"for i in" goes in reverse

[dormky 1]

 

Done using https://www.onlinegdb.com/online_pascal_compiler, but Delphi 10.3 does the same. What the fork ?

Edited July 11 by Sherlock
Rephrased

[dormky 1]

 

Actual insanity.

[Dave Nottage 538]

18 minutes ago, dormky said:

What the ****?

Please keep the profanity out.

Delphi treats the constant in that statement as a set. See this.

[David Heffernan 2330]

Classic delphi type ambiguity consequence

[Uwe Raabe 1979]

A workaround would be to declare the array as a constant or create a dynamic array on the fly:

for I in TArray<Integer>.Create(45, 30, 15) do

 

[Brandon Staggs 231]

Why oh why would you write a for statement like that?

 

As others already said, you're declaring a set, so you are getting the expected behavior. I presume in your mind you expect it to be treated like an array. If that is the case, then you need to use an array instead of a set.

[Der schöne Günther 310]

In cases like this, I really love code editors and environments that can tell me right away to what type something infers by just tapping Ctrl+Alt...

 

Edited July 11 by Der schöne Günther

[David Heffernan 2330]

12 hours ago, Der schöne Günther said:

In cases like this, I really love code editors and environments that can tell me right away to what type something infers by just tapping Ctrl+Alt...

 

Code editors telling you stuff is great but the bigger problem is the missing functionality at the fundamental language level.