MEMMOVE(3) Library Functions Manual MEMMOVE(3)

memmove — copy bytes in memory with overlapping areas

#include <string.h>

void *memmove(void *s1, const void *s2, size_t n);

The memmove() function copies 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 .

The memmove() function returns s1 ; no return value is reserved to indicate an error.

No errors are defined.

None.

None.

<string.h> .

Derived from the ANSI C standard.

February 1997 posix.fail