Count Words in a String using dev/C++

Now i am trying to count the No of words in a string  using C++ or dev .  You can use this code to count the words . which you enter . this is a simple and easy article , which would help you to learn C++ complicated coding with explanations . 
I am write every code line explanation in front of that line.
after coding running you can get out put as............

Code for this program is below . but ..........

this Code in dev , if you use Turbo C++ then do some Changing...

remove using namespace std;

remove int main  and use void main in turbo C++ .

remove return and use getch() int Turboo C++ .

Code of Programe :

#include <iostream>
#include <conio.h>             //for getche()
using namespace std;
enum itsaWord { NO, YES };     //NO=0, YES=1
int main()
{
itsaWord isWord = NO;       //YES when in a word,
//NO when in whitespace
char ch = 'a';              //character read from keyboard
int wordcount = 0;          //number of words read
cout << "Enter a phrase:\n";
do {
ch = getche();           //get character
if(ch==' ' || ch=='\r')  //if white space,
{
if( isWord == YES )   //and doing a word,
{                  //then it’s end of word
wordcount++;       //count the word
isWord = NO;       //reset flag
}
}                     //otherwise, it’s
else                     //normal character
if( isWord == NO )    //if start of word,
isWord = YES;      //then set flag
} while( ch != '\r' );   //quit on Enter key
cout <<endl<< "---Word count is " << wordcount << "---\n";

return 0;

}


If you feel any problem in program running then post in comment ,
i try my best to resolve this problem ,,,,,,,,,,,
Thanks for Visiting.