Merge pull request #185 from libtom/leftover_digit_macro

leftover DIGIT() usage

bn_mp_get_double.c

@@ -20,7 +20,7 @@ double mp_get_double(const mp_int *a)
       fac *= 2.0;
    }
    for (i = a->used; i --> 0;) {
-      d = (d * fac) + (double)DIGIT(a, i);
+      d = (d * fac) + (double)a->dp[i];
    }
    return (a->sign == MP_NEG) ? -d : d;
 }

bn_mp_is_square.c

@@ -54,7 +54,7 @@ int mp_is_square(const mp_int *arg, int *ret)
    }
 
    /* First check mod 128 (suppose that DIGIT_BIT is at least 7) */
-   if (rem_128[127u & DIGIT(arg, 0)] == (char)1) {
+   if (rem_128[127u & arg->dp[0]] == (char)1) {
       return MP_OKAY;
    }