Re:Announcing Rust 1.12.1
by rkangel on Friday October 21, 2016 @09:31AM
(#12760224)
It's difficult to answer this question with 'one main reason'. Rust is what you get if you build a language that is intended to operate in the same space as C and C++, but benefits from the last 30 years of advances in programming languages.
Some things that are better as a result of things that are hard to do right in C++:
* Compiler monitors ownership of memory
* Compiler monitors ownership across threads
* Generics aren't handled as templates, and you can explicitly describe support using things like * trait bounds
* Macros are useful but need to operate on something more like the AST rather than text tokens
* A richer type system can help you express much more in the types (Rust enums)
Some things that are better as a result of things that are hard to do right in C++:
* Compiler monitors ownership of memory
* Compiler monitors ownership across threads
* Generics aren't handled as templates, and you can explicitly describe support using things like * trait bounds
* Macros are useful but need to operate on something more like the AST rather than text tokens
* A richer type system can help you express much more in the types (Rust enums)