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reading file and counting word appearances in it

etcfantus (3)
Hello,

Getting on problem, where i'm trying to read input.txt which contains the following:
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  colors red blue green yellow orange purple
sky blue high clouds air empty vast big


and output should be like:
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(colors, black) => 1
(colors, blue) => 4 
.
.
.

Problem:
What i tried to do is, to take a file, and count number of word appearances in it.
Using online compiler : http://www.compileonline.com/compile_cpp11_online.php
My code:
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#include <iostream>
#include <map> 
#include <fstream> 
#include <string> 
using namespace std;



template <class KTy, class Ty>
void PrintMap(map<KTy, Ty> map)
{
    typedef std::map<KTy, Ty>::iterator iterator;
    for (iterator p = map.begin(); p != map.end(); p++)
        cout << p->first << ": " << p->second << endl;
}

int main(void)
{
    static const char* fileName = "input.txt";


    map<string, unsigned int> wordsCount;


    {

        ifstream fileStream(fileName);


        if (fileStream.is_open())
            while (fileStream.good())
            {

                string word;
                fileStream >> word;


                if (wordsCount.find(word) == wordsCount.end()) 
                    wordsCount[word] = 1; 
                else 
                    wordsCount[word]++; 
            }
        else 
        {
            cerr << "Couldn't open the file." << endl;
            return EXIT_FAILURE;
        }

       
        PrintMap(wordsCount);
    }

    return EXIT_SUCCESS;
}

Kinda stucked after 4h looking at it :\


Thanks,
Michael
Last edited on
MiiNiPaa (8886)
You did not tell what your problem is.
I see problem with typedef in your template:
It should be typedef typename std::map<KTy, Ty>::iterator iterator;
etcfantus (3)
oh yes, after fixing it gettin error on 46th line of code saying that was not declared in that scopre.

well my problem is, this is not working somehow, and i dont know why :\ i mean, except that typedef error and this one now....

Edit:
On online compiler its working, but on codeblocks errors ;\ ( and i dont have internet everywhere )
Last edited on
MiiNiPaa (8886)
Works for me: http://puu.sh/9fiSH/842dbdc824.png
Problem with line 46 (and 53) is that these macro are defined in cstdlib header. You can either include it or just use 0 for success and any non-zero value for failure
Last edited on
etcfantus (3)
Okay, perfect. Thank you!
fahadmunir34 (1)
Best of Luck etcfantus. Keep the hard work going
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