https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61179
Dominique d'Humieres <dominiq at lps dot ens.fr> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |WAITING Last reconfirmed| |2014-05-13 Ever confirmed|0 |1 --- Comment #2 from Dominique d'Humieres <dominiq at lps dot ens.fr> --- module m implicit none contains subroutine test(x) integer, parameter :: dp=kind(0.0d0) class(*), intent(in) :: x select type(x) type is(complex) write(*,*) "complex" print *, x ! type is(double complex) type is(complex(dp)) write(*,*) "double complex" print *, x end select end subroutine test end module m use m complex :: y=(1.0,2.0) complex(8) :: z=(2.0,3.0) call test(y) call test(z) end compiles and gives at run time complex ( 1.00000000 , 2.00000000 ) double complex ( 2.0000000000000000 , 3.0000000000000000 ) > So, my example above is not required to work, and I think the error > message is probably OK. (Although one could maybe consider allowing it > as part of the GNU extension...) IMO the GNU extensions should be restricted to the compatibility with g77. I am in favor to close this PR as WONTFIX.