How to use

num2long

method

in

org.jruby.RubyBignum

/** rb_big_aref
 *
 */
@Override
public RubyFixnum op_aref(ThreadContext context, IRubyObject other) {
  if (other instanceof RubyBignum) {
    // Need to normalize first
    other = bignorm(context.runtime, ((RubyBignum) other).value);
    if (other instanceof RubyBignum) {
      // '!=' for negative value
      if ((((RubyBignum) other).value.signum() >= 0) != (value.signum() == -1)) {
        return RubyFixnum.zero(context.runtime);
      }
      return RubyFixnum.one(context.runtime);
    }
  }
  long position = num2long(other);
  if (position < 0 || position > Integer.MAX_VALUE) {
    return RubyFixnum.zero(context.runtime);
  }
  return value.testBit((int)position) ? RubyFixnum.one(context.runtime) : RubyFixnum.zero(context.runtime);
}

/** rb_big_aref
 *
 */
@Override
public RubyFixnum op_aref(ThreadContext context, IRubyObject other) {
  if (other instanceof RubyBignum) {
    // Need to normalize first
    other = bignorm(context.runtime, ((RubyBignum) other).value);
    if (other instanceof RubyBignum) {
      // '!=' for negative value
      if ((((RubyBignum) other).value.signum() >= 0) != (value.signum() == -1)) {
        return RubyFixnum.zero(context.runtime);
      }
      return RubyFixnum.one(context.runtime);
    }
  }
  long position = num2long(other);
  if (position < 0 || position > Integer.MAX_VALUE) {
    return RubyFixnum.zero(context.runtime);
  }
  return value.testBit((int)position) ? RubyFixnum.one(context.runtime) : RubyFixnum.zero(context.runtime);
}

/** rb_big_aref
 *
 */
@JRubyMethod(name = "[]", required = 1)
public RubyFixnum op_aref(IRubyObject other) {
  if (other instanceof RubyBignum) {
    // Need to normalize first
    other = bignorm(getRuntime(), ((RubyBignum) other).value);
    if (other instanceof RubyBignum) {
      // '!=' for negative value
      if ((((RubyBignum) other).value.signum() >= 0) != (value.signum() == -1)) {
        return RubyFixnum.zero(getRuntime());
      }
      return RubyFixnum.one(getRuntime());
    }
  }
  long position = num2long(other);
  if (position < 0 || position > Integer.MAX_VALUE) {
    return RubyFixnum.zero(getRuntime());
  }
  return value.testBit((int)position) ? RubyFixnum.one(getRuntime()) : RubyFixnum.zero(getRuntime());
}

/** rb_big_aref
 *
 */
@JRubyMethod(name = "[]", required = 1)
public RubyFixnum op_aref(IRubyObject other) {
  if (other instanceof RubyBignum) {
    // Need to normalize first
    other = bignorm(getRuntime(), ((RubyBignum) other).value);
    if (other instanceof RubyBignum) {
      // '!=' for negative value
      if ((((RubyBignum) other).value.signum() >= 0) != (value.signum() == -1)) {
        return RubyFixnum.zero(getRuntime());
      }
      return RubyFixnum.one(getRuntime());
    }
  }
  long position = num2long(other);
  if (position < 0 || position > Integer.MAX_VALUE) {
    return RubyFixnum.zero(getRuntime());
  }
  return value.testBit((int)position) ? RubyFixnum.one(getRuntime()) : RubyFixnum.zero(getRuntime());
}