LAPACK  3.6.1
LAPACK: Linear Algebra PACKage
lapacke_zhs_nancheck.c
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28 ******************************************************************************
29 * Contents: Native C interface to LAPACK utility function
30 * Author: Intel Corporation
31 * Created in February, 2010
32 *****************************************************************************/
33 #include "lapacke_utils.h"
34 
35 /* Check a matrix for NaN entries. */
36 
38  const lapack_complex_double *a,
39  lapack_int lda )
40 {
41  lapack_logical subdiag_nans;
42 
43  if( a == NULL ) return (lapack_logical) 0;
44 
45  /* Check subdiagonal first */
46  if( matrix_layout == LAPACK_COL_MAJOR ) {
47  subdiag_nans = LAPACKE_z_nancheck( n-1, &a[1], lda+1 );
48  } else if ( matrix_layout == LAPACK_ROW_MAJOR ) {
49  subdiag_nans = LAPACKE_z_nancheck( n-1, &a[lda], lda+1 );
50  } else {
51  return (lapack_logical) 0;
52  }
53 
54  /* Check upper triangular if subdiagonal has no NaNs. */
55  return subdiag_nans || LAPACKE_ztr_nancheck( matrix_layout, 'u', 'n',
56  n, a, lda);
57 }
#define lapack_logical
Definition: lapacke.h:51
lapack_logical LAPACKE_z_nancheck(lapack_int n, const lapack_complex_double *x, lapack_int incx)
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:119
#define lapack_complex_double
Definition: lapacke.h:90
lapack_logical LAPACKE_ztr_nancheck(int matrix_layout, char uplo, char diag, lapack_int n, const lapack_complex_double *a, lapack_int lda)
#define LAPACK_COL_MAJOR
Definition: lapacke.h:120
#define lapack_int
Definition: lapacke.h:47
lapack_logical LAPACKE_zhs_nancheck(int matrix_layout, lapack_int n, const lapack_complex_double *a, lapack_int lda)