Posted by Example of using vectors and iterators STL.
NOTIFICATION: These examples are provided for educational purposes. Using this code is under your own responsibility and risk. The code is given ‘as is’. I do not take responsibilities of how they are used.
CardHolder.cc:
#ifndef CARDSHOLDER_CC
#define CARDSHOLDER_CC
#include <iostream>
using namespace std;
template <typename T, int N>
class CardsHolder {
private:
public:
insert(N value);
CardsHolder(void);
~CardsHolder(void);
};
CardsHolder::CardsHolder(void){
cout << endl << '[CARDHOLDER]' << endl;
}
CardsHolder::~CardsHolder(void){
cout << endl << '[~CARDHOLDER]' << endl;
}
#endif
CardHolder.h:
#ifndef CARDSHOLDER
#define CARDSHOLDER
#include <iostream>
using namespace std;
class CardsHolder {
private:
public:
CardsHolder(void);
insert(int value);
~CardsHolder(void);
};
CardsHolder::CardsHolder(void){
cout << endl << '[CARDHOLDER]' << endl;
}
CardsHolder::insert(int value){
}
CardsHolder::~CardsHolder(void){
cout << endl << '[~CARDHOLDER]' << endl;
}
#endif
mainDriver.cpp:
#include <iostream>
#include <vector>
#include <algorithm>
#include <time.h>
using namespace std;
template <typename T>
void display(const T& c);
template <typename Iterator, typename T>
void display(Iterator first, Iterator last, const T& c);
/**
* The purpose of this step is to isolate any problems with
* simply including and using the appropriate parts of the STL.
* Write a program that creates a single instance of
* the container you selected, one that holds integers.
*/
int main(int argc, char* argv[]){
// Your program should contain a single line...
// one that instantiates the templated container for integers.
// ie: vector<int> my_vect
vector<int> cards_vector;
// Insert integers 1-52 into your container.
for (int i = 1; i < 53; i++)
cards_vector.push_back(i);
// Print them (using display() - note that this does not use iterators.
// Write one using iterators instead if you want to!)
display(cards_vector);
cout << endl << '-----------------------------------------------'<< endl;
// Shuffle the integers (using random_shuffle()).
srand(time(NULL));
random_shuffle(cards_vector.begin(), cards_vector.end());
// Display them again, confirming that they are shuffled.
display(cards_vector);
// In a loop that is terminated by the STL container
// becoming empty ( not because you've done it 52 times),
// extract the integers from the front of the container,
// printing them out one at a time.
return 0;
}
/**
* Function template to display elements of any type
* (for which the output operator is defined) stored in
* a container c (for which [] and size() are defined).
*
* Precondition: Container is a type parameter.
*
* Postcondition: Values stored in c are output to out.
*/
template <typename T>
void display(const T& c){
for (unsigned int i = 0; i < c.size(); i++)
cout << c[i] << ' ';
cout << endl;
}
template <typename Iterator, typename T>
void display(Iterator first, Iterator last, const T& c) {
while (first != last){
cout << c[first] << ' ';
++first;
}
}
If you encounter any problems or errors, please let me know by providing an example of the code, input, output, and an explanation. Thanks.
© 2010, Alejandro G. Carlstein Ramos Mejia. All rights reserved.
