A_AhkVersion compare error Topic is solved

[vmech]

Can anyone explain why this simplest code get error ?

Code: Select all

MsgBox(A_AhkVersion < '2')

[kczx3]

String literals that are pure numbers are always (almost?) interpreted as numbers. So your quotes ‘2’ is actually 2 I think? Either way, why not use the VerCompare function?

[vmech]

String literals that are pure numbers are always (almost?) interpreted as numbers.

Apparently not always.

So your quotes ‘2’ is actually 2 I think? Either way, why not use the VerCompare function?

Because I read an example in the documentation, and decided to use it, changing it a little.
Apparently it was wrong

Anyway, 2.0-beta.15 is lesser than 2.0

Code: Select all

MsgBox(VerCompare(A_AhkVersion, '2.0'))	; <= -1

Only this code works well:

Code: Select all

MsgBox(SubStr(A_AhkVersion, 1, 3) < '2.0')	; <= 0

Or

Code: Select all

MsgBox(InStr(A_AhkVersion, '2',, 1) = 1)	; <= 1

[lexikos]

Greater (>), less (<), greater-or-equal (>=), and less-or-equal (<=). The inputs are compared numerically. A TypeError is thrown if either of the inputs is not a number or a numeric string.
Source: Variables and Expressions - Definition & Usage | AutoHotkey v2

Anyway, 2.0-beta.15 is lesser than 2.0

That is correct. -beta.15 is a pre-release tag. Pre-releases literally come before the release. v2.0 would be the final release, which hasn't come out yet. This is why #Requires AutoHotkey v2.0 will give you an error.

If you want to permit pre-release versions, VerCompare to "2-" or "2.0-", not "2" or "2.0".