将不同类型的向量传递给模板函数

Question

我收到的编译错误是

could not deduce template argument for 'std::vector<T*>&' from 'std::vector<_Ty>'

template <typename T> void foo(vector<T*>& a, int left, int right)
{
     ...
}

main()
{
     ...
     //declare and instantiate 3 vectors
     vector<int> intVector;

     foo(intVector, 0, 100);
     foo(doubleVector, 0, 100);
     foo(charVector, 0, 100);
     ...
}

Answer 1

int无法匹配T*。

将vector设为vector<int*>或将模板设为vector<T>。