Is it a race condition?

Question

Two threads are executing a function named job, inside which they are incrementing a global variable. Will there be a race condition here?

int i = 0;

void *job(void *args)
{
    i += 1;
}

lorro · Answer

Yes, this might result in parallel access to the variable, which is a problem. To avoid that, it's recommended to declare i as std::atomic.