lapacke_zlantr.c File Reference

#include "lapacke_utils.h"

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Functions
double	LAPACKE_zlantr (int matrix_order, char norm, char uplo, char diag, lapack_int m, lapack_int n, const lapack_complex_double *a, lapack_int lda)

Function Documentation

double LAPACKE_zlantr	(	int	matrix_order,
		char	norm,
		char	uplo,
		char	diag,
		lapack_int	m,
		lapack_int	n,
		const lapack_complex_double *	a,
		lapack_int	lda
	)

Definition at line 36 of file lapacke_zlantr.c.

{
    lapack_int info = 0;
        double res = 0.;
    double* work = NULL;
    if( matrix_order != LAPACK_COL_MAJOR && matrix_order != LAPACK_ROW_MAJOR ) {
        LAPACKE_xerbla( "LAPACKE_zlantr", -1 );
        return -1;
    }
#ifndef LAPACK_DISABLE_NAN_CHECK
    /* Optionally check input matrices for NaNs */
    if( LAPACKE_ztr_nancheck( matrix_order, uplo, diag, n, a, lda ) ) {
        return -7;
    }
#endif
    /* Allocate memory for working array(s) */
    if( LAPACKE_lsame( norm, 'i' ) || LAPACKE_lsame( norm, '1' ) ||
        LAPACKE_lsame( norm, '0' ) ) {
        work = (double*)LAPACKE_malloc( sizeof(double) * MAX(1,m) );
        if( work == NULL ) {
            info = LAPACK_WORK_MEMORY_ERROR;
            goto exit_level_0;
        }
    }
    /* Call middle-level interface */
    res = LAPACKE_zlantr_work( matrix_order, norm, uplo, diag, m, n, a, lda,
                                work );
    /* Release memory and exit */
    if( LAPACKE_lsame( norm, 'i' ) || LAPACKE_lsame( norm, '1' ) ||
        LAPACKE_lsame( norm, '0' ) ) {
        LAPACKE_free( work );
    }
exit_level_0:
    if( info == LAPACK_WORK_MEMORY_ERROR ) {
        LAPACKE_xerbla( "LAPACKE_zlantr", info );
    }
    return res;
}

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