копировать байты в память с перекрывающимися областями (copy bytes 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)
memmove — copy bytes in memory with overlapping areas
Синопсис (Synopsis)
#include <string.h>
void *memmove(void *s1, const void *s2, 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 memmove() function shall copy n bytes from the object pointed
to by s2 into the object pointed to by s1. Copying takes place
as if the n bytes from the object pointed to by s2 are first
copied into a temporary array of n bytes that does not overlap
the objects pointed to by s1 and s2, and then the n bytes from
the temporary array are copied into the object pointed to by s1.
Возвращаемое значение (Return value)
The memmove() function shall return s1; no return value is
reserved to indicate an error.
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)
The Base Definitions volume of POSIX.1‐2017, string.h(0p)
