LAPACK  3.5.0
LAPACK: Linear Algebra PACKage
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lapacke_dtgsyl_work.c File Reference
#include "lapacke_utils.h"
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Functions/Subroutines

lapack_int LAPACKE_dtgsyl_work (int matrix_order, char trans, lapack_int ijob, lapack_int m, lapack_int n, const double *a, lapack_int lda, const double *b, lapack_int ldb, double *c, lapack_int ldc, const double *d, lapack_int ldd, const double *e, lapack_int lde, double *f, lapack_int ldf, double *scale, double *dif, double *work, lapack_int lwork, lapack_int *iwork)

Function/Subroutine Documentation

lapack_int LAPACKE_dtgsyl_work ( int  matrix_order,
char  trans,
lapack_int  ijob,
lapack_int  m,
lapack_int  n,
const double *  a,
lapack_int  lda,
const double *  b,
lapack_int  ldb,
double *  c,
lapack_int  ldc,
const double *  d,
lapack_int  ldd,
const double *  e,
lapack_int  lde,
double *  f,
lapack_int  ldf,
double *  scale,
double *  dif,
double *  work,
lapack_int  lwork,
lapack_int iwork 
)

Definition at line 36 of file lapacke_dtgsyl_work.c.

{
lapack_int info = 0;
if( matrix_order == LAPACK_COL_MAJOR ) {
/* Call LAPACK function and adjust info */
LAPACK_dtgsyl( &trans, &ijob, &m, &n, a, &lda, b, &ldb, c, &ldc, d,
&ldd, e, &lde, f, &ldf, scale, dif, work, &lwork, iwork,
&info );
if( info < 0 ) {
info = info - 1;
}
} else if( matrix_order == LAPACK_ROW_MAJOR ) {
lapack_int lda_t = MAX(1,m);
lapack_int ldb_t = MAX(1,n);
lapack_int ldc_t = MAX(1,m);
lapack_int ldd_t = MAX(1,m);
lapack_int lde_t = MAX(1,n);
lapack_int ldf_t = MAX(1,m);
double* a_t = NULL;
double* b_t = NULL;
double* c_t = NULL;
double* d_t = NULL;
double* e_t = NULL;
double* f_t = NULL;
/* Check leading dimension(s) */
if( lda < m ) {
info = -7;
LAPACKE_xerbla( "LAPACKE_dtgsyl_work", info );
return info;
}
if( ldb < n ) {
info = -9;
LAPACKE_xerbla( "LAPACKE_dtgsyl_work", info );
return info;
}
if( ldc < n ) {
info = -11;
LAPACKE_xerbla( "LAPACKE_dtgsyl_work", info );
return info;
}
if( ldd < m ) {
info = -13;
LAPACKE_xerbla( "LAPACKE_dtgsyl_work", info );
return info;
}
if( lde < n ) {
info = -15;
LAPACKE_xerbla( "LAPACKE_dtgsyl_work", info );
return info;
}
if( ldf < n ) {
info = -17;
LAPACKE_xerbla( "LAPACKE_dtgsyl_work", info );
return info;
}
/* Query optimal working array(s) size if requested */
if( lwork == -1 ) {
LAPACK_dtgsyl( &trans, &ijob, &m, &n, a, &lda_t, b, &ldb_t, c,
&ldc_t, d, &ldd_t, e, &lde_t, f, &ldf_t, scale, dif,
work, &lwork, iwork, &info );
return (info < 0) ? (info - 1) : info;
}
/* Allocate memory for temporary array(s) */
a_t = (double*)LAPACKE_malloc( sizeof(double) * lda_t * MAX(1,m) );
if( a_t == NULL ) {
goto exit_level_0;
}
b_t = (double*)LAPACKE_malloc( sizeof(double) * ldb_t * MAX(1,n) );
if( b_t == NULL ) {
goto exit_level_1;
}
c_t = (double*)LAPACKE_malloc( sizeof(double) * ldc_t * MAX(1,n) );
if( c_t == NULL ) {
goto exit_level_2;
}
d_t = (double*)LAPACKE_malloc( sizeof(double) * ldd_t * MAX(1,m) );
if( d_t == NULL ) {
goto exit_level_3;
}
e_t = (double*)LAPACKE_malloc( sizeof(double) * lde_t * MAX(1,n) );
if( e_t == NULL ) {
goto exit_level_4;
}
f_t = (double*)LAPACKE_malloc( sizeof(double) * ldf_t * MAX(1,n) );
if( f_t == NULL ) {
goto exit_level_5;
}
/* Transpose input matrices */
LAPACKE_dge_trans( matrix_order, m, m, a, lda, a_t, lda_t );
LAPACKE_dge_trans( matrix_order, n, n, b, ldb, b_t, ldb_t );
LAPACKE_dge_trans( matrix_order, m, n, c, ldc, c_t, ldc_t );
LAPACKE_dge_trans( matrix_order, m, m, d, ldd, d_t, ldd_t );
LAPACKE_dge_trans( matrix_order, n, n, e, lde, e_t, lde_t );
LAPACKE_dge_trans( matrix_order, m, n, f, ldf, f_t, ldf_t );
/* Call LAPACK function and adjust info */
LAPACK_dtgsyl( &trans, &ijob, &m, &n, a_t, &lda_t, b_t, &ldb_t, c_t,
&ldc_t, d_t, &ldd_t, e_t, &lde_t, f_t, &ldf_t, scale,
dif, work, &lwork, iwork, &info );
if( info < 0 ) {
info = info - 1;
}
/* Transpose output matrices */
LAPACKE_dge_trans( LAPACK_COL_MAJOR, m, n, c_t, ldc_t, c, ldc );
LAPACKE_dge_trans( LAPACK_COL_MAJOR, m, n, f_t, ldf_t, f, ldf );
/* Release memory and exit */
LAPACKE_free( f_t );
exit_level_5:
LAPACKE_free( e_t );
exit_level_4:
LAPACKE_free( d_t );
exit_level_3:
LAPACKE_free( c_t );
exit_level_2:
LAPACKE_free( b_t );
exit_level_1:
LAPACKE_free( a_t );
exit_level_0:
LAPACKE_xerbla( "LAPACKE_dtgsyl_work", info );
}
} else {
info = -1;
LAPACKE_xerbla( "LAPACKE_dtgsyl_work", info );
}
return info;
}

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