Function m4ri_sys::mzd_init_window_const

pub unsafe extern "C" fn mzd_init_window_const(
    matrix: *const Mzd, 
    lowr: Rci, 
    lowc: Rci, 
    highr: Rci, 
    highc: Rci
) -> *const Mzd

Create a const window/view into a const matrix