This repository serves as a personal knowledge base, documenting the journey from beginner to advanced Rustacean, and is intended as a quick reference guide for Rust concepts. This Repo Also Contains Potential Interview Questions

Basics of rust contains topics like variables, rust definition, syntax, etc.

Rust is a relatively new programming language which had its 1.0 release in 2015:

1. Rust is a statically compiled language in a similar role as C++
2. Rust Compiler uses LLVM as its backend.
3. Rust supports many platforms and architectures like:
   • x86, ARM, WebAssembly, etc
   • Linux, Mac, Windows, etc

• Functions are introduced with fn.
• Blocks are delimited by curly braces like in C and C++.
• The main function is the entry point of the program.
• Rust has hygienic macros, println! is an example of this.
• Rust strings are UTF-8 encoded and can contain any Unicode character.

Rust is used for a wide range of devices:

• firmware and boot loaders,
• smart displays,
• mobile phones,
• desktops,
• servers.

rustc: the Rust compiler which turns .rs files into binaries and other intermediate formats.

rustc uses LLVM as its backend

• Compile time memory safety.

  • No uninitialized variables.
  • No memory leaks (mostly, see notes).
  • No double-frees.
  • No use-after-free.
  • No NULL pointers.
  • No forgotten locked mutexes.
  • No data races between threads.
  • No iterator invalidation.

• No undefined behavior at runtime.

  • Array access is bounds checked.
  • Integer overflow is defined (panic or wrap-around).

• Modern language features. Rust is built with all the experience gained in the last decades.

  • Enums and pattern matching.
  • Generics.
  • No overhead FFI.
  • Zero-cost abstractions.