count words

[74466]

i am currently workin through the thinking in c++ ebook 2nd edition, at the end of the 2nd chapter i get the following taski:::

Create a program that opens a file and counts the whitespace-separated words in that file....

this is the program i wrote, but i just dont think this s right... is there any keyword that i can use to count words? (i know i can use strlen, but that would only give number of caghracters and not words???)

#include<vector>
#include<fstream>
#include<iostream>
#include<string>
using namespace std;

int main()
{
	vector<string> vect;
	string norm;
	cout<<"This program will count the words in a file.\n";
	ifstream count("exe3.txt");
	while(count>>norm)
	vect.push_back(norm);
	for(int ln=0;ln<vect.size();ln++)
	cout<<ln<<": "<<vect[ln]<<endl;
	cin.get();
}

[hk_mp5kpdw]

Well, seems you should output vect.size() to the console and not the list of words. You don't need to store the words at all really, just have a counter variable that gets incremented in the while loop and then display that counter's value at the end.

[74466]

how do i o that?

[neandrake]

Try counting white-space characters. Every word is followed by one (except the last). So increment only if the current byte is a whitespace, and the previous one wasn't. That's my idea anyways

[hk_mp5kpdw]

unsigned counter = 0;
while( count >> norm ) ++counter;
cout << "There were " << counter << " words found." << endl;