LAPACK  3.7.1
LAPACK: Linear Algebra PACKage

◆ LAPACKE_ssytrs2()

lapack_int LAPACKE_ssytrs2 ( int  matrix_layout,
char  uplo,
lapack_int  n,
lapack_int  nrhs,
const float *  a,
lapack_int  lda,
const lapack_int ipiv,
float *  b,
lapack_int  ldb 
)

Definition at line 36 of file lapacke_ssytrs2.c.

39 {
40  lapack_int info = 0;
41  float* work = NULL;
42  if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
43  LAPACKE_xerbla( "LAPACKE_ssytrs2", -1 );
44  return -1;
45  }
46 #ifndef LAPACK_DISABLE_NAN_CHECK
47  /* Optionally check input matrices for NaNs */
48  if( LAPACKE_ssy_nancheck( matrix_layout, uplo, n, a, lda ) ) {
49  return -5;
50  }
51  if( LAPACKE_sge_nancheck( matrix_layout, n, nrhs, b, ldb ) ) {
52  return -8;
53  }
54 #endif
55  /* Allocate memory for working array(s) */
56  work = (float*)LAPACKE_malloc( sizeof(float) * MAX(1,n) );
57  if( work == NULL ) {
59  goto exit_level_0;
60  }
61  /* Call middle-level interface */
62  info = LAPACKE_ssytrs2_work( matrix_layout, uplo, n, nrhs, a, lda, ipiv, b,
63  ldb, work );
64  /* Release memory and exit */
65  LAPACKE_free( work );
66 exit_level_0:
67  if( info == LAPACK_WORK_MEMORY_ERROR ) {
68  LAPACKE_xerbla( "LAPACKE_ssytrs2", info );
69  }
70  return info;
71 }
lapack_logical LAPACKE_ssy_nancheck(int matrix_layout, char uplo, lapack_int n, const float *a, lapack_int lda)
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:119
lapack_int LAPACKE_ssytrs2_work(int matrix_layout, char uplo, lapack_int n, lapack_int nrhs, const float *a, lapack_int lda, const lapack_int *ipiv, float *b, lapack_int ldb, float *work)
#define LAPACK_WORK_MEMORY_ERROR
Definition: lapacke.h:122
#define LAPACKE_free(p)
Definition: lapacke.h:113
lapack_logical LAPACKE_sge_nancheck(int matrix_layout, lapack_int m, lapack_int n, const float *a, lapack_int lda)
#define MAX(x, y)
Definition: lapacke_utils.h:47
#define LAPACKE_malloc(size)
Definition: lapacke.h:110
#define LAPACK_COL_MAJOR
Definition: lapacke.h:120
void LAPACKE_xerbla(const char *name, lapack_int info)
#define lapack_int
Definition: lapacke.h:47
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