how can one called function in c++ program where function is declared in other c++ program?
how can one do this? can i use extern?
how can one called function in c++ program where function is declared in other
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how can one called function in c++ program where function is declared in other c++ program?
how can one do this? can i use extern?
I would suggest the best way is to refactor the first C++ program such that the required function is made part of a library. Then both your programs can link to that library and the function is available to both (and to any other programs requiring it).
Take a look at this tutorial. It covers how to create and then use a library using
gcc. Other similar tutorials will exist for other C++ variants.