typedef struct {
    double real;
    double imag;
} MKL_Complex16;

typedef int MKL_INT;

#define LAPACK_ROW_MAJOR               101
#define LAPACK_COL_MAJOR               102

MKL_INT LAPACKE_zheev(MKL_INT matrix_order, char jobz, char uplo, MKL_INT n, MKL_Complex16* a, MKL_INT lda, double* w );