模板类 出现undefined reference to错误

[yadain]

linearlist.cpp

#include "linearlist.h"
template <class T>
LinearList<T>::LinearList(int nMaxSize)
{
   nMaxListSize = nMaxSize;
   length = 0;
   element = new T[nMaxSize];
}
template <class T>
LinearList<T>::~LinearList()
{
  delete []element;
}
template <class T>
bool LinearList<T>::IsEmpty()const
{
  return length==0;
}
template <class T>
int LinearList<T>::GetLength()const
{
  return length;
}
template <class T>
bool LinearList<T>::Find(int k,T& x)const
{
  if(k<1||k>length)
   return false;
  x = element[k-1];
  return true;
}
template <class T>
int LinearList<T>::Search(const T& x)const
{
  for(int i=0;i<length;i++)
  {
     if(element[i]==x)
        return ++i;
  }
  return 0;
}
template <class T>
bool LinearList<T>::Delete(int k,T &x)
{
  if(Find(k,x))
  {
    for(int i=k;i<length;i++)
    {
      element[i-1]=element[i];
    }
    length--;
    return true;
  }
  return false;
}
template <class T>
bool LinearList<T>::Insert(int k,const T &x)
{
  if(k<0||k>length)
       return false;
  if(length == nMaxListSize)
       return false;
  for(int i=length-1;i>=k;i--)
  {
    element[i+1] = element[i];
  }
  element[k] = x;
  length++;
  return true;
}
template <class T>
void LinearList<T>::OutPut(ostream &out) const
{
  for(int i=0;i<length;i++)
    cout<<element[i]<<" ";
}
template <class T>
ostream &operator<<(ostream &out,const LinearList<T> &x)
{
  x.OutPut(out);
 return out;
}

linearlist.h

#ifndef LINEARLIST_H
#define LINEARLIST_H
#include <iostream>
using namespace std;

template <class T> class LinearList;
template <class T>
ostream &operator<<(ostream &out,const LinearList<T> &x);

template <class T>
class LinearList
{
   public:
       LinearList(int nMaxSize=10);
       ~LinearList();
   public:
       bool IsEmpty()const;
       int  GetLength()const;
       bool Find(int k,T& x)const;
       int  Search(const T& x)const;
       bool Delete(int k,T& x);
       bool Insert(int k,const T& x);
       void OutPut(ostream &out)const;
   private:
      int length;
      int nMaxListSize;
      T   *element;
};
#endif

main.cpp

#include "linearlist.h"
int main(void)
{
   LinearList<int> list(5);
   list.Insert(0,1);
   list.Insert(1,2);
   cout<<endl;
   cout<<list<<endl;
   return 0;
}

makefile

TARGET=list
OBJECT=main.o linearlist.o 
all:$(TARGET)
$(TARGET):$(OBJECT)
	g++ -o $(TARGET) $(OBJECT)
linearlist.o:linearlist.cpp linearlist.h
	g++ -c linearlist.cpp
main.o:main.cpp linearlist.h
	g++ -c main.cpp
.PHONY:clean
clean:
	rm -f $(TARGET) $(OBJECT)

错误
main.cpp:(.text+0x1b): undefined reference to `LinearList<int>::LinearList(int)'
main.cpp:(.text+0x3f): undefined reference to `LinearList<int>::Insert(int, int const&)'
main.cpp:(.text+0x63): undefined reference to `LinearList<int>::Insert(int, int const&)'
main.cpp:(.text+0x8b): undefined reference to `std::basic_ostream<char, std::char_traits<char> >& operator<< <int>(std::basic_ostream<char, std::char_traits<char> >&, LinearList<int> const&)'
main.cpp:(.text+0xac): undefined reference to `LinearList<int>::~LinearList()'
main.cpp:(.text+0xc7): undefined reference to `LinearList<int>::~LinearList()'
collect2: ld returned 1 exit status

望高手指教

[aweer]

没有哪几个编译器可以用分离编译，还是用包含编译吧

.h:
#ifndef XXX_H
#define XXX_H
....
....
#include"cpp"
#endif

cpp:
#ifndef XXX_CPP
#define XXX_CPP
#include".h"
..
...
#endif

main:
#include"h"
..
...

[pengzhixi]

请不要分离编译。

[老吴笔记]

#include "linearlist.h"
这是哪个?这样没法看

[昵称很不好取]

模板类不支持分离实现，你把声明和实现文件放一起吧
或是使用export关键字，但需要编译器支持这个关键字
或者在用到这个类的时候把.cpp文件也include进来

[YT158828]

template <class T>
bool LinearList<T>::Find(int k,T& x)const
{
if(k<1||k>length)
return false;
x = element[k-1];
return true;
}

const 函数,不可以改变参数值..这个似乎有问题

[tyzqqq]

[gaaracom]

不能分离编译亮了！刚才还为此苦恼！