libc/string/bcopy.c

   1 /*
   2  * Copyright (C) 2002     Manuel Novoa III
   3  * Copyright (C) 2000-2005 Erik Andersen <andersen@uclibc.org>
   4  *
   5  * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
   6  */
   7
   8 #include <string.h>
   9
  10 #ifdef __UCLIBC_SUSV3_LEGACY__
  11 void bcopy(const void *s2, void *s1, size_t n)
  12 {
  13 #if 1
  14         memmove(s1, s2, n);
  15 #else
  16         register char *s;
  17         register const char *p;
  18
  19         s = s1;
  20         p = s2;
  21         if (p >= s) {
  22                 while (n) {
  23                         *s++ = *p++;
  24                         --n;
  25                 }
  26         } else {
  27                 while (n) {
  28                         --n;
  29                         s[n] = p[n];
  30                 }
  31         }
  32 #endif
  33 }
  34 #endif