126 lines
4.1 KiB
HTML
126 lines
4.1 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<!-- Copyright (c) 2001 The Open Group, All Rights Reserved -->
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<title>wcsstr</title>
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<script type="text/javascript" language="JavaScript" src="../jscript/codes.js">
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<basefont size="3"> <a name="wcsstr"></a> <a name="tag_03_841"></a><!-- wcsstr -->
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<!--header start-->
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<center><font size="2">The Open Group Base Specifications Issue 6<br>
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IEEE Std 1003.1-2001<br>
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Copyright © 2001 The IEEE and The Open Group, All Rights reserved.</font></center>
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<!--header end-->
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<hr size="2" noshade>
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<h4><a name="tag_03_841_01"></a>NAME</h4>
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<blockquote>wcsstr - find a wide-character substring</blockquote>
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<h4><a name="tag_03_841_02"></a>SYNOPSIS</h4>
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<blockquote class="synopsis">
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<p><code><tt>#include <<a href="../basedefs/wchar.h.html">wchar.h</a>><br>
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<br>
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wchar_t *wcsstr(const wchar_t *restrict</tt> <i>ws1</i><tt>,<br>
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const wchar_t *restrict</tt> <i>ws2</i><tt>);<br>
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</tt></code></p>
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</blockquote>
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<h4><a name="tag_03_841_03"></a>DESCRIPTION</h4>
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<blockquote>
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<div class="box"><sup>[<a href="javascript:open_code('CX')">CX</a>]</sup> <img src="../images/opt-start.gif" alt="[Option Start]"
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border="0"> The functionality described on this reference page is aligned with the ISO C standard. Any conflict between the
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requirements described here and the ISO C standard is unintentional. This volume of IEEE Std 1003.1-2001 defers to
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the ISO C standard. <img src="../images/opt-end.gif" alt="[Option End]" border="0"></div>
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<p>The <i>wcsstr</i>() function shall locate the first occurrence in the wide-character string pointed to by <i>ws1</i> of the
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sequence of wide characters (excluding the terminating null wide character) in the wide-character string pointed to by
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<i>ws2</i>.</p>
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</blockquote>
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<h4><a name="tag_03_841_04"></a>RETURN VALUE</h4>
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<blockquote>
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<p>Upon successful completion, <i>wcsstr</i>() shall return a pointer to the located wide-character string, or a null pointer if
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the wide-character string is not found.</p>
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<p>If <i>ws2</i> points to a wide-character string with zero length, the function shall return <i>ws1</i>.</p>
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</blockquote>
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<h4><a name="tag_03_841_05"></a>ERRORS</h4>
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<blockquote>
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<p>No errors are defined.</p>
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</blockquote>
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<hr>
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<div class="box"><em>The following sections are informative.</em></div>
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<h4><a name="tag_03_841_06"></a>EXAMPLES</h4>
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<blockquote>
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<p>None.</p>
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</blockquote>
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<h4><a name="tag_03_841_07"></a>APPLICATION USAGE</h4>
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<blockquote>
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<p>None.</p>
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</blockquote>
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<h4><a name="tag_03_841_08"></a>RATIONALE</h4>
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<blockquote>
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<p>None.</p>
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</blockquote>
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<h4><a name="tag_03_841_09"></a>FUTURE DIRECTIONS</h4>
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<blockquote>
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<p>None.</p>
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</blockquote>
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<h4><a name="tag_03_841_10"></a>SEE ALSO</h4>
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<blockquote>
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<p><a href="wcschr.html"><i>wcschr</i>()</a> , the Base Definitions volume of IEEE Std 1003.1-2001, <a href=
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"../basedefs/wchar.h.html"><i><wchar.h></i></a></p>
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</blockquote>
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<h4><a name="tag_03_841_11"></a>CHANGE HISTORY</h4>
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<blockquote>
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<p>First released in Issue 5. Included for alignment with ISO/IEC 9899:1990/Amendment 1:1995 (E).</p>
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</blockquote>
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<h4><a name="tag_03_841_12"></a>Issue 6</h4>
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<blockquote>
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<p>The <i>wcsstr</i>() prototype is updated for alignment with the ISO/IEC 9899:1999 standard.</p>
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</blockquote>
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<div class="box"><em>End of informative text.</em></div>
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