LAPACK 3.12.0 LAPACK: Linear Algebra PACKage
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## ◆ zgennd()

 logical function zgennd ( integer m, integer n, complex*16, dimension( lda, * ) a, integer lda )

ZGENND

Purpose:
`    ZGENND tests that its argument has a real, non-negative diagonal.`
Parameters
 [in] M ``` M is INTEGER The number of rows in A.``` [in] N ``` N is INTEGER The number of columns in A.``` [in] A ``` A is COMPLEX*16 array, dimension (LDA, N) The matrix.``` [in] LDA ``` LDA is INTEGER Leading dimension of A.```

Definition at line 67 of file zgennd.f.

68*
69* -- LAPACK test routine --
70* -- LAPACK is a software package provided by Univ. of Tennessee, --
71* -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..--
72*
73* .. Scalar Arguments ..
74 INTEGER M, N, LDA
75* ..
76* .. Array Arguments ..
77 COMPLEX*16 A( LDA, * )
78* ..
79*
80* =====================================================================
81*
82* .. Parameters ..
83 REAL ZERO
84 parameter( zero = 0.0e0 )
85* ..
86* .. Local Scalars ..
87 INTEGER I, K
88 COMPLEX*16 AII
89* ..
90* .. Intrinsics ..
91 INTRINSIC min, dble, dimag
92* ..
93* .. Executable Statements ..
94 k = min( m, n )
95 DO i = 1, k
96 aii = a( i, i )
97 IF( dble( aii ).LT.zero.OR.dimag( aii ).NE.zero ) THEN
98 zgennd = .false.
99 RETURN
100 END IF
101 END DO
102 zgennd = .true.
103 RETURN
logical function zgennd(m, n, a, lda)
ZGENND
Definition zgennd.f:68
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