用g++ 编程的问题（头文件）

spirit_cg

用c++编写了一个程序（在附件中，其中的EnhancedLinkedList.h自己编写，另两个一个是测试用，一个是已经提供的程序），然后用g++编译: g++ testdriver.cpp -o testdriver

出现错误如下：

spirit@freefly:~/EX/OE1/handout-files$ g++ testdriver.cpp -o testdriver
EnhancedLinkedList.h: In member function ‘T& EnhancedLinkedList<T>::find_first(const T&)’:
EnhancedLinkedList.h:13: 错误： ‘head’ 在此作用域中尚未声明
EnhancedLinkedList.h: In member function ‘EnhancedLinkedList<T> EnhancedLinkedList<T>::find_all(const T&)’:
EnhancedLinkedList.h:27: 错误： ‘head’ 在此作用域中尚未声明
EnhancedLinkedList.h: In member function ‘void EnhancedLinkedList<T>::remove_first(const T&)’:
EnhancedLinkedList.h:42: 错误： ‘head’ 在此作用域中尚未声明
EnhancedLinkedList.h:52: 错误： there are no arguments to ‘pop_front’ that depend on a template parameter, so a declaration of ‘pop_front’ must be available
EnhancedLinkedList.h:52: 错误： (如果您使用 ‘-fpermissive’，G++ 会接受您的代码，但是允许使用未定义的名称是过时的风格)
EnhancedLinkedList.h:53: 错误： no post-decrement operator for type
EnhancedLinkedList.h:60: 错误： no post-decrement operator for type
EnhancedLinkedList.h:63: 错误： ‘tail’ 在此作用域中尚未声明
EnhancedLinkedList.h:64: 错误： there are no arguments to ‘pop_back’ that depend on a template parameter, so a declaration of ‘pop_back’ must be available
EnhancedLinkedList.h:65: 错误： no post-decrement operator for type
EnhancedLinkedList.h: In member function ‘T& EnhancedLinkedList<T>::find_first(const T&) [with T = std::basic_string<char, std::char_traits<char>, std::allocator<char> >]’:
testdriver.cpp:25:   instantiated from here
EnhancedLinkedList.h:17: 错误： 不能将 ‘search-> Node<T>::getData [with T = std::basic_string<char, std::char_traits<char>, std::allocator<char> >]()’ 转换为 ‘bool’
EnhancedLinkedList.h: In member function ‘EnhancedLinkedList<T> EnhancedLinkedList<T>::find_all(const T&) [with T = std::basic_string<char, std::char_traits<char>, std::allocator<char> >]’:
testdriver.cpp:110:   instantiated from here
EnhancedLinkedList.h:33: 错误： 不能将 ‘search-> Node<T>::getData [with T = std::basic_string<char, std::char_traits<char>, std::allocator<char> >]()’ 转换为 ‘bool’
EnhancedLinkedList.h: In member function ‘void EnhancedLinkedList<T>::remove_first(const T&) [with T = std::basic_string<char, std::char_traits<char>, std::allocator<char> >]’:
testdriver.cpp:122:   instantiated from here
EnhancedLinkedList.h:47: 错误： 不能将 ‘Node<std::basic_string<char, std::char_traits<char>, std::allocator<char> > >’ 转换为 ‘Node<std::basic_string<char, std::char_traits<char>, std::allocator<char> > >*’，在 assignment 中
EnhancedLinkedList.h:48: 错误： base operand of ‘->’ has non-pointer type ‘Node<std::basic_string<char, std::char_traits<char>, std::allocator<char> > >’
EnhancedLinkedList.h:49: 错误： base operand of ‘->’ has non-pointer type ‘Node<std::basic_string<char, std::char_traits<char>, std::allocator<char> > >’
EnhancedLinkedList.h:50: 错误： base operand of ‘->’ has non-pointer type ‘Node<std::basic_string<char, std::char_traits<char>, std::allocator<char> > >’
testdriver.cpp:122:   instantiated from here
EnhancedLinkedList.h:56: 错误： base operand of ‘->’ has non-pointer type ‘Node<std::basic_string<char, std::char_traits<char>, std::allocator<char> > >’
EnhancedLinkedList.h:57: 错误： base operand of ‘->’ has non-pointer type ‘Node<std::basic_string<char, std::char_traits<char>, std::allocator<char> > >’
EnhancedLinkedList.h:58: 错误： base operand of ‘->’ has non-pointer type ‘Node<std::basic_string<char, std::char_traits<char>, std::allocator<char> > >’
EnhancedLinkedList.h:59: 错误： type ‘class Node<std::basic_string<char, std::char_traits<char>, std::allocator<char> > >’ argument given to ‘delete’, expected pointer
testdriver.cpp:122:   instantiated from here
EnhancedLinkedList.h:70: 错误： base operand of ‘->’ has non-pointer type ‘Node<std::basic_string<char, std::char_traits<char>, std::allocator<char> > >’


希望大家查看一下附件，我认为是EnhancedLinkedList.h头文件没有将LinkedList.h头文件包含进去的原因，其中涉及了头文件的互相包括，希望大家帮忙看看，谢谢！

ywchen2000

g++ -I./ testdriver.cpp -o testdriver

spirit_cg

î˜Ø是¡有ã³...期待中... ^_^

manphiz

本应这样能解决的：

g++ -I. -I./handout-files testdriver.cpp

但是楼主的程序问题太多。从模板类继承下来的派生类在引用基类成员时应该加上`this->'，因为基类成员不在查找域中(Koenig Lookup)。而且很多不返回整型的量也用来判断。很多是程序本身的问题。楼主好好修改下吧。

ywchen2000

问题解决了吗？

spirit_cg

刚才在ž验¤上的debianûß
（gcc version 3.3.5 (Debian 1:3.3.5-13)）
上Û行了ô改，Ñ°编Ñ通Ç了，Þ»Ø会在我êñ的kubuntu上再次ô改编Ñ来验Á
谢谢Þ贴的两位大å!^_^