Crate of the week: safer_ffi

This week's crate is safer_ffi, a library to help write safe FFI code.

This week in Rust #344 — 23 jun 2020

https://this-week-in-rust.org/blog/2020/06/23/this-week-in-rust-344/

Updates from core

add asm!() support for hexagon
rust-lang/rust/pull/73214

enable LLVM zlib
rust-lang/rust/pull/72696

add methods to go from a nul-terminated Vec<u8> to a CString
rust-lang/rust/pull/73139

allow multiple asm! options groups and report an error on duplicate options
rust-lang/rust/pull/73227

diagnose use of incompatible sanitizers
rust-lang/rust/pull/73347

disallow loading crates with non-ascii identifier name
rust-lang/rust/pull/73305

export #[inline] fns with extern indicators
rust-lang/rust/pull/73034

fix up autoderef when reborrowing
rust-lang/rust/pull/72280

further tweak lifetime errors involving dyn Trait and impl Trait in return position
rust-lang/rust/pull/72804

implement crate-level-only lints checking.
rust-lang/rust/pull/73300

implement new gdb/lldb pretty-printers
rust-lang/rust/pull/72357

improve diagnostics for let x += 1
rust-lang/rust/pull/71976

make need_type_info_err more conservative
rust-lang/rust/pull/73027

make all uses of ty::Error delay a span bug
rust-lang/rust/pull/70551

make new type param suggestion more targetted
rust-lang/rust/pull/73320

make novel structural match violations not a bug
rust-lang/rust/pull/73446

only display other method receiver candidates if they actually apply
rust-lang/rust/pull/73382

prefer accessible paths in 'use' suggestions
rust-lang/rust/pull/72623

prevent attacker from manipulating FPU tag word used in SGX enclave
rust-lang/rust/pull/73471

projection bound validation
rust-lang/rust/pull/72788

report error when casting an C-like enum implementing Drop
rust-lang/rust/pull/72331

specialization is unsound
rust-lang/rust/pull/71420

use min_specialization in the remaining rustc crates
rust-lang/rust/pull/72707

add specialization of ToString for char
rust-lang/rust/pull/73465

suggest ?Sized when applicable for ADTs
rust-lang/rust/pull/73261

support sanitizers on aarch64-unknown-linux-gnu
rust-lang/rust/pull/73058

test that bounds checks are elided when slice len is checked up-front
rust-lang/rust/pull/73362

try to suggest dereferences on trait selection failed
rust-lang/rust/pull/72456

use track caller for bug! macro
rust-lang/rust/pull/73373

forbid mutable references in all constant contexts except for const-fns
rust-lang/rust/pull/72934

linker: MSVC supports linking static libraries as a whole archive
rust-lang/rust/pull/72785

linker: never pass -no-pie to non-gnu linkers
rust-lang/rust/pull/73384

lint: normalize projections using opaque types
rust-lang/rust/pull/73287

add a lint to catch clashing extern fn declarations.
rust-lang/rust/pull/70946

memory access sanity checks: abort instead of panic
rust-lang/rust/pull/73054

pretty/mir: const value enums with no variants
rust-lang/rust/pull/73442

store ObligationCause on the heap
rust-lang/rust/pull/72962

chalk: add closures
rust-lang/chalk/pull/519

chalk: ignore auto traits order
rust-lang/chalk/pull/531

fix asinh of negative values
rust-lang/rust/pull/72486

stabilize Option::zip
rust-lang/rust/pull/72938

stabilize vec::Drain::as_slice
rust-lang/rust/pull/72584

use Ipv4Addr::from<[u8; 4]> when possible
rust-lang/rust/pull/73389

core/time: Add Duration methods for zero
rust-lang/rust/pull/72790

deprecate wrapping_offset_from
rust-lang/rust/pull/73580

hashbrown: avoid creating small tables with a capacity of 1
rust-lang/hashbrown/pull/162

stdarch: add AVX 512f gather, scatter and compare intrinsics
rust-lang/stdarch/pull/866

cargo: adding environment variable CARGO_PKG_LICENSE
rust-lang/cargo/pull/8325

cargo: cut down on data fetch from git dependencies
rust-lang/cargo/pull/8363

cargo: fix doctests not running with --target=HOST
rust-lang/cargo/pull/8358

cargo: fix order-dependent feature resolution.
rust-lang/cargo/pull/8395

cargo: fix overzealous clean -p for reserved names
rust-lang/cargo/pull/8398

cargo: support linker with -Zdoctest-xcompile.
rust-lang/cargo/pull/8359

rustfmt: avoid using Symbol::intern
rust-lang/rustfmt/pull/4268

rustfmt: ensure idempotency on empty match blocks
rust-lang/rustfmt/pull/4271

News

Announcing Rust 1.44.1
blog.rust-lang.org

Writing Non-Trivial Macros in Rust
adventures.michaelfbryan.com

Diving into Rust with a CLI
kbknapp.dev

Rust for Data-Intensive Computation
materialize.io

3K, 60fps, 130ms: achieving it with Rust
blog.tonari.no

Rust concurrency: the archetype of a message-passing bug.
medium.com/@polyglot_factotum

How to Design For Panic Resilience in Rust
towardsdatascience.com

GitHub Action for binary crates installation
svartalf.info

Managing Rust bloat with Github Actions
tomforb.es

A multiplayer board game in Rust and WebAssembly
www.mattkeeter.com

Im bad at unsafe {}
djugei.github.io

SIMD library plans
vorner.github.io

Tips for Faster Rust Compile Times
endler.dev

Rust Analyzer Changelog #30
rust-analyzer.github.io

Building A Blockchain in Rust & Substrate: A Step-by-Step Guide for Developers
hackernoon.com

Dart and Rust: the async story
dev.to

Decode a certificate
dev.to

Four Years of Rust At OneSignal
onesignal.com

How Rust Lets Us Monitor 30k API calls/min
blog.bearer.sh

How to use C++ polymorphism in Rust
medium.com/swlh

Implementing a Type-safe printf in Rust
willcrichton.net

Introduction to Rust for Node Developers
dev.to

The programming language that wants to rescue the world from dangerous code
www.protocol.com

Property-based testing in Rust with Proptest
blog.logrocket.com

Rust at CNCF
www.cncf.io

Rust's Huge Compilation Units
pingcap.com

RustHorn: CHC-Based Verification for Rust Programs
link.springer.com

Shipping Linux binaries that don't break with Rust
saarw.github.io

Some examples of Rust Lifetimes in a struct
dev.to

Static PIE and ASLR for the x86_64-unknown-linux-musl Target
harald.hoyer.xyz

Three bytes to an integer
dev.to

Using Rust to Delete Gitignored Cruft
www.forrestthewoods.com

Tour of Rust - Chapter 8 - Smart Pointers
tourofrust.com

Thread-local Storage - Part 13 of Making our own executable packer
fasterthanli.me

RISC-V OS using Rust - Chapter 11
osblog.stephenmarz.com

Zero To Production #2: Learn By Building An Email Newsletter
www.lpalmieri.com

[video] Crust of Rust: Smart Pointers and Interior Mutability
www.youtube.com

[video] CS 196 at Illinois
www.youtube.com

[video] Ask Me Anything with Felix Klock
www.youtube.com

[video] Rust Stream: The Guard Pattern and Interior Mutability
www.youtube.com

Crate of the week: diskonaut

This week's crate is diskonaut, a disk usage explorer.

This week in Rust #345 — 30 jun 2020

https://this-week-in-rust.org/blog/2020/06/30/this-week-in-rust-345/

News

A practical guide to async in Rust
blog.logrocket.com

Secure Rust Guidelines - ANSSI (National Cybersecurity Agency of France)
anssi-fr.github.io

Faster Rust development on AWS EC2 with VSCode
dev.to

Rust verification tools
alastairreid.github.io

Examining ARM vs X86 Memory Models with Rust
www.nickwilcox.com

Disk space and LTO improvements
blog.rust-lang.org

Building a faster CouchDB View Server in Rust
www.garrensmith.com

Implementing a Job queue with SQLx and Postgres
cetra3.github.io

Rust + Actix + CosmosDB (MongoDB) tutorial api
dev.to

Extremely Simple Rust Rocket Framework Tutorial
frogtok.com

Build a Smart Bookmarking Tool with Rust and Rocket
developers.facebook.com

A Future is a Suspending Scheduler
nikhilism.com

Cross building Rust GStreamer plugins for the Raspberry Pi
www.collabora.com

xi-editor retrospective
raphlinus.github.io

This month in my Database project written in Rust
alex-dukhno.github.io

A Few More Reasons Rust Compiles Slowly
pingcap.com

Fixing Rust's test suite on RISC-V
www.codethink.co.uk

Protobuf code generation in Rust
dev.to

Tracking eye centers location with Rust & OpenCV
www.blog.nodrama.io

Using rust, blurz to read from a BLE device
dev.to

rust-analyzer changelog #31
rust-analyzer.github.io

IntelliJ Rust Changelog #125
intellij-rust.github.io

[video] Manipulating ports, virtual ports and pseudo terminals - Rust Wrocław Webinar
www.youtube.com

[video] Rust Stream: Iterators
www.youtube.com

Crate of the week: print_bytes

This week's crate is print_bytes, a library to print arbitrary bytes to a stream as losslessly as possible.

This week in Rust #346 — 08 jul 2020

https://this-week-in-rust.org/blog/2020/07/08/this-week-in-rust-346/

Updates from core

add format_args_capture feature
rust-lang/rust/pull/73670

don't implement Fn* traits for #[target_feature] functions
rust-lang/rust/pull/73306

fix wasm32 being broken due to a NodeJS version bump
rust-lang/rust/pull/73885

handle macro_rules! tokens consistently across crates
rust-lang/rust/pull/73569

implement slice_strip feature
rust-lang/rust/pull/73414

make likely and unlikely const, gated by feature const_unlikely
rust-lang/rust/pull/73778

optimise fast path of checked_ops with unlikely
rust-lang/rust/pull/73938

provide more information on duplicate lang item error.
rust-lang/rust/pull/73449

remove TypeckTables::empty(None) and make hir_owner non-optional.
rust-lang/rust/pull/73751

remove unnecessary release from Arc::try_unwrap
rust-lang/rust/pull/74025

serialize all foreign SourceFiles into proc-macro crate metadata
rust-lang/rust/pull/73706

stabilize #[track_caller].
rust-lang/rust/pull/72445

use WASM's saturating casts if they are available
rust-lang/rust/pull/73724

use Spans to identify unreachable subpatterns in or-patterns
rust-lang/rust/pull/73973

Update the rust-lang/llvm-project submodule to include AVR fixes recently merged
rust-lang/rust/pull/73658

mir-opt: Fix mis-optimization and other issues with the SimplifyArmIdentity pass
rust-lang/rust/pull/73949

added .collect() into String from Box<str>
rust-lang/rust/pull/72688

impl From<char> for String
rust-lang/rust/pull/73466

linker: create GNU_EH_FRAME header by default when producing ELFs
rust-lang/rust/pull/73564

resolve: disallow labelled breaks/continues through closures/async blocks
rust-lang/rust/pull/73726

ship rust analyzer
rust-lang/rust/pull/72978

chalk: add type outlives goal
rust-lang/chalk/pull/551

chalk: allow printing lifetime placeholders
rust-lang/chalk/pull/557

chalk: support for ADTs
rust-lang/chalk/pull/524

hashbrown: add RawTable::erase and remove
rust-lang/hashbrown/pull/171

hashbrown: expose RawTable::try_with_capacity
rust-lang/hashbrown/pull/174

hashbrown: improve RawIter re-usability
rust-lang/hashbrown/pull/175

libc: add a bunch of constants and functions which were missing on Android
rust-lang/libc/pull/1795

libc: add more WASI libc definitions.
rust-lang/libc/pull/1811

libc: declare seekdir and telldir for WASI.
rust-lang/libc/pull/1804

stdarch: fix or equals integer comparisons
rust-lang/stdarch/pull/872

cargo: write GNU tar files, supporting long names.
rust-lang/cargo/pull/8453

crates.io: use default branch alias instead of "master"
rust-lang/crates.io/pull/2601

clippy: added restriction lint: pattern-type-mismatch
rust-lang/rust-clippy/pull/4841

clippy: suggest Option::map_or(_else) for if let Some { y } else { x }
rust-lang/rust-clippy/pull/5301

rustfmt: do not duplicate const keyword on parameters
rust-lang/rustfmt/pull/4294

rustfmt: do not remove fn headers (e.g., async) on extern fn items
rust-lang/rustfmt/pull/4291

rustfmt: pick up comments between trait where clause and open block
rust-lang/rustfmt/pull/4292

News

Announcing Rustup 1.22.0
blog.rust-lang.org

Ownership of the standard library implementation
blog.rust-lang.org

Compiler Team 2020-2021 Roadmap Meeting Minutes
rust-lang.github.io

Back to old tricks ..(or, baby steps in Rust)
donsbot.wordpress.com

Small strings in Rust
fasterthanli.me

Choosing a Rust web framework, 2020 edition
www.lpalmieri.com

Writing Interpreters in Rust: a Guide
pliniker.github.io

Transpiling A Kernel Module to Rust: The Good, the Bad and the Ugly
immunant.com

Bad Apple!! and how I wrote a Rust video player for Task Manager!!
www.azabani.com

Boa release v0.9 and make use of Rust's measureme
boa-dev.github.io

RiB (Rust in Blockchain) Newsletter #13
rustinblockchain.org

7 Things I learned from Porting a C Crypto Library to Rust
sharpend.io

This Month in Rust GameDev #11 (June 2020)
rust-gamedev.github.io

AWS Lambda with Rust
blog.knoldus.com

Writing a winning 4K intro in Rust
www.codeslow.com

Ringbahn II: the central state machine
without.boats

Bastion floating on Tide - Part 2
blog.bastion.rs

Porting Godot Games To Rust (Part 1)
paytonrules.com

Image decay as a service
fasterthanli.me

IntelliJ Rust Changelog #125
intellij-rust.github.io

Abstracting away correctness
fasterthanli.me

Rendering in Rust
www.zerotoga.me

Super hero Rust fuzzing
blog.firosolutions.com

What Is a Dangling Pointer?
medium.com/swlh

Simple Rocket Web Framework Tutorial | POST Request
frogtok.com

Adventures of OS - System Calls
osblog.stephenmarz.com

Allocation API, Allocators and Virtual Memory
notes.iveselov.info

Cargo [features] explained with examples
dev.to

Concurrency Patterns in Embedded Rust
ferrous-systems.com

Getting started with WebAssembly and Rust
blog.logrocket.com

How to Write a Stack in Rust
dev.to

Implementing WebSockets in Rust
subhojit777.in

rust-analyzer changelog 32
rust-analyzer.github.io

Rust for JavaScript Developers - Functions and Control Flow
www.sheshbabu.com

Rust: The New LLVM
willcrichton.net

Using Rust and WebAssembly to Process Pixels from a Video Feed
dev.to

WebAssembly with Rust and React (Using create-react-app)
dev.to

[Portuguese] Aprendendo Rust: 01 - Hello World
dev.to

[audio] Mun
rustacean-station.org

[audio] Rust and machine learning #3 with Alec Mocatta (Ep. 109)
datascienceathome.com

[video] Authentication Service in Actix - Part 1: Configuration
www.youtube.com

[video] Rust FLTK gui tutorial
www.youtube.com

Crate of the week: suckit

This week's crate is suckit, a tool to recursively download a website.

This week in Rust #347 — 14 jul 2020

https://this-week-in-rust.org/blog/2020/07/14/this-week-in-rust-347/

Updates from core

shrink ParamEnv to 16 bytes
rust-lang/rust/pull/73978

stabilize const mem::forget
rust-lang/rust/pull/73887

typeck: adding type information to projection
rust-lang/rust/pull/73870

clippy: some accuracy lints for floating point operations
rust-lang/rust-clippy/pull/5443

correctly mark the ending span of a match arm
rust-lang/rust/pull/74125

only allow repr(i128/u128) on enum
rust-lang/rust/pull/74109

hide &mut self methods from Deref in sidebar if there are no DerefMut impl for the type
rust-lang/rust/pull/74107

only add CFGuard on windows-msvc targets
rust-lang/rust/pull/74103

add VecDeque::range* methods
rust-lang/rust/pull/74099

add read_exact_at and write_all_at to WASI's FileExt
rust-lang/rust/pull/74076

clippy: new lint: match_like_matches_macro
rust-lang/rust-clippy/pull/5769

Optimize is_ascii for str and [u8]
rust-lang/rust/pull/74066

arch: added f32 and f64 unaligned stores and loads from avx512f set
rust-lang/stdarch/pull/873

hashbrown: add HashSet::drain_filter method
rust-lang/hashbrown/pull/179

News

Announcing Rustup 1.22.1
blog.rust-lang.org

Lang team design meeting: path to membership
blog.rust-lang.org

Perspective on Rust Community Moderation
www.reddit.com

Programming Servo: the bird’s-eyes view
medium.com/programming-servo

Faster Integer Parsing (Rust port)
rust-malaysia.github.io

Learning Rust: Let's Build a Parser
codeandbitters.com

nnnoiseless: porting audio code from C to rust
jneem.github.io

The Soul of a New Debugger
nbaksalyar.github.io

String interners in Rust
dev.to

Target Feature vs Target CPU for Rust
www.nickwilcox.com

Rust and it's Orphan Rules
blog.mgattozzi.dev

Async Interview #8: Stjepan Glavina
smallcultfollowing.com

Using RabbitMQ in Rust
www.zupzup.org

Creating a custom target
rust-embedded.github.io

Statically Sized Higher-kinded Polymorphism
blog.ielliott.io

Getting in and out of trouble with Rust futures
fasterthanli.me

Rust Analyzer Changelog #33
rust-analyzer.github.io

IntelliJ Rust Changelog #126
intellij-rust.github.io

This Month in Rust OSDev (June 2020)
rust-osdev.com

Cross-compiling Rust from ARM to x86-64
burgers.io

Writing Rust NIFs for Elixir With Rustler
simplabs.com

Geometric Constraint Solvers Part 1: Algebraic Expressions
adventures.michaelfbryan.com

A View of Async Memory Access in Rust
blog.haoxp.xyz

Building Canrun: A Statically Typed Logic Programming Library for Rust (Part 1)
esimmler.com

Hunting down a non-determinism-bug in our Rust Wasm build
dev.to

Implementing the Clipper Chip Cipher in Rust
blog.yossarian.net

Linux Developers May Discuss Allowing Rust Code Within the Kernel
www.phoronix.com

Machine Learning in Rust and WebAssembly
www.secondstate.io

Moving from TypeScript to Rust/WebAssembly
nicolodavis.com

RSoC: Improving Drivers and Kernel - Part 1 (Largely io_uring)
www.redox-os.org

Rust and WebAssembly from Scratch: Hello World with Strings
depth-first.com

Rust for JavaScript Developers - Pattern Matching and Enums
www.sheshbabu.com

Rust is Surprisingly Good as a Server Language
stu2b50.dev

Some Learnings from Implementing a Normalizing Rust Representer
dev.to

Subclassing GTK Widgets in Rust
www.figuiere.net

[spanish] Rust es orientado a objeto?
emanuelpeg.blogspot.com

[audio] Fuzzing Rust with Shnatsel Podcast
medium.com/@social_62682

[video] Rust Loops Part 1: loop, break, continue
www.youtube.com

[video] Hitting A Bug in the Rust Compiler - While Writing A Boring Link Checker
www.youtube.com

[video] Two Sum Problem - Leet Code + Rust
www.youtube.com

[video] Rust + WebAssembly - EdgeXR @ Netlight
www.youtube.com

[video] Rust Meetup - Adding WASM Support to a Native Application (GameDev Edition)
www.youtube.com

Crate of the week: nnnoiseless

This week's crate is nnnoiseless, a filter for audio noise removal ported from C.

This week in Rust #348 — 21 jul 2020

https://this-week-in-rust.org/blog/2020/07/21/this-week-in-rust-348/

Updates from core

do not try fetching the ancestors of errored trait impls
rust-lang/rust/pull/74516

only skip impls of foreign unstable traits
rust-lang/rust/pull/74534

don't assign () to ! MIR locals
rust-lang/rust/pull/74411

some Symbol related improvements
rust-lang/rust/pull/74357

use ArrayVec in SparseBitSet
rust-lang/rust/pull/74310

change SymbolName::name to a &str
rust-lang/rust/pull/74214

enforce the static symbol order
rust-lang/rust/pull/74203

reduce the amount of interning and layout_of calls in const eval
rust-lang/rust/pull/74202

add Arguments::as_str()
rust-lang/rust/pull/74056

impl Index<RangeFrom> for CStr
rust-lang/rust/pull/74021

add (unchecked) indexing methods to raw (and NonNull) slices
rust-lang/rust/pull/73986

make some Option methods const
rust-lang/rust/pull/73930

use step_unchecked more liberally in range iter impls
rust-lang/rust/pull/73490

add core::task::ready! macro
rust-lang/rust/pull/70817

backtrace: use noop backends on Miri
rust-lang/backtrace-rs/pull/360

stdarch: update and revamp wasm32 SIMD intrinsics
rust-lang/stdarch/pull/874

stdarch: implement AVX512f floating point comparisons
rust-lang/stdarch/pull/869

stdarch: constify all x86 rustc_args_required_const intrinsics
rust-lang/stdarch/pull/876

make unreachable_unchecked a const fn
rust-lang/rust/pull/74459

cargo: fix freshness checks for build noscripts on renamed dirs
rust-lang/cargo/pull/8497

crates.io: generate API tokens with a secure RNG, store hashed
rust-lang/crates.io/pull/2637

add Ayu theme to rustdoc
rust-lang/rust/pull/71237

clippy: unnecessary_sort_by: avoid linting if key borrows
rust-lang/rust-clippy/pull/5756

News

crates.io security advisory
blog.rust-lang.org

Announcing Rust 1.45.0
blog.rust-lang.org

Traits working group 2020 sprint 3 summary
blog.rust-lang.org

Best Programming Languages to Learn in 2020(Rust Lang)
frogtok.com

Learn how to make a Sokoban game in Rust!
sokoban.iolivia.me

Clear explanation of Rust’s module system
www.sheshbabu.com

Checking status of Rust features
notes.iveselov.info

Programming Servo: just hanging around
medium.com/programming-servo

Efficient representation of Ultimate Tic Tac Toe using Rust
www.minimax.dev

Next Algorithm: Backtracking into the n Queens Problem
rust.graystorm.com

RSoC: improving drivers and kernel - part 3 (largely io_uring)
redox-os.org

Writing an asynchronous MQTT Broker in Rust - Part 2
hassamuddin.com

Rust Closures: Returning impl Fn for move closures
notes.iveselov.info

Writing a kernel driver with Rust
not-matthias.github.io

Rewriting FORTRAN Software In Rust
mckeogh.tech

Building and debugging a high-throughput daemon in Rust
brokenco.de

Why even unused data needs to be valid
www.ralfj.de

Three Architectures for a Responsive IDE
rust-analyzer.github.io

Packaging & Vending Production Rust Software - Windows
ebbflow.io

Async Rust, but less intimidating
dev.to

Rust Analyzer Changelog #34
rust-analyzer.github.io

Benchmarking gRPC in Rust & Go
medium.com/@Rustling_gopher

Efficient Parsing of JSON Record Sets in Rust
dev.to

Function Overloading in Rust
medium.com/swlh

Geometric Constraint Solvers Part 1: Algebraic Expressions
adventures.michaelfbryan.com

Haskell::From(Rust) I: Infix Notation and Currying
seanchen1991.github.io

How to Write a Queue in Rust
dev.to

Implementing a Workflow Graph
www.eltonpinto.me

Implementing flat_map in Rust
www.eltonpinto.me

IntelliJ Rust 0.3: New Macro Expansion Engine
blog.jetbrains.com

Low Level Stuff pt. 1 - Booting to 'Hello Rust!'
micouy.github.io

My Bet on Rust has been Vindicated
nbsoftsolutions.com

The Next Steps for Single Ownership and RAII
vale.dev

Popol: Minimal Non-Blocking I/O with Rust
cloudhead.io

Rust vs Go in Backend Web Development
qvault.io

Shipping Const Generics in 2020
without.boats

Two Beautiful Rust Programs
matklad.github.io

[Japanese] TCPが遅すぎる？QUICを使おう！
medium.com/nttlabs

[Spanish] Rust para embebidos
dev.to

[Portuguese] Aprendendo Rust: 03 - Variáveis
dev.to

[Portuguese] [video] Curso Rust 🦀 - Aula 4 - strings, match, sorteio, quizz
www.twitch.tv

[video] Boiled Down Crate 🦀: OnceCell
www.youtube.com

[video] Rust: What is Ownership and Borrowing
www.youtube.com

Crate of the week: pre

This week's crate is pre, a library for declaring and checking the assurance of precondition, useful for unsafe functions.

Hi!
We have plans to revive this channel.
Be tuned!