http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50625
Bug #: 50625 Summary: [4.6/4.7 Regression][OOP] ALLOCATABLE attribute lost for module CLASS variables Classification: Unclassified Product: gcc Version: 4.7.0 Status: UNCONFIRMED Keywords: rejects-valid Severity: normal Priority: P3 Component: fortran AssignedTo: unassig...@gcc.gnu.org ReportedBy: bur...@gcc.gnu.org CC: ja...@gcc.gnu.org The following program compiles with GCC 4.5 and ifort, but fails with GCC 4.6 and GCC 4.7 with: if(allocated(x)) stop 1 Error: 'array' argument of 'allocated' intrinsic at (1) must be ALLOCATABLE module m type t end type t class(t), allocatable :: x end module m use m implicit none if(allocated(x)) stop end