Compilation Error Multiple Definitions of Methods

Projects Programming
1

I recently made a library with a class that uses an array of function pointers for a finite state machine. When I compiled with a sketch that just includes the header and does nothing else, I get this error that says all the class methods were defined multiple times:

States/states.cpp.o: In function states::runstate()': /Users/me/Documents/Arduino/libraries/StateMachine/states.cpp:28: multiple definition of states::runstate()'
states.cpp.o:states.cpp:28: first defined here
States/states.cpp.o: In function states::addstate(void (*)())': /Users/me/Documents/Arduino/libraries/States/states.cpp:36: multiple definition of States::addstate(void (*)())'
states.cpp.o:states.cpp:36: first defined here
States/states.cpp.o: In function States': /Users/me/Documents/Arduino/libraries/States/states.cpp:16: multiple definition of States::States(short)'
states.cpp.o:states.cpp:16: first defined here
States/states.cpp.o: In function States': /Users/kenjitimmerman/Documents/Arduino/libraries/States/states.cpp:16: multiple definition of States::States(short)'
arduinos.cpp.o:arduinos.cpp:16: first defined here

My header only declares the methods like "int foo()" and the .cpp file has only one definition for each function. I've used preprocessor to protect the header from multiple inclusions. When I searched for errors like this, all the time they had actually been defined multiple times. Could anyone explain what the problem is?

2

erinius:
Could anyone explain what the problem is?

You've defined functions more than once. That's about as detailed as I can be without actually seeing the code.

3

erinius:
Could anyone explain what the problem is?

Can you post the complete code needed to demonstrate the problem i.e. your sketch, and the library that the sketch uses? Preferably make it a minimal example that demonstrates the problem with the least code that you can manage.