cppAsync race conditionHard

Unexpected behavior with static objects in multi-file CPP

Time: 0:00

BugFind the bug and fix the code

What it should do

Retrieve the value from a static object. Example: getValue() -> int

What happens instead

Program exhibits inconsistent behavior or crashes at runtime.

#include <iostream>

// file1.cpp
static int value = 10;

int getValue() {
    return value;
}

// file2.cpp
#include <iostream>
static int anotherValue = getValue();

int main() {
    std::cout << anotherValue << std::endl;
    return 0;
}

Test a custom input to verify an edge case (e.g. empty lists, negative numbers, duplicates).

⏱️0:00

Hints

🏆 0 hints = Flawless Solve

Think & Test Cooldown

2:00 remaining

Take a moment to read the bug symptom and trace the code with Run & Check before unlocking Hint 1.

Hint 2

Unlocks after Hint 1

Hint 3

Unlocks after Hint 2

This bug belongs to the async and race conditions pattern

A missing await, unbuffered channel deadlocks, ConcurrentModificationException, and data races under load.

Learn the async and race conditions pattern Step through your own code

<iframe src="https://trybughunt.com/embed/9b7e27df-977f-4642-b506-4915d905c865" title="Debugging challenge: Unexpected behavior with static objects in multi-file CPP" width="100%" height="580" loading="lazy" style="border:1px solid #d4d4d8;border-radius:12px;max-width:760px"></iframe> <p style="font-size:14px">Debugging challenge from <a href="https://trybughunt.com/challenges/9b7e27df-977f-4642-b506-4915d905c865">TryBugHunt</a></p>

#include <iostream> // file1.cpp static int value = 10; int getValue() { return value; } // file2.cpp #include <iostream> static int anotherValue = getValue(); int main() { std::cout << anotherValue << std::endl; return 0; }

Unexpected behavior with static objects in multi-file CPP

What it should do

What happens instead

More async and race conditions to practise

Unexpected behavior with static objects in multi-file CPP

What it should do

What happens instead

More async and race conditions to practise