anchor.diff:          !! OBJECT INSTANTIATION !!
           !!!!!!!!!!!!!!!!!!!!!!!!!!
   
  -        !> @brief Fortran interface to geopm_ctl_create C function.
  +        !> @brief Fortran interface to @link geopm_ctl.h geopm_ctl_create @endlink C function.
  +        !> @ingroup fortran
           integer(kind=c_int) function geopm_ctl_create(policy, comm, ctl) bind(C, name="geopm_ctl_create_f")
               import
               implicit none
  
positive.code:             type(c_ptr), intent(out) :: ctl
          end function geopm_ctl_create
  
          !> @brief Fortran interface to geopm_ctl_destroy C function.
          integer(kind=c_int) function geopm_ctl_destroy(ctl) bind(C)
              import
              implicit none
  
negative.code:         !! POWER MANAGEMENT !!
          !!!!!!!!!!!!!!!!!!!!!!
  
          !> @brief Fortran interface to @link geopm_ctl.h geopm_ctl_step @endlink C function.
          !> @ingroup fortran
          integer(kind=c_int) function geopm_ctl_step(ctl) bind(C)
              import
              implicit none
              type(c_ptr), value, intent(in) :: ctl
          end function geopm_ctl_step
  
          !> @brief Fortran interface to @link geopm_ctl.h geopm_ctl_run @endlink C function.
          !> @ingroup fortran
          integer(kind=c_int) function geopm_ctl_run(ctl) bind(C)
              import
              implicit none
  