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#include <iostream>
#include <thread>
#include <mutex>
using namespace std;
//code
int value;
mutex valueMutex;
mutex coutMutex;
void fun1()
{
lock_guard<mutex> lg1(coutMutex);
cout << "fun 1 locks cout\n";
lock_guard<mutex> lg2(valueMutex);
cout << "fun 1 locks value\n";
}
void fun2()
{
lock_guard<mutex> lg1(valueMutex);
cerr << "fun 2 locks value\n";
lock_guard<mutex> lg2(coutMutex);
cout << "fun 2 locks cout\n";
}
int main()
{
thread t1(fun1);
fun2();
t1.join();
}
//=
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