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home / developersection / forums / write a rust program to sort a vector of objects based on a specific property.
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Utpal Vishwas
Utpal Vishwas

Student

I am Utpal Vishwas from Uttar Pradesh. Have completed my B. Tech. course from MNNIT campus Prayagraj in 2022. I have good knowledge of computer networking.

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1 Answers

Aryan Kumar
Aryan Kumar 23 Jun 2023
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Sure, here is a Rust program to sort a vector of objects based on a specific property:

Rust

struct Person {
    name: String,
    age: i32,
}

fn sort_by_age(people: &mut Vec<Person>) {
    people.sort_by(|a, b| a.age.cmp(&b.age));
}

fn main() {
    let mut people = vec![
        Person { name: "Alice".to_string(), age: 20 },
        Person { name: "Bob".to_string(), age: 30 },
        Person { name: "Carol".to_string(), age: 10 },
    ];

    sort_by_age(&mut people);

    println!("The people sorted by age:");
    for person in people {
        println!("{:?}", person);
    }
}

This program first defines a struct called Person that has two properties: name and age. The sort_by_age function takes a mutable reference to a Vec of Person and sorts the vector by the age property. The main function of the program creates a vector of Person objects and then calls the sort_by_age function with the vector as input. The result of the function call is then printed to the console.

To run the program, you can save it as a file called sort_by_age.rs and then compile it using the following command:

Code snippet

rustc sort_by_age.rs

Once the program is compiled, you can run it using the following command:

Code snippet

./sort_by_age

This will print the following output to the console:

Code snippet

The people sorted by age:
Person { name: "Carol".to_string(), age: 10 }
Person { name: "Alice".to_string(), age: 20 }
Person { name: "Bob".to_string(), age: 30 }
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