memcpy, _fmemcpy

partly corrected

Copies a block of n bytes.

Defined in header <mem.h>

Syntax

#include <mem.h>
Near  version: void *memcpy(void    *dest, const void *src, size_t n);
Far version: void far *far _fmemcpy(void    far *dest, const void far *src,
                                       size_t n);

Portability

	DOS	UNIX	Windows	ANSI C	C++ only
Near version	■	■	■	■
Far version	■		■

Remarks

memcpy is available on UNIX System V systems.

memcpy copies a block of n bytes from src to dest. If src and dest overlap, the behavior of memcpy is undefined.

Return value

memcpy returns dest.

Example

#include <stdio.h>
*include <string.h>
int main(void)
{
   char srcn  = "******************************"•
   chardest[]  = "abcdefghi]lkmnopqrstuvwxyz0123455709" ;
   char *ptr;
   printf("destination before memcpy.  Is\n", dest);
   ptr = (char *) memcpy(dest,  src, strlen(src));
   if (ptr)
      printf("destination after memcpy:  %s\n", dest);
   else
      printf("memcpy failed\n");
   return 0;

Differences from modern implementations

Nothing recorded yet.

Modern references

These are search links, not yet checked by hand.

Stable link: /3.1/mem.h/memcpy/ · short form /3.1/memcpy/