1*> \brief \b DERRQP 2* 3* =========== DOCUMENTATION =========== 4* 5* Online html documentation available at 6* http://www.netlib.org/lapack/explore-html/ 7* 8* Definition: 9* =========== 10* 11* SUBROUTINE DERRQP( PATH, NUNIT ) 12* 13* .. Scalar Arguments .. 14* CHARACTER*3 PATH 15* INTEGER NUNIT 16* .. 17* 18* 19*> \par Purpose: 20* ============= 21*> 22*> \verbatim 23*> 24*> DERRQP tests the error exits for DGEQP3. 25*> \endverbatim 26* 27* Arguments: 28* ========== 29* 30*> \param[in] PATH 31*> \verbatim 32*> PATH is CHARACTER*3 33*> The LAPACK path name for the routines to be tested. 34*> \endverbatim 35*> 36*> \param[in] NUNIT 37*> \verbatim 38*> NUNIT is INTEGER 39*> The unit number for output. 40*> \endverbatim 41* 42* Authors: 43* ======== 44* 45*> \author Univ. of Tennessee 46*> \author Univ. of California Berkeley 47*> \author Univ. of Colorado Denver 48*> \author NAG Ltd. 49* 50*> \date December 2016 51* 52*> \ingroup double_lin 53* 54* ===================================================================== 55 SUBROUTINE DERRQP( PATH, NUNIT ) 56* 57* -- LAPACK test routine (version 3.7.0) -- 58* -- LAPACK is a software package provided by Univ. of Tennessee, -- 59* -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..-- 60* December 2016 61* 62* .. Scalar Arguments .. 63 CHARACTER*3 PATH 64 INTEGER NUNIT 65* .. 66* 67* ===================================================================== 68* 69* .. Parameters .. 70 INTEGER NMAX 71 PARAMETER ( NMAX = 3 ) 72* .. 73* .. Local Scalars .. 74 CHARACTER*2 C2 75 INTEGER INFO, LW 76* .. 77* .. Local Arrays .. 78 INTEGER IP( NMAX ) 79 DOUBLE PRECISION A( NMAX, NMAX ), TAU( NMAX ), W( 3*NMAX+1 ) 80* .. 81* .. External Functions .. 82 LOGICAL LSAMEN 83 EXTERNAL LSAMEN 84* .. 85* .. External Subroutines .. 86 EXTERNAL ALAESM, CHKXER, DGEQP3 87* .. 88* .. Scalars in Common .. 89 LOGICAL LERR, OK 90 CHARACTER*32 SRNAMT 91 INTEGER INFOT, NOUT 92* .. 93* .. Common blocks .. 94 COMMON / INFOC / INFOT, NOUT, OK, LERR 95 COMMON / SRNAMC / SRNAMT 96* .. 97* .. Executable Statements .. 98* 99 NOUT = NUNIT 100 WRITE( NOUT, FMT = * ) 101 C2 = PATH( 2: 3 ) 102 LW = 3*NMAX + 1 103 A( 1, 1 ) = 1.0D+0 104 A( 1, 2 ) = 2.0D+0 105 A( 2, 2 ) = 3.0D+0 106 A( 2, 1 ) = 4.0D+0 107 OK = .TRUE. 108* 109 IF( LSAMEN( 2, C2, 'QP' ) ) THEN 110* 111* Test error exits for QR factorization with pivoting 112* 113* DGEQP3 114* 115 SRNAMT = 'DGEQP3' 116 INFOT = 1 117 CALL DGEQP3( -1, 0, A, 1, IP, TAU, W, LW, INFO ) 118 CALL CHKXER( 'DGEQP3', INFOT, NOUT, LERR, OK ) 119 INFOT = 2 120 CALL DGEQP3( 1, -1, A, 1, IP, TAU, W, LW, INFO ) 121 CALL CHKXER( 'DGEQP3', INFOT, NOUT, LERR, OK ) 122 INFOT = 4 123 CALL DGEQP3( 2, 3, A, 1, IP, TAU, W, LW, INFO ) 124 CALL CHKXER( 'DGEQP3', INFOT, NOUT, LERR, OK ) 125 INFOT = 8 126 CALL DGEQP3( 2, 2, A, 2, IP, TAU, W, LW-10, INFO ) 127 CALL CHKXER( 'DGEQP3', INFOT, NOUT, LERR, OK ) 128 END IF 129* 130* Print a summary line. 131* 132 CALL ALAESM( PATH, OK, NOUT ) 133* 134 RETURN 135* 136* End of DERRQP 137* 138 END 139