keuhdall / ft_turing Goto Github PK
View Code? Open in Web Editor NEWTuring Machine simulator made in Haskell
License: BSD 3-Clause "New" or "Revised" License
Turing Machine simulator made in Haskell
License: BSD 3-Clause "New" or "Revised" License
A non exhaustive pattern causes the program to crash with unary_add.json
and 111+11=
as input.
The function causing the bug is findTransition (line 116).
(See code below ) :
findTransition :: String -> [Cond] -> Cond
findTransition w ts = case ts of
(t:nts) -> if (read t) == w then t else (findTransition w nts)
Appart from the non exhaustive pattern problem, another part of the issue seems to come from the input itself, as the JSON does not implement the =
sign and no transition leads to the HALT
state.
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