DQCK(3)

SYNOPSIS
SUBROUTINE DQCK (LUN, KPRINT, NERR)

NAME
dqck - Quick check for DPOFS AND DNBFS.

LIBRARY
SLATEC

KEYWORDS
QUICK CHECK

AUTHOR
Voorhees, E. A., (LANL)

DESCRIPTION
QUICK CHECK SUBROUTINE DQCK TESTS THE EXECUTION OF THE SLATEC SUBROUTINES DPOFS AND DNBFS. A TITLE LINE AND A SUMMARY LINE ARE ALWAYS OUTPUTTED. THE SUMMARY LINE GIVES A COUNT OF THE NUMBER OF PROBLEMS ENCOUNTERED IN THE TEST IF ANY EXIST. DQCK CHECKS COMPUTED VS. EXACT SOLUTIONS TO AGREE TO WITHIN 0.8 TIMES THE WORD LENGTH OF THE COMPUTER (1.6 IF DOUBLE PRECISION) FOR CASE 1. DQCK ALSO TESTS ERROR HANDLING BY THE SUBROUTINE (CALLS TO XERMSG (DQCK SETS IFLAG/KONTRL TO 0)) USING A SINGULAR MATRIX FOR CASE 2. EACH EXECUTION PROBLEM DETECTED BY DQCK RESULTS IN AN ADDITIONAL EXPLANATORY LINE OF OUTPUT. DQCK REQUIRES NO INPUT ARGUMENTS. ON RETURN, NERR (INTEGER TYPE) CONTAINS THE TOTAL COUNT OF ALL PROBLEMS DETECTED BY DQCK.

ROUTINES CALLED
D1MACH, DNBFS, DPOFS

REVISION HISTORY (YYMMDD)
801002 DATE WRITTEN
890911 Removed unnecessary intrinsics. (WRB)
890911 REVISION DATE from Version 3.2
891214 Prologue converted to Version 4.0 format. (BAB)
901009 Restructured using IF-THEN-ELSE-ENDIF, cleaned up FORMATs, including removing an illegal character from column 1, and editorial changes. (RWC)