Function libgit2_sys::git_patch_from_buffers

pub unsafe extern fn git_patch_from_buffers(out: *mut *mut git_patch,
                                            old_buffer: *const c_void,
                                            old_len: size_t,
                                            old_as_path: *const c_char,
                                            new_buffer: *const c_char,
                                            new_len: size_t,
                                            new_as_path: *const c_char,
                                            opts: *const git_diff_options)
                                            -> c_int