[Bug libfortran/18297] gfortran : file opening fails if only read access

[mimo2 at free dot fr]

------- Additional Comments From mimo2 at free dot fr  2004-11-05 09:15 -------
 I don't know what is the "true" fortran convention, but this code
      program test
      open(unit=10,file='test.txt',status='old')
      write(*,*) ' file is read'
      end
 works on g77 (and all the other compilers I've used) even when the
 file test.txt is in readonly access. And you would then break backward
 compatibility with g77 !!
   I think we should have this "Fortran runtime error: Permission denied" only
 if we try to write on the file, not at the opening (and subsequent reading). 

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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18297