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Weird Error

closed account (DL30RXSz)
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#include <iostream>
#include <string>
#include <list>
#include <deque>
#include <vector>

using namespace std;

template <typename stlObject>
void PrintSTLObject(stlObject objectToPrint);

template <typename elementType>
void PrintSTLObject(list<elementType> objectToPrint)

int main()
{
    deque<int> listIntegers;
    listIntegers.push_front(10);
    listIntegers.push_front(2001);
    listIntegers.push_front(-1);
    listIntegers.push_front(9999);

    PrintSTLObject(listIntegers);

    return 0;
}

template<typename stlObject>
void PrintSTLObject(stlObject objectToPrint)
{
    for(unsigned int i = 0;
        i < objectToPrint.size();
        i++)
    {
        cout << "Element: " << i << ": " << objectToPrint.at(i) << endl;
    }
}

template<typename elementType>
void PrintSTLObject(list<elementType> objectToPrint)
{
    list<elementType>::iterator iElementLocator; //right here
    int i = 0;
    for(iElementLocator = objectToPrint.begin();
        iElementLocator != objectToPrint.end();
        iElementLocator++)
    {
        cout << "Element " << i << ": " << * iElementLocator << endl;
        ++i;
    }
}


|42|error: expected ‘;’ before ‘iElementLocator’
I can't figure why it is telling me that!

m4ster r0shi (2201)
You missed a ';' at line 13
closed account (DL30RXSz)
Woops, but I still get the same error for line 42.
m4ster r0shi (2201)
Indeed... this is weird... I've been looking at it for about 10 minutes and haven't figured it out yet...
closed account (DL30RXSz)
Have you tried compiling it yourself? Maybe it's just my system.
m4ster r0shi (2201)
Yes, I've tried... It doesn't compile... Look, you can do it like this until we find what's wrong, this one compiles:

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#include <iostream>
#include <string>
#include <list>
#include <deque>
#include <vector>

using namespace std;

template <typename stlObject>
void PrintSTLObject(stlObject objectToPrint);

template <typename elementType>
void PrintSTLObject(list<elementType> objectToPrint);

int main()
{
    deque<int> listIntegers;
    listIntegers.push_front(10);
    listIntegers.push_front(2001);
    listIntegers.push_front(-1);
    listIntegers.push_front(9999);

    PrintSTLObject(listIntegers);

    return 0;
}

template<typename stlObject>
void PrintSTLObject(stlObject objectToPrint)
{
    for(unsigned int i = 0;
        i < objectToPrint.size();
        i++)
    {
        cout << "Element: " << i << ": " << objectToPrint.at(i) << endl;
    }
}

template<typename elementType>
void PrintSTLObject(list<elementType> objectToPrint)
{
    //list<elementType>::iterator iElementLocator; //right here
    int i = 0;
    /*for(iElementLocator = objectToPrint.begin();
        iElementLocator != objectToPrint.end();
        iElementLocator++)*/
    for (i=0; objectToPrint.begin()+i!=objectToPrint.end(); i++)
    {
        cout << "Element " << i << ": " << *(objectToPrint.begin()+i) << endl;
        ++i;
    }
}

EDIT: No, forget it... it won't work. It only compiles because it's a template and you don't use this function anywhere... If you instantiate a list in your main and try to call this function it won't compile...
Last edited on
m4ster r0shi (2201)
Well... It seems to me that this is the best you can do...

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#include <iostream>
#include <deque>
#include <vector>
#include <list>
#include <algorithm>

using namespace std;

//template
template <typename stlObject>
void PrintSTLObject(stlObject objectToPrint);

//template specialization1
void PrintSTLObject(list<int> objectToPrint);

//template specialization2
void PrintSTLObject(list<double> objectToPrint);

int main()
{
    deque<int> my_ideque;
    vector<int> my_ivector;
    list<int> my_ilist;

    deque<double> my_ddeque;
    vector<double> my_dvector;
    list<double> my_dlist;

    my_ideque.push_front(1);
    my_ideque.push_front(2);
    my_ideque.push_front(3);
    my_ideque.push_front(4);

    my_ddeque.push_front(1.1);
    my_ddeque.push_front(2.2);
    my_ddeque.push_front(3.3);
    my_ddeque.push_front(4.4);

    my_ivector.resize(4);
    my_ilist.resize(4);
    my_dvector.resize(4);
    my_dlist.resize(4);

    copy(my_ideque.begin(),my_ideque.end(),my_ivector.begin());
    copy(my_ideque.begin(),my_ideque.end(),my_ilist.begin());
    copy(my_ddeque.begin(),my_ddeque.end(),my_dvector.begin());
    copy(my_ddeque.begin(),my_ddeque.end(),my_dlist.begin());

    PrintSTLObject(my_ideque);
    PrintSTLObject(my_ivector);
    PrintSTLObject(my_ilist);
    PrintSTLObject(my_ddeque);
    PrintSTLObject(my_dvector);
    PrintSTLObject(my_dlist);

    return 0;
}

template<typename stlObject>
void PrintSTLObject(stlObject objectToPrint)
{
    cout << "template call!" << endl;

    for(unsigned int i = 0; i < objectToPrint.size(); i++)
    {
        cout << "Element: " << i << ": " << objectToPrint.at(i) << endl;
    }

    cout << endl;
}

void PrintSTLObject(list<int> objectToPrint)
{
    cout << "template specialization1 call!" << endl;

    list<int>::iterator iElementLocator;
    int i = 0;
    for(iElementLocator = objectToPrint.begin();
        iElementLocator != objectToPrint.end();
        iElementLocator++)
    {
        cout << "Element " << i << ": " << * iElementLocator << endl;
        ++i;
    }

    cout << endl;
}

void PrintSTLObject(list<double> objectToPrint)
{
    cout << "template specialization2 call!" << endl;

    list<double>::iterator iElementLocator;
    int i = 0;
    for(iElementLocator = objectToPrint.begin();
        iElementLocator != objectToPrint.end();
        iElementLocator++)
    {
        cout << "Element " << i << ": " << * iElementLocator << endl;
        ++i;
    }

    cout << endl;
}
Last edited on
closed account (DL30RXSz)
Looks like that will do. Thanks for all your effort.
m4ster r0shi (2201)
No problem! :P Anytime! :D
Albatross (4553)
*wince* full answers FTL.

I wonder why you were using typename. class would have been just fine, no?

-Albatross
firedraco (6243)
In this case, typename and class are equivalent. It's purely the coders decision on which they like more.
kkerriny (4)
I have an error problem as well, please help?

1>c:\documents and settings\student\my documents\visual studio 2008\projects\04shoemaker\04shoemaker\04shoemaker.cpp(9) : error C2447: '{' : missing function header (old-style formal list?)

code:

//programmer: Kelly Shoemaker
//program: 04Shoemaker.cpp
//purpose: Count Positive and Negative Values

#include <iostream>
using namespace std;

void main ();
{

cout << "Program Written By Kelly Shoemaker" << endl;

int i, v, p, n;
for (i = 1; i < = 10; i = i + 1);
{
cout << "Enter Integer Value: ";
cin >> v;

(v > = 0)?;
v = p p : n

cout << "Number of Positive Values: " << p << endl;
cout << "Number of Negative Values: " << n << endl;
}

system ("pause");
}




i am an extreme beginner
guestgulkan (2942)
here is how to start your own topic.
Select the forum you want to post in.

Scroll down the page, and you will se a NEW TOPIC button.

(personally I think they should have that button at the top of the forum page).
Topic archived. No new replies allowed.