In which circumstances is C++ better than Rust?

• iroha

  4 411 6.9 Rust

  Iroha - A simple, enterprise-grade decentralized ledger

  

I can show you a real world example: https://github.com/hyperledger/iroha The C++ version compiles in 3 minutes. The rust version takes 15, and the Rust version isn't even complete yet. Moreover, the target dir grows to sometimes in excess of 50GiB, if you have debug symbols, several features and incremental compilation. C++ by contrast keeps it in the low 8GiB which allows me to mount it to tmpfs.

• dfdx

  22 1,607 8.7 Rust

  Deep learning in Rust, with shape checked tensors and neural networks

The next release of dfdx includes a CUDA device and implements many ops. The same dev created a new crate, cudarc, for a wrapper around CUDA toolkit.

• WorkOS

  workos.com sponsored

  The modern identity platform for B2B SaaS. The APIs are flexible and easy-to-use, supporting authentication, user identity, and complex enterprise features like SSO and SCIM provisioning.

  

• cudarc

  4 383 7.4 Rust

  Safe rust wrapper around CUDA toolkit

The next release of dfdx includes a CUDA device and implements many ops. The same dev created a new crate, cudarc, for a wrapper around CUDA toolkit.

• min-sized-rust

  101 7,431 6.2 Rust

  🦀 How to minimize Rust binary size 📦

If you're interested in all the various techniques, https://github.com/johnthagen/min-sized-rust has a comprehensive list.

• rtic

  14 1,609 8.8 Rust

  Real-Time Interrupt-driven Concurrency (RTIC) framework for ARM Cortex-M microcontrollers

  

RTIC is still going strong, they are working on a 2.0 release at the moment :). There's also now embassy which provides an async runtime (and a ton of other nice things) for embedded as well :)

• embassy

  70 4,324 9.9 Rust

  Modern embedded framework, using Rust and async.

  

RTIC is still going strong, they are working on a 2.0 release at the moment :). There's also now embassy which provides an async runtime (and a ton of other nice things) for embedded as well :)

• iced

  165 22,767 9.9 Rust

  A cross-platform GUI library for Rust, inspired by Elm

  

Iced for instance? Or just check https://www.areweguiyet.com/#ecosystem

• InfluxDB

  www.influxdata.com sponsored

  Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.

  

• tigerbeetle

  45 6,896 9.9 Zig

  The distributed financial transactions database designed for mission critical safety and performance.

  

One can doubt, but the systems like that are what I work on & read the most. There can be quite a bit of code in them that doesn't need unsafe, but that doesn't take into account the other half (or maybe more) which would. Things which take advantage of memory efficiency like drivers, memory allocators, schedulers, and databases are good examples of software which would have unsafe everywhere. Having experienced writing code that uses heavy unsafe in Rust, I would still prefer C++ (or really, C) if Rust wasn't explicitly the focus/target.

• pzero

  1 29 10.0

  A collection of tools for building concurrent systems

One can doubt, but the systems like that are what I work on & read the most. There can be quite a bit of code in them that doesn't need unsafe, but that doesn't take into account the other half (or maybe more) which would. Things which take advantage of memory efficiency like drivers, memory allocators, schedulers, and databases are good examples of software which would have unsafe everywhere. Having experienced writing code that uses heavy unsafe in Rust, I would still prefer C++ (or really, C) if Rust wasn't explicitly the focus/target.

• usync

  2 230 1.1 Rust

  Small, fast, synchronization primitives

One can doubt, but the systems like that are what I work on & read the most. There can be quite a bit of code in them that doesn't need unsafe, but that doesn't take into account the other half (or maybe more) which would. Things which take advantage of memory efficiency like drivers, memory allocators, schedulers, and databases are good examples of software which would have unsafe everywhere. Having experienced writing code that uses heavy unsafe in Rust, I would still prefer C++ (or really, C) if Rust wasn't explicitly the focus/target.

• rust

  2,682 92,831 10.0 Rust

  Empowering everyone to build reliable and efficient software.

  

You have very strange definition of “magic tricks”. Does dyn Trait magic or not? What about trait upcasting or generators?

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