memmove.c - enscript - GNU Enscript
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       ---
       memmove.c (634B)
       ---
            1 /* memmove.c -- copy memory.
            2    Copy LENGTH bytes from SOURCE to DEST.  Does not null-terminate.
            3    In the public domain.
            4    By David MacKenzie <djm@gnu.ai.mit.edu>.  */
            5 
            6 #ifdef HAVE_CONFIG_H
            7 #include <config.h>
            8 #endif
            9 
           10 void
           11 memmove (dest, source, length)
           12      char *dest;
           13      const char *source;
           14      unsigned length;
           15 {
           16   if (source < dest)
           17     /* Moving from low mem to hi mem; start at end.  */
           18     for (source += length, dest += length; length; --length)
           19       *--dest = *--source;
           20   else if (source != dest)
           21     /* Moving from hi mem to low mem; start at beginning.  */
           22     for (; length; --length)
           23       *dest++ = *source++;
           24 }