I know this is old, but for those who are having the same issue...

The issue is that no one defined Automaton "undefined reference to `Automaton::Automaton()'"
All I did was change Automaton(); to Automaton() = default; then the tests ran. Either that or comment it.

done

Fixed in NASM.

it sounds like the infamous mutable default arguments Python gotcha. But without more information it's impossible to be sure, and the OP is gone.

OP solved it, closing

OP solved it, closing

Helpful. Thank you!

Java Translation

nice kata. however, i used a function with a default argument for my preorder, postorder and inorder functions, and the tests persist the value of this default parameter. I could write this program outside of the codewars interface, but can't in the way the interface expects me to write it. This seems to be a bug in the interface.

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Python Translation

Cannot run the test in c++ got the following error:

1 warning generated.
/tmp/main-c73091.o: In function BasicTests::Test1()': main.cpp:(.text._ZN10BasicTests5Test1Ev[_ZN10BasicTests5Test1Ev]+0xf): undefined reference to Automaton::Automaton()'
/tmp/main-c73091.o: In function BasicTests::Test2()': main.cpp:(.text._ZN10BasicTests5Test2Ev[_ZN10BasicTests5Test2Ev]+0xf): undefined reference to Automaton::Automaton()'
clang: error: linker command failed with exit code 1 (use -v to see invocation)

Really easy and funny kata trying to explain something that can get very complex pretty easily.

TS translation, please review and approve.

• random tests strenghtened (from 10 to 10000);
• random tests restructured and factorized from the JS version.

Dude, thanks for going so far as to make an edit. When I first looked at the code I thought it seemed weird. So it was Python.