копировать широкие символы в памяти с перекрывающимися областями (copy wide characters in memory with overlapping areas)
Пролог (Prolog)
This manual page is part of the POSIX Programmer's Manual. The
Linux implementation of this interface may differ (consult the
corresponding Linux manual page for details of Linux behavior),
or the interface may not be implemented on Linux.
Имя (Name)
wmemmove — copy wide characters in memory with overlapping areas
Синопсис (Synopsis)
#include <wchar.h>
wchar_t *wmemmove(wchar_t *ws1, const wchar_t *ws2, size_t n);
Описание (Description)
The functionality described on this reference page is aligned
with the ISO C standard. Any conflict between the requirements
described here and the ISO C standard is unintentional. This
volume of POSIX.1‐2017 defers to the ISO C standard.
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.
Возвращаемое значение (Return value)
The wmemmove() function shall return the value of ws1.
Ошибки (Error)
No errors are defined
The following sections are informative.
Примеры (Examples)
None.
Использование в приложениях (Application usage)
None.
Обоснование (Rationale)
None.
Будущие направления (Future directions)
None.
Смотри также (See also)
wmemchr(3p), wmemcmp(3p), wmemcpy(3p), wmemset(3p)
The Base Definitions volume of POSIX.1‐2017, wchar.h(0p)
