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FUNCTION J4SAVE (IWHICH, IVALUE, ISET)
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C***BEGIN PROLOGUE J4SAVE
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C***PURPOSE Save or recall global variables needed by error
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C***LIBRARY SLATEC (XERROR)
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C***TYPE INTEGER (J4SAVE-I)
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C***KEYWORDS ERROR MESSAGES, ERROR NUMBER, RECALL, SAVE, XERROR
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C***AUTHOR Jones, R. E., (SNLA)
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C J4SAVE saves and recalls several global variables needed
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C by the library error handling routines.
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C Description of Parameters
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C IWHICH - Index of item desired.
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C = 1 Refers to current error number.
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C = 2 Refers to current error control flag.
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C = 3 Refers to current unit number to which error
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C messages are to be sent. (0 means use standard.)
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C = 4 Refers to the maximum number of times any
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C message is to be printed (as set by XERMAX).
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C = 5 Refers to the total number of units to which
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C each error message is to be written.
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C = 6 Refers to the 2nd unit for error messages
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C = 7 Refers to the 3rd unit for error messages
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C = 8 Refers to the 4th unit for error messages
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C = 9 Refers to the 5th unit for error messages
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C IVALUE - The value to be set for the IWHICH-th parameter,
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C ISET - If ISET=.TRUE., the IWHICH-th parameter will BE
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C given the value, IVALUE. If ISET=.FALSE., the
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C IWHICH-th parameter will be unchanged, and IVALUE
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C is a dummy parameter.
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C The (old) value of the IWHICH-th parameter will be returned
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C in the function value, J4SAVE.
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C***REFERENCES R. E. Jones and D. K. Kahaner, XERROR, the SLATEC
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C Error-handling Package, SAND82-0800, Sandia
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C***ROUTINES CALLED (NONE)
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C***REVISION HISTORY (YYMMDD)
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C 891214 Prologue converted to Version 4.0 format. (BAB)
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C 900205 Minor modifications to prologue. (WRB)
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C 900402 Added TYPE section. (WRB)
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C 910411 Added KEYWORDS section. (WRB)
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C 920501 Reformatted the REFERENCES section. (WRB)
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C***END PROLOGUE J4SAVE
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DATA IPARAM(1),IPARAM(2),IPARAM(3),IPARAM(4)/0,2,0,10/
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DATA IPARAM(6),IPARAM(7),IPARAM(8),IPARAM(9)/0,0,0,0/
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C***FIRST EXECUTABLE STATEMENT J4SAVE
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J4SAVE = IPARAM(IWHICH)
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IF (ISET) IPARAM(IWHICH) = IVALUE