Number base

Getting Started
1

Does XOJO have a keyword for setting a number base such as 0 to 7 or 0 to 4 etc?

2

Select Case?
Select Case

1 Like
3

See &o for octal numbers
https://documentation.xojo.com/%26o

1 Like
4

and &b for binary:
https://documentation.xojo.com/%26b

and &h for hex:
https://documentation.xojo.com/%26h

5

TBH I’m not sure what it is you mean ?
Do you literally mean to specify the numeric base a number is expressed in (base 2 for binary, octal for base 8 hex for base 16, and base 10 which is the usual default) ?
Or something else ?

6

I was looking for a way to incrementing a number like this:
0,1,2,3,4,5,6,7,10,11,12,13,14,15,16,17, 20, 21, 22, etc.
or even better:
1,2,3,4,5,6,7,1,2,3,4,5,6,7,1,2,3,4,5,6,7 etc
Used to increment the day of the week and always wrapping back to 1 after 7

7

nothing built in that would let you define the range of a given value in a simple way
you’d need to apply modulo arithmetic yourself
or bit masking with &h07 (&b0111) or something similar

8

Thanks Norman. It was very easy to do with if/then or Select Case statements. I just wanted to know.

9

Just count with a regular integer and use (MyInteger mod 7)+1 to get a number from 1 to 7.

1 Like
10

MyInteger = (myInteger + 1) and &h07

should do it as well

1 Like
11

These both look like what I was searching for but what seems to give me the correct answer is:
(myInteger Mod 7) without the 1 added. 8 yields a 1, 15 yields a 1, etc.

12

But 7 will be 0.

If you need 1 to 7 then you will need to check if you get 0 to convert that to 7.

13

Your right because 8 yields a 2 if you add the +1. So your now back to adding an if/then statement. Nothing gained yet.

I am looking for 1 to 7

14

You can use:
https://documentation.xojo.com/api/data_types/datetime.html#datetime-dayOfWeek

What do you want to do?

15

In this particular case I am asking my program to look up array values of temperatures or on/off times that are associated with days of the week. If it’s day 7 and I wish to look ahead a day I want the array element number 1, not 8 or 0

16

What Alberto says is (from LR):

https://documentation.xojo.com/api/data_types/datetime.html#datetime-dayOfWeek

Use DateTime.DayOfWeek:
The day of the week as an integer: 1=Sunday, 7=Saturday.