Rust

I'm learning Rust, and I'm going to write about it here what I learn and what I think about it. https://github.com/rytsh/rust00

Check this link for intro https://www.rust-lang.org/learn

• https://doc.rust-lang.org/book/
• https://doc.rust-lang.org/reference/
• https://doc.rust-lang.org/rust-by-example/
• https://doc.rust-lang.org/cargo/index.html

Installation

curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh

For update use rustup update.

After that it is adding in your env values in .bashrc. Need to refresh your terminal.

01 - Hello World

fn main() {
    println!("Hello, world!");
}

Create executable file with this command:

# generate executable file with name hello
rustc hello.rs

Extension of Rust files is .rs.

For generating Obj file

# generate obj file with name hello.o
rustc --emit=obj hello.rs

Cargo New Package

cargo new hello_cargo

This will create a new directory with the name hello_cargo and a new Rust package inside it.

cd hello_cargo

Run cargo build

cargo build

It is creating under the target/debug directory.

Use cargo build --release for release build.

--bin is for binary and --lib is for library use when creating new package.

cargo new hello_bin --bin
cargo new hello_lib --lib

Default work like --bin.

Clear artifacts with cargo clean.

u128

Rust has 128 bit signed and unsigned integers.