Question about AutoHotkey storing hex and decimal numbers

[Hatsuko]

Code: Select all

foo := 15
bar := 0xF
baz := 0xf
MsgBox, , Title, %foo%  ; (A) shows 15
MsgBox, , Title, %bar%  ; (B) shows 0xF
MsgBox, , Title, %baz%  ; (C) shows 0xf

foo += 0x0
bar += 0x0
baz += 0x0
MsgBox, , Title, %foo%  ; (D) shows 15
MsgBox, , Title, %bar%  ; (E) shows 15
MsgBox, , Title, %baz%  ; (F) shows 15

Hello. I am just wondering. When AutoHotkey stores a number value to a variable, does it also store information about whether it is a hex or decimal? Or maybe it just uses strings under the hood? Or else I can't understand why (A) (B) (C) are different.

Also after the calculation, all numbers become decimal, as shown by (D) (E) (F). Are there ways to keep a number hex after calculation?

[Rohwedder]

Hallo,
https://autohotkey.com/docs/commands/SetFormat.htm

Code: Select all

SetFormat, IntegerFast, Hex
foo := 15
bar := 0xF
baz := 0xf
MsgBox, , Title, %foo%  ; (A) shows 15
MsgBox, , Title, %bar%  ; (B) shows 0xF
MsgBox, , Title, %baz%  ; (C) shows 0xf

foo += 0x0
bar += 0x0
baz += 0x0
MsgBox, , Title, %foo%  ; (D) shows 15
MsgBox, , Title, %bar%  ; (E) shows 15
MsgBox, , Title, %baz%  ; (F) shows 15

[jeeswg]

- I suppose that in AHK v1, the variables store numeric *and* string data.
- However, in AHK v2 the situation is more logical. The numbers are stored and presented as decimal only, and if you ever want to view the numbers as hex, you need to use the Format function. (Note: AHK v2 does not have SetFormat.)
- I write my scripts in a forwards compatible way, so I use the Format function whatever I want a number to be displayed as hex (e.g. MsgBox/ToolTip/txt/clipboard output). Cheers.

Code: Select all

foo := 15
bar := 0xF
baz := 0xf

MsgBox(foo) ;15
MsgBox(bar) ;15
MsgBox(baz) ;15

MsgBox(foo) ;15
MsgBox(Format("0x{:X}", bar)) ;0xF
MsgBox(Format("0x{:x}", baz)) ;0xf

MsgBox(Format("{:#x}", baz)) ;0xf

[Hatsuko]

Thanks for the helpful replies!
Sometimes I just feel there are strange things in the AHK language. I haven't used AHK v2 yet, may try it in the future. By now I'll consider using jeeswg's way