how to count an element within array

[korselbujang]

#include <cstdlib>
#include <iostream>
#include <string>
#include <sstream>


using namespace std;
struct book
{
string title;
string outhor;
int price;
};
int main()
{
string answer,str_counter,str_price;
int counter,book_counter;
book *books;
cout<<endl<<"how many books you want to add : ";getline(cin,str_counter);
stringstream(str_counter)>>counter;
books = new (nothrow) book[counter];
if(books == 0)
{
cout<<endl<<"sorry, not enought memmory to add a new book";
}
else
{
for(int i=0;i<counter;i++)
{
cout<<endl<<"name book no. "<<i<<" : ";getline(cin,books[i].title);
cout<<endl<<"outhor : ";getline(cin,books[i].outhor);
cout<<endl<<"price : ";getline(cin,str_price);
stringstream(str_price)>>books[i].price;
}
}

cout<<endl<<"total "<<counter<<" entered"; // here is froblem


cout<<endl<<endl;
system("PAUSE");
return EXIT_SUCCESS;

}

this code work fine, but i think i cant rely on counter to count books array
though array can grow or shrink unexpected, can anyone halp me to do better way ?

[ne555]

[code] Your code goes here [/code]

though array can grow or shrink unexpected, can anyone halp me to do better way ?

Use std::vector

[Return 0]

Why don't you just use a vector for this?

[korselbujang]

thanks, but i dont know what vector is, ill find out

[korselbujang]

i didnt finish all this tutorial, i read and practice and found a trouble, just like that, I am just learning about the construct, yet more, until what I have read so I can understand vector?

[Return 0]

http://www.cplusplus.com/reference/stl/vector/ start here.

[korselbujang]

thanks btw, i read it , but dont get it, i dont even know what class is. may be i need more knowladge before try to learn vector. am i ?, but realy thanks because i dont need to worry about growing or shrinking array, just believe in all of you thats its can be done with vector someday, thanks... all