Reading in a file word by word?

[bamboojack]

I am writing a program that needs to read in from a file word by word (ie- read from one whitespace to the next whitespace and store those characters in a string). I know the getline function reads line by line but can not find a word by word equivalent.

string readFile (char* filename){
   ifstream file;
   string word;
   file.open(filename);
   word = //reads in word from file
   return word;
}

[integralfx]

while( file >> word ) {
    // process word...
}