How to declare a global variable to be accessible in the main program and external function?

Asked Apr 15 '17 at 14:06

Active Apr 15 '17 at 15:16

Viewed 42 times

FUNCTION G(K)
    G=K**2+L*K+M
    RETURN
END FUNCTION


PROGRAM MAIN

    I=G(6)
    PRINT*,I
END PROGRAM

Here I want to declare the value of L and M globally so that I can use then in G() and the main proram. How can I do this?

edited Apr 15 '17 at 15:16

francescalus

asked Apr 15 '17 at 14:06

kowser66

What is the question? What is your problem with the code? – Vladimir F Героям слава Apr 15 '17 at 14:44
Be sure to learn modules, see http://stackoverflow.com/documentation/fortran/2203/program-units-and-file-layout. Please use tag [tag:fortran] for all Fortran questions. Can somebody else re-tag it? I am sure it is a duplicate. – Vladimir F Героям слава Apr 15 '17 at 14:45
This one is not *exact* duplicate, but is closely related too: http://stackoverflow.com/questions/42024559/using-global-variables-in-fortran?noredirect=1&lq=1 – Vladimir F Героям слава Apr 15 '17 at 15:29

0 Answers0