How to get size of a character

[TheDomesticUser2]

Hello. Currently, I am creating a game called Hangman. Whenever the program asks the user to pick a number, if he/she enters a character more than one letter, the program outputs multiple times. How do I make it check if the length of the character equals one?

#include <iostream>

using namespace std;

int main()
{
	char input;
	
	cout << "Please enter a character" << endl;
	cin >> input; // I would like to get the size of the character
	
	return 0;
}

[SECMoG1T]

if you just need 1 character from the stream you can just throw away the rest if you don't need them.

#include <iostream>

using namespace std;

int main()
{
	char input;
	
	cout << "Please enter a character" << endl;
	cin >> input; //get one  character only
        cin.ignore(1000,'\n');//throw away the rest.

        cout<<input;//display the character.
	
	return 0;
}

if your input can at times require more than one character, then char might not be the best type, you might consider std::string or something else