vector - C++ read in a line of string as ints? -

i trying read line of string characters numbers (e.g "30 40 50 20") , put them vector. need avoid empty space , newlines. when read input, doesn't see string "30", sees characters "3" , "4".

void input() {         getline(cin,line, '\n');         (int = 0; < line.length(); i++) {             if (! (isspace(line[i]))) {                 cout << line[i] << ", ";                     scores.push_back(line[i]);//(atoi(input));             }         }         cout << scores.size() << "! ";     } 

a line "30 40 50" won't give vector size of 3, give size of 6. optimal ways around issue?

edit: should have clarified in original message challenge, in unable include string stream library in original case.

i think you're doing right thing grabbing whole line before parsing, otherwise bit of pickle. have parsing. right you're pulling out individual characters.

the following isn't optimal it'll started — continue using formatted stream extraction, isolated line file.

so:

void input() {     getline(cin, line, '\n');     istringstream ss(line);      int val;     while (ss >> val)       scores.push_back(val);      cout << scores.size() << "! "; }