Hi, Ross.
Ops, the paste is wrong, but the bug is real. I mean, if I try to run
the program with the right input, the program aborts in the same place,
with the same error message:
philip@desktop:~/jhctut$ ./jtestarbo
Give me a tree:
T AND [L 1, L 2]
jtestarbo_code.c:2670: case fell off
Abortado
In fact, it aborts in the same place for any input. This fact may help to discover where the trouble is:
philip@desktop:~/jhctut$ ./jtestarbo
Give me a tree:
fdsfkldkl
jtestarbo_code.c:2670: case fell off
Abortado
--- On Wed, 11/11/09, Ross Mellgren
you declared 'T Op [Tree]' so you should give 'T AND [L 1, L 2]' as the tree, right? Hi, Felipe. You are right. This means that I gave the correct input to the program. As you can see, I typed 'T AND [L 1, L 2]'. Therefore, JHC was expected to parse and print it. However, it failed to parse it. The program works perfectly well in GHC. Here is the GHC output:
philip@desktop:~/jhctut$ ghc tree.hs --make [1 of 1] Compiling Main ( tree.hs, tree.o ) Linking tree ... philip@desktop:~/jhctut$ ./tree Give me a tree: T AND [L 1, L 2] T AND [L 1,L 2]
--- On Wed, 11/11/09, Felipe Lessa
data Op = AND | OR | NOT deriving (Show, Read) data Tree= L Int | T Op [Tree] deriving (Show, Read)
Hmm, you see,
philip@desktop:~/jhctut$ ./jtree Give me a tree: T AND (L 1, L 2)
jtree_code.c:2670: case fell off Aborted
you declared 'T Op [Tree]' so you should give 'T AND [L 1, L 2]' as the tree, right? -- Felipe. _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe Get the name you've always wanted ! @ymail.com or @rocketmail.com._______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe __________________________________________________________________ Yahoo! Canada Toolbar: Search from anywhere on the web, and bookmark your favourite sites. Download it now http://ca.toolbar.yahoo.com.