http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47350
Summary: Deferred string length: ALLOCATE should allow MOLD=
Product: gcc
Version: 4.6.0
Status: UNCONFIRMED
Keywords: rejects-valid
Severity: normal
Priority: P3
Component: fortran
AssignedTo: [email protected]
ReportedBy: [email protected]
Currently, gfortran allows:
character(len=:) :: str, str2
ALLOCATE( str, SOURCE=str2)
but it does not allow for
ALLOCATE( str, MOLD=str2)
which fails with
Error: Allocate-object at (1) with a deferred type parameter requires either
a type-spec or SOURCE tag
Expected: MOLD (which is also a source-expr) is also accepted.
>From Fortran 2008 (which added MOLD=, which is already implemented in
gfortran):
C629 (R626) If any allocate-object has a deferred type parameter, is unlimited
polymorphic, or is of abstract type, either type-spec or source-expr shall
appear.
If source-expr is a pointer, it shall be associated with a target. If
source-expr is allocatable, it shall be allocated.
If MOLD= appears and source-expr is a variable, its value need not be defined.
