pub unsafe extern fn LAPACKE_chbgst(matrix_layout: c_int,
vect: c_char,
uplo: c_char,
n: lapack_int,
ka: lapack_int,
kb: lapack_int,
ab: *mut lapack_complex_float,
ldab: lapack_int,
bb: *const lapack_complex_float,
ldbb: lapack_int,
x: *mut lapack_complex_float,
ldx: lapack_int)
-> lapack_int