Pass by reference in I7?

[capmikee]

I’m just wondering if something like this is possible:

To increment (N - a number passed by reference) within bounds: if N is less than the maximum allowed number, increment N;

[zarf (Andrew Plotkin)]

Not in a way you can use directly.

You can look at the way the increment phrase is defined, and write your own. But you’d be relying on I7 internals which are subject to change.

[capmikee]

@zarf

Not in a way you can use directly.

You can look at the way the increment phrase is defined, and write your own. But you’d be relying on I7 internals which are subject to change.

I tried that, and got this message:

Problem. In ‘To increment (S - storage) within limits’ , the text ‘storage’ after the hyphen should tell me what kind of value goes here (like ‘a number’, or ‘a vehicle’), but this is not a kind: it does describe something I can understand, but not something which can then be used as a value. (It would be allowed in low-level, so-called ‘inline’ phrase definitions, but not in a standard phrase definition like this one.)

So I decided to go with this instead:

To decide what number is the counting number after (N - a number):