05p1_constant_parametrizations_2D.f90

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!----------------------------------------------------------------------------------------
!
! This file is part of EFTCAMB.
!
! Copyright (C) 2013-2016 by the EFTCAMB authors
!
! The EFTCAMB code is free software;
! You can use it, redistribute it, and/or modify it under the terms
! of the GNU General Public License as published by the Free Software Foundation;
! either version 3 of the License, or (at your option) any later version.
! The full text of the license can be found in the file eftcamb/LICENSE at
! the top level of the EFTCAMB distribution.
!
!----------------------------------------------------------------------------------------



!----------------------------------------------------------------------------------------


module eftcamb_constant_parametrization_2d

    use precision
    use amlutils
    use eft_def
    use eftcamb_cache
    use eftcamb_abstract_parametrizations_2d

    implicit none

    private

    public constant_parametrization_2d

    ! ---------------------------------------------------------------------------------------------
    type, extends ( parametrized_function_2d ) :: constant_parametrization_2d

        real(dl) :: constant_value

    contains

        ! utility functions:
        procedure :: set_param_number      => constantparametrized2dsetparamnumber      
        procedure :: init_parameters       => constantparametrized2dinitparams          
        procedure :: parameter_value       => constantparametrized2dparametervalues     
        procedure :: feedback              => constantparametrized2dfeedback            

        ! evaluation procedures:
        procedure :: value                 => constantparametrized2dvalue               
        procedure :: first_derivative_x    => constantparametrized2dfirstderivativex    
        procedure :: first_derivative_y    => constantparametrized2dfirstderivativey    
        procedure :: second_derivative_x   => constantparametrized2dsecondderivativex   
        procedure :: second_derivative_y   => constantparametrized2dsecondderivativey   
        procedure :: second_derivative_xy  => constantparametrized2dsecondderivativexy  

    end type constant_parametrization_2d

contains

    ! ---------------------------------------------------------------------------------------------
    ! Implementation of the constant function.
    ! ---------------------------------------------------------------------------------------------

    ! ---------------------------------------------------------------------------------------------
    subroutine constantparametrized2dsetparamnumber( self )

        implicit none

        class(constant_parametrization_2d) :: self

        ! initialize the number of parameters:
        self%parameter_number = 1

    end subroutine constantparametrized2dsetparamnumber

    ! ---------------------------------------------------------------------------------------------
    subroutine constantparametrized2dinitparams( self, array )

        implicit none

        class(constant_parametrization_2d)                      :: self
        real(dl), dimension(self%parameter_number), intent(in)  :: array

        self%constant_value = array(1)

    end subroutine constantparametrized2dinitparams

    ! ---------------------------------------------------------------------------------------------
    subroutine constantparametrized2dfeedback( self, print_params )

        implicit none

        class(constant_parametrization_2d)  :: self
        logical, optional                   :: print_params

        integer                             :: i
        real(dl)                            :: param_value
        character(len=EFT_names_max_length) :: param_name
        logical                             :: print_params_temp

        if ( present(print_params) ) then
            print_params_temp = print_params
        else
            print_params_temp = .true.
        end if

        write(*,*)     'Constant function: ', self%name
        if ( print_params_temp ) then
            do i=1, self%parameter_number
                call self%parameter_names( i, param_name  )
                call self%parameter_value( i, param_value )
                write(*,'(a23,a,F12.6)') param_name, '=', param_value
            end do
        end if

    end subroutine constantparametrized2dfeedback

    ! ---------------------------------------------------------------------------------------------
    subroutine constantparametrized2dparametervalues( self, i, value )

        implicit none

        class(constant_parametrization_2d) :: self
        integer     , intent(in)           :: i
        real(dl)    , intent(out)          :: value

        select case (i)
            case(1)
                value = self%constant_value
            case default
                write(*,*) 'In constant_parametrization_2D:', self%name
                write(*,*) 'Illegal index for parameter_names.'
                write(*,*) 'Maximum value is:', self%parameter_number
                call mpistop('EFTCAMB error')
        end select

    end subroutine constantparametrized2dparametervalues

    ! ---------------------------------------------------------------------------------------------
    function constantparametrized2dvalue( self, x, y, eft_cache )

        implicit none

        class(constant_parametrization_2d)                 :: self
        real(dl), intent(in)                               :: x
        real(dl), intent(in)                               :: y
        type(eftcamb_timestep_cache), intent(in), optional :: eft_cache
        real(dl) :: constantparametrized2dvalue

        constantparametrized2dvalue = self%constant_value

    end function constantparametrized2dvalue

    ! ---------------------------------------------------------------------------------------------
    function constantparametrized2dfirstderivativex( self, x, y, eft_cache )

        implicit none

        class(constant_parametrization_2d)                 :: self
        real(dl), intent(in)                               :: x
        real(dl), intent(in)                               :: y
        type(eftcamb_timestep_cache), intent(in), optional :: eft_cache
        real(dl) :: constantparametrized2dfirstderivativex

        constantparametrized2dfirstderivativex = 0._dl

    end function constantparametrized2dfirstderivativex

    ! ---------------------------------------------------------------------------------------------
    function constantparametrized2dfirstderivativey( self, x, y, eft_cache )

        implicit none

        class(constant_parametrization_2d)                 :: self
        real(dl), intent(in)                               :: x
        real(dl), intent(in)                               :: y
        type(eftcamb_timestep_cache), intent(in), optional :: eft_cache
        real(dl) :: constantparametrized2dfirstderivativey

        constantparametrized2dfirstderivativey = 0._dl

    end function constantparametrized2dfirstderivativey

    ! ---------------------------------------------------------------------------------------------
    function constantparametrized2dsecondderivativex( self, x, y, eft_cache )

        implicit none

        class(constant_parametrization_2d)                 :: self
        real(dl), intent(in)                               :: x
        real(dl), intent(in)                               :: y
        type(eftcamb_timestep_cache), intent(in), optional :: eft_cache
        real(dl) :: constantparametrized2dsecondderivativex

        constantparametrized2dsecondderivativex = 0._dl

    end function constantparametrized2dsecondderivativex

    ! ---------------------------------------------------------------------------------------------
    function constantparametrized2dsecondderivativey( self, x, y, eft_cache )

        implicit none

        class(constant_parametrization_2d)                 :: self
        real(dl), intent(in)                               :: x
        real(dl), intent(in)                               :: y
        type(eftcamb_timestep_cache), intent(in), optional :: eft_cache
        real(dl) :: constantparametrized2dsecondderivativey

        constantparametrized2dsecondderivativey = 0._dl

    end function constantparametrized2dsecondderivativey

    ! ---------------------------------------------------------------------------------------------
    function constantparametrized2dsecondderivativexy( self, x, y, eft_cache )

        implicit none

        class(constant_parametrization_2d)                 :: self
        real(dl), intent(in)                               :: x
        real(dl), intent(in)                               :: y
        type(eftcamb_timestep_cache), intent(in), optional :: eft_cache
        real(dl) :: constantparametrized2dsecondderivativexy

        constantparametrized2dsecondderivativexy = 0._dl

    end function constantparametrized2dsecondderivativexy

    !----------------------------------------------------------------------------------------

end module eftcamb_constant_parametrization_2d

!----------------------------------------------------------------------------------------