LAPACK  3.10.0
LAPACK: Linear Algebra PACKage
lapacke_zppcon.c
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28 *****************************************************************************
29 * Contents: Native high-level C interface to LAPACK function zppcon
30 * Author: Intel Corporation
31 *****************************************************************************/
32 
33 #include "lapacke_utils.h"
34 
35 lapack_int LAPACKE_zppcon( int matrix_layout, char uplo, lapack_int n,
36  const lapack_complex_double* ap, double anorm,
37  double* rcond )
38 {
39  lapack_int info = 0;
40  double* rwork = NULL;
41  lapack_complex_double* work = NULL;
42  if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
43  LAPACKE_xerbla( "LAPACKE_zppcon", -1 );
44  return -1;
45  }
46 #ifndef LAPACK_DISABLE_NAN_CHECK
47  if( LAPACKE_get_nancheck() ) {
48  /* Optionally check input matrices for NaNs */
49  if( LAPACKE_d_nancheck( 1, &anorm, 1 ) ) {
50  return -5;
51  }
52  if( LAPACKE_zpp_nancheck( n, ap ) ) {
53  return -4;
54  }
55  }
56 #endif
57  /* Allocate memory for working array(s) */
58  rwork = (double*)LAPACKE_malloc( sizeof(double) * MAX(1,n) );
59  if( rwork == NULL ) {
61  goto exit_level_0;
62  }
63  work = (lapack_complex_double*)
64  LAPACKE_malloc( sizeof(lapack_complex_double) * MAX(1,2*n) );
65  if( work == NULL ) {
67  goto exit_level_1;
68  }
69  /* Call middle-level interface */
70  info = LAPACKE_zppcon_work( matrix_layout, uplo, n, ap, anorm, rcond, work,
71  rwork );
72  /* Release memory and exit */
73  LAPACKE_free( work );
74 exit_level_1:
75  LAPACKE_free( rwork );
76 exit_level_0:
77  if( info == LAPACK_WORK_MEMORY_ERROR ) {
78  LAPACKE_xerbla( "LAPACKE_zppcon", info );
79  }
80  return info;
81 }
#define lapack_int
Definition: lapack.h:83
#define lapack_complex_double
Definition: lapack.h:63
#define LAPACK_WORK_MEMORY_ERROR
Definition: lapacke.h:55
#define LAPACK_COL_MAJOR
Definition: lapacke.h:53
#define LAPACKE_free(p)
Definition: lapacke.h:46
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:52
lapack_int LAPACKE_zppcon_work(int matrix_layout, char uplo, lapack_int n, const lapack_complex_double *ap, double anorm, double *rcond, lapack_complex_double *work, double *rwork)
int LAPACKE_get_nancheck(void)
#define LAPACKE_malloc(size)
Definition: lapacke.h:43
void LAPACKE_xerbla(const char *name, lapack_int info)
lapack_logical LAPACKE_d_nancheck(lapack_int n, const double *x, lapack_int incx)
lapack_logical LAPACKE_zpp_nancheck(lapack_int n, const lapack_complex_double *ap)
#define MAX(x, y)
Definition: lapacke_utils.h:46
lapack_int LAPACKE_zppcon(int matrix_layout, char uplo, lapack_int n, const lapack_complex_double *ap, double anorm, double *rcond)