toolchain/gcc/newlib/libc/string/bcopy.c

   1 /*
   2 FUNCTION
   3         <<bcopy>>---copy memory regions
   4
   5 ANSI_SYNOPSIS
   6         #include <string.h>
   7         void bcopy(const void *<[in]>, void *<[out]>, size_t <[n]>);
   8
   9 TRAD_SYNOPSIS
  10         void bcopy(<[in]>, <[out]>, <[n]>
  11         const void *<[in]>;
  12         void *<[out]>;
  13         size_t <[n]>;
  14
  15 DESCRIPTION
  16         This function copies <[n]> bytes from the memory region
  17         pointed to by <[in]> to the memory region pointed to by
  18         <[out]>.
  19
  20         This function is implemented in term of <<memmove>>.
  21
  22 PORTABILITY
  23 <<bcopy>> requires no supporting OS subroutines.
  24
  25 QUICKREF
  26         bcopy - pure
  27 */
  28
  29 #include <string.h>
  30
  31 void
  32 _DEFUN (bcopy, (b1, b2, length),
  33         _CONST void *b1 _AND
  34         void *b2 _AND
  35         size_t length)
  36 {
  37   memmove (b2, b1, length);
  38 }