rustHow to get the count of threads in Rust?

The thread::spawn function can be used to create threads in Rust. To get the count of threads, the thread::active_count function can be used.

use std::thread;

let thread_count = thread::active_count();
println!("Number of threads: {}", thread_count);

Output example

Number of threads: 1

The code above creates a variable thread_count and assigns it the value returned by the thread::active_count function. The println! macro is then used to print the value of thread_count to the console.

Code explanation

1. use std::thread; - imports the thread module from the std crate.
2. let thread_count = thread::active_count(); - creates a variable thread_count and assigns it the value returned by the thread::active_count function.
3. println!("Number of threads: {}", thread_count); - prints the value of thread_count to the console.

Helpful links

• std::thread - Documentation for the std::thread module.
• thread::active_count - Documentation for the thread::active_count function.

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