wmemcpy man page
wmemcpy — copy an array of wide-characters
#include <wchar.h> wchar_t *wmemcpy(wchar_t *dest, const wchar_t *src, size_t n);
The wmemcpy() function is the wide-character equivalent of the memcpy(3) function. It copies n wide characters from the array starting at src to the array starting at dest.
The arrays may not overlap; use wmemmove(3) to copy between overlapping arrays.
The programmer must ensure that there is room for at least n wide characters at dest.
wmemcpy() returns dest.
For an explanation of the terms used in this section, see attributes(7).
POSIX.1-2001, POSIX.1-2008, C99.
memcpy(3), wcscpy(3), wmemmove(3), wmempcpy(3)
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memcpy(3), mempcpy(3), memstomp(1), signal-safety(7), wcscpy(3), wmemmove(3).