C ++类向量推回错误

我是C ++的新手，我使用G ++编译器（Ubuntu 4.8.1-2ubuntu1〜12.04）4.8.1
我尝试实现无向加权图。由Edges和Graph这两个类组成。但是编译器给我这个错误

编译器给出此错误

/usr/include/c++/4.8/ext/new_allocator.h：实例化'void __gnu_cxx :: new_allocator <_Tp> :: construct（_Up *，_Args && ...）[with _Up = UNDIR_W_EDGE; _Args = {const UNDIR_W_EDGE＆}; _Tp = UNDIR_W_EDGE]'：/usr/include/c++/4.8/bits/alloc_traits.h:254:4：“静态类型名称std :: enable_ifAlloc> :: _ construct_helper <_Tp，_Args> :: value，void>： ：type std :: allocator_traits <_Alloc> :: _ S_construct（_Alloc＆，_Tp *，_Args && ...）[with _Tp = UNDIR_W_EDGE; _Args = {const UNDIR_W_EDGE＆}; _Alloc = std :: allocator; 类型名称std :: enable_ifAlloc> :: _ construct_helper <_Tp，_Args> :: value，void> :: type = void]'/usr/include/c++/4.8/bits/alloc_traits.h:393:57：从'static必需注释类型（_S_construct（__ a，__p，（forward <_Args>）（std :: allocator_traits :: construct :: __ args）... ））std :: allocator_traits <_Alloc> :: construct（_Alloc＆，_Tp *，_Args && ...）[with _Tp = UNDIR_W_EDGE; _Args = {const UNDIR_W_EDGE＆}; _Alloc = std :: allocator; decltype（_S_construct（__ A，__p，（forward <_Args>）（std :: allocator_traits :: construct :: __ args）...））=]'/usr/include/c++/4.8/bits/stl_vector.h:906 ：34：从'void std :: vector <_Tp，_Alloc> :: push_back（const value_type＆）[需要_Tp = UNDIR_W_EDGE; _Alloc = std :: allocator; std :: vector <_Tp，_Alloc> :: value_type = UNDIR_W_EDGE]'../src/GRAPH.h:31:5：从'void GRAPH :: addEdge（const Edge＆）[with Edge = UNDIR_W_EDGE]'中需要。 /src/main.cpp:32:13：从此处需要/usr/include/c++/4.8/ext/new_allocator.h:120:4：错误：没有匹配的函数可以调用'UNDIR_W_EDGE :: UNDIR_W_EDGE（const UNDIR_W_EDGE＆） '{::Args>（ _ args）...）; }

代码

GRAPH.h文件

#include "vector"

template <typename Edge>
class GRAPH {
 private:
 // Implementation-dependent code
int Vcnt;
int Ecnt;
std::vector<std::vector< Edge > > adj;
 public:
GRAPH(int x):Vcnt(x),Ecnt(0) {

    adj.resize(Vcnt);
}
 virtual ~GRAPH();
 virtual int V() const;
 virtual int E() const;
 virtual void addEdge(const Edge &e){
    adj[e.V()].push_back(e);
    adj[e.W()].push_back(e);
    Ecnt++;
 };
 virtual std::vector< Edge > adjIterator(int) const;
};

UNDIRWEDGE.h文件

 class UNDIR_W_EDGE {
    int v,w;
    float weight;

    public:
     UNDIR_W_EDGE(int v, int w, float weight);
     UNDIR_W_EDGE(UNDIR_W_EDGE &);
     virtual ~UNDIR_W_EDGE();
     virtual int V()const;
     virtual int W()const;
     virtual float WEIGHT()const;
     virtual int CompareTo(UNDIR_W_EDGE e)const;
    };

在UNDIRWEDGE.cpp中

inline int UNDIR_W_EDGE::CompareTo(UNDIR_W_EDGE e)const{
if(this->weight > e.weight) return 1;
else if (this->weight < e.weight)return -1;
else                            return 0;
}  

在main.cpp中

GRAPH<UNDIR_W_EDGE> g(10);
UNDIR_W_EDGE e(0,7,0.0);
g.addEdge(e);