r4cppp | Rust for C++ programmers
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kandi X-RAY | r4cppp Summary
Rust for C++ programmers
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QUESTION
I'm currently in the progress of learning Rust. I'm mainly using The Rust Programming Language book and this nice reference which relates Rust features/syntax to C++ equivalents.
I'm having a hard time understanding where the core language stops and the standard library starts. I've encountered a lot of operators and/or traits which seems to have a special relationship with the compiler. For example, Rust has a trait
(which from what I understand is like an interface) called Deref
which let's a type implementing it be de-referenced using the *
operator:
ANSWER
Answered 2020-Apr-04 at 21:07When you're not using std
, you rely on core
, which is a subset of the std
library which is always (?) available. This is what's called a no_std
environment, which is commonly used for some types of "embedded" programming. You can find more about no_std
in the Rust Embedded book, including some guidance on how to get started with no_std
programming.
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Rust is installed and managed by the rustup tool. Rust has a 6-week rapid release process and supports a great number of platforms, so there are many builds of Rust available at any time. Please refer rust-lang.org for more information.
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