C ++ \ Cli Interlocked :: Add for doubles-无法获得Interlocked :: CompareExchange替代方法

这是先前问题的后续解决方案，该问题解决了带有线程局部变量的Parallel :: For语法带有局部变量的Parallel :: For

我尝试实现的书籍示例在整数上执行了Interlocked :: Add，但是我的实现需要加倍。在上面引用的代码中，我实现了Lock例程，但这不起作用。因此，我现在尝试将C＃示例转换为C ++ \ Cli类，然后我可以将其作为安全加倍Doubles Interlocked.CompareExchange进行调用。

TreadSafe.h

using namespace System;
using namespace System::Threading;

ref class ThreadSafe
{
private:
    double totalValue;

public:
    property double Total
    {
        double get()
        {
            return totalValue;
        }
    }
    double AddToTotal(double addend);

    // constructor
    ThreadSafe(void);
};

ThreadSafe.cpp

// constructor
ThreadSafe::ThreadSafe(void)
{
    totalValue = 0.0;
}

double ThreadSafe::AddToTotal(double addend)
{
    double initialValue, computedValue;
    do
    {
        initialValue = totalValue;
        computedValue = initialValue + addend;
    }
    while (initialValue != Interlocked::CompareExchange(totalValue, computedValue, initialValue));

    return computedValue;
}

然后，我在包含Parallel：For例程的类中进行调用，该例程也在上面引用的文章中列出。

DataCollection.cpp

// constructor
DataCollection::DataCollection(Form1^ f1) // takes parameter of type Form1 to give acces to variables on Form1
{
    this->f1 = f1;

    ts = gcnew ThreadSafe();
}

// initialize data set for parallel processing
void DataCollection::initNumbers(int cIdx, int gIdx)
{
    DataStructure^ number;
    numbers = gcnew List<DataStructure^>();

    for (int i = 0; i < f1->myGenome->nGenes; i++)
    {
// creates collection "numbers" with data to be processed in parallel
    }
}

// parallel-for summation of scores
double DataCollection::sumScore()
{
    Parallel::For<double>(0, numbers->Count, gcnew Func<double>(this, &DataCollection::initSumScore),
                                                gcnew Func<int, ParallelLoopState^, double, double>(this, &DataCollection::computeSumScore),
                                                gcnew Action<double>(this, &DataCollection::finalizeSumScore));
    return ts->Total;
}

// returns start value
double DataCollection::initSumScore()
{
    return 0.0;
}

// perform sequence alignment calculation
double DataCollection::computeSumScore(int k, ParallelLoopState^ status, double tempVal)
{
// calls several external methods, but for testing simplified to an assignment only

    tempVal += 1.0;

    return tempVal;
}

// locked addition
void DataCollection::finalizeSumScore(double tempVal)
{
    ts->AddToTotal(tempVal);
}

该代码可以编译并运行，但不会添加。它总是返回0。

因此，我假设我对C＃示例的翻译/实现不正确。怎么了？