lapack_int LAPACKE_zpbtrf_work( int matrix_order, char uplo, lapack_int n,
lapack_int kd, lapack_complex_double* ab,
lapack_int ldab )
{
lapack_int info = 0;
if( matrix_order == LAPACK_COL_MAJOR ) {
/* Call LAPACK function and adjust info */
LAPACK_zpbtrf( &uplo, &n, &kd, ab, &ldab, &info );
if( info < 0 ) {
info = info - 1;
}
} else if( matrix_order == LAPACK_ROW_MAJOR ) {
lapack_int ldab_t = MAX(1,kd+1);
lapack_complex_double* ab_t = NULL;
/* Check leading dimension(s) */
if( ldab < n ) {
info = -6;
LAPACKE_xerbla( "LAPACKE_zpbtrf_work", info );
return info;
}
/* Allocate memory for temporary array(s) */
ab_t = (lapack_complex_double*)
LAPACKE_malloc( sizeof(lapack_complex_double) * ldab_t * MAX(1,n) );
if( ab_t == NULL ) {
info = LAPACK_TRANSPOSE_MEMORY_ERROR;
goto exit_level_0;
}
/* Transpose input matrices */
LAPACKE_zpb_trans( matrix_order, uplo, n, kd, ab, ldab, ab_t, ldab_t );
/* Call LAPACK function and adjust info */
LAPACK_zpbtrf( &uplo, &n, &kd, ab_t, &ldab_t, &info );
if( info < 0 ) {
info = info - 1;
}
/* Transpose output matrices */
LAPACKE_zpb_trans( LAPACK_COL_MAJOR, uplo, n, kd, ab_t, ldab_t, ab,
ldab );
/* Release memory and exit */
LAPACKE_free( ab_t );
exit_level_0:
if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
LAPACKE_xerbla( "LAPACKE_zpbtrf_work", info );
}
} else {
info = -1;
LAPACKE_xerbla( "LAPACKE_zpbtrf_work", info );
}
return info;
}
lapack_int LAPACKE_zpbsvx_work( int matrix_order, char fact, char uplo,
lapack_int n, lapack_int kd, lapack_int nrhs,
lapack_complex_double* ab, lapack_int ldab,
lapack_complex_double* afb, lapack_int ldafb,
char* equed, double* s,
lapack_complex_double* b, lapack_int ldb,
lapack_complex_double* x, lapack_int ldx,
double* rcond, double* ferr, double* berr,
lapack_complex_double* work, double* rwork )
{
lapack_int info = 0;
if( matrix_order == LAPACK_COL_MAJOR ) {
/* Call LAPACK function and adjust info */
LAPACK_zpbsvx( &fact, &uplo, &n, &kd, &nrhs, ab, &ldab, afb, &ldafb,
equed, s, b, &ldb, x, &ldx, rcond, ferr, berr, work,
rwork, &info );
if( info < 0 ) {
info = info - 1;
}
} else if( matrix_order == LAPACK_ROW_MAJOR ) {
lapack_int ldab_t = MAX(1,kd+1);
lapack_int ldafb_t = MAX(1,kd+1);
lapack_int ldb_t = MAX(1,n);
lapack_int ldx_t = MAX(1,n);
lapack_complex_double* ab_t = NULL;
lapack_complex_double* afb_t = NULL;
lapack_complex_double* b_t = NULL;
lapack_complex_double* x_t = NULL;
/* Check leading dimension(s) */
if( ldab < n ) {
info = -8;
LAPACKE_xerbla( "LAPACKE_zpbsvx_work", info );
return info;
}
if( ldafb < n ) {
info = -10;
LAPACKE_xerbla( "LAPACKE_zpbsvx_work", info );
return info;
}
if( ldb < nrhs ) {
info = -14;
LAPACKE_xerbla( "LAPACKE_zpbsvx_work", info );
return info;
}
if( ldx < nrhs ) {
info = -16;
LAPACKE_xerbla( "LAPACKE_zpbsvx_work", info );
return info;
}
/* Allocate memory for temporary array(s) */
ab_t = (lapack_complex_double*)
LAPACKE_malloc( sizeof(lapack_complex_double) * ldab_t * MAX(1,n) );
if( ab_t == NULL ) {
info = LAPACK_TRANSPOSE_MEMORY_ERROR;
goto exit_level_0;
}
afb_t = (lapack_complex_double*)
LAPACKE_malloc( sizeof(lapack_complex_double) *
ldafb_t * MAX(1,n) );
if( afb_t == NULL ) {
info = LAPACK_TRANSPOSE_MEMORY_ERROR;
goto exit_level_1;
}
b_t = (lapack_complex_double*)
LAPACKE_malloc( sizeof(lapack_complex_double) *
ldb_t * MAX(1,nrhs) );
if( b_t == NULL ) {
info = LAPACK_TRANSPOSE_MEMORY_ERROR;
goto exit_level_2;
}
x_t = (lapack_complex_double*)
LAPACKE_malloc( sizeof(lapack_complex_double) *
ldx_t * MAX(1,nrhs) );
if( x_t == NULL ) {
info = LAPACK_TRANSPOSE_MEMORY_ERROR;
goto exit_level_3;
}
/* Transpose input matrices */
LAPACKE_zpb_trans( matrix_order, uplo, n, kd, ab, ldab, ab_t, ldab_t );
if( LAPACKE_lsame( fact, 'f' ) ) {
LAPACKE_zpb_trans( matrix_order, uplo, n, kd, afb, ldafb, afb_t,
ldafb_t );
}
LAPACKE_zge_trans( matrix_order, n, nrhs, b, ldb, b_t, ldb_t );
/* Call LAPACK function and adjust info */
LAPACK_zpbsvx( &fact, &uplo, &n, &kd, &nrhs, ab_t, &ldab_t, afb_t,
&ldafb_t, equed, s, b_t, &ldb_t, x_t, &ldx_t, rcond,
ferr, berr, work, rwork, &info );
if( info < 0 ) {
info = info - 1;
}
/* Transpose output matrices */
if( LAPACKE_lsame( fact, 'e' ) && LAPACKE_lsame( *equed, 'y' ) ) {
LAPACKE_zpb_trans( LAPACK_COL_MAJOR, uplo, n, kd, ab_t, ldab_t, ab,
ldab );
}
if( LAPACKE_lsame( fact, 'e' ) || LAPACKE_lsame( fact, 'n' ) ) {
LAPACKE_zpb_trans( LAPACK_COL_MAJOR, uplo, n, kd, afb_t, ldafb_t,
afb, ldafb );
}
LAPACKE_zge_trans( LAPACK_COL_MAJOR, n, nrhs, b_t, ldb_t, b, ldb );
LAPACKE_zge_trans( LAPACK_COL_MAJOR, n, nrhs, x_t, ldx_t, x, ldx );
/* Release memory and exit */
LAPACKE_free( x_t );
exit_level_3:
LAPACKE_free( b_t );
exit_level_2:
LAPACKE_free( afb_t );
exit_level_1:
LAPACKE_free( ab_t );
exit_level_0:
if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
LAPACKE_xerbla( "LAPACKE_zpbsvx_work", info );
}
} else {
info = -1;
LAPACKE_xerbla( "LAPACKE_zpbsvx_work", info );
}
return info;
}
