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C $Header: /u/gcmpack/MITgcm/pkg/cal/cal_checkdate.F,v 1.1 2001/05/14 22:07:26 heimbach Exp $ |
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|
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#include "CAL_CPPOPTIONS.h" |
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|
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subroutine cal_CheckDate( |
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I date, |
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O valid, |
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O calerr, |
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I mythid |
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& ) |
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|
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c ================================================================== |
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c SUBROUTINE cal_CheckDate |
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c ================================================================== |
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c |
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c o Check whether the array date conforms with the required format. |
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c |
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c started: Christian Eckert eckert@mit.edu 30-Jun-1999 |
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c |
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c changed: Christian Eckert eckert@mit.edu 29-Dec-1999 |
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c |
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c - restructured the original version in order to have a |
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c better interface to the MITgcmUV. |
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c |
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c Christian Eckert eckert@mit.edu 03-Feb-2000 |
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c |
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c - Introduced new routine and function names, cal_<NAME>, |
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c for verion 0.1.3. |
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c |
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c 21-Sep-2003: fixed check_sign logic to work with |
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c negative intervals (menemenlis@jpl.nasa.gov) |
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c |
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c ================================================================== |
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c SUBROUTINE cal_CheckDate |
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c ================================================================== |
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implicit none |
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|
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c == global variables == |
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|
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#include "cal.h" |
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|
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c == routine arguments == |
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|
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integer date(4) |
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logical valid |
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integer calerr |
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integer mythid |
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|
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c == local variables == |
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|
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integer yy,mm,dd |
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integer nsecs |
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integer lp,wd |
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integer hhmmss |
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integer yymmdd |
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integer fac |
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_RL check_sign |
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|
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c == end of interface == |
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|
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valid = .true. |
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hhmmss = 0 |
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calerr = 0 |
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fac = 1 |
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|
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if (date(4) .le. 0) then |
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if (date(4) .ne. -1) then |
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calerr = 1801 |
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else |
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if (date(3) .ne. 0) then |
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calerr = 1802 |
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else |
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check_sign = sign(1,dble(date(1))*dble(date(2))) |
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if (check_sign .lt. 0) then |
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calerr = 1803 |
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else |
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call cal_ConvDate(date,yy,mm,dd,nsecs,lp,wd,mythid) |
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if (nsecs .lt. 0) fac = -1 |
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hhmmss = fac*nsecs/secondsperminute |
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hhmmss = hhmmss/minutesperhour*10000 + |
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& mod(hhmmss,minutesperhour)*100 + |
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& mod(fac*nsecs,secondsperminute) |
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hhmmss = fac*hhmmss |
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if (date(2) .ne. hhmmss) then |
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calerr = 1804 |
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endif |
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endif |
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endif |
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endif |
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else |
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if (date(4) .gt. 8) then |
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calerr = 1805 |
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else |
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if ((date(3) .ne. 1) .and. |
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& (date(3) .ne. 2)) then |
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calerr = 1806 |
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else |
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check_sign = sign(1,dble(date(1))*dble(date(2))) |
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if (check_sign .lt. 0) then |
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calerr = 1803 |
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else |
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call cal_ConvDate( date,yy,mm,dd,nsecs,lp,wd,mythid ) |
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if (date(1) .lt. refdate(1)) then |
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calerr = 1807 |
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else |
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hhmmss = nsecs/secondsperminute |
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hhmmss = hhmmss/minutesperhour*10000 + |
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& mod(hhmmss,minutesperhour)*100 + |
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& mod(nsecs,secondsperminute) |
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endif |
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if (date(2) .ne. hhmmss) then |
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calerr = 1804 |
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endif |
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yymmdd = yy*10000 + mm*100 + dd |
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if (date(1) .ne. yymmdd) then |
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calerr = 1808 |
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endif |
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endif |
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endif |
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endif |
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endif |
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|
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if (calerr .ne. 0) valid = .not. valid |
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|
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return |
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end |
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