Re: Cardinals

[Todd Chester via perl6-users]

On 2020-01-02 10:14, Tobias Boege wrote:

On Thu, 02 Jan 2020, ToddAndMargo via perl6-users wrote:

Hi All,

      “He who asks is a fool for five minutes, but he who
      does not ask remains a fool forever.”
      ― Mark Twain

This would be my five minutes.  I will live.

How do I do a 32 bit unsigned integer (cardinal)?  I
have a situation where I need to be able to have the
first bit be a one and not have Raku think it is
a negative number.

It's called uint32: 
https://docs.perl6.org/language/nativetypes#index-entry-uint32

Hi Tobias,

Perfect!   Thank you!

-T


p6 'my uint16 $x = 0x8765;
    my int16  $y = 0x8765;
    say $x.base(0x10);
    say $y.base(0x10);'

8765
-789B


p6 'my uint16 $x = 0x8765;
    $x += 0xFF;
    say $x.base(0x10);'

8864


p6 'my uint16 $x = 0x8765;
    my int16 $y = $x +| 0x00;
    say $x.base(0x10); say $y.base(0x10);'

8765
-789B


p6 'my uint16 $x = 0x4ABC;
    $x = $x +< 1;
    say $x.base(0x10);'
9578


p6 'my uint16 $x = 0x4ABC;
    $x += $x;
    say $x.base(0x10);'

9578