xgetua.f

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00001 *DECK XGETUA
00002       SUBROUTINE XGETUA (IUNITA, N)
00003 C***BEGIN PROLOGUE  XGETUA
00004 C***PURPOSE  Return unit number(s) to which error messages are being
00005 C            sent.
00006 C***LIBRARY   SLATEC (XERROR)
00007 C***CATEGORY  R3C
00008 C***TYPE      ALL (XGETUA-A)
00009 C***KEYWORDS  ERROR, XERROR
00010 C***AUTHOR  Jones, R. E., (SNLA)
00011 C***DESCRIPTION
00012 C
00013 C     Abstract
00014 C        XGETUA may be called to determine the unit number or numbers
00015 C        to which error messages are being sent.
00016 C        These unit numbers may have been set by a call to XSETUN,
00017 C        or a call to XSETUA, or may be a default value.
00018 C
00019 C     Description of Parameters
00020 C      --Output--
00021 C        IUNIT - an array of one to five unit numbers, depending
00022 C                on the value of N.  A value of zero refers to the
00023 C                default unit, as defined by the I1MACH machine
00024 C                constant routine.  Only IUNIT(1),...,IUNIT(N) are
00025 C                defined by XGETUA.  The values of IUNIT(N+1),...,
00026 C                IUNIT(5) are not defined (for N .LT. 5) or altered
00027 C                in any way by XGETUA.
00028 C        N     - the number of units to which copies of the
00029 C                error messages are being sent.  N will be in the
00030 C                range from 1 to 5.
00031 C
00032 C***REFERENCES  R. E. Jones and D. K. Kahaner, XERROR, the SLATEC
00033 C                 Error-handling Package, SAND82-0800, Sandia
00034 C                 Laboratories, 1982.
00035 C***ROUTINES CALLED  J4SAVE
00036 C***REVISION HISTORY  (YYMMDD)
00037 C   790801  DATE WRITTEN
00038 C   861211  REVISION DATE from Version 3.2
00039 C   891214  Prologue converted to Version 4.0 format.  (BAB)
00040 C   920501  Reformatted the REFERENCES section.  (WRB)
00041 C***END PROLOGUE  XGETUA
00042       DIMENSION IUNITA(5)
00043 C***FIRST EXECUTABLE STATEMENT  XGETUA
00044       N = J4SAVE(5,0,.FALSE.)
00045       DO 30 I=1,N
00046          INDEX = I+4
00047          IF (I.EQ.1) INDEX = 3
00048          IUNITA(I) = J4SAVE(INDEX,0,.FALSE.)
00049    30 CONTINUE
00050       RETURN
00051       END
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