lapacke_dgbrfsx.c File Reference

#include "lapacke_utils.h"

Go to the source code of this file.

Functions

lapack_int

LAPACKE_dgbrfsx (int matrix_layout, char trans, char equed, lapack_int n, lapack_int kl, lapack_int ku, lapack_int nrhs, const double *ab, lapack_int ldab, const double *afb, lapack_int ldafb, const lapack_int *ipiv, const double *r, const double *c, const double *b, lapack_int ldb, double *x, lapack_int ldx, double *rcond, double *berr, lapack_int n_err_bnds, double *err_bnds_norm, double *err_bnds_comp, lapack_int nparams, double *params)

Function Documentation

LAPACKE_dgbrfsx()

lapack_int LAPACKE_dgbrfsx	(	int	matrix_layout,
		char	trans,
		char	equed,
		lapack_int	n,
		lapack_int	kl,
		lapack_int	ku,
		lapack_int	nrhs,
		const double *	ab,
		lapack_int	ldab,
		const double *	afb,
		lapack_int	ldafb,
		const lapack_int *	ipiv,
		const double *	r,
		const double *	c,
		const double *	b,
		lapack_int	ldb,
		double *	x,
		lapack_int	ldx,
		double *	rcond,
		double *	berr,
		lapack_int	n_err_bnds,
		double *	err_bnds_norm,
		double *	err_bnds_comp,
		lapack_int	nparams,
		double *	params )

Definition at line 35 of file lapacke_dgbrfsx.c.

{
    lapack_int info = 0;
    lapack_int* iwork = NULL;
    double* work = NULL;
    if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
        LAPACKE_xerbla( "LAPACKE_dgbrfsx", -1 );
        return -1;
    }
#ifndef LAPACK_DISABLE_NAN_CHECK
    if( LAPACKE_get_nancheck() ) {
        /* Optionally check input matrices for NaNs */
        if( LAPACKE_dgb_nancheck( matrix_layout, n, n, kl, ku, ab, ldab ) ) {
            return -8;
        }
        if( LAPACKE_dgb_nancheck( matrix_layout, n, n, kl, kl+ku, afb, ldafb ) ) {
            return -10;
        }
        if( LAPACKE_dge_nancheck( matrix_layout, n, nrhs, b, ldb ) ) {
            return -15;
        }
        if( LAPACKE_lsame( equed, 'b' ) || LAPACKE_lsame( equed, 'c' ) ) {
            if( LAPACKE_d_nancheck( n, c, 1 ) ) {
                return -14;
            }
        }
        if( nparams>0 ) {
            if( LAPACKE_d_nancheck( nparams, params, 1 ) ) {
                return -25;
            }
        }
        if( LAPACKE_lsame( equed, 'b' ) || LAPACKE_lsame( equed, 'r' ) ) {
            if( LAPACKE_d_nancheck( n, r, 1 ) ) {
                return -13;
            }
        }
        if( LAPACKE_dge_nancheck( matrix_layout, n, nrhs, x, ldx ) ) {
            return -17;
        }
    }
#endif
    /* Allocate memory for working array(s) */
    iwork = (lapack_int*)LAPACKE_malloc( sizeof(lapack_int) * MAX(1,n) );
    if( iwork == NULL ) {
        info = LAPACK_WORK_MEMORY_ERROR;
        goto exit_level_0;
    }
    work = (double*)LAPACKE_malloc( sizeof(double) * MAX(1,4*n) );
    if( work == NULL ) {
        info = LAPACK_WORK_MEMORY_ERROR;
        goto exit_level_1;
    }
    /* Call middle-level interface */
    info = LAPACKE_dgbrfsx_work( matrix_layout, trans, equed, n, kl, ku, nrhs,
                                 ab, ldab, afb, ldafb, ipiv, r, c, b, ldb, x,
                                 ldx, rcond, berr, n_err_bnds, err_bnds_norm,
                                 err_bnds_comp, nparams, params, work, iwork );
    /* Release memory and exit */
    LAPACKE_free( work );
exit_level_1:
    LAPACKE_free( iwork );
exit_level_0:
    if( info == LAPACK_WORK_MEMORY_ERROR ) {
        LAPACKE_xerbla( "LAPACKE_dgbrfsx", info );
    }
    return info;
}