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v1_9_2_180 - Show latest stable - 0 notes - Class: Fixnum

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-(p1) public

Performs subtraction: the class of the resulting object depends on the class of numeric and on the magnitude of the result.

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

        a = FIX2LONG(x);
        b = FIX2LONG(y);
        c = a - b;
        r = LONG2NUM(c);

        return r;
    }
    switch (TYPE(y)) {
      case T_BIGNUM:
        x = rb_int2big(FIX2LONG(x));
        return rb_big_minus(x, y);
      case T_FLOAT:
        return DBL2NUM((double)FIX2LONG(x) - RFLOAT_VALUE(y));
      default:
        return rb_num_coerce_bin(x, y, '-');
    }
}

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