[Clas_offline] C++ fnc call from Fortran

[Taisiya Mineeva]

Yes, this works! The test problem resumed to:
g++ -c test_c++.cc
gfortran -c test_f.f
g++ -o test_run test_f.o test_c++.o -lgfortran

Thanks a lot!
Best regards,
Taya


>> Taisiya Mineeva wrote:
>>> Dear All,
>>>
>>> Thank you for your prompt reponse.
>>>
>>> As for the test programm following compiles/links and produces correct
>>> output:
>>>> g++ -c test_c++.cc
>>>> g77 -c test_f.f
>>>> g++ -o test_run test_f.o test_c++.o
>>>
>>> When using gfortran instead of g77, I have following:
>>>> g++ -c test_c++.cc
>>>> gfortran -c test_f.f
>>>> g++ -o test_run test_f.o test_c++.o
>>> test_f.o: In function `mymain_':
>>> test_f.f:(.text+0x2e): undefined reference to `_gfortran_copy_string'
>>> collect2: ld returned 1 exit status
>>>
>>> I am not an expert with fortran, but for the reference, the test
>>> programm
>>> is in : /u/home/mineeva/Lepto/TEST.
>>>
>>> Thank you in advance,
>>> Taya
>>>
>>>
>>>> Hello,
>>>>
>>>> I am writing to you with the question concerning calling a C++/ROOT
>>>> function in Fortran code.
>>>>
>>>> I have a working test example of an external C++ function that is
>>>> called
>>>> in Fortran. This compiles/links well with g77/g++. However, the same
>>>> procedure for compiling and linking does not work with gfortran/g++.
>>>>
>>>> My problem is that in order to compile Lepto generator (Fortran),
>>>> where I
>>>> am calling a C++ fnc, I need to use a set of cernlibs that have been
>>>> compiled with gfortran. But the call in Fortran to C++ function does
>>>> not
>>>> compiles with gfortran.
>>>>
>>>> I would appreciate some guidance as to how proceed with gfortran/g++
>>>> on
>>>> JLab CUE to call C++ from Fortran.
>>>>
>>>> Thank you in advance,
>>>> Taya
>>>>
>>>>
>>>>
>>>>
>>>>
>>>
>>>
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