lapacke_zlarcm.c

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* Contents: Native high-level C interface to LAPACK function zlarcm
* Author: Intel Corporation
*****************************************************************************/
 
#include "lapacke_utils.h"
 
lapack_int LAPACKE_zlarcm(int matrix_layout, lapack_int m,
                           lapack_int n, const double* a, lapack_int lda,
                           const lapack_complex_double* b, lapack_int ldb,
                           lapack_complex_double* c, lapack_int ldc)
{
    lapack_int info = 0;
    double* rwork = NULL;
 
    if (matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR) {
        LAPACKE_xerbla("LAPACKE_zlarcm", -1);
        return -1;
    }
#ifndef LAPACK_DISABLE_NAN_CHECK
    if ( LAPACKE_get_nancheck() ) {
        /* Optionally check input matrices for NaNs */
        if( LAPACKE_dge_nancheck( matrix_layout, m, m, a, lda ) ) {
            return -4;
        }
        if( LAPACKE_zge_nancheck( matrix_layout, m, n, b, ldb ) ) {
            return -6;
        }
    }
#endif
    /* Allocate memory for work array(s) */
    rwork = (double*)
        LAPACKE_malloc(sizeof(double) * MAX(1, 2 * m * n));
    if (rwork == NULL) {
        info = LAPACK_WORK_MEMORY_ERROR;
        goto exit_level_0;
    }
    /* Call middle-level interface */
    info = LAPACKE_zlarcm_work(matrix_layout, m, n, a, lda, b, ldb,
                                c, ldc, rwork);
    /* Release memory and exit */
    LAPACKE_free(rwork);
exit_level_0:
    if( info == LAPACK_WORK_MEMORY_ERROR ) {
        LAPACKE_xerbla( "LAPACKE_zlarcm", info );
    }
    return info;
}