dcdatetimelt.f90 File Reference

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Functions/Subroutines
logical function	dcdatetime_lt_tt (time1, time2)
logical function	dcdatetime_lt_ff (diff1, diff2)
logical function	dcdatetime_lt_fi (diff, factor)
logical function	dcdatetime_lt_if (factor, diff)

Function/Subroutine Documentation

dcdatetime_lt_ff()

logical function dcdatetime_lt_ff	(	type(dc_difftime), intent(in)	diff1,
		type(dc_difftime), intent(in)	diff2
	)

Definition at line 43 of file dcdatetimelt.f90.

    !
    ! 2 つの引数の日時差を比較します.
    ! 2 つ目の引数に格納される日時差が 1 つ目の引数に格納される日時差
    ! よりも大きい場合, .true. が返ります.
    !
    use dc_date_generic, only: evalsec
    use dc_date_types, only: dc_datetime, dc_difftime
    use dc_scaledsec, only: &
      & operator(<), operator(>), operator(<=), operator(>=), operator(==)
    implicit none
    type(dc_difftime), intent(in):: diff1, diff2
  continue
    if ( diff1 % day_seconds == diff2 % day_seconds ) then

      if ( diff1 % mon < diff2 % mon ) then
        result = .true.  ; return
      elseif ( diff1 % mon > diff2 % mon ) then
        result = .false. ; return
      end if
      if ( diff1 % day < diff2 % day ) then
        result = .true.  ; return
      elseif ( diff1 % day > diff2 % day ) then
        result = .false. ; return
      end if
      if ( diff1 % sec < diff2 % sec ) then
        result = .true.  ; return
      elseif ( diff1 % sec > diff2 % sec ) then
        result = .false. ; return
      end if
      result = .false.
    else

      if (evalsec(diff1) < evalsec(diff2)) then
        result = .true.
      else
        result = .false.
      end if
    end if

dcdatetime_lt_fi()

logical function dcdatetime_lt_fi	(	type(dc_difftime), intent(in)	diff,
		integer, intent(in)	factor
	)

Definition at line 85 of file dcdatetimelt.f90.

    !
    ! 2 つの引数の日時差を比較します.
    ! 2 つ目の引数に格納される日時差が 1 つ目の引数に格納される日時差
    ! よりも大きい場合, .true. が返ります.
    !
    use dc_date_generic, only: evalsec
    use dc_date_types, only: dc_datetime, dc_difftime
    implicit none
    type(dc_difftime), intent(in):: diff
    integer, intent(in):: factor
  continue
    result = evalsec(diff) < factor

dcdatetime_lt_if()

logical function dcdatetime_lt_if	(	integer, intent(in)	factor,
		type(dc_difftime), intent(in)	diff
	)

Definition at line 100 of file dcdatetimelt.f90.

    !
    ! 2 つの引数の日時差を比較します.
    ! 2 つ目の引数に格納される日時差が 1 つ目の引数に格納される日時差
    ! よりも大きい場合, .true. が返ります.
    !
    use dc_date_generic, only: evalsec
    use dc_date_types, only: dc_datetime, dc_difftime
    implicit none
    integer, intent(in):: factor
    type(dc_difftime), intent(in):: diff
  continue
    result = factor < evalsec(diff)

dcdatetime_lt_tt()

logical function dcdatetime_lt_tt	(	type(dc_datetime), intent(in)	time1,
		type(dc_datetime), intent(in)	time2
	)

Definition at line 11 of file dcdatetimelt.f90.

    !
    ! 2 つの引数の日時を比較します.
    ! 2 つ目の引数に格納される日時が 1 つ目の引数に格納される日時
    ! よりも進んでいる場合, .true. が返ります.
    !
    use dc_date_generic, only: eval, evalsclsec, zonetodiff
    use dc_date_types, only: dc_datetime, dc_difftime
    use dc_scaledsec, only: dc_scaled_sec, &
      & operator(==), operator(<), operator(>), operator(<=), operator(>=), &
      & operator(+)
    implicit none
    type(dc_datetime), intent(in):: time1, time2
    type(dc_scaled_sec):: year1, year2, time1_sec, time2_sec
  continue
    call eval(time1, sclyear=year1)
    call eval(time2, sclyear=year2)
    if (year1 < year2) then
      result = .true.
    elseif (year1 > year2) then
      result = .false.
    else
      time1_sec = evalsclsec(time1) + evalsclsec(zonetodiff(time1 % zone))
      time2_sec = evalsclsec(time2) + evalsclsec(zonetodiff(time2 % zone))
      if (time1_sec < time2_sec) then
        result = .true.
      else
        result = .false.
      end if
    end if