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51 lines
1.2 KiB
51 lines
1.2 KiB
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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C=======================================================================
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LOGICAL FUNCTION CPUNAL(IU)
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CHARACTER*40 CPUHLB
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COMMON /CPHLBN/CPUHLB
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INTEGER CPUNIT(20)
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INTEGER CPUNIF
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COMMON /CPUN/CPUNIT,CPUNIF
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CHARACTER*20 TERM
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CHARACTER*80 LINBUF(24)
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COMMON /REBUF/LINBUF,TERM
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INTEGER LINLEN(24)
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COMMON /REBUF2/NL,LINLEN
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CPUNAL = .TRUE.
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IF (CPUNIF.NE.12345) THEN
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I = 1
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2260 IF (.NOT. (I.LE.20)) GO TO 2280
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CPUNIT(I) = 80 + I - 1
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I = I + 1
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GO TO 2260
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2280 CONTINUE
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CPUNIF = 12345
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END IF
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I = 1
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2290 IF (.NOT. (I.LE.20)) GO TO 2310
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IF (CPUNIT(I).EQ.0) THEN
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GO TO 2300
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END IF
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IU = CPUNIT(I)
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CPUNIT(I) = 0
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RETURN
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2300 I = I + 1
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GO TO 2290
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2310 CONTINUE
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CPUNAL = .FALSE.
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CALL CPUERR('Cannot allocate logical unit.',2)
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RETURN
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END
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