DragonFly On-Line Manual Pages

MEMCPY(3)             DragonFly Library Functions Manual             MEMCPY(3)

NAME
     memcpy -- copy byte string

LIBRARY
     Standard C Library (libc, -lc)

SYNOPSIS
     #include <string.h>

     void *
     memcpy(void * restrict dst, const void * restrict src, size_t len);

     void *
     mempcpy(void *dst, const void *src, size_t len);

DESCRIPTION
     The memcpy() and mempcpy() functions copy len bytes from string src to
     string dst.

RETURN VALUES
     The memcpy() function returns the original value of dst.  The mempcpy()
     function returns a pointer to the byte directly following the last byte
     written in dst.

SEE ALSO
     bcopy(3), memccpy(3), memmove(3), strcpy(3), wmemcpy(3)

STANDARDS
     The memcpy() function conforms to ISO/IEC 9899:1990 (``ISO C90'').

BUGS
     In this implementation memcpy() is implemented using bcopy(3), and
     therefore the strings may overlap.  On other systems, copying overlapping
     strings may produce surprises.  Programs intended to be portable should
     use memmove(3) when src and dst may overlap.

DragonFly 5.1                  February 22, 2018                 DragonFly 5.1