#Document-Index" title="Index" 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