dcdatetimeadd.f90

Go to the documentation of this file.

! -*- mode: f90; coding: utf-8 -*-
!-----------------------------------------------------------------------
! Copyright (c) 2000-2026 Gtool Development Group. All rights reserved.
!-----------------------------------------------------------------------
 
function dcdatetime_add_ft(diff, time) result(result)
  use dc_date_types, only: dc_datetime, dc_difftime
  use dc_date_generic, only: dcdatetimecreate, eval
  use dc_scaledsec, only: dc_scaled_sec, &
    & operator(<), operator(>), operator(<=), operator(>=), &
    & operator(+), operator(-), operator(*), operator(/), &
    & modulo, int, abs, sign
  implicit none
  type(dc_datetime):: result
  type(dc_difftime), intent(in):: diff
  type(dc_datetime), intent(in):: time
  type(dc_scaled_sec):: time_year, time_mon, time_day, time_sec
  integer:: time_caltype
  character(6):: time_zone
continue
  call eval(time, sclyear = time_year, sclmon = time_mon, &
    & sclday = time_day, sclsec = time_sec, &
    & caltype = time_caltype, zone = time_zone)
  call dcdatetimecreate(result, sclyear = time_year, &
    & sclmon = time_mon + diff % mon, &
    & sclday = time_day + diff % day, &
    & sclsec = time_sec + diff % sec, &
    & caltype = time_caltype, zone = time_zone)
end function dcdatetime_add_ft
 
  function dcdatetime_add_tf(time, diff) result(result)
    use dc_date_generic, only: operator(+)
    use dc_date_types, only: dc_datetime, dc_difftime
    implicit none
  type(dc_datetime):: result
  type(dc_datetime), intent(in):: time
  type(dc_difftime), intent(in):: diff
continue
  result = diff + time
end function dcdatetime_add_tf
 
function dcdatetime_add_ff(diff1, diff2) result(result)
  use dc_date_types, only: dc_datetime, dc_difftime
  use dc_date_internal, only: dcdate_normalize, dcdate_nondimcheck
  use dc_scaledsec, only: operator(+)
  implicit none
  type(dc_difftime):: result
  type(dc_difftime), intent(in):: diff1, diff2
continue
  result % mon = diff1 % mon + diff2 % mon
  result % day = diff1 % day + diff2 % day
  result % sec = diff1 % sec + diff2 % sec
  result % day_seconds = diff1 % day_seconds
  call dcdate_nondimcheck('dc_date#operator(+)', diff1, diff2, result)
  call dcdate_normalize(result % day, result % sec, result % day_seconds, result % nondim_flag)
end function dcdatetime_add_ff
 
function dcdatetime_add_fd(diff, sec) result(result)
  use dc_date_types, only: dc_datetime, dc_difftime
  use dc_date_internal, only: dcdate_normalize, dcdate_nondimcheck
  use dc_scaledsec, only: operator(+)
  use dc_types, only: dp
  implicit none
  type(dc_difftime):: result
  type(dc_difftime), intent(in):: diff
  real(dp), intent(in):: sec
continue
  result % mon = diff % mon
  result % day = diff % day
  result % sec = diff % sec + sec
  result % day_seconds = diff % day_seconds
  call dcdate_normalize(result % day, result % sec, result % day_seconds, result % nondim_flag)
end function dcdatetime_add_fd
 
function dcdatetime_add_fr(diff, sec) result(result)
  use dc_date_types, only: dc_datetime, dc_difftime
  use dc_date_generic, only: operator(+)
  use dc_scaledsec, only: operator(+)
  use dc_types, only: dp
  implicit none
  type(dc_difftime):: result
  type(dc_difftime), intent(in):: diff
  real, intent(in):: sec
continue
  result = diff + real( sec, dp )
end function dcdatetime_add_fr
 
function dcdatetime_add_fi(diff, sec) result(result)
  use dc_date_types, only: dc_datetime, dc_difftime
  use dc_date_generic, only: operator(+)
  use dc_scaledsec, only: operator(+)
  use dc_types, only: dp
  implicit none
  type(dc_difftime):: result
  type(dc_difftime), intent(in):: diff
  integer, intent(in):: sec
continue
  result = diff + real( sec, dp )
end function dcdatetime_add_fi