#include <iostream>
#include <string>
#include <vector>
using namespace std;

class Student
{
public:
		Student();
		Student(const string& name, const int age);
		Student(const Student& rhs);
		~Student();

		void SetName(const string& name);
		string GetName() const;
		void SetAge(const int age);
		int GetAge() const;

		Student& operator=(const Student& rhs);
private:
		string itsName;
		int itsAge;
};

Student::Student()
: itsName("Neuer Schueler"),itsAge(16)
{}

Student::Student(const string& name, const int age)
: itsName(name),itsAge(age)
{}

Student::Student(const Student& rhs)
:itsName(rhs.GetName()),itsAge(rhs.GetAge())
{}

Student::~Student()
{}

void Student::SetName(const string& name)
{
	itsName=name;
}
string Student::GetName() const
{
	return itsName;
}

void Student::SetAge(const int age)
{
	itsAge=age;
}

int Student::GetAge() const
{
	return itsAge;
}

Student& Student::operator=(const Student& rhs)
{
	itsName=rhs.GetName();
	itsAge=rhs.GetAge();
	return *this;
}

ostream& operator<<(ostream& os,const Student& rhs)
{
	os<<rhs.GetName()<<" ist "<<rhs.GetAge()<<" Jahre alt";
	return os;
}

template<class T>
void ShowVector(const vector<T>& v);

typedef vector<Student> SchoolClass;

int main()
{
	Student Harry;
	Student Sally("Sally",15);
	Student Bill("Bill",17);
	Student Peter("Peter",16);

	SchoolClass EmptyClass;
	cout <<"Leere Klasse:\n";
	ShowVector(EmptyClass);

	SchoolClass GrowingClass(3);
	cout << "Wachsende Klasse(3):\n";
	ShowVector(GrowingClass);

	GrowingClass[0]=Harry;
	GrowingClass[1]=Sally;
	GrowingClass[2]=Bill;
	cout<<" WachsendeKlasse(3) nach Zuweisung von Schuelern:\n";
	ShowVector(GrowingClass);

	GrowingClass.push_back(Peter);
	cout<<"Wachsende KLasse nach Zuweisung des 4ten Schuelers\n:";
	ShowVector(GrowingClass);

	GrowingClass[0].SetName("Harry");
	GrowingClass[0].SetAge(18);
	cout<<"Wachsende Klasse nach eintragung des namens\n:";
	ShowVector(GrowingClass);
	return 0;

}

template<class T>
void ShowVector(const vector<T>& v)
{ 
	unsigned int i;
	cout<<"max_size()=" << v.max_size();
	cout<<"\tsize()="<<v.size();
	cout<<"\tcapacity()="<<v.capacity();
	cout<<"\t"<<(v.empty()? "leer":"nicht leer");
	cout<<"\n";
	for( i=0;i<v.size();++i)
		cout << v[i]<<"\n";
	cout<<endl;

}

da schmeisst der compiler folgenden fehler raus:

Linking...

C:\...\testclass\Debug\testclass.o(.text$_ZNSt14__simple_allocI7StudentSt24__default_alloc_templateILb1ELi0EEE10deallocateEPS0_j+0x1d): In function `ZN7StudentC2Ev':

C:\...\testclass\testclass.cpp:26: undefined reference to `std::__default_alloc_template<true, 0>::deallocate(void*, unsigned)'

C:\...\testclass\Debug\testclass.o(.text$_ZNSt14__simple_allocI7StudentSt24__default_alloc_templateILb1ELi0EEE8allocateEj+0x1d):C:\Dokumente und Einstellungen\Tutor\Desktop\svn\transistor_kennlinien\testclass\testclass.cpp:26: undefined reference to `std::__default_alloc_template<true, 0>::allocate(unsigned)'

testclass.exe - 2 error(s), 0 warning(s)

ändere ich folgendes:

void ShowVector(const vector<T>& v)
{

unsigned int i;

cout<<"max_size()=" << v.max_size();
cout<<"\tsize()="<<v.

zu:
void ShowVector(const vector<T>& v)
{

signed int i;

cout<<"max_size()=" << v.max_size();
cout<<"\tsize()="<<v.
bekomme ich folgenden fehler:

Compiling source file(s)...

testclass.cpp

testclass.cpp: In function `void ShowVector(const std::vector<T,
std::allocator<_CharT> >&) [with T = Student]':
testclass.cpp:86: instantiated from here

testclass.cpp:119: warning: comparison between signed and unsigned integer
expressions

testclass.exe - 1 error(s), 1 warning(s)

hmmmmm,.... wieso?? wie änder ich das ab???
also ich benutze MinGW Dev Studio...

thx for help

template<class T>
void ShowVector(const vector<T>& v);

typedef vector<Student> SchoolClass;

int main()
{...

wurde jetzt:

template<class T>
void ShowVector(const vector<T>& v)
{ 
	unsigned int i;
	cout<<"max_size()=" << v.max_size();
	cout<<"\tsize()="<<v.size();
	cout<<"\tcapacity()="<<v.capacity();
	cout<<"\t"<<(v.empty()? "leer":"nicht leer");
	cout<<"\n";
	for( i=0;i<v.size();++i)
		cout << v[i]<<"\n";
	cout<<endl;

}

typedef vector<Student> SchoolClass;

int main()
{...

folgender fehler taucht auf:

--------------------Configuration: testclass - Debug--------------------
Compiling source file(s)...
testclass.cpp
Linking...
C:\Dokumente und Einstellungen\Tutor\Desktop\svn\transistor_kennlinien\testclass\Debug\testclass.o(.text\_ZNSt14\_\_simple\_allocI7StudentSt24\_\_default\_alloc\_templateILb1ELi0EEE10deallocateEPS0\_j+0x1d): In function `ZN7StudentC2Ev': C:\\Dokumente und Einstellungen\\Tutor\\Desktop\\svn\\transistor\_kennlinien\\testclass\\testclass.cpp:26: undefined reference to `std::\_\_default\_alloc\_template::deallocate(void*, unsigned)' C:\\Dokumente und Einstellungen\\Tutor\\Desktop\\svn\\transistor\_kennlinien\\testclass\\Debug\\testclass.o(.text_ZNSt14__simple_allocI7StudentSt24__default_alloc_templateILb1ELi0EEE8allocateEj+0x1d):C:\Dokumente und Einstellungen\Tutor\Desktop\svn\transistor_kennlinien\testclass\testclass.cpp:26: undefined reference to `std::__default_alloc_template<true, 0>::allocate(unsigned)'

testclass.exe - 2 error(s), 0 warning(s)

wobei die fehlermeldung sich auf zeile 26 bezieht:

Student::Student()
: itsName("Neuer Schueler"),itsAge(16)
{}

hmmmm.....

____________________________________________________________________________-
edit:
also mit visual c++ express funzt ditte,.. aber why net minGW??
edit2:
und mit dev-c++ 4.9.9 auch... hmmmm