Yurttas/PL/OOL/Cplusplus/F/05/04/03/01/get vector item.cpp

 1/*
 2   Copyright(C) 2002
 3   All Rights Reserved. Salih Yurttas, ZCubes, BitsOfCode Software Systems, Inc..
 4
 5   Permission to use, copy, modify, and distribute this
 6   software and its documentation for EDUCATIONAL purposes
 7   and without fee is hereby granted provided that this
 8   copyright notice appears in all copies.
 9
10   date   : January 1, 2002.
11   author : Salih Yurttas.
12
13   get_vector_item.cpp
14*/
15
16
17#include "get_put_vector_item.h"
18
19using namespace std;
20
21template<class T>
22void get_vector_item(vector<T>& list) {
23  string filename;
24
25  cout << "--> input filename : ";
26  cin >> filename;
27  cout << endl;
28
29  ifstream f_in(filename.c_str());
30
31  if(!f_in) {
32    cerr << "File named as " << filename << " is not opened for input." << endl;
33    exit(1);
34  }
35  else {
36    T v;
37    while(f_in>>v)
38      list.push_back(v);
39  }
40
41  f_in.close();
42}