CODEWITHSUNDEEP
c++
Kilo King
Kilo King

Reputation: 199

Terminating With Whitespace

Instead of writing code like this

while (getline(cin, inputWord))
{
   if (inputWord.empty() || inputWord == " " || inputWord == "  " || inputWord == "   ")return 0;
}

How can I get the user to terminate the program regardless of how many whitespaces are present?

Upvotes: 0

Views: 143

Answers (2)

Maria Ines Parnisari
Maria Ines Parnisari

Reputation: 17496

Make your own function that counts spaces:

int countWhiteSpaces(string input)
{
    // You do it :) Hint: a 'for' loop might do
}

And then use it like this:

while (getline(cin, inputWord))
{
   if (inputWord.empty() || countWhiteSpaces(inputWord) > 0)
      return 0;
}

Upvotes: 1

herohuyongtao
herohuyongtao

Reputation: 50667

Just use

while (getline(cin, inputWord))
{
    if(inputWord.find_first_not_of(' ') == std::string::npos) // all spaces
        return 0;
}

Upvotes: 1

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