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*****************************************************************************
* Contents: Native middle-level C interface to LAPACK function dorcsd2by1
* Author: Intel Corporation
* Generated June 2016
*****************************************************************************/
#include "lapacke_utils.h"
lapack_int LAPACKE_dorcsd2by1_work( int matrix_layout, char jobu1, char jobu2,
char jobv1t, lapack_int m, lapack_int p,
lapack_int q, double* x11, lapack_int ldx11,
double* x21, lapack_int ldx21,
double* theta, double* u1, lapack_int ldu1,
double* u2, lapack_int ldu2, double* v1t,
lapack_int ldv1t, double* work, lapack_int lwork,
lapack_int* iwork )
{
lapack_int info = 0;
if( matrix_layout == LAPACK_COL_MAJOR ) {
/* Call LAPACK function and adjust info */
LAPACK_dorcsd2by1( &jobu1, &jobu2, &jobv1t, &m, &p,
&q, x11, &ldx11, x21, &ldx21,
theta, u1, &ldu1, u2, &ldu2, v1t, &ldv1t,
work, &lwork, iwork, &info );
if( info < 0 ) {
info = info - 1;
}
} else if( matrix_layout == LAPACK_ROW_MAJOR ) {
lapack_int nrows_x11 = p;
lapack_int nrows_x21 = m-p;
lapack_int nrows_u1 = ( LAPACKE_lsame( jobu1, 'y' ) ? p : 1);
lapack_int nrows_u2 = ( LAPACKE_lsame( jobu2, 'y' ) ? m-p : 1);
lapack_int nrows_v1t = ( LAPACKE_lsame( jobv1t, 'y' ) ? q : 1);
lapack_int ldu1_t = MAX(1,nrows_u1);
lapack_int ldu2_t = MAX(1,nrows_u2);
lapack_int ldv1t_t = MAX(1,nrows_v1t);
lapack_int ldx11_t = MAX(1,nrows_x11);
lapack_int ldx21_t = MAX(1,nrows_x21);
double* x11_t = NULL;
double* x21_t = NULL;
double* u1_t = NULL;
double* u2_t = NULL;
double* v1t_t = NULL;
/* Check leading dimension(s) */
if( ldu1 < p ) {
info = -21;
LAPACKE_xerbla( "LAPACKE_dorcsd2by1_work", info );
return info;
}
if( ldu2 < m-p ) {
info = -23;
LAPACKE_xerbla( "LAPACKE_dorcsd2by1_work", info );
return info;
}
if( ldv1t < q ) {
info = -25;
LAPACKE_xerbla( "LAPACKE_dorcsd2by1_work", info );
return info;
}
if( ldx11 < q ) {
info = -12;
LAPACKE_xerbla( "LAPACKE_dorcsd2by1_work", info );
return info;
}
if( ldx21 < q ) {
info = -16;
LAPACKE_xerbla( "LAPACKE_dorcsd2by1_work", info );
return info;
}
/* Query optimal working array(s) size if requested */
if( lwork == -1 ) {
LAPACK_dorcsd2by1( &jobu1, &jobu2, &jobv1t, &m, &p,
&q, x11, &ldx11_t, x21, &ldx21_t,
theta, u1, &ldu1_t, u2, &ldu2_t, v1t, &ldv1t_t,
work, &lwork, iwork, &info );
return (info < 0) ? (info - 1) : info;
}
/* Allocate memory for temporary array(s) */
x11_t = (double*)LAPACKE_malloc( sizeof(double) * ldx11_t * MAX(1,q) );
if( x11_t == NULL ) {
info = LAPACK_TRANSPOSE_MEMORY_ERROR;
goto exit_level_0;
}
x21_t = (double*)LAPACKE_malloc( sizeof(double) * ldx21_t * MAX(1,q) );
if( x21_t == NULL ) {
info = LAPACK_TRANSPOSE_MEMORY_ERROR;
goto exit_level_1;
}
if( LAPACKE_lsame( jobu1, 'y' ) ) {
u1_t = (double*)
LAPACKE_malloc( sizeof(double) * ldu1_t * MAX(1,p) );
if( u1_t == NULL ) {
info = LAPACK_TRANSPOSE_MEMORY_ERROR;
goto exit_level_2;
}
}
if( LAPACKE_lsame( jobu2, 'y' ) ) {
u2_t = (double*)
LAPACKE_malloc( sizeof(double) * ldu2_t * MAX(1,m-p) );
if( u2_t == NULL ) {
info = LAPACK_TRANSPOSE_MEMORY_ERROR;
goto exit_level_3;
}
}
if( LAPACKE_lsame( jobv1t, 'y' ) ) {
v1t_t = (double*)
LAPACKE_malloc( sizeof(double) * ldv1t_t * MAX(1,q) );
if( v1t_t == NULL ) {
info = LAPACK_TRANSPOSE_MEMORY_ERROR;
goto exit_level_4;
}
}
/* Transpose input matrices */
LAPACKE_dge_trans( matrix_layout, nrows_x11, q, x11, ldx11, x11_t,
ldx11_t );
LAPACKE_dge_trans( matrix_layout, nrows_x21, q, x21, ldx21, x21_t,
ldx21_t );
/* Call LAPACK function and adjust info */
LAPACK_dorcsd2by1( &jobu1, &jobu2, &jobv1t, &m, &p,
&q, x11_t, &ldx11_t, x21_t, &ldx21_t,
theta, u1_t, &ldu1_t, u2_t, &ldu2_t, v1t_t, &ldv1t_t,
work, &lwork, iwork, &info );
if( info < 0 ) {
info = info - 1;
}
/* Transpose output matrices */
LAPACKE_dge_trans( LAPACK_COL_MAJOR, nrows_x11, q, x11_t, ldx11_t, x11,
ldx11 );
LAPACKE_dge_trans( LAPACK_COL_MAJOR, nrows_x21, q, x21_t, ldx21_t, x21,
ldx21 );
if( LAPACKE_lsame( jobu1, 'y' ) ) {
LAPACKE_dge_trans( LAPACK_COL_MAJOR, nrows_u1, p, u1_t, ldu1_t, u1,
ldu1 );
}
if( LAPACKE_lsame( jobu2, 'y' ) ) {
LAPACKE_dge_trans( LAPACK_COL_MAJOR, nrows_u2, m-p, u2_t, ldu2_t,
u2, ldu2 );
}
if( LAPACKE_lsame( jobv1t, 'y' ) ) {
LAPACKE_dge_trans( LAPACK_COL_MAJOR, nrows_v1t, q, v1t_t, ldv1t_t,
v1t, ldv1t );
}
/* Release memory and exit */
if( LAPACKE_lsame( jobv1t, 'y' ) ) {
LAPACKE_free( v1t_t );
}
exit_level_4:
if( LAPACKE_lsame( jobu2, 'y' ) ) {
LAPACKE_free( u2_t );
}
exit_level_3:
if( LAPACKE_lsame( jobu1, 'y' ) ) {
LAPACKE_free( u1_t );
}
exit_level_2:
LAPACKE_free( x21_t );
exit_level_1:
LAPACKE_free( x11_t );
exit_level_0:
if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
LAPACKE_xerbla( "LAPACKE_dorcsd2by1_work", info );
}
} else {
info = -1;
LAPACKE_xerbla( "LAPACKE_dorcsd2by1_work", info );
}
return info;
}