lapacke_zlagsy_work.c File Reference

#include "lapacke_utils.h"

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Functions
lapack_int	LAPACKE_zlagsy_work (int matrix_order, lapack_int n, lapack_int k, const double *d, lapack_complex_double *a, lapack_int lda, lapack_int *iseed, lapack_complex_double *work)

Function Documentation

lapack_int LAPACKE_zlagsy_work	(	int	matrix_order,
		lapack_int	n,
		lapack_int	k,
		const double *	d,
		lapack_complex_double *	a,
		lapack_int	lda,
		lapack_int *	iseed,
		lapack_complex_double *	work
	)

Definition at line 36 of file lapacke_zlagsy_work.c.

{
    lapack_int info = 0;
    if( matrix_order == LAPACK_COL_MAJOR ) {
        /* Call LAPACK function and adjust info */
        LAPACK_zlagsy( &n, &k, d, a, &lda, iseed, work, &info );
        if( info < 0 ) {
            info = info - 1;
        }
    } else if( matrix_order == LAPACK_ROW_MAJOR ) {
        lapack_int lda_t = MAX(1,n);
        lapack_complex_double* a_t = NULL;
        /* Check leading dimension(s) */
        if( lda < n ) {
            info = -6;
            LAPACKE_xerbla( "LAPACKE_zlagsy_work", info );
            return info;
        }
        /* Allocate memory for temporary array(s) */
        a_t = (lapack_complex_double*)
            LAPACKE_malloc( sizeof(lapack_complex_double) * lda_t * MAX(1,n) );
        if( a_t == NULL ) {
            info = LAPACK_TRANSPOSE_MEMORY_ERROR;
            goto exit_level_0;
        }
        /* Call LAPACK function and adjust info */
        LAPACK_zlagsy( &n, &k, d, a_t, &lda_t, iseed, work, &info );
        if( info < 0 ) {
            info = info - 1;
        }
        /* Transpose output matrices */
        LAPACKE_zge_trans( LAPACK_COL_MAJOR, n, n, a_t, lda_t, a, lda );
        /* Release memory and exit */
        LAPACKE_free( a_t );
exit_level_0:
        if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
            LAPACKE_xerbla( "LAPACKE_zlagsy_work", info );
        }
    } else {
        info = -1;
        LAPACKE_xerbla( "LAPACKE_zlagsy_work", info );
    }
    return info;
}

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