c++ - 从 boost::thread 调用模板函数时为 "unresolved overloaded function type"

Question

我正在尝试使用 boost 的线程工具就地实现快速排序。不幸的是，当我的函数没有重载时，我收到关于“”的错误。代码如下:

#include <iostream>
#include <fstream>
#include <vector>
#include <string>
#include <boost/thread.hpp>

template<typename T>
void quicksortInPlace(std::vector<T> &array,
                      size_t left,
                      size_t right,
                      size_t pivot)
{
    size_t storeIndex = left;
    // ...
    if (left < storeIndex)
    {
        boost::thread lessThread(quicksortInPlace,
                                 array,
                                 left+0,
                                 storeIndex-1,
                                 storeIndex-1);
        lessThread.join();
    }
    if (right > storeIndex)
    {
        boost::thread moreThread(quicksortInPlace,
                                 array,
                                 storeIndex+1,
                                 right+0,
                                 storeIndex+1);
        moreThread.join();
    }

}


int main()
{
    std::vector<std::string> stuff;
    stuff.push_back("two");
    stuff.push_back("one");
    size_t left  = 0;
    size_t right = 1;
    size_t pivot = 0;
    quicksortInPlace(stuff,left,right,pivot);
    return 0;
}

我收到以下编译错误(使用 STLfilt 清理 g++ 输出:gfilt -width:o main.cpp)

BD Software STL Message Decryptor v3.10 for gcc 2/3/4
main.cpp: In function ‘void quicksortInPlace(vector<string> &, size_t, size_t, size_t)’:
main.cpp:56:   instantiated from here
main.cpp:36: error: No match for ‘boost::thread::thread(<unresolved overloaded function type>, vector<string> &, size_t, size_t, size_t)’
main.cpp:41: error: No match for ‘boost::thread::thread(<unresolved overloaded function type>, vector<string> &, size_t, size_t, size_t)’

在这里，我使用了“left+0”而不是 left，所以错误不是这种形式

main.cpp:41: error: No match for ‘boost::thread::thread(<unresolved overloaded function type>, vector<string> &, size_t, size_t &, size_t)’

我怎样才能消除这种歧义？

Answer 1

必须是quicksortInPlace<T> .