Function libgit2_sys::git_diff_foreach

pub unsafe extern "C" fn git_diff_foreach(
    diff: *mut git_diff,
    file_cb: git_diff_file_cb,
    binary_cb: git_diff_binary_cb,
    hunk_cb: git_diff_hunk_cb,
    line_cb: git_diff_line_cb,
    payload: *mut c_void
) -> c_int