|WMEMMOVE(3P)||POSIX Programmer's Manual||WMEMMOVE(3P)|
wchar_t *wmemmove(wchar_t *ws1, const wchar_t *ws2, size_t n);
The wmemmove() function shall copy n wide characters from the object pointed to by ws2 to the object pointed to by ws1. Copying shall take place as if the n wide characters from the object pointed to by ws2 are first copied into a temporary array of n wide characters that does not overlap the objects pointed to by ws1 or ws2, and then the n wide characters from the temporary array are copied into the object pointed to by ws1.
This function shall not be affected by locale and all wchar_t values shall be treated identically. The null wide character and wchar_t values not corresponding to valid characters shall not be treated specially.
If n is zero, the application shall ensure that ws1 and ws2 are valid pointers, and the function shall copy zero wide characters.
The following sections are informative.
The Base Definitions volume of POSIX.1‐2017, <wchar.h>
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|2017||IEEE/The Open Group|