Question

I have a while loop that uses stringstream/getline() to parse a string, however I’m having trouble manipulating the results from the loop. The loop splits the string up into 3 parts and puts each word in the variable “word” for that cycle of the loop. However, How can I then store each part in a variable or array so that I can use it outside the while loop?

The loop

string word;
    stringstream stream(cmdArgs.c_str());
    while( getline(stream, word, ' ') )
          // Manipulate results

The variable “cmdArgs” is the string.

Answer 1

Using a vector lets you break the string into words and store each word individually, no matter how many:

string word;  
stringstream stream(cmdArgs.c_str());  
vector<string> words;  
while( getline(stream, word, ' ') )  
{  
    words.push_back(word);  
}  

if you are confidant that there are exactly 3 words you could also just use a plain array:

string word;  
stringstream stream(cmdArgs.c_str());  
string words[3];  
int index = 0;  
while( getline(stream, word, ' ') )  
{  
    words[index++] = word;  
}  

but you would overflow that array if the incoming string was longer than you expect.