vector – Page 3 – Tarik Billa

How do I get a slice of a Vec in Rust?

December 24, 2022 by Tarik

The documentation for Vec covers this in the section titled “slicing”. You can create a slice of a Vec or array by indexing it with a Range (or RangeInclusive, RangeFrom, RangeTo, RangeToInclusive, or RangeFull), for example: fn main() { let a = vec![1, 2, 3, 4, 5]; // With a start and an end println!(“{:?}”, … Read more

Best way to concatenate vectors in Rust

November 13, 2022 by Tarik

The structure std::vec::Vec has method append(): fn append(&mut self, other: &mut Vec<T>) Moves all the elements of other into Self, leaving other empty. From your example, the following code will concatenate two vectors by mutating a and b: fn main() { let mut a = vec![1, 2, 3]; let mut b = vec![4, 5, 6]; … Read more