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From: "everyo at gmx dot net" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug fortran/35824] New: Overloading problems with derived type with allocatable array Date: Fri, 04 Apr 2008 09:19:00 -0000 [thread overview] Message-ID: <bug-35824-16016@http.gcc.gnu.org/bugzilla/> (raw) I have a derived type with an allocatable array and have overloaded some operations. Unfortunately assignments like a=-a don't work. Code in the Module, where I definde the type: type alltype double precision :: a double precision,allocatable :: b(:) end type interface assignment(=) module procedure at_from_at end interface interface operator(-) module procedure neg_at end interface contains subroutine at_from_at(b,a) type(alltype), intent(in) :: a type(alltype), intent(out) :: b b%a=a%a allocate(b%b(2)) b%b=a%b end subroutine at_from_at function neg_at(a) result(b) type(alltype), intent(in) :: a type(alltype) :: b b%a=-a%a allocate(b%b(2)) b%b=-a%b end function neg_at The allocatable array has an dimension of 2 in this example... Now the code: use typemodule type(alltype) t1,t2,t3 allocate(t1%b(2)) t1%a=0.5d0 t1%b(1)=1d0 t1%b(2)=2d0 t2=-t1 write(*,*) t2%a, t2%b t1=-t1 write(*,*) t1%a, t1%b Prints: -0.50000000000000000 -1.00000000000000000 -2.0000000000000000 Segmentation fault It seems that in the Module, the allocatated array of t1 doesn't get passed properly in the t1=-t1 part. I have also seg. faults in situations like a=a+b (where + is overloaded simiarly) The same code works correctly with ifort. -- Summary: Overloading problems with derived type with allocatable array Product: gcc Version: 4.3.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: fortran AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: everyo at gmx dot net GCC build triplet: i686-pc-linux-gnu GCC host triplet: i686-pc-linux-gnu GCC target triplet: i686-pc-linux-gnu http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35824
next reply other threads:[~2008-04-04 9:19 UTC|newest] Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top 2008-04-04 9:19 everyo at gmx dot net [this message] 2008-04-04 10:10 ` [Bug fortran/35824] " dominiq at lps dot ens dot fr 2008-04-04 14:15 ` burnus at gcc dot gnu dot org 2008-05-18 15:38 ` pault at gcc dot gnu dot org 2008-05-18 16:01 ` pault at gcc dot gnu dot org 2008-11-30 8:05 ` pault at gcc dot gnu dot org 2008-11-30 8:51 ` pault at gcc dot gnu dot org
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