Re: [Dev-C++] Problems with a for loop again

[Jason H. <jas...@bt...>]

I'm glad I could help a little, and I have a small piece of advice for =
you. That is becareful in using the do..while loop; you have to remember =
that it will always go through the loop at least once, even if there are =
no lines to be displayed, which may be an error. Atual usage of =
do..while loops is a lot rarer than that of while and for loops.

Also the index value filesize isn't valid the first time around. Vectors =
start at zero and go to size() - 1, just like arrays. Which also means =
that you will miss off the first line in the vector.

Jason.
  ----- Original Message -----=20
  From: Paul Stone=20
  To: Dev C++ Mailing list=20
  Sent: Sunday, March 10, 2002 7:23 PM
  Subject: [Dev-C++] Problems with a for loop again


  Here is the full code, pasted the wrong code in last message.

  #include <string>
  #include <iostream>
  #include <fstream>
  #include <vector>
  using namespace std;
  =20
  int main(int argc, char *argv[])
  {
    int filesize=3D0;
    vector<string> v;
    ifstream in("Backvector.cpp");
    string line;
    while(getline(in, line))=20
      v.push_back(line); // Add the line to the end=20
    filesize=3Dv.size();     // Get number of lines in file
    //
    // !!!!!!!!!!!!!!!!!!!!!!!!!!!!
    // !!!!!!!!!!!!!!!!!!!!!!!!!!!!
    // !!!!!!!!!!!!!!!!!!!!!!!!!!!!
    //
    do {
       cout << filesize << ": " << v[filesize] << endl;
       filesize=3Dfilesize-1;
    } while(filesize >0);
    system("PAUSE");
    return 0;
  } ///:~
  =20