pc_identity.f90

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module identity
  use math, only : copy
  use precon, only : pc_t
  use num_types, only : rp
  implicit none
  private
 
  type, public, extends(pc_t) :: ident_t
   contains
     procedure, pass(this) :: solve => ident_solve
     procedure, pass(this) :: update => ident_update
  end type ident_t
 
contains
 
  subroutine ident_solve(this, z, r, n)
    integer, intent(in) :: n
    class(ident_t), intent(inout) :: this
    real(kind=rp), dimension(n), intent(inout) :: z
    real(kind=rp), dimension(n), intent(inout) :: r
    call copy(z, r, n)
  end subroutine ident_solve
 
  subroutine ident_update(this)
    class(ident_t), intent(inout) :: this
  end subroutine ident_update
 
end module identity