关于类模板问题？

BigSpoon

如下Stack类.h和.cpp:

1. template <typename T>
   
2. class Stack
   
3. {
   
4. private:
   
5.     enum { MAX = 10};
   
6.     int stackSize;
   
7.     T* items;
   
8.     int top;
   
9. public:
   
10.     Stack(int ss = MAX);
    
11.     Stack(const Stack& st);
    
12.     ~Stack() {delete [] items;}
    
13.     bool isEmpty();
    
14.     bool isFull();
    
15.     bool push(const T& item);
    
16.     bool pop(T & item);
    
17.     Stack & operator=(const Stack& st);
    
18. };

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1. template<typename T>
   
2. Stack<T>::Stack(int ss):stackSize(ss),top(0)
   
3. {
   
4.     items = new T[stackSize];
   
5. }
   
6. 
   
7. template<typename T>
   
8. Stack<T>::Stack(const Stack &st)
   
9. {
   
10.     stackSize = st.stackSize;
    
11.     top = st.top;
    
12.     items = new T[stackSize];
    
13.     for(int i = 0; i < top; i++){
    
14.         items[i] = st.items[i];
    
15.     }
    
16. }
    
17. 
    
18. template<typename T>
    
19. bool Stack<T>::isEmpty()
    
20. {
    
21.     return top == 0;
    
22. }
    
23. 
    
24. template<typename T>
    
25. bool Stack<T>::isFull()
    
26. {
    
27.     return top == MAX ;
    
28. }
    
29. 
    
30. template<typename T>
    
31. bool Stack<T>::push(const T &item)
    
32. {
    
33.     if(top < MAX){
    
34.         items[top++] = item;
    
35.         return true;
    
36.     }
    
37.     else
    
38.         return false;
    
39. }
    
40. 
    
41. template<typename T>
    
42. bool Stack<T>::pop(T &item)
    
43. {
    
44.     if(top > 0){
    
45.         item = items[--top];
    
46.         return true;
    
47.     }
    
48.     else
    
49.         return false;
    
50. }
    
51. template<typename T>
    
52. Stack<T> &Stack<T>::operator=(const Stack &st)
    
53. {
    
54.     if(this == &st) return *this;
    
55.     delete [] items;
    
56.     stackSize = st.stackSize;
    
57.     top = st.top;
    
58.     items = new T[stackSize];
    
59.     for(int i = 0; i < top; i++){
    
60.         items[i] = st.items[i];
    
61.     }
    
62.     return *this;
    
63. }

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主函数main如下：

1. #include <iostream>
   
2. #include <cstdlib>
   
3. #include <ctime>
   
4. 
   
5. #include "stack.h"
   
6. 
   
7. using namespace std;
   
8. const int Num = 10;
   
9. 
   
10. int main()
    
11. {
    
12.     srand(time(0));
    
13.     cout << "## input stack size: ";
    
14.     int stackSize;
    
15.     cin >> stackSize;
    
16.     Stack<const char *> st(stackSize);
    
17.     const char* in[Num]={
    
18.         "one","two","three","four","five",
    
19.         "six","seven","eight","nine","ten"
    
20.     };
    
21.     const char* out[Num];
    
22.     int processed = 0;
    
23.     int nextin = 0;
    
24.     while(processed < Num){
    
25.         if(st.isEmpty()){
    
26.             st.push(in[nextin++]);
    
27.         }else if(st.isFull()){
    
28.             st.pop(out[processed++]);
    
29.         }else if( rand() % 2 && nextin < Num){
    
30.             st.push(in[nextin++]);
    
31.         }else st.pop(out[processed++]);
    
32.     }
    
33.     for(int i = 0; i < Num; i++){
    
34.         cout << *out[i] <<endl;
    
35.     }
    
36.     return 0;
    
37. }

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现在编译出现这样的问题
1.:-1: error: symbol(s) not found for architecture x86_64；
2：:-1: error: linker command failed with exit code 1 (use -v to see invocation)
编译结果如下：

1. /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang++ -headerpad_max_install_names -stdlib=libc++ -Wl,-syslibroot,/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.11.sdk -mmacosx-version-min=10.7 -o class_template1 main.o stack.o   
   
2. Undefined symbols for architecture x86_64:
   
3.   "Stack<char const*>::pop(char const*&)", referenced from:
   
4.       _main in main.o
   
5.   "Stack<char const*>::push(char const* const&)", referenced from:
   
6.       _main in main.o
   
7.   "Stack<char const*>::isFull()", referenced from:
   
8.       _main in main.o
   
9.   "Stack<char const*>::isEmpty()", referenced from:
   
10.       _main in main.o
    
11.   "Stack<char const*>::Stack(int)", referenced from:
    
12.       _main in main.o
    
13. ld: symbol(s) not found for architecture x86_64
    
14. clang: error: linker command failed with exit code 1 (use -v to see invocation)
    
15. make: *** [class_template1] Error 1
    
16. 10:09:02: 进程"/usr/bin/make"退出，退出代码 2 。
    
17. Error while building/deploying project class_template1 (kit: Desktop Qt 5.6.1 clang 64bit)
    
18. When executing step "Make"

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请问这种错误该如何解决？

DarkSE

你那个 模板类 类和实现不要分开文件写

BigSpoon

Thanks

得意的屁

楼主 这些代码是多久写完的

BigSpoon

怎么？