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Possible Duplicate:
C void arguments
I am looking at some OpenGL graphics code and it has the following:
glutIdleFunc(void(*func)(void));
When does it mean to have a function pointer with a void argument in C? Does this mean the function can take in any arguments or is not allow to take in any arguments, or something else?
It means you have to pass a pointer to a function that has no parameters and returns nothing.