LAPACK  3.5.0
LAPACK: Linear Algebra PACKage
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lapacke_sbdsqr.c File Reference
#include "lapacke_utils.h"
Include dependency graph for lapacke_sbdsqr.c:

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Functions/Subroutines

lapack_int LAPACKE_sbdsqr (int matrix_order, char uplo, lapack_int n, lapack_int ncvt, lapack_int nru, lapack_int ncc, float *d, float *e, float *vt, lapack_int ldvt, float *u, lapack_int ldu, float *c, lapack_int ldc)

Function/Subroutine Documentation

lapack_int LAPACKE_sbdsqr ( int  matrix_order,
char  uplo,
lapack_int  n,
lapack_int  ncvt,
lapack_int  nru,
lapack_int  ncc,
float *  d,
float *  e,
float *  vt,
lapack_int  ldvt,
float *  u,
lapack_int  ldu,
float *  c,
lapack_int  ldc 
)

Definition at line 36 of file lapacke_sbdsqr.c.

{
lapack_int info = 0;
float* work = NULL;
if( matrix_order != LAPACK_COL_MAJOR && matrix_order != LAPACK_ROW_MAJOR ) {
LAPACKE_xerbla( "LAPACKE_sbdsqr", -1 );
return -1;
}
#ifndef LAPACK_DISABLE_NAN_CHECK
/* Optionally check input matrices for NaNs */
if( ncc != 0 ) {
if( LAPACKE_sge_nancheck( matrix_order, n, ncc, c, ldc ) ) {
return -13;
}
}
if( LAPACKE_s_nancheck( n, d, 1 ) ) {
return -7;
}
if( LAPACKE_s_nancheck( n-1, e, 1 ) ) {
return -8;
}
if( nru != 0 ) {
if( LAPACKE_sge_nancheck( matrix_order, nru, n, u, ldu ) ) {
return -11;
}
}
if( ncvt != 0 ) {
if( LAPACKE_sge_nancheck( matrix_order, n, ncvt, vt, ldvt ) ) {
return -9;
}
}
#endif
/* Allocate memory for working array(s) */
work = (float*)LAPACKE_malloc( sizeof(float) * MAX(1,4*n) );
if( work == NULL ) {
goto exit_level_0;
}
/* Call middle-level interface */
info = LAPACKE_sbdsqr_work( matrix_order, uplo, n, ncvt, nru, ncc, d, e, vt,
ldvt, u, ldu, c, ldc, work );
/* Release memory and exit */
LAPACKE_free( work );
exit_level_0:
if( info == LAPACK_WORK_MEMORY_ERROR ) {
LAPACKE_xerbla( "LAPACKE_sbdsqr", info );
}
return info;
}

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