Dear Andre, If I am not mistaken, this patch make the following test (pr57305, second attachment):
subroutine add_element_poly(a,e) use iso_c_binding class(*),allocatable,intent(inout),target :: a(:) class(*),intent(in),target :: e class(*),allocatable,target :: tmp(:) type(c_ptr) :: dummy interface function memcpy(dest,src,n) bind(C,name="memcpy") result(res) import type(c_ptr) :: res integer(c_intptr_t),value :: dest integer(c_intptr_t),value :: src integer(c_size_t),value :: n end function end interface if (.not.allocated(a)) then allocate(a(1), source=e) else allocate(tmp(size(a)),source=a) deallocate(a) allocate(a(size(tmp)+1),mold=e) dummy = memcpy(loc(a(1)),loc(tmp),sizeof(tmp)) dummy = memcpy(loc(a(size(tmp)+1)),loc(e),sizeof(e)) end if end subroutine to give an ICE (a regression): pr57305_1.f90:24:0: dummy = memcpy(loc(a(1)),loc(tmp),sizeof(tmp)) 1 internal compiler error: Segmentation fault: 11 The ICE is caused by sizeof(tmp). TIA Dominique