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> Does the case for C++ in 2020 still exist? The question is the opposite: you have to prove to managers the benefit overcomes the risk of using a new language

> Does the case for C++ in 2020 still exist? The question is the opposite: you have to prove to managers the benefit overcomes the risk of using a new language. Rust is still not nearly stable nor popular enough for many fields. Go is a very different language with different goals and constraints, so the question does not really fit. > Rust and Go are much simpler to learn Go is a simple language, yes. Rust is a different beast with the same intrinsic complexity as C++. > can do everything that C++ Not exactly true (for the moment). Rust is lacking on const generics, HKTs and other details. > sane, simple and clean build systems/package managers That is not a big argument for the kind of projects is used for. And it is not true either, since nowadays there are several competing, modern package managers for C++ too (build2, Meson, Conan, modern CMake...). > not to mention async/await concurrency The async IO model has been available in many languages for many years, including C++. In the recent years several languages (including Rust and C++) are bringing syntax sugar to let the compiler create the state machines. But it is not the only way of doing async.

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ncmncm 6y ago
This from yesterday: https://news.ycombinator.com/item?id=24032305 https://news.ycombinator.com/item?id=24032305 Tl;dr: C++ is now and will remain the near-exclusive choice for essentially all of the highest-paid, most demanding work in medtech, fintech, CAE, HPC, telecom, and aerospace, for decades to come. Rust code will never be able to call into the very powerful libraries these applications depend on, because they are based on language features Rust will never have. No language other than C++ and Rust targets these applications. Very noisy Rust advocates here are inaudible elsewhere; many more people start using C++ in every week than the total who touch Rust in that week. That will not change soon. Rust is a much better language than C, Go, Java, C#, Visual Basic, Delphi, COBOL, Nim, and Dart, and much faster than Python, Ruby, and Perl. Advocates would better focus recruiting there than tilting at C++.
mlindner 6y ago
> The question is the opposite: you have to prove to managers the benefit overcomes the risk of using a new language. Rust is still not nearly stable nor popular enough for many fields. I'm not sure what you're saying. Rust 1.0 code compiles just fine in the most recent rust compiler. It's been stable since that 1.0 point and promises to continue being stable. C++ doesn't have a a stable ABI either.

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ncmncm 6y ago

This from yesterday: https://news.ycombinator.com/item?id=24032305 https://news.ycombinator.com/item?id=24032305 Tl;dr: C++ is now and will remain the near-exclusive choice for essentially all of the highest-paid, most demanding work in medtech, fintech, CAE, HPC, telecom, and aerospace, for decades to come. Rust code will never be able to call into the very powerful libraries these applications depend on, because they are based on language features Rust will never have. No language other than C++ and Rust targets these applications. Very noisy Rust advocates here are inaudible elsewhere; many more people start using C++ in every week than the total who touch Rust in that week. That will not change soon. Rust is a much better language than C, Go, Java, C#, Visual Basic, Delphi, COBOL, Nim, and Dart, and much faster than Python, Ruby, and Perl. Advocates would better focus recruiting there than tilting at C++.

mlindner 6y ago

> The question is the opposite: you have to prove to managers the benefit overcomes the risk of using a new language. Rust is still not nearly stable nor popular enough for many fields. I'm not sure what you're saying. Rust 1.0 code compiles just fine in the most recent rust compiler. It's been stable since that 1.0 point and promises to continue being stable. C++ doesn't have a a stable ABI either.