1*> \brief \b ZERRTZ 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 ZERRTZ( 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*> ZERRTZ tests the error exits for ZTZRZF. 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*> \ingroup complex16_lin 51* 52* ===================================================================== 53 SUBROUTINE ZERRTZ( PATH, NUNIT ) 54* 55* -- LAPACK test routine -- 56* -- LAPACK is a software package provided by Univ. of Tennessee, -- 57* -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..-- 58* 59* .. Scalar Arguments .. 60 CHARACTER*3 PATH 61 INTEGER NUNIT 62* .. 63* 64* ===================================================================== 65* 66* .. Parameters .. 67 INTEGER NMAX 68 PARAMETER ( NMAX = 2 ) 69* .. 70* .. Local Scalars .. 71 CHARACTER*2 C2 72 INTEGER INFO 73* .. 74* .. Local Arrays .. 75 COMPLEX*16 A( NMAX, NMAX ), TAU( NMAX ), W( NMAX ) 76* .. 77* .. External Functions .. 78 LOGICAL LSAMEN 79 EXTERNAL LSAMEN 80* .. 81* .. External Subroutines .. 82 EXTERNAL ALAESM, CHKXER, ZTZRZF 83* .. 84* .. Scalars in Common .. 85 LOGICAL LERR, OK 86 CHARACTER*32 SRNAMT 87 INTEGER INFOT, NOUT 88* .. 89* .. Common blocks .. 90 COMMON / INFOC / INFOT, NOUT, OK, LERR 91 COMMON / SRNAMC / SRNAMT 92* .. 93* .. Intrinsic Functions .. 94 INTRINSIC DCMPLX 95* .. 96* .. Executable Statements .. 97* 98 NOUT = NUNIT 99 C2 = PATH( 2: 3 ) 100 A( 1, 1 ) = DCMPLX( 1.D+0, -1.D+0 ) 101 A( 1, 2 ) = DCMPLX( 2.D+0, -2.D+0 ) 102 A( 2, 2 ) = DCMPLX( 3.D+0, -3.D+0 ) 103 A( 2, 1 ) = DCMPLX( 4.D+0, -4.D+0 ) 104 W( 1 ) = DCMPLX( 0.D+0, 0.D+0 ) 105 W( 2 ) = DCMPLX( 0.D+0, 0.D+0 ) 106 OK = .TRUE. 107* 108* Test error exits for the trapezoidal routines. 109 WRITE( NOUT, FMT = * ) 110 IF( LSAMEN( 2, C2, 'TZ' ) ) THEN 111* 112* 113* ZTZRZF 114* 115 SRNAMT = 'ZTZRZF' 116 INFOT = 1 117 CALL ZTZRZF( -1, 0, A, 1, TAU, W, 1, INFO ) 118 CALL CHKXER( 'ZTZRZF', INFOT, NOUT, LERR, OK ) 119 INFOT = 2 120 CALL ZTZRZF( 1, 0, A, 1, TAU, W, 1, INFO ) 121 CALL CHKXER( 'ZTZRZF', INFOT, NOUT, LERR, OK ) 122 INFOT = 4 123 CALL ZTZRZF( 2, 2, A, 1, TAU, W, 1, INFO ) 124 CALL CHKXER( 'ZTZRZF', INFOT, NOUT, LERR, OK ) 125 INFOT = 7 126 CALL ZTZRZF( 2, 2, A, 2, TAU, W, 0, INFO ) 127 CALL CHKXER( 'ZTZRZF', INFOT, NOUT, LERR, OK ) 128 INFOT = 7 129 CALL ZTZRZF( 2, 3, A, 2, TAU, W, 1, INFO ) 130 CALL CHKXER( 'ZTZRZF', INFOT, NOUT, LERR, OK ) 131 END IF 132* 133* Print a summary line. 134* 135 CALL ALAESM( PATH, OK, NOUT ) 136* 137 RETURN 138* 139* End of ZERRTZ 140* 141 END 142