[Bug fortran/34411] hang-up during read of non-expected input

[jvdelisle at gcc dot gnu dot org]

------- Comment #3 from jvdelisle at gcc dot gnu dot org  2007-12-10 02:16 -------
First, you are relying on non-portable behavior:

F95 Standard   9.4.1.5 Error branch - subpart (2)->

"The position of the file specified in the input/output statement becomes
indeterminate"

So gfortran does not try to change the file position after the read and the
subsequent reads continue to read bad values and ad-infinitum.  The loop is in
your program.

Second, as a Quality of Implementation issue, and under these conditions we can
do whatever we want, I have a patch testing that moves the file to the next
record position.  :)


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34411