You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: check.rs
    path of file: ./repos/incubator-teaclave-sgx-sdk/sgx_tstd/src/sys_common/condvar
    
    the code of the file until where you have to start completion: use crate::ptr;
use crate::sync::atomic::{AtomicP
    
    pub fn verify(&self, mutex: &MovableMutex) {
        let addr = mutex.raw() as *const imp::Mutex as *const () as *mut _;
        // Relaxed is okay here because we never read through `self.addr`, and only use it to
        // compare addresses.
        match self.addr.compare_exchange(
            ptr::null_mut(),
            addr,
            Ordering::Relaxed,
            Ordering::Relaxed,
        ) {
            Ok(_) => {}               // Stored the address
            Err(n) if n == addr => {} // Lost a race to store the same address
            _ => panic!("attempted to use a condition variable with two mutexes"),
        }
    }