count words

This is a discussion on count words within the C++ Programming forums, part of the General Programming Boards category; i am currently workin through the thinking in c++ ebook 2nd edition, at the end of the 2nd chapter i ...

  1. #1
    Nothing is impossible! 74466's Avatar
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    Question count words

    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???)


    Code:
    #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();
    }

  2. #2
    Registered User hk_mp5kpdw's Avatar
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    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.
    "Owners of dogs will have noticed that, if you provide them with food and water and shelter and affection, they will think you are god. Whereas owners of cats are compelled to realize that, if you provide them with food and water and shelter and affection, they draw the conclusion that they are gods."
    -Christopher Hitchens

  3. #3
    Nothing is impossible! 74466's Avatar
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    how do i o that?

  4. #4
    30 Helens Agree neandrake's Avatar
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    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
    Environment: OS X, GCC / G++
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    Registered User hk_mp5kpdw's Avatar
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    Code:
    unsigned counter = 0;
    while( count >> norm ) ++counter;
    cout << "There were " << counter << " words found." << endl;
    "Owners of dogs will have noticed that, if you provide them with food and water and shelter and affection, they will think you are god. Whereas owners of cats are compelled to realize that, if you provide them with food and water and shelter and affection, they draw the conclusion that they are gods."
    -Christopher Hitchens

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