http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49802
Summary: [F2008] Handle VALUE with arrays (DIMENSION)
Product: gcc
Version: 4.7.0
Status: UNCONFIRMED
Keywords: rejects-valid
Severity: normal
Priority: P3
Component: fortran
AssignedTo: [email protected]
ReportedBy: [email protected]
Depends on: 35203
Blocks: 39627
Fortran 2008 relaxed the constrains with regards to VALUE. While Fortran 2003
only allowed it for objects which can be transferred by pass-by-value (in
sprite of BIND(C) dummys/C nonpointer parameters), Fortran 2003 now allows for
everything which may be copied in, which is nearly everything.
Fortran 2008 has:
C557 An entity with the VALUE attribute shall be a dummy data object
that is not an assumed-size array or a coarray, and does not have
a coarray ultimate component.
C558 An entity with the VALUE attribute shall not have the ALLOCATABLE,
INTENT (INOUT), INTENT(OUT), POINTER, or VOLATILE attributes.
Fortran 2003 has:
C527 (R501) If the VALUE attribute is specified, the PARAMETER, EXTERNAL,
POINTER, ALLOCATABLE, DIMENSION, VOLATILE, INTENT(INOUT), or INTENT(OUT)
attribute shall not be specified.
Thus: DIMENSION has been removed and just attr.codimension/attr.coarray_comp
are prohibited - as a dummy with assumed size as there copy-in/copy-out will
fail.
