http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52052
Bug #: 52052
Summary: [Coarray] Properly handle coarray components of
derived types
Classification: Unclassified
Product: gcc
Version: 4.7.0
Status: UNCONFIRMED
Keywords: wrong-code
Severity: normal
Priority: P3
Component: fortran
AssignedTo: unassig...@gcc.gnu.org
ReportedBy: bur...@gcc.gnu.org
Special care needs to be taken with coarrays - and in particular coarray
components; they may only be collectively allocated and deallocated.
In particular:
Intrinsic assignment: Contrary to normal allocatable components,
no reallocation is allowed. The programmer guarantees that the shape and
type parameters are suitable.
Caveat: Be aware of allocatable components nested within coarray components -
and issues with polymorphism.
Please also check that:
- Calling caf_register is done with ALLOCATE, also with SOURCE=
- Calling of caf_deregister when leaving the scope/calling DEALLOCATE
- Special handling of polymorphic coarray components
- Whether there are issues regarding _def_init and _copy; cf. PR 51947.
Consider whether a simple INTENT_INOUT for _copy would be more appropriate.
- Check that there is indeed no realloc on assignment for coarray variables.
