array.int search ( int array[], int number, int key )
{
	int pos = 0;
 
	while(pos < number && array[pos] != key)
		pos++;
 
	if( pos == number)
		pos = 0;
	else
		pos = 1;
 
	return pos;
}

#include <iostream>
#include <fstream>
#include <cstdlib>
#include <string>
#include <iomanip>
using namespace std;
 
void displayFile( char []);
 
void main ()
{
	int const wordLength = 21;
	int const Num = 101;
	int const fileSize = 255;
 
 
	char filename[fileSize];
	ifstream inFile;
 
 
	struct
	{
		char word[wordLength];
		int count;
	} wordCount;
 
	wordCount array[Num];
 
    cout << "Please enter the name of thr file you wish to open: "<< endl;
	cin >> filename;
 
	displayFile (filename);
 
}
 
void displayFile (char fileName [] )
{
    ifstream infile;
	char array [101];
    char line [101];
	int ch;
    int i;
	infile.open (fileName);
 
    while ((ch = infile.peek()) != EOF) 
    {
        infile.getline (line, 101);
        line = array[i];
        i++;
    }
 
   for (int j = 0; j<101; j++)
	cout << array[j] << endl;
    infile.close ();

struct words
{
    std::string word;
    int count;
};

vector<words> wordArray;

	fstream inFile("C:\\Laiq.txt");
 
	string line;
	std::map<string, int> mapWordCount;
	string word;
	std::string::size_type endWord;
	std::string::size_type startWord;
	while (std::getline (inFile,line)) {				
		startWord = 0;
		while ((endWord = line.find_first_of(" ", startWord))!= line.npos) 
                {				
				word = line.substr (startWord, endWord - startWord);
				mapWordCount[word]++;
				startWord = endWord+1;
		}
	}
	inFile.close();
 
 
	for(map<string,int>::const_iterator iter = mapWordCount.begin(); 
		iter != mapWordCount.end(); ++iter) {
			cout<< "The Frequency of word: "<< iter->first << " is : "<< iter->second <<endl;
	}

if the next word is found in the map then
    do notning or increment this word counter
else
    insert new word in the map
endif

open file stream
create an empty map
loop // until eof
   skip non-letters
   clear word buffer // use std::string::clear()
   append letters to the word buffer
   process the word with the map // see #2
endloop
process a possible last word
traverse map (file word dictionary)

#include <iostream>
#include <fstream>
#include <cstdlib>   // needed for exit()
#include <string>
using namespace std;
 
int main()
{
  string filename = "text.dat";  // put the filename up front
  string line;
  ifstream inFile;
 
  inFile.open(filename.c_str());
 
  if (inFile.fail())  // check for successful open
  {
    cout << "\nThe file was not successfully opened"
	 << "\n Please check that the file currently exists."
	 << endl;
    exit(1);
  }
 
  // read and display the file's contents
  while (getline(inFile,line))
    cout << line << endl;
 
  inFile.close(); 
 
  cin.ignore();  // this line is optional
 
  return 0;
}

#include <iostream>
#include <fstream>
#include <cstdlib>
#include <string>
#include <iomanip>
using namespace std;
 
void displayFile( char []);
 
void main ()
{
	int const wordLength = 21;
	int const Num = 101;
	int const fileSize = 255;
	char filename[fileSize];
 
	cout << "Please enter the name of the file you wish to open: "<< endl;
	cin.getline(filename,fileSize);
 
	displayFile (filename);
	cin.ignore();
}
 
void displayFile (char fileName[] )
{
    ifstream inFile;
 
    char line [101];
 
	inFile.open(fileName);
 
 while (getline(inFile, line))
    cout << line << endl;
 
	inFile.close(); 
 
	return 0;
}

void displayFile (char fileName[], words array[] )
{
	int i = 0;
    ifstream inFile;
 
    char line [101];
 
	inFile.open(fileName);
 
 while (inFile.getline(line,101))
 {   
	cout << line << endl;
    array[i].word = line;
    i++;
 }   
	inFile.close(); 
 
}

// #include <cctype> dependency
typedef unsigned char Uchar; // needed for isalpha()
/// Get or skip the next word from a stream. 
/// wbufsize is the max word length + 1 (for null char)
bool getWord(char* word, int wbufsize, std::istream& is)
{
    int i = 0, n = wbufsize - 1; // max letters
    bool fill = (word && n > 0); // word wanted
    char ch; // current char
 
    while (is.get(ch) && !isalpha(Uchar(ch)))
        ;   // skip delimiters
    if (is) // have a letter
    do {
        if (fill) { // have a room
            word[i] = ch; // append letter
            if (i >= n)   // no more room
                fill = false;
        }
        ++i; // letters counter
    } while (is.get(ch) && isalpha(Uchar(ch)));
    if (word)// have a buffer
        word[i] = '\0'; // end of word
    return i > 0; // have a word
}

        char* arr = " Hallo WOrld";
	char* ptrFirst = arr;
	char* ptrIter = arr;
	int nWordCount = 0;
 
	// Base Condition.
	while (isspace (*ptrFirst))
		++ptrFirst;
 
	ptrIter = ptrFirst;
 
	while (ptrFirst) {
 
		while (isalpha(*ptrIter)) {
			++ptrIter;
		}
 
		++nWordCount;
 
		while (isspace (*ptrIter))
			++ptrIter;
 
		if (ptrFirst == ptrIter)
			break;
 
		ptrFirst = ptrIter;
	}
 
	cout << nWordCount-1 <<endl;