memmove.c - scc - simple c99 compiler
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       ---
       memmove.c (259B)
       ---
            1 #include <string.h>
            2 
            3 #undef memmove
            4 
            5 void *
            6 memmove(void *s1, const void *s2, size_t n)
            7 {
            8         char *d = s1;
            9         const char *s = s2;
           10 
           11         if (d < s) {
           12                 while (n-- > 0)
           13                         *d++ = *s++;
           14         } else {
           15                 s += n-1, d += n-1;
           16 
           17                 while (n-- > 0)
           18                         *d-- = *s--;
           19         }
           20         return s1;
           21 }