extern crate rand_core;
extern crate rand_pcg;
#[macro_use]
extern crate lazy_static;

use rand_pcg::Pcg32 as Rng;
use rand_core::{SeedableRng, RngCore};
use std::sync::Mutex;

lazy_static! {
    static ref rng: Mutex<Rng> = Mutex::new(Rng::seed_from_u64(0));
}

#[no_mangle]
pub extern fn call_pcg32() -> u32 {
    rng.lock().unwrap().next_u32()
}