memmove(3) Library Functions Manual memmove(3)
NAME
memmove - copy memory area
LIBRARY
Standard C library (libc, -lc)
SYNOPSIS
#include <string.h>
void *memmove(void dest[.n], const void src[.n], size_t n);
DESCRIPTION
The memmove() function copies n bytes from memory area src to memory
area dest. The memory areas may overlap: copying takes place as though
the bytes in src are first copied into a temporary array that does not
overlap src or dest, and the bytes are then copied from the temporary
array to dest.
RETURN VALUE
The memmove() function returns a pointer to dest.
ATTRIBUTES
For an explanation of the terms used in this section, see attrib-
utes(7).
┌───────────────────────────────────────────┬───────────────┬─────────┐
│ Interface │ Attribute │ Value │
├───────────────────────────────────────────┼───────────────┼─────────┤
│ memmove() │ Thread safety │ MT-Safe │
└───────────────────────────────────────────┴───────────────┴─────────┘
STANDARDS
C11, POSIX.1-2008.
HISTORY
POSIX.1-2001, C89, SVr4, 4.3BSD.
SEE ALSO
bcopy(3), bstring(3), memccpy(3), memcpy(3), strcpy(3), strncpy(3),
wmemmove(3)
Linux man-pages 6.7 2023-10-31 memmove(3)
Generated by dwww version 1.16 on Tue Jul 14 10:15:57 CEST 2026.