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SUBROUTINE DERRLS( PATH, NUNIT )
* * -- LAPACK test routine (version 3.1) -- * Univ. of Tennessee, Univ. of California Berkeley and NAG Ltd.. * November 2006 * * .. Scalar Arguments .. CHARACTER*3 PATH INTEGER NUNIT * .. * * Purpose * ======= * * DERRLS tests the error exits for the DOUBLE PRECISION least squares * driver routines (DGELS, SGELSS, SGELSX, SGELSY, SGELSD). * * Arguments * ========= * * PATH (input) CHARACTER*3 * The LAPACK path name for the routines to be tested. * * NUNIT (input) INTEGER * The unit number for output. * * ===================================================================== * * .. Parameters .. INTEGER NMAX PARAMETER ( NMAX = 2 ) * .. * .. Local Scalars .. CHARACTER*2 C2 INTEGER INFO, IRNK DOUBLE PRECISION RCOND * .. * .. Local Arrays .. INTEGER IP( NMAX ) DOUBLE PRECISION A( NMAX, NMAX ), B( NMAX, NMAX ), S( NMAX ), $ W( NMAX ) * .. * .. External Functions .. LOGICAL LSAMEN EXTERNAL LSAMEN * .. * .. External Subroutines .. EXTERNAL ALAESM, CHKXER, DGELS, DGELSD, DGELSS, DGELSX, $ DGELSY * .. * .. Scalars in Common .. LOGICAL LERR, OK CHARACTER*32 SRNAMT INTEGER INFOT, NOUT * .. * .. Common blocks .. COMMON / INFOC / INFOT, NOUT, OK, LERR COMMON / SRNAMC / SRNAMT * .. * .. Executable Statements .. * NOUT = NUNIT WRITE( NOUT, FMT = * ) C2 = PATH( 2: 3 ) A( 1, 1 ) = 1.0D+0 A( 1, 2 ) = 2.0D+0 A( 2, 2 ) = 3.0D+0 A( 2, 1 ) = 4.0D+0 OK = .TRUE. * IF( LSAMEN( 2, C2, 'LS' ) ) THEN * * Test error exits for the least squares driver routines. * * DGELS * SRNAMT = 'DGELS ' INFOT = 1 CALL DGELS( '/', 0, 0, 0, A, 1, B, 1, W, 1, INFO ) CALL CHKXER( 'DGELS ', INFOT, NOUT, LERR, OK ) INFOT = 2 CALL DGELS( 'N', -1, 0, 0, A, 1, B, 1, W, 1, INFO ) CALL CHKXER( 'DGELS ', INFOT, NOUT, LERR, OK ) INFOT = 3 CALL DGELS( 'N', 0, -1, 0, A, 1, B, 1, W, 1, INFO ) CALL CHKXER( 'DGELS ', INFOT, NOUT, LERR, OK ) INFOT = 4 CALL DGELS( 'N', 0, 0, -1, A, 1, B, 1, W, 1, INFO ) CALL CHKXER( 'DGELS ', INFOT, NOUT, LERR, OK ) INFOT = 6 CALL DGELS( 'N', 2, 0, 0, A, 1, B, 2, W, 2, INFO ) CALL CHKXER( 'DGELS ', INFOT, NOUT, LERR, OK ) INFOT = 8 CALL DGELS( 'N', 2, 0, 0, A, 2, B, 1, W, 2, INFO ) CALL CHKXER( 'DGELS ', INFOT, NOUT, LERR, OK ) INFOT = 10 CALL DGELS( 'N', 1, 1, 0, A, 1, B, 1, W, 1, INFO ) CALL CHKXER( 'DGELS ', INFOT, NOUT, LERR, OK ) * * DGELSS * SRNAMT = 'DGELSS' INFOT = 1 CALL DGELSS( -1, 0, 0, A, 1, B, 1, S, RCOND, IRNK, W, 1, INFO ) CALL CHKXER( 'DGELSS', INFOT, NOUT, LERR, OK ) INFOT = 2 CALL DGELSS( 0, -1, 0, A, 1, B, 1, S, RCOND, IRNK, W, 1, INFO ) CALL CHKXER( 'DGELSS', INFOT, NOUT, LERR, OK ) INFOT = 3 CALL DGELSS( 0, 0, -1, A, 1, B, 1, S, RCOND, IRNK, W, 1, INFO ) CALL CHKXER( 'DGELSS', INFOT, NOUT, LERR, OK ) INFOT = 5 CALL DGELSS( 2, 0, 0, A, 1, B, 2, S, RCOND, IRNK, W, 2, INFO ) CALL CHKXER( 'DGELSS', INFOT, NOUT, LERR, OK ) INFOT = 7 CALL DGELSS( 2, 0, 0, A, 2, B, 1, S, RCOND, IRNK, W, 2, INFO ) CALL CHKXER( 'DGELSS', INFOT, NOUT, LERR, OK ) * * DGELSX * SRNAMT = 'DGELSX' INFOT = 1 CALL DGELSX( -1, 0, 0, A, 1, B, 1, IP, RCOND, IRNK, W, INFO ) CALL CHKXER( 'DGELSX', INFOT, NOUT, LERR, OK ) INFOT = 2 CALL DGELSX( 0, -1, 0, A, 1, B, 1, IP, RCOND, IRNK, W, INFO ) CALL CHKXER( 'DGELSX', INFOT, NOUT, LERR, OK ) INFOT = 3 CALL DGELSX( 0, 0, -1, A, 1, B, 1, IP, RCOND, IRNK, W, INFO ) CALL CHKXER( 'DGELSX', INFOT, NOUT, LERR, OK ) INFOT = 5 CALL DGELSX( 2, 0, 0, A, 1, B, 2, IP, RCOND, IRNK, W, INFO ) CALL CHKXER( 'DGELSX', INFOT, NOUT, LERR, OK ) INFOT = 7 CALL DGELSX( 2, 0, 0, A, 2, B, 1, IP, RCOND, IRNK, W, INFO ) CALL CHKXER( 'DGELSX', INFOT, NOUT, LERR, OK ) * * DGELSY * SRNAMT = 'DGELSY' INFOT = 1 CALL DGELSY( -1, 0, 0, A, 1, B, 1, IP, RCOND, IRNK, W, 10, $ INFO ) CALL CHKXER( 'DGELSY', INFOT, NOUT, LERR, OK ) INFOT = 2 CALL DGELSY( 0, -1, 0, A, 1, B, 1, IP, RCOND, IRNK, W, 10, $ INFO ) CALL CHKXER( 'DGELSY', INFOT, NOUT, LERR, OK ) INFOT = 3 CALL DGELSY( 0, 0, -1, A, 1, B, 1, IP, RCOND, IRNK, W, 10, $ INFO ) CALL CHKXER( 'DGELSY', INFOT, NOUT, LERR, OK ) INFOT = 5 CALL DGELSY( 2, 0, 0, A, 1, B, 2, IP, RCOND, IRNK, W, 10, $ INFO ) CALL CHKXER( 'DGELSY', INFOT, NOUT, LERR, OK ) INFOT = 7 CALL DGELSY( 2, 0, 0, A, 2, B, 1, IP, RCOND, IRNK, W, 10, $ INFO ) CALL CHKXER( 'DGELSY', INFOT, NOUT, LERR, OK ) INFOT = 12 CALL DGELSY( 2, 2, 1, A, 2, B, 2, IP, RCOND, IRNK, W, 1, INFO ) CALL CHKXER( 'DGELSY', INFOT, NOUT, LERR, OK ) * * DGELSD * SRNAMT = 'DGELSD' INFOT = 1 CALL DGELSD( -1, 0, 0, A, 1, B, 1, S, RCOND, IRNK, W, 10, IP, $ INFO ) CALL CHKXER( 'DGELSD', INFOT, NOUT, LERR, OK ) INFOT = 2 CALL DGELSD( 0, -1, 0, A, 1, B, 1, S, RCOND, IRNK, W, 10, IP, $ INFO ) CALL CHKXER( 'DGELSD', INFOT, NOUT, LERR, OK ) INFOT = 3 CALL DGELSD( 0, 0, -1, A, 1, B, 1, S, RCOND, IRNK, W, 10, IP, $ INFO ) CALL CHKXER( 'DGELSD', INFOT, NOUT, LERR, OK ) INFOT = 5 CALL DGELSD( 2, 0, 0, A, 1, B, 2, S, RCOND, IRNK, W, 10, IP, $ INFO ) CALL CHKXER( 'DGELSD', INFOT, NOUT, LERR, OK ) INFOT = 7 CALL DGELSD( 2, 0, 0, A, 2, B, 1, S, RCOND, IRNK, W, 10, IP, $ INFO ) CALL CHKXER( 'DGELSD', INFOT, NOUT, LERR, OK ) INFOT = 12 CALL DGELSD( 2, 2, 1, A, 2, B, 2, S, RCOND, IRNK, W, 1, IP, $ INFO ) CALL CHKXER( 'DGELSD', INFOT, NOUT, LERR, OK ) END IF * * Print a summary line. * CALL ALAESM( PATH, OK, NOUT ) * RETURN * * End of DERRLS * END |