[patch,gfortran] PR 20541: ALLOCATABLE components of derived types

[Erik Edelmann <erik dot edelmann at iki dot fi>]

:ADDPATCH fortran:

Here is a patch to implement support for ALLOCATABLE components
of derived types (part of TR15581 and F2003).  It adds a new
field 'allocatable' to the struct gfc_component, and a few bits
and pieces of code to take this new possibility into account.

Bubblestrapped and reg.-tested on mainline (could a patch like
this be OK for 4.0?) on Linux/x86.  Please commit if OK.


2005-09-28  Erik Edelmann  <erik.edelmann@iki.fi>

	PR fortran/20541
	* gfortran.h (gfc_component): Added field "allocatable".
	* check.c (gfc_check_allocated): Check attributes
          returned by gfc_variable_attr(), instead of array->symtree->n.sym->attr.
	* primary.c (gfc_variable_attr): Check for allocatable components
	  of derived types.
	* decl.c (build_struct): Likewise.
	* trans-types.c (gfc_get_derived_type): Likewise.
	* resolve.c (derived_allocatable): New function.
	  (resolve_transfer): Use it.
	* symbol.c (gfc_set_component_attr): Set the "allocatable" attribute.



2005-09-28  Erik Edelmann  <erik.edelmann@iki.fi>

	PR fortran/20541
	* gfortran.dg/der_allocatable_1.f90: New.
	* gfortran.dg/der_io_4.f90: New.



        Erik

Attachment: 20541.diff
Description: Text document

Attachment: der_allocatable_1.f90
Description: Text document

Attachment: der_io_4.f90
Description: Text document