obuild Subroutine

  subroutine obuild(file,descr,thick,total,variable_name)

    !! Routine to print out a description, the thickness and
    !! summed build of a component of the radial or vertical build
    !! author: P J Knight, CCFE, Culham Science Centre
    !! file : input integer : Fortran output unit identifier
    !! descr : input character string : Description of the component
    !! thick : input real : Thickness of the component (m)
    !! total : input real : Total build, including this component (m)
    !! This routine writes out a description, the thickness and
    !! summed build of a component of the radial or vertical build.
    !!     !
    ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

    use numerics, only: boundl, boundu
		use constants, only: electron_charge
		use maths_library, only: variable_error
    implicit none

    !  Arguments

    integer, intent(in) :: file
    character(len=*), intent(in) :: descr
    character(len=*), optional :: variable_name
    real(8), intent(in) :: thick, total

    !  Local variables

    character(len=50) :: dum30
    character(len=40) :: dum20

    ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

    !  Replace descr with dummy string of the correct length.
    !  This counters problems that would occur if the original string
    !  was the wrong length.

    dum30 = descr
    if (present(variable_name)) then
        dum20 = variable_name
    else
        dum20 = ''
    end if

    write(file,10) dum30, thick, total, dum20
10  format(1x,a,t42,f10.3,t58,f10.3,t71,a)

  end subroutine obuild