kc3-lang/gnulib/lib/memmove.c

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• Hash : fa5c2532
  Author :
  Date : 2021-06-04T20:55:35
  

  Put public domain notices in source files where appropriate.
  
  * lib/{alloca.c,atexit.c,memmove.c}: Use public domain notice.
  

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• lib/memmove.c

• /* memmove.c -- copy memory.
     This file is in the public domain.  */
  
  /* Written by David MacKenzie <djm@gnu.ai.mit.edu>.  */
  
  #include <config.h>
  
  #include <stddef.h>
  
  /* Copy LENGTH bytes from SOURCE to DEST.  Does not null-terminate.  */
  
  void *
  memmove (void *dest0, void const *source0, size_t length)
  {
    char *dest = dest0;
    char const *source = source0;
    if (source < dest)
      /* Moving from low mem to hi mem; start at end.  */
      for (source += length, dest += length; length; --length)
        *--dest = *--source;
    else if (source != dest)
      {
        /* Moving from hi mem to low mem; start at beginning.  */
        for (; length; --length)
          *dest++ = *source++;
      }
    return dest0;
  }
  

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