Deleting pointer sometimes results in heap corruption

Question

I have a multithreaded application that runs using a custom thread pool class. The threads all execute the same function, with different parameters.

These parameters

Answer 1

Use smart pointers or other RAII to handle your memory.

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If you have access to boost or tr1 lib you can do something like this.

class ThreadPool
{
    typedef pair > Job;
    list< Job > jobList;
    HANDLE mutex;

public:
    void addJob(int jobid, const function& job) {
        jobList.push_back( make_pair(jobid, job) );
    }

    Job getNextJob() {    

        struct MutexLocker {
            HANDLE& mutex;
            MutexLocker(HANDLE& mutex) : mutex(mutex){ 
                WaitForSingleObject(mutex, INFINITE); 
            }
            ~MutexLocker() { 
                ReleaseMutex(mutex); 
            }
        };

        Job job = make_pair(-1, function());
        const MutexLocker locker(this->mutex);
        if (!this->jobList.empty()) {
            job = this->jobList.front();
            this->jobList.pop();
        }
        return job;
    }
};


void workWithDouble( double value );
void workWithInt( int value );
void workWithValues( int, double);

void test() {
    ThreadPool pool;
    //...
    pool.addJob( 0, bind(&workWithDouble, 0.1));
    pool.addJob( 1, bind(&workWithInt, 1));
    pool.addJob( 2, bind(&workWithValues, 1, 0.1));
}