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xerror.f
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1996-09-28
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SUBROUTINE XERROR(MESSG,NMESSG,NERR,LEVEL)
C
C ABSTRACT
C XERROR PROCESSES A DIAGNOSTIC MESSAGE, IN A MANNER
C DETERMINED BY THE VALUE OF LEVEL AND THE CURRENT VALUE
C OF THE LIBRARY ERROR CONTROL FLAG, KONTRL.
C (SEE SUBROUTINE XSETF FOR DETAILS.)
C
C DESCRIPTION OF PARAMETERS
C --INPUT--
C MESSG - THE HOLLERITH MESSAGE TO BE PROCESSED, CONTAINING
C NO MORE THAN 72 CHARACTERS.
C NMESSG- THE ACTUAL NUMBER OF CHARACTERS IN MESSG.
C NERR - THE ERROR NUMBER ASSOCIATED WITH THIS MESSAGE.
C NERR MUST NOT BE ZERO.
C LEVEL - ERROR CATEGORY.
C =2 MEANS THIS IS AN UNCONDITIONALLY FATAL ERROR.
C =1 MEANS THIS IS A RECOVERABLE ERROR. (I.E., IT IS
C NON-FATAL IF XSETF HAS BEEN APPROPRIATELY CALLED.)
C =0 MEANS THIS IS A WARNING MESSAGE ONLY.
C =-1 MEANS THIS IS A WARNING MESSAGE WHICH IS TO BE
C PRINTED AT MOST ONCE, REGARDLESS OF HOW MANY
C TIMES THIS CALL IS EXECUTED.
C
C EXAMPLES
C CALL XERROR(23HSMOOTH -- NUM WAS ZERO.,23,1,2)
C CALL XERROR(43HINTEG -- LESS THAN FULL ACCURACY ACHIEVED.,
C 43,2,1)
C CALL XERROR(65HROOTER -- ACTUAL ZERO OF F FOUND BEFORE INTERVAL
C 1 FULLY COLLAPSED.,65,3,0)
C CALL XERROR(39HEXP -- UNDERFLOWS BEING SET TO ZERO.,39,1,-1)
C
C WRITTEN BY RON JONES, WITH SLATEC COMMON MATH LIBRARY SUBCOMMITTEE
C LATEST REVISION --- 7 FEB 1979
C
DIMENSION MESSG(NMESSG)
CALL XERRWV(MESSG,NMESSG,NERR,LEVEL,0,0,0,0,0.,0.)
RETURN
END