calling fortran in c++ builder

[aldous]

I am trying to call a fortran subroutine from
my windows c++ builder6 c++ code. I compiled
the fortran code with cygwin's g77 compiler, -c,
to give me a .o file. I added the fortran.o to
my "project". Then, I TRYED to put an extern C
dcl in for the fortran function, thinking I'd link
with g2c in C++. PROBLEMS

1. WHERE does the extern C go? Before WinMain()
and there are 89 regular C++ members not found

2. In some locations, this extern causes only
one error "my_fortran_fun_() not found" in the
link stage.

DOES ANYBODY KNOW HOW TO GET THE C++ TO CALL
THE FORTRAN CODE CORRECTLY. Borland says I shouldn't
even need to link a special library (like g2c) but if
I did, WHERE WOULD I ADD the -lg2c.

HELP leading to a solution would be rewarded with
gold bricks, if I had any...

 

[Cagliostro]

you can't compille togever code in Windows with code in cygwin.

Ion Filipski

 

[aldous]

I wondered about that when cgywin popped up in a bash
shell window. But I only got this env as an aside because
it was a free fortran compiler.

So, thank you, and I posted in the Fortran forum to find
a native windows Fortran77 compiler...

Does that also mean Fortran DLLs encompassing cygwin
g77 object code won't work either? (I'd guess, they won't
work either.)

 

[Cagliostro]

All you should do is reading fortran documentation which comes with fortran compiler and see which one could be linked with Borland and Microsoft C++ and how. Borland and Microsoft C++ compilers do not contain such information.

Ion Filipski