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71 lines
1.8 KiB
71 lines
1.8 KiB
2 years ago
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C Copyright(C) 1999-2020 National Technology & Engineering Solutions
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C of Sandia, LLC (NTESS). Under the terms of Contract DE-NA0003525 with
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C NTESS, the U.S. Government retains certain rights in this software.
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C
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C See packages/seacas/LICENSE for details
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SUBROUTINE ADDLXN (MXND, LXN, NUID, NAVAIL, IAVAIL, NODE, LINE,
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& NNN, ERR, NOROOM)
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C***********************************************************************
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C SUBROUTINE ADDLXN = ADDS LINE TO THE LIST OF LINES FOR THIS NODE
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C***********************************************************************
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DIMENSION LXN (4, MXND), NUID (MXND)
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LOGICAL ERR, NOROOM
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ERR = .FALSE.
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NN = NODE
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100 CONTINUE
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C LINK TO CONTINUATION
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IF (LXN (4, NN) .LT. 0) THEN
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NN = IABS (LXN (4, NN))
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GOTO 100
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C THERE IS ROOM FOR THE NEW LINE WITHOUT CONTINUING
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ELSEIF (LXN (4, NN) .EQ. 0) THEN
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DO 110 I = 1, 4
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IF (LXN (I, NN) .EQ. 0) THEN
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LXN (I, NN) = LINE
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RETURN
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ENDIF
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110 CONTINUE
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C THIS CAN'T HAPPEN
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CALL MESSAGE('ERROR IN ADDLXN')
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ERR = .TRUE.
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ELSE
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C CREATE A CONTINUATION ENTRY
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IF (NAVAIL .LT. 1) THEN
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WRITE ( * , 10000)NODE
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ERR = .TRUE.
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NOROOM = .TRUE.
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RETURN
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ENDIF
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NEW = IAVAIL
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IF (NEW .GT. NNN)NNN = NEW
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IAVAIL = LXN (4, IAVAIL)
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NAVAIL = NAVAIL - 1
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LXN (1, NEW) = - LXN (4, NN)
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LXN (2, NEW) = LINE
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IF (LXN (2, NN) .LT. 0)LXN (2, NEW) = - LINE
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LXN (3, NEW) = 0
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LXN (4, NEW) = 0
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LXN (4, NN) = - NEW
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NUID (NEW) = 0
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ENDIF
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RETURN
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10000 FORMAT (' NODE TABLE OVERFLOW IN ADDLXN AT NODE', I5)
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END
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