LAPACK  3.7.1
LAPACK: Linear Algebra PACKage

◆ LAPACKE_sgeqrt()

lapack_int LAPACKE_sgeqrt ( int  matrix_layout,
lapack_int  m,
lapack_int  n,
lapack_int  nb,
float *  a,
lapack_int  lda,
float *  t,
lapack_int  ldt 
)

Definition at line 36 of file lapacke_sgeqrt.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_sgeqrt", -1 );
44  return -1;
45  }
46 #ifndef LAPACK_DISABLE_NAN_CHECK
47  /* Optionally check input matrices for NaNs */
48  if( LAPACKE_sge_nancheck( matrix_layout, m, n, a, lda ) ) {
49  return -5;
50  }
51 #endif
52  /* Allocate memory for working array(s) */
53  work = (float*)LAPACKE_malloc( sizeof(float) * MAX(1,nb) * MAX(1,n) );
54  if( work == NULL ) {
56  goto exit_level_0;
57  }
58  /* Call middle-level interface */
59  info = LAPACKE_sgeqrt_work( matrix_layout, m, n, nb, a, lda, t, ldt, work );
60  /* Release memory and exit */
61  LAPACKE_free( work );
62 exit_level_0:
63  if( info == LAPACK_WORK_MEMORY_ERROR ) {
64  LAPACKE_xerbla( "LAPACKE_sgeqrt", info );
65  }
66  return info;
67 }
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:119
#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
lapack_int LAPACKE_sgeqrt_work(int matrix_layout, lapack_int m, lapack_int n, lapack_int nb, float *a, lapack_int lda, float *t, lapack_int ldt, float *work)
#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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