Why does this ICE code crash?
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Code:
iTESTS
det(0)

Alloc(1)→A

1->LT→LS
225→*{A}

While not(getKey(15)
det(5,255) //fill screen white
det(19,0,0) //set text X, Y
det(17,sum(17,°A,°LT,°LS)) // print the character
Pause

End
det(1)


I don't know why this crashes. I should be clearer, code runs once but on the second iteration it fails. I have tried moving things in and out of the loop but it seems that the sum(17 command is not acting as I would expect.
Allocating more memory doesn't work. I have tried everything I can think of. I am working on this to read from a program.

In my actual program I iteratively use

Code:
sum(5,°G,1,1,SLOT) // reading 1 char
det(19,F*8,NLINE*10) // text X, Y
det(17,sum(17,°G,°LT,°LS))

This does not work either.
yes
I do not know ice, but use a more specific title and search the forms and use google. Make sure to check the docs and look at other people's code.
01000001 01110010 01110010 01101111 01110111 01100101 01100100 00100001
As was brought up in chat, sum(17 is apparently GetTokenString. I'm familiar with the C version of this function, and note that since it takes a pointer to A (which itself is already a pointer), it's actually updating the value of A to point after the current token. If you don't want this behavior, you should initialize another variable with the value of A in the loop so A itself doesn't get destroyed.

Another thing to note, though, is that tokens can be larger than one byte. When reading from a file this way, it's possible that you end up with the first byte of a two-byte token, and this would cause weird behavior if the second byte isn't there. I'm not sure exactly what the best way to deal with this is, but if there's a way to call ti_GetDataPointer for files, you can use that to have GetTokenString iterate over the file data directly, and it should just work. (Usually, you also want to use the returned token length in LT to keep track of remaining bytes in the file.)
calc84maniac wrote:

I'm not sure exactly what the best way to deal with this is, but if there's a way to call ti_GetDataPointer for files, you can use that to have GetTokenString iterate over the file data directly, and it should just work. (Usually, you also want to use the returned token length in LT to keep track of remaining bytes in the file.)


Even doing this and directly reading the data does not fix the issue of a crash after one iteration. I think this is a fault with the ICE compiler rather than one with my code. This is the edited version of my real (non test) code.


Code:
sum(16,SLOT)→E //getSize
det(5,255) // fill screen white
0→F
0→NLINE
0→LT→LS
sum(18,SLOT)→PTR

While F+(NLINE*20)<E and NLINE<30
det(19,F*8,NLINE*10) // fancy text X, Y setter
det(17,sum(17,°PTR,°LT,°LS) // print( GetTokenString( of the pointer
Pause
0→LT→LS
(new line logic)
End



I am inclined to believe this is an ICE issue because there are two unresolved topics with the same issue.

(Two people with the same issue)
https://www.cemetech.net/forum/viewtopic.php?p=274406
https://www.cemetech.net/forum/viewtopic.php?t=18623
yes
  
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