LAPACK 3.11.0
LAPACK: Linear Algebra PACKage
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◆ LAPACKE_sgeqpf()

lapack_int LAPACKE_sgeqpf ( int  matrix_layout,
lapack_int  m,
lapack_int  n,
float *  a,
lapack_int  lda,
lapack_int jpvt,
float *  tau 
)

Definition at line 35 of file lapacke_sgeqpf.c.

38{
39 lapack_int info = 0;
40 float* work = NULL;
41 if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
42 LAPACKE_xerbla( "LAPACKE_sgeqpf", -1 );
43 return -1;
44 }
45#ifndef LAPACK_DISABLE_NAN_CHECK
46 if( LAPACKE_get_nancheck() ) {
47 /* Optionally check input matrices for NaNs */
48 if( LAPACKE_sge_nancheck( matrix_layout, m, n, a, lda ) ) {
49 return -4;
50 }
51 }
52#endif
53 /* Allocate memory for working array(s) */
54 work = (float*)LAPACKE_malloc( sizeof(float) * MAX(1,3*n) );
55 if( work == NULL ) {
57 goto exit_level_0;
58 }
59 /* Call middle-level interface */
60 info = LAPACKE_sgeqpf_work( matrix_layout, m, n, a, lda, jpvt, tau, work );
61 /* Release memory and exit */
62 LAPACKE_free( work );
63exit_level_0:
64 if( info == LAPACK_WORK_MEMORY_ERROR ) {
65 LAPACKE_xerbla( "LAPACKE_sgeqpf", info );
66 }
67 return info;
68}
#define lapack_int
Definition: lapack.h:87
lapack_int LAPACKE_sgeqpf_work(int matrix_layout, lapack_int m, lapack_int n, float *a, lapack_int lda, lapack_int *jpvt, float *tau, float *work)
#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)
#define LAPACKE_malloc(size)
Definition: lapacke.h:43
void LAPACKE_xerbla(const char *name, lapack_int info)
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:46
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