| ... | ... | @@ -1569,6 +1569,70 @@ test "big.int truncate negative multi to single" { |
| 1569 | 1569 | try testing.expect((try a.to(i17)) == 0); |
| 1570 | 1570 | } |
| 1571 | 1571 | |
| 1572 | test "big.int saturate single signed positive" { |
| 1573 | var a = try Managed.initSet(testing.allocator, 0xBBBB_BBBB); |
| 1574 | defer a.deinit(); |
| 1575 | |
| 1576 | try a.saturate(a.toConst(), .signed, 17); |
| 1577 | |
| 1578 | try testing.expect((try a.to(i17)) == maxInt(i17)); |
| 1579 | } |
| 1580 | |
| 1581 | test "big.int saturate single signed negative" { |
| 1582 | var a = try Managed.initSet(testing.allocator, -1_234_567); |
| 1583 | defer a.deinit(); |
| 1584 | |
| 1585 | try a.saturate(a.toConst(), .signed, 17); |
| 1586 | |
| 1587 | try testing.expect((try a.to(i17)) == minInt(i17)); |
| 1588 | } |
| 1589 | |
| 1590 | test "big.int saturate single signed" { |
| 1591 | var a = try Managed.initSet(testing.allocator, maxInt(i17) - 1); |
| 1592 | defer a.deinit(); |
| 1593 | |
| 1594 | try a.saturate(a.toConst(), .signed, 17); |
| 1595 | |
| 1596 | try testing.expect((try a.to(i17)) == maxInt(i17) - 1); |
| 1597 | } |
| 1598 | |
| 1599 | test "big.int saturate multi signed" { |
| 1600 | var a = try Managed.initSet(testing.allocator, maxInt(Limb) << @bitSizeOf(SignedDoubleLimb)); |
| 1601 | defer a.deinit(); |
| 1602 | |
| 1603 | try a.saturate(a.toConst(), .signed, @bitSizeOf(SignedDoubleLimb)); |
| 1604 | |
| 1605 | try testing.expect((try a.to(SignedDoubleLimb)) == maxInt(SignedDoubleLimb)); |
| 1606 | } |
| 1607 | |
| 1608 | test "big.int saturate single unsigned" { |
| 1609 | var a = try Managed.initSet(testing.allocator, 0xFEFE_FEFE); |
| 1610 | defer a.deinit(); |
| 1611 | |
| 1612 | try a.saturate(a.toConst(), .unsigned, 23); |
| 1613 | |
| 1614 | try testing.expect((try a.to(u23)) == maxInt(u23)); |
| 1615 | } |
| 1616 | |
| 1617 | test "big.int saturate multi unsigned zero" { |
| 1618 | var a = try Managed.initSet(testing.allocator, -1); |
| 1619 | defer a.deinit(); |
| 1620 | |
| 1621 | try a.saturate(a.toConst(), .unsigned, @bitSizeOf(DoubleLimb)); |
| 1622 | |
| 1623 | try testing.expect(a.eqZero()); |
| 1624 | } |
| 1625 | |
| 1626 | |
| 1627 | test "big.int saturate multi unsigned" { |
| 1628 | var a = try Managed.initSet(testing.allocator, maxInt(Limb) << @bitSizeOf(DoubleLimb)); |
| 1629 | defer a.deinit(); |
| 1630 | |
| 1631 | try a.saturate(a.toConst(), .unsigned, @bitSizeOf(DoubleLimb)); |
| 1632 | |
| 1633 | try testing.expect((try a.to(DoubleLimb)) == maxInt(DoubleLimb)); |
| 1634 | } |
| 1635 | |
| 1572 | 1636 | test "big.int shift-right single" { |
| 1573 | 1637 | var a = try Managed.initSet(testing.allocator, 0xffff0000); |
| 1574 | 1638 | defer a.deinit(); |
Robin Voetter <robin@voetter.nl> 2021-10-03 16:45:13+02:00