Question

I have for example the following piece of code:

string str;
int i;
cout<<"input:";
cin>>str;
cout<<"integer:";
cin>>i;

There is actually nothing wrong with this code, but if I paste some text into the command prompt in “input”, it automatically fills some of the copied text into “integer”. How can I solve this?

Edit: I can type texts as long as I want, but when I copy texts it goes wrong. I don’t know why.

Answer 1

I guess, your text contains white spaces. So, std::cin will not work here. Use std::getline instead.

std::string str;
std::getline( std::cin, str );

There’s a third parameter of std::getline – delimiter. By default, it’s the new line char.

---

If your text does contain new line chars, than this will not work. You have 2 options:

• find unique char, that may be used as delimiter and pass it as third parameter of std::getline
• read line by line (using std::getline) from the user input (std::cin) and look for some special string, that will tell your program where the text ends. There’s no other way to know where does the integer start (unless the text is with fixed size, but I doubt that)