c++ - "Undefined symbols for Architecture x86_64 " no templates used, possible syntax error -

c++ - "Undefined symbols for Architecture x86_64 " no templates used, possible syntax error -

i know mutual question, please bear me. understand seeing past questions:

i not using templates, " template class treenode; " before each utilize of template, assuming problem similar, related syntax, or basic. if answered edit question more people benefit it.

so have utilize these code operations in main.cpp carry out operations- e.g. utilize deleteitem, retrieve 10 , print whether found, etc.

the code follows:

//unsortedtype.h #ifndef unsortedtype_h_included #define unsortedtype_h_included #include "itemtype.h" class unsortedtype { public: unsortedtype(); bool isfull() const; int lengthis() const; void retrieveitem(itemtype&item, bool&found); void insertitem(itemtype item); void deleteitem(itemtype item); void resetlist(); void getnextitem(itemtype& item); void printlist(); private: int length; itemtype info[max_items]; int currentpos; }; #endif // unsortedtype_h_included

//fileno2

//unsortedtyoe.cpp #ifndef unsortedtype_cpp_included #define unsortedtype_cpp_included #include "unsortedtype.h" unsortedtype::unsortedtype() { length = 0; currentpos = -1; } bool unsortedtype::isfull() const { homecoming (length == max_items); } int unsortedtype::lengthis() const { homecoming length; } void unsortedtype::retrieveitem(itemtype &item, bool &found){ int location = 0; bool moretosearch = (location < length); found = false; while (moretosearch && !found){ switch (item.comparedto(info[location])) { case less: case greater: location++; moretosearch = (location < length); break; case equal: found = true; } } } void unsortedtype::insertitem(itemtype item) { info[length] = item; length++; } void unsortedtype::deleteitem(itemtype item){ int location = 0; while (item.comparedto(info[location]) != equal){ location++; info[location] = info[length - 1]; length++; } } void unsortedtype::resetlist(){ currentpos = -1; } void unsortedtype::getnextitem(itemtype &item){ currentpos++; item = info[currentpos]; } void unsortedtype::printlist(){ itemtype it; (int = 1; <= length; i++){ getnextitem(it); it.print(); cout<<""; } resetlist(); cout<<endl; } #endif // unsortedtype_cpp_included

//fileno3

//itemtype.h #ifndef itemtype_h_included #define itemtype_h_included #include <iostream> using namespace std; const int max_items = 5; enum relationtype{less, greater, equal}; class itemtype{ public: itemtype(); relationtype comparedto(itemtype) const; void print() const; void initialize(int number); private: int value; } ; #endif // itemtype_h_included

fileno4

//itemtype.cpp #ifndef itemtype_cpp #define itemtype_cpp #include "itemtype.h" itemtype::itemtype(){ value = 0; } relationtype itemtype::comparedto(itemtype otheritem) const { if (value<otheritem.value) homecoming less; else if (value > otheritem.value) homecoming greater; else homecoming equal; } void itemtype::initialize(int number){ value = number; } void itemtype::print() const { cout << value << ""; } #endif // itemtype_cpp

main

#include <iostream> #include "itemtype.h" #include "unsortedtype.h" using namespace std; int main() { unsortedtype ustype1; cout << ustype1.lengthis() << endl; /* //insertitem ustype1.insertitem(5); ustype1.insertitem(7); ustype1.insertitem(6); ustype1.insertitem(9); ustype1.printlist(); ustype1.insertitem(1); ustype1.printlist(); //retreiveitem bool found; ustype1.retrieveitem(4, found); cout << found << endl; ustype1.retrieveitem(5, found); cout << found << endl; ustype1.retrieveitem(9, found); cout << found << endl; ustype1.retrieveitem(10, found); cout << found << endl; //isfull cout << ustype1.isfull() << endl; ustype1.deleteitem(5); cout << ustype1.isfull() << endl; //deleteitem ustype1.deleteitem(1); ustype1.printlist(); ustype1.deleteitem(6); ustype1.printlist(); */ cout << "hello world!" << endl; homecoming 0; }

my first problem this, when take out commented lines in main, , islength, this: http://i.imgur.com/xl8avs2.png?1

i think might basic error, , if coudl tell me how resolve grateful.

pps> beingness little lazy, when utilize commented out code in main, error, can tell me how insert integers functions itemtype?

http://i.imgur.com/e4mpbi5.png?1

edit: image 1:

-------------- build: debug in unsortedlist (compiler: gnu gcc compiler)--------------- g++ -o bin/debug/unsortedlist obj/debug/main.o obj/debug/unsortedtype.o -lstdc++ undefined symbols architecture x86_64: "itemtype::itemtype()", referenced from: unsortedtype::unsortedtype()in unsortedtype.o unsortedtype::unsortedtype()in unsortedtype.o unsortedtype::printlist() in unsortedtype.o "itemtype::comparedto(itemtype) const", referenced from: unsortedtype::deleteitem(itemtype) in unsortedtype.o unsortedtype::retrieveitem(itemtype&, bool&) in unsortedtype.o "itemtype::print() const", referenced from: unsortedtype::printlist() in unsortedtype.o ld: symbol(s) not found architecture x86_64 collect2: ld returned 1 exit status process terminated status 1 (0 minute(s), 0 second(s)) 0 error(s), 0 warning(s) (0 minute(s), 0 second(s))

you should specify itemtype.o on command line following.

g++ -o bin/debug/unsortedlist obj/debug/main.o obj/debug/unsortedtype.o obj/debug/itemtype.o

c++