Thread: Vectors

Hi,

I'm new to C++, so please bear with me

I'm trying to use the vector STL and I need to delete an element from the vector.

I have created an object called Book and I store them in a vector of Books (vector<Book>).

On certain occasions, I need to delete a Book from the vector.
I'm having trouble with this:

The way I'm trying to do is to transfer the contents of the vector of Books a temp vector. Then I will copy the Books except for the deleted book back to the original vector.

for example:
(There exists a populated vector<Books> books)

Code:

vector<Books> temp;
string title; //title of book to be deleted

books.swap(temp);

for (int i=temp.size()-1; i>=0; i--)
{    if (temp[i].getTitle() != title)
      { books.pushback(temp.pop_back());       //ERROR
      }
      else
      {temp.popback();
      }
}

However, i get an error like this:
invalid use of void expression.

is there anyway I can do this operation?
Thanks a lot!!

There is no need to copy the items over to another vector

http://www.cppreference.com/cppvecto...ils.html#erase

just erase the item

one of the benefits of vectors