C++ Problem (Trying to split a string)?

Question

I am trying to use getline,cin to receive a two word string, and then split the string into two one word strings, must the same way the old text adventures of the 1980's did. However, I can't seem to figure it out. It should look like this:

What shall I do? GO WEST

Main reports that you typed
go for a verb.
west for the noun.

My result is 

Main reports that you typed
 for a verb.
go west for the noun.

This is the intended code.

int main(int argc, char *argv[])
{

while (death>0){
string answer,verb,noun,separator;
cout << "What shall I do? ";
getline (cin,answer);
for(unsigned int i=0;i<answer.length();i++){ // Convert to Lowercase
      answer[i] = tolower(answer[i]);}

// Split answer in 2 variables

     size_t i = answer.find(separator);

     if(i != string::npos){
          size_t y = 0;
          if(!answer.empty()){
              while(y != i){
                    verb += answer[y++];                     
                    }
                    y+= separator.length();
                      
              while(y != answer.length()){
                    noun+=answer[y++]; //creating noun string
                    }
                    }

cout << "Main reports that you typed " << endl;
cout << verb << " for a verb." << endl;
cout << noun << " for the noun.&#92;n&#92;n" << endl;
}
 
Any help would be appreciated. 
    system("PAUSE");
    return EXIT_SUCCESS;
}
}

oops · Accepted Answer

If you have boost, and you should, there is a function called split.  If not, then you can use string streams.  Here's an example of both:

http://ideone.com/606eD

Carl · Answer

Your problem is you declare the string variable "separator" but you never assign it a value.  Try inserting the line:
separator = " ";

Another way to do it (the way I would do it) is something like this:
int  len = answer.length();
int separated = 0;
for (i = 0; i < len; i++)
if (separated == 0)
if (answer[i] == ' ')  // one blank space between apostrophes
separated = i;
else  verb[i] = answer[i];
else noun[i - separated - 1] = answer[i];

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C++ Problem (Trying to split a string)?

2 Answers