Re: Can Fortran Use This C Variable Directly Via "external" Decl?

clusardi2k@xxxxxxx wrote:

I'm pretty sure this is impossible, but someone 
> suggested it to me.

Can I do this with the f77 compiler:

/** main.C **/

int try_it; 

int test_ ()
{
}


CCC  test.F   CCC
       program main
       external try_it
       try_it = 100
       stop
       end


I am not sure what you are trying to do.

test_() doesn't ever get called.
I don't know what happens when you have a variable the same
name as as external statement.

It is usual for C static external variables, declared outside any
functions with or without the extern keyword and without the static
keyword, to be allocated in the same way as Fortran COMMON.
A COMMON with more than one variable should agree with a C static external struct, except for alignment issues.

-- glen

.

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