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98 lines
4.1 KiB
HTML
98 lines
4.1 KiB
HTML
4 years ago
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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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<!-- Created by GNU Texinfo 6.4, http://www.gnu.org/software/texinfo/ -->
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<title>wmemmove (The Red Hat newlib C Library)</title>
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<meta name="description" content="wmemmove (The Red Hat newlib C Library)">
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<link href="index.html#Top" rel="start" title="Top">
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<link href="Document-Index.html#Document-Index" rel="index" title="Document Index">
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<link href="Document-Index.html#SEC_Contents" rel="contents" title="Table of Contents">
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<link href="Wchar-strings.html#Wchar-strings" rel="up" title="Wchar strings">
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<link href="wmempcpy.html#wmempcpy" rel="next" title="wmempcpy">
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</head>
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<body lang="en">
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<a name="wmemmove"></a>
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<div class="header">
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<p>
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Next: <a href="wmempcpy.html#wmempcpy" accesskey="n" rel="next">wmempcpy</a>, Previous: <a href="wmemcpy.html#wmemcpy" accesskey="p" rel="prev">wmemcpy</a>, Up: <a href="Wchar-strings.html#Wchar-strings" accesskey="u" rel="up">Wchar strings</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>
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</div>
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<hr>
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<a name="wmemmove_002d_002d_002dcopy-wide-characters-in-memory-with-overlapping-areas"></a>
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<h3 class="section">6.4 <code>wmemmove</code>—copy wide characters in memory with overlapping areas</h3>
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<p><strong>Synopsis</strong>
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</p><div class="example">
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<pre class="example">#include <wchar.h>
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wchar_t *wmemmove(wchar_t *<var>d</var>, const wchar_t *<var>s</var>, size_t <var>n</var>);
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</pre></div>
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<p><strong>Description</strong><br>
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The <code>wmemmove</code> function copies <var>n</var> wide characters from the object
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pointed to by <var>s</var> to the object pointed to by <var>d</var>. Copying takes
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place as if the <var>n</var> wide characters from the object pointed to by
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<var>s</var> are first copied into a temporary array of <var>n</var> wide characters
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that does not overlap the objects pointed to by <var>d</var> or <var>s</var>, and then
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the <var>n</var> wide characters from the temporary array are copied into the
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object pointed to by <var>d</var>.
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</p>
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<p>This function is not affected by locale and all wchar_t values are
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treated identically. The null wide character and wchar_t values not
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corresponding to valid characters are not treated specially.
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</p>
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<p>If <var>n</var> is zero, <var>d</var> and <var>s</var> must be a valid pointers, and the
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function copies zero wide characters.
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</p>
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<br>
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<p><strong>Returns</strong><br>
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The <code>wmemmove</code> function returns the value of <var>d</var>.
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</p>
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<br>
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<p><strong>Portability</strong><br>
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<code>wmemmove</code> is ISO/IEC 9899/AMD1:1995 (ISO C).
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</p>
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<p>No supporting OS subroutines are required.
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</p>
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<br>
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</html>
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