lapacke_sgerfsx.c

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* Contents: Native high-level C interface to LAPACK function sgerfsx
* Author: Intel Corporation
* Generated October, 2010
*****************************************************************************/

#include "lapacke.h"
#include "lapacke_utils.h"

lapack_int LAPACKE_sgerfsx( int matrix_order, char trans, char equed,
                            lapack_int n, lapack_int nrhs, const float* a,
                            lapack_int lda, const float* af, lapack_int ldaf,
                            const lapack_int* ipiv, const float* r,
                            const float* c, const float* b, lapack_int ldb,
                            float* x, lapack_int ldx, float* rcond, float* berr,
                            lapack_int n_err_bnds, float* err_bnds_norm,
                            float* err_bnds_comp, lapack_int nparams,
                            float* params )
{
    lapack_int info = 0;
    lapack_int* iwork = NULL;
    float* work = NULL;
    if( matrix_order != LAPACK_COL_MAJOR && matrix_order != LAPACK_ROW_MAJOR ) {
        LAPACKE_xerbla( "LAPACKE_sgerfsx", -1 );
        return -1;
    }
#ifndef LAPACK_DISABLE_NAN_CHECK
    /* Optionally check input matrices for NaNs */
    if( LAPACKE_sge_nancheck( matrix_order, n, n, a, lda ) ) {
        return -6;
    }
    if( LAPACKE_sge_nancheck( matrix_order, n, n, af, ldaf ) ) {
        return -8;
    }
    if( LAPACKE_sge_nancheck( matrix_order, n, nrhs, b, ldb ) ) {
        return -13;
    }
    if( LAPACKE_lsame( equed, 'b' ) || LAPACKE_lsame( equed, 'c' ) ) {
        if( LAPACKE_s_nancheck( n, c, 1 ) ) {
            return -12;
        }
    }
    if( nparams>0 ) {
        if( LAPACKE_s_nancheck( nparams, params, 1 ) ) {
            return -23;
        }
    }
    if( LAPACKE_lsame( equed, 'b' ) || LAPACKE_lsame( equed, 'r' ) ) {
        if( LAPACKE_s_nancheck( n, r, 1 ) ) {
            return -11;
        }
    }
    if( LAPACKE_sge_nancheck( matrix_order, n, nrhs, x, ldx ) ) {
        return -15;
    }
#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 = (float*)LAPACKE_malloc( sizeof(float) * MAX(1,4*n) );
    if( work == NULL ) {
        info = LAPACK_WORK_MEMORY_ERROR;
        goto exit_level_1;
    }
    /* Call middle-level interface */
    info = LAPACKE_sgerfsx_work( matrix_order, trans, equed, n, nrhs, a, lda,
                                 af, ldaf, 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_sgerfsx", info );
    }
    return info;
}