LAPACK  3.10.1
LAPACK: Linear Algebra PACKage

◆ LAPACKE_cgesvx()

lapack_int LAPACKE_cgesvx ( int  matrix_layout,
char  fact,
char  trans,
lapack_int  n,
lapack_int  nrhs,
lapack_complex_float a,
lapack_int  lda,
lapack_complex_float af,
lapack_int  ldaf,
lapack_int ipiv,
char *  equed,
float *  r,
float *  c,
lapack_complex_float b,
lapack_int  ldb,
lapack_complex_float x,
lapack_int  ldx,
float *  rcond,
float *  ferr,
float *  berr,
float *  rpivot 
)

Definition at line 35 of file lapacke_cgesvx.c.

44 {
45  lapack_int info = 0;
46  float* rwork = NULL;
47  lapack_complex_float* work = NULL;
48  if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
49  LAPACKE_xerbla( "LAPACKE_cgesvx", -1 );
50  return -1;
51  }
52 #ifndef LAPACK_DISABLE_NAN_CHECK
53  if( LAPACKE_get_nancheck() ) {
54  /* Optionally check input matrices for NaNs */
55  if( LAPACKE_cge_nancheck( matrix_layout, n, n, a, lda ) ) {
56  return -6;
57  }
58  if( LAPACKE_lsame( fact, 'f' ) ) {
59  if( LAPACKE_cge_nancheck( matrix_layout, n, n, af, ldaf ) ) {
60  return -8;
61  }
62  }
63  if( LAPACKE_cge_nancheck( matrix_layout, n, nrhs, b, ldb ) ) {
64  return -14;
65  }
66  if( LAPACKE_lsame( fact, 'f' ) && ( LAPACKE_lsame( *equed, 'b' ) ||
67  LAPACKE_lsame( *equed, 'c' ) ) ) {
68  if( LAPACKE_s_nancheck( n, c, 1 ) ) {
69  return -13;
70  }
71  }
72  if( LAPACKE_lsame( fact, 'f' ) && ( LAPACKE_lsame( *equed, 'b' ) ||
73  LAPACKE_lsame( *equed, 'r' ) ) ) {
74  if( LAPACKE_s_nancheck( n, r, 1 ) ) {
75  return -12;
76  }
77  }
78  }
79 #endif
80  /* Allocate memory for working array(s) */
81  rwork = (float*)LAPACKE_malloc( sizeof(float) * MAX(1,2*n) );
82  if( rwork == NULL ) {
84  goto exit_level_0;
85  }
86  work = (lapack_complex_float*)
87  LAPACKE_malloc( sizeof(lapack_complex_float) * MAX(1,2*n) );
88  if( work == NULL ) {
90  goto exit_level_1;
91  }
92  /* Call middle-level interface */
93  info = LAPACKE_cgesvx_work( matrix_layout, fact, trans, n, nrhs, a, lda, af,
94  ldaf, ipiv, equed, r, c, b, ldb, x, ldx, rcond,
95  ferr, berr, work, rwork );
96  /* Backup significant data from working array(s) */
97  *rpivot = rwork[0];
98  /* Release memory and exit */
99  LAPACKE_free( work );
100 exit_level_1:
101  LAPACKE_free( rwork );
102 exit_level_0:
103  if( info == LAPACK_WORK_MEMORY_ERROR ) {
104  LAPACKE_xerbla( "LAPACKE_cgesvx", info );
105  }
106  return info;
107 }
#define lapack_int
Definition: lapack.h:83
#define lapack_complex_float
Definition: lapack.h:45
#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
int LAPACKE_get_nancheck(void)
lapack_int LAPACKE_cgesvx_work(int matrix_layout, char fact, char trans, lapack_int n, lapack_int nrhs, lapack_complex_float *a, lapack_int lda, lapack_complex_float *af, lapack_int ldaf, lapack_int *ipiv, char *equed, float *r, float *c, lapack_complex_float *b, lapack_int ldb, lapack_complex_float *x, lapack_int ldx, float *rcond, float *ferr, float *berr, lapack_complex_float *work, float *rwork)
#define LAPACKE_malloc(size)
Definition: lapacke.h:43
lapack_logical LAPACKE_lsame(char ca, char cb)
Definition: lapacke_lsame.c:35
void LAPACKE_xerbla(const char *name, lapack_int info)
lapack_logical LAPACKE_s_nancheck(lapack_int n, const float *x, lapack_int incx)
#define MAX(x, y)
Definition: lapacke_utils.h:46
lapack_logical LAPACKE_cge_nancheck(int matrix_layout, lapack_int m, lapack_int n, const lapack_complex_float *a, lapack_int lda)
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