How can I cin a char with multiple words?

Question

I tried looking on the internet but I've not seen an answer.

So I have to cin a char with multiple words, like "Cars have four wheels." And I need to take every word and cout him. I learned at school that you can do this:

char a[100][20];
cin.getline(a, 100);

But it doesn't work. What's the proper way to cin a char with multiple words separate by a space;

This is the exact code with the error

Does [this](https://stackoverflow.com/questions/5838711/stdcin-input-with-spaces) help? Or, if you _have_ to use `char` arrays instead of `std::string`... Are you sure school said that you can call `getline` on an array of arrays? — Nathan Pierson, Nov 10 '21 at 15:53
`std::string word; while (std::cin >> word) { std::cout << word << '\n'; }` — Some programmer dude, Nov 10 '21 at 15:55
As for your error, `a` is an array *of arrays* of characters. while `cin.getline()` expects an array of characters. I.e. something like `a[0]` or `a[1]`. — Some programmer dude, Nov 10 '21 at 15:55
Please [edit] this question to include the code and error you are talking about, as actual text. This question will lose all value once imgur decides to delete that image. — Drew Dormann, Nov 10 '21 at 16:01
https://meta.stackoverflow.com/questions/285551/why-not-upload-images-of-code-errors-when-asking-a-question — Marek R, Nov 10 '21 at 16:22
`a` has wrong type `char[100][10]`, which can't be implicitly converted to `char *` expected by `cin.getline`! — Marek R, Nov 10 '21 at 16:23

score 0 · Answer 1 · answered Nov 10 '21 at 17:50

You can try using std::istringstream for parsing the words.

std::vector<std::string> word_database;
std::string text_line;
while (std::getline(std::cin, text_line))
{
    std::string word;
    std::istringstream text_stream(text_line);
    while (text_stream >> word)
    {
        word_database.push_back(word);
    }
}

In the above code, one line of text is input to the text_line variable.

An istringstream is created using the line of text. The "words" are extracted from the text stream using operator>>. The words are appended to the database.

How can I cin a char with multiple words?

1 Answers1