[Spglib-users] Segmentation Fault with Fortran interface

[Navaneetha K. <nav...@ca...>]

Hi everyone,

I am trying to use spglib library; I am unable to execute the Fortran
example in the example folder.

I have been getting segmentation faults and they point to line 403 in
spglib_f08.f90 in the debugger.

"dset % wyckoffs         = wyckoffs"

If I comment out lines 393, 394, 398, 399, 403 and 404 (all lines involving
assignment and reassignments of pointers wyckoffs and equivalent_atoms) in
the file spglib_f08.f90, the code seems to execute completely without
error. However, since I don't know a lot about the algorithm and the
implementation, I don't want to risk using this interface by commenting out
those lines.

I executed the ruby script in tests folder and that worked fine. I am using
gcc 4.9.2 and gfortran 4.9.2 to compile the library and the example code. I
have tried using this library with ubuntu and redhat systems with different
gcc compilers and they all seem to fail with this example.

Since the problem seems to be with a pointer assignment, I wondering if
there is any major memory leak/wrong memory access that I am unable to see.
It would be great if someone can address this issue soon.

Thanks,
-
Navaneeth
Caltech