C++/CLI中的未解析令牌

Question

我正在为我创建的某个类获取链接器错误。

1>Dict.obj : error LNK2020: unresolved token (06000006) TwoKeyDict<System::String ^,int>::.ctor 
1>Dict.obj : error LNK2020: unresolved token (06000007) TwoKeyDict<System::String ^,int>::Get 
1>Dict.obj : error LNK2020: unresolved token (06000008) TwoKeyDict<System::String ^,int>::Put 
1>Dict.obj : error LNK2020: unresolved token (06000009) TwoKeyDict<int,int>::.ctor 
1>Dict.obj : error LNK2020: unresolved token (0600000A) TwoKeyDict<int,int>::Get 
1>Dict.obj : error LNK2020: unresolved token (0600000B) TwoKeyDict<int,int>::Put 

这些都是在我尝试使用类的所有地方。下面是类代码：

TwoKeyDict.h

#pragma once 

using namespace System::Collections::Generic; 

template<class K, class V> 
public ref class TwoKeyDict 
{ 
private: 
    Dictionary<K, Dictionary<K, V>^>^ underlyingDict; 
public: 
    TwoKeyDict(); 
    V Get(K key1, K key2); 
    void Put(K key1, K key2, V value); 
}; 

TwoKeyDict.cpp

#include "StdAfx.h" 
#include "TwoKeyDict.h" 

template<class K, class V> 
TwoKeyDict<K, V>::TwoKeyDict() { 
    underlyingDict = gcnew Dictionary<K, Dictionary<K, V>^>(); 
} 

template<class K, class V> 
V TwoKeyDict<K, V>::Get(K key1, K key2) { 
    if (underlyingDict->ContainsKey(key1)) { 
     if (underlyingDict[key1]->ContainsKey(key2)) { 
      return underlyingDict[key1][key2]; 
     } 
    } 

    return nullptr; 
} 

template<class K, class V> 
void TwoKeyDict<K, V>::Put(K key1, K key2, V value) { 
    if (underlyingDict->ContainsKey(key1)) { 
     Dictionary<K, V>^>^ secondLayerDict = underlyingDict[key1]; 
     if (secondLayerDict->ContainsKey(key2)) { 
      secondLayerDict[key2] = value; 
     } else { 
      secondLayerDict->Add(key2, value); 
     } 
    } else { 
     Dictionary<K, V>^>^ secondLayerDict = gcnew Dictionary<K, V>^>(); 
     secondLayerDict->Add(key2, value); 
     underlyingDict->Add(key1, secondLayerDict); 
    } 
} 

在地方，我试图用它我只是在做的#include“ TwoKeyDict.h“

Answer 1

模板进入头文件，所有用户都可以看到实现。

您确定要使用模板而不是通用？看起来你并没有从专业化中获益。