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| <h3 class="section">6.4 <code>wmemmove</code>—copy wide characters in memory with overlapping areas</h3> |
| |
| <p><strong>Synopsis</strong> |
| <pre class="example"> #include <wchar.h> |
| wchar_t *wmemmove(wchar_t *<var>d</var>, const wchar_t *<var>s</var>, size_t <var>n</var>); |
| |
| </pre> |
| <p><strong>Description</strong><br> |
| The <code>wmemmove</code> function copies <var>n</var> wide characters from the object |
| pointed to by <var>s</var> to the object pointed to by <var>d</var>. Copying takes |
| place as if the <var>n</var> wide characters from the object pointed to by |
| <var>s</var> are first copied into a temporary array of <var>n</var> wide characters |
| that does not overlap the objects pointed to by <var>d</var> or <var>s</var>, and then |
| the <var>n</var> wide characters from the temporary array are copied into the |
| object pointed to by <var>d</var>. |
| |
| <p>This function is not affected by locale and all wchar_t values are |
| treated identically. The null wide character and wchar_t values not |
| corresponding to valid characters are not treated specially. |
| |
| <p>If <var>n</var> is zero, <var>d</var> and <var>s</var> must be a valid pointers, and the |
| function copies zero wide characters. |
| |
| <p><br> |
| <strong>Returns</strong><br> |
| The <code>wmemmove</code> function returns the value of <var>d</var>. |
| |
| <p><br> |
| <strong>Portability</strong><br> |
| <code>wmemmove</code> is ISO/IEC 9899/AMD1:1995 (ISO C). |
| |
| <p>No supporting OS subroutines are required. |
| |
| <p><br> |
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