LAPACK  3.8.0
LAPACK: Linear Algebra PACKage

◆ zerrtz()

subroutine zerrtz ( character*3  PATH,
integer  NUNIT 
)

ZERRTZ

Purpose:
 ZERRTZ tests the error exits for ZTZRZF.
Parameters
[in]PATH
          PATH is CHARACTER*3
          The LAPACK path name for the routines to be tested.
[in]NUNIT
          NUNIT is INTEGER
          The unit number for output.
Author
Univ. of Tennessee
Univ. of California Berkeley
Univ. of Colorado Denver
NAG Ltd.
Date
December 2016

Definition at line 56 of file zerrtz.f.

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 = 2 )
72 * ..
73 * .. Local Scalars ..
74  CHARACTER*2 c2
75  INTEGER info
76 * ..
77 * .. Local Arrays ..
78  COMPLEX*16 a( nmax, nmax ), tau( nmax ), w( nmax )
79 * ..
80 * .. External Functions ..
81  LOGICAL lsamen
82  EXTERNAL lsamen
83 * ..
84 * .. External Subroutines ..
85  EXTERNAL alaesm, chkxer, ztzrzf
86 * ..
87 * .. Scalars in Common ..
88  LOGICAL lerr, ok
89  CHARACTER*32 srnamt
90  INTEGER infot, nout
91 * ..
92 * .. Common blocks ..
93  COMMON / infoc / infot, nout, ok, lerr
94  COMMON / srnamc / srnamt
95 * ..
96 * .. Intrinsic Functions ..
97  INTRINSIC dcmplx
98 * ..
99 * .. Executable Statements ..
100 *
101  nout = nunit
102  c2 = path( 2: 3 )
103  a( 1, 1 ) = dcmplx( 1.d+0, -1.d+0 )
104  a( 1, 2 ) = dcmplx( 2.d+0, -2.d+0 )
105  a( 2, 2 ) = dcmplx( 3.d+0, -3.d+0 )
106  a( 2, 1 ) = dcmplx( 4.d+0, -4.d+0 )
107  w( 1 ) = dcmplx( 0.d+0, 0.d+0 )
108  w( 2 ) = dcmplx( 0.d+0, 0.d+0 )
109  ok = .true.
110 *
111 * Test error exits for the trapezoidal routines.
112  WRITE( nout, fmt = * )
113  IF( lsamen( 2, c2, 'TZ' ) ) THEN
114 *
115 *
116 * ZTZRZF
117 *
118  srnamt = 'ZTZRZF'
119  infot = 1
120  CALL ztzrzf( -1, 0, a, 1, tau, w, 1, info )
121  CALL chkxer( 'ZTZRZF', infot, nout, lerr, ok )
122  infot = 2
123  CALL ztzrzf( 1, 0, a, 1, tau, w, 1, info )
124  CALL chkxer( 'ZTZRZF', infot, nout, lerr, ok )
125  infot = 4
126  CALL ztzrzf( 2, 2, a, 1, tau, w, 1, info )
127  CALL chkxer( 'ZTZRZF', infot, nout, lerr, ok )
128  infot = 7
129  CALL ztzrzf( 2, 2, a, 2, tau, w, 0, info )
130  CALL chkxer( 'ZTZRZF', infot, nout, lerr, ok )
131  infot = 7
132  CALL ztzrzf( 2, 3, a, 2, tau, w, 1, info )
133  CALL chkxer( 'ZTZRZF', infot, nout, lerr, ok )
134  END IF
135 *
136 * Print a summary line.
137 *
138  CALL alaesm( path, ok, nout )
139 *
140  RETURN
141 *
142 * End of ZERRTZ
143 *
subroutine alaesm(PATH, OK, NOUT)
ALAESM
Definition: alaesm.f:65
subroutine chkxer(SRNAMT, INFOT, NOUT, LERR, OK)
Definition: cblat2.f:3199
subroutine ztzrzf(M, N, A, LDA, TAU, WORK, LWORK, INFO)
ZTZRZF
Definition: ztzrzf.f:153
logical function lsamen(N, CA, CB)
LSAMEN
Definition: lsamen.f:76
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