/*
 * call-seq:
 *   fix - numeric   =>  numeric_result
 *
 * Performs subtraction: the class of the resulting object depends on
 * the class of <code>numeric</code> and on the magnitude of the 
 * result.
 */

static VALUE
fix_minus(x, y)
    VALUE x, y;
{
    if (FIXNUM_P(y)) {
        long a, b, c;
        VALUE r;

        a = FIX2LONG(x);
        b = FIX2LONG(y);
        c = a - b;
        r = LONG2FIX(c);

        if (FIX2LONG(r) != c) {
            r = rb_big_minus(rb_int2big(a), rb_int2big(b));
        }
        return r;
    }
    if (TYPE(y) == T_FLOAT) {
        return rb_float_new((double)FIX2LONG(x) - RFLOAT(y)->value);
    }
    return rb_num_coerce_bin(x, y);
}