mdate.f File Reference

UPDATE A DATE GIVEN INCREMENT IN MINUTES. More...

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Functions/Subroutines
subroutine	eusage
program	mdate

Detailed Description

UPDATE A DATE GIVEN INCREMENT IN MINUTES.

Author

KEYSER

Date

2001-09-20

PROGRAM TO COMPUTE A VERIFYING DATE GIVEN AN INCREMENT IN MINUTES AND THE INITIAL DATE.

PROGRAM HISTORY LOG:

• 2001-09-20 KEYSER BASED ON UTILITY PROGRAM NDATE EXCEPTS UPDATES BY MINUTES INSTEAD OF HOURS

  INPUT ARGUMENT LIST

  • MINUTES - INCREMENT IN MINUTES (MAY BE NEGATIVE) MINUTES DEFAULTS TO ZERO.
  • IDATE - INITIAL DATE IN YYYYMMDDHHMM FORMAT. IDATE DEFAULTS TO THE CURRENT UTC DATE, HOUR AND MINUTE. FIRST CENTURY DATES WILL CAUSE ABORT AFTER 1 SEPT 1999. OUTPUT ARGUMENT LIST:
  • MDATE - VERIFYING DATE IN YYYYMMDDHHMM FORMAT. EXIT STATES:
  • 0 - SUCCESS
  • 1 - FAILURE; INVALID ARGUMENT
  • 2 - FAILURE; INCORRECT NUMBER OF ARGUMENTS

SUBPROGRAMS CALLED:

• IARGC GET NUMBER OF ARGUMENTS
• GETARG GET ARGUMENT
• W3MOVDAT RETURN A DATE FROM A TIME INTERVAL AND DATE
• W3UTCDAT RETURN THE UTC DATE AND TIME
• ERRMSG WRITE A MESSAGE TO STDERR
• ERREXIT EXIT PROGRAM (W3LIB)

Definition in file mdate.f.