[Patch, fortran] PR97612 [F08] Structure constructor of type with nested allocatable array components fails to compile

[Paul Richard Thomas]

Hi All,

Another one bites the dust! The patch is commented such that it is
self-explanatory.

Regtests on FC33/x86_64 - OK for master?

Paul

Fortran: Correct missing structure constructor comps. [PR97612].

2020-12-27  Paul Thomas  <pault@gcc.gnu.org>

gcc/fortran
PR fortran/97612
* primary.c (build_actual_constructor): Missing allocatable
components are set unallocated using EXPR_NULL. Then missing
components are tested for a default initializer.

gcc/testsuite/
PR fortran/97612
* gfortran.dg/structure_constructor_17.f90: New test.
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