use std::sync::Mutex;
fn main() -> Result<(), Box<dyn std::error::Error>> {
static PEDANTRY: Mutex<u64> = Mutex::new(0);
*PEDANTRY.lock()? += 1;
println!("{}", PEDANTRY.lock()?);
Ok(())
} use std::sync::Mutex;
fn main() -> Result<(), Box<dyn std::error::Error>> {
static PEDANTRY: Mutex<u64> = Mutex::new(0);
*PEDANTRY.lock()? += 1;
println!("{}", PEDANTRY.lock()?);
Ok(())
}And declaring a static variable inside a function, even if in main, smells.
static mut COUNTER: u32 = 0;
If on 2024 edition, you will additionally need
#![allow(static_mut_refs)]