https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82453
Thomas Koenig <tkoenig at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
CC| |tkoenig at gcc dot gnu.org
Resolution|--- |INVALID
--- Comment #3 from Thomas Koenig <tkoenig at gcc dot gnu.org> ---
You are passing an unallocated array to an input
function, probably in the expectation that it will
be allocated by the READ.
This is a feature which Fortran doesn't have. You have
to allocate the array manually, using an ALLOCATE statement,
or use a non-allocatable array as in your second example.
There is no "allocate on read" comparable to "allocate
on assignment".
The segfault is the usual result of trying to do something
with an unallocated array.
(And yes, this is something that I have also wanted, from a
user perspective. From an implementor's perspective, maybe less :-)
