bcopy - Man Page

copy byte sequence


#include <strings.h>

void bcopy(const void *src, void *dest, size_t n);


The bcopy() function copies n bytes from src to dest. The result is correct, even when both areas overlap.

Return Value



For an explanation of the terms used in this section, see attributes(7).

bcopy()Thread safetyMT-Safe

Conforming to

4.3BSD. This function is deprecated (marked as LEGACY in POSIX.1-2001): use memcpy(3) or memmove(3) in new programs. Note that the first two arguments are interchanged for memcpy(3) and memmove(3). POSIX.1-2008 removes the specification of bcopy().

See Also

bstring(3), memccpy(3), memcpy(3), memmove(3), strcpy(3), strncpy(3)


This page is part of release 5.11 of the Linux man-pages project. A description of the project, information about reporting bugs, and the latest version of this page, can be found at https://www.kernel.org/doc/man-pages/.

Referenced By

bstring(3), memccpy(3), memcpy(3), memmove(3), stpcpy(3), strcat(3), strcpy(3).

2021-03-22 Linux Programmer's Manual