lapacke_dtpmqrt.c

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* Contents: Native high-level C interface to LAPACK function dtpmqrt
* Author: Intel Corporation
* Generated June 2016
*****************************************************************************/
 
#include "lapacke_utils.h"
 
lapack_int LAPACKE_dtpmqrt( int matrix_layout, char side, char trans,
                            lapack_int m, lapack_int n, lapack_int k,
                            lapack_int l, lapack_int nb, const double* v,
                            lapack_int ldv, const double* t, lapack_int ldt,
                            double* a, lapack_int lda, double* b,
                            lapack_int ldb )
{
    lapack_int ncols_a, nrows_a;
    lapack_int nrows_v;
    lapack_int lwork;
    lapack_int info = 0;
    double* work = NULL;
    if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
        LAPACKE_xerbla( "LAPACKE_dtpmqrt", -1 );
        return -1;
    }
#ifndef LAPACK_DISABLE_NAN_CHECK
    if( LAPACKE_get_nancheck() ) {
        /* Optionally check input matrices for NaNs */
        ncols_a = LAPACKE_lsame( side, 'L' ) ? n :
                             ( LAPACKE_lsame( side, 'R' ) ? k : 0 );
        nrows_a = LAPACKE_lsame( side, 'L' ) ? k :
                             ( LAPACKE_lsame( side, 'R' ) ? m : 0 );
        nrows_v = LAPACKE_lsame( side, 'L' ) ? m :
                             ( LAPACKE_lsame( side, 'R' ) ? n : 0 );
        if( LAPACKE_dge_nancheck( matrix_layout, nrows_a, ncols_a, a, lda ) ) {
            return -13;
        }
        if( LAPACKE_dge_nancheck( matrix_layout, m, n, b, ldb ) ) {
            return -15;
        }
        if( LAPACKE_dge_nancheck( matrix_layout, nb, k, t, ldt ) ) {
            return -11;
        }
        if( LAPACKE_dge_nancheck( matrix_layout, nrows_v, k, v, ldv ) ) {
            return -9;
        }
    }
#endif
    /* Allocate memory for working array(s) */
    lwork = LAPACKE_lsame( side, 'L' ) ? MAX(1,nb) * MAX(1,n) :
                       ( LAPACKE_lsame( side, 'R' ) ? MAX(1,m) * MAX(1,nb) : 0 );
    work = (double*)LAPACKE_malloc( sizeof(double) * lwork );
    if( work == NULL ) {
        info = LAPACK_WORK_MEMORY_ERROR;
        goto exit_level_0;
    }
    /* Call middle-level interface */
    info = LAPACKE_dtpmqrt_work( matrix_layout, side, trans, m, n, k, l, nb, v,
                                 ldv, t, ldt, a, lda, b, ldb, work );
    /* Release memory and exit */
    LAPACKE_free( work );
exit_level_0:
    if( info == LAPACK_WORK_MEMORY_ERROR ) {
        LAPACKE_xerbla( "LAPACKE_dtpmqrt", info );
    }
    return info;
}