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Annotation of embedaddon/libiconv/srclib/memmove.c, revision 1.1

1.1     ! misho       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: #include <config.h>
        !             7: 
        !             8: #include <stddef.h>
        !             9: 
        !            10: void *
        !            11: memmove (void *dest0, void const *source0, size_t length)
        !            12: {
        !            13:   char *dest = dest0;
        !            14:   char const *source = source0;
        !            15:   if (source < dest)
        !            16:     /* Moving from low mem to hi mem; start at end.  */
        !            17:     for (source += length, dest += length; length; --length)
        !            18:       *--dest = *--source;
        !            19:   else if (source != dest)
        !            20:     {
        !            21:       /* Moving from hi mem to low mem; start at beginning.  */
        !            22:       for (; length; --length)
        !            23:        *dest++ = *source++;
        !            24:     }
        !            25:   return dest0;
        !            26: }