lapack_int LAPACKE_stftri_work( int matrix_order, char transr, char uplo,
char diag, lapack_int n, float* a )
{
lapack_int info = 0;
if( matrix_order == LAPACK_COL_MAJOR ) {
/* Call LAPACK function and adjust info */
LAPACK_stftri( &transr, &uplo, &diag, &n, a, &info );
if( info < 0 ) {
info = info - 1;
}
} else if( matrix_order == LAPACK_ROW_MAJOR ) {
float* a_t = NULL;
/* Allocate memory for temporary array(s) */
a_t = (float*)
LAPACKE_malloc( sizeof(float) * ( MAX(1,n) * MAX(2,n+1) ) / 2 );
if( a_t == NULL ) {
info = LAPACK_TRANSPOSE_MEMORY_ERROR;
goto exit_level_0;
}
/* Transpose input matrices */
LAPACKE_stf_trans( matrix_order, transr, uplo, diag, n, a, a_t );
/* Call LAPACK function and adjust info */
LAPACK_stftri( &transr, &uplo, &diag, &n, a_t, &info );
if( info < 0 ) {
info = info - 1;
}
/* Transpose output matrices */
LAPACKE_stf_trans( LAPACK_COL_MAJOR, transr, uplo, diag, n, a_t, a );
/* Release memory and exit */
LAPACKE_free( a_t );
exit_level_0:
if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
LAPACKE_xerbla( "LAPACKE_stftri_work", info );
}
} else {
info = -1;
LAPACKE_xerbla( "LAPACKE_stftri_work", info );
}
return info;
}
lapack_int LAPACKE_stfsm_work( int matrix_layout, char transr, char side,
char uplo, char trans, char diag, lapack_int m,
lapack_int n, float alpha, const float* a,
float* b, lapack_int ldb )
{
lapack_int info = 0;
if( matrix_layout == LAPACK_COL_MAJOR ) {
/* Call LAPACK function and adjust info */
LAPACK_stfsm( &transr, &side, &uplo, &trans, &diag, &m, &n, &alpha, a,
b, &ldb );
if( info < 0 ) {
info = info - 1;
}
} else if( matrix_layout == LAPACK_ROW_MAJOR ) {
lapack_int ldb_t = MAX(1,m);
float* b_t = NULL;
float* a_t = NULL;
/* Check leading dimension(s) */
if( ldb < n ) {
info = -12;
LAPACKE_xerbla( "LAPACKE_stfsm_work", info );
return info;
}
/* Allocate memory for temporary array(s) */
b_t = (float*)LAPACKE_malloc( sizeof(float) * ldb_t * MAX(1,n) );
if( b_t == NULL ) {
info = LAPACK_TRANSPOSE_MEMORY_ERROR;
goto exit_level_0;
}
if( IS_S_NONZERO(alpha) ) {
a_t = (float*)
LAPACKE_malloc( sizeof(float) * ( MAX(1,n) * MAX(2,n+1) ) / 2 );
if( a_t == NULL ) {
info = LAPACK_TRANSPOSE_MEMORY_ERROR;
goto exit_level_1;
}
}
/* Transpose input matrices */
if( IS_S_NONZERO(alpha) ) {
LAPACKE_sge_trans( matrix_layout, m, n, b, ldb, b_t, ldb_t );
}
if( IS_S_NONZERO(alpha) ) {
LAPACKE_stf_trans( matrix_layout, transr, uplo, diag, n, a, a_t );
}
/* Call LAPACK function and adjust info */
LAPACK_stfsm( &transr, &side, &uplo, &trans, &diag, &m, &n, &alpha, a_t,
b_t, &ldb_t );
info = 0; /* LAPACK call is ok! */
/* Transpose output matrices */
LAPACKE_sge_trans( LAPACK_COL_MAJOR, m, n, b_t, ldb_t, b, ldb );
/* Release memory and exit */
if( IS_S_NONZERO(alpha) ) {
LAPACKE_free( a_t );
}
exit_level_1:
LAPACKE_free( b_t );
exit_level_0:
if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
LAPACKE_xerbla( "LAPACKE_stfsm_work", info );
}
} else {
info = -1;
LAPACKE_xerbla( "LAPACKE_stfsm_work", info );
}
return info;
}
