how do I compare a character with a string? - c++

Question

#include <iostream>
#include <string>//needed to make string array
#include <fstream>//Needed for redaing in from external file
#include <cstdlib>//needed for rand() function (for random word)
#include <ctime>//needed for time() funtion to seed rand()
using namespace std;
/*
April 25,2020
This program will take read in a random word from an external file and use it for a game of hang man */
void greeting();
void wordPick();
int main()
{
char playAgain;
int tries;
char playerGuess;
string secretWord;
greeting();
ifstream inFile("randwords.txt");
if (inFile.is_open())
{
string wordlist[10];
for(int i = 0; i < 10; ++i)
{
inFile >> wordlist[i];
}
srand(time(0));
string secretword = wordlist[rand() % 10];
cout << secretword << endl;
inFile.close();
}
//wordPick();
//ask user to guess a letter
cout << "Please guess a letter: " << endl;
cin >> playerGuess;
if (playerGuess == secretWord[0])
{
cout << "Thats correct!" << secretWord [0];
}
else if (playerGuess == secretWord[1])
{
cout << "thats correct!" << secretWord[1];
}
else if (playerGuess == secretWord[2])
{
cout << "Thats correct!" << secretWord[2];
}
cout << "Do you want to play again? Y or N: ";
cin >> playAgain;
while (playAgain != 'Y' && playAgain != 'y' && playAgain != 'N' && playAgain != 'n')
{
cout << "Invalid, please enter Y or N: ";
cin >> playAgain;
}
return 0;
}
void wordPick()//reads in external file and puts it in an array for a library of words to randomly choose
{
ifstream inFile("randwords.txt");
if (inFile.is_open())
{
string wordlist[10];
for(int i = 0; i < 10; ++i)
{
inFile >> wordlist[i];
}
srand(time(0));
string secretword = wordlist[rand() % 10];
// cout << secretword << endl;
inFile.close();
}
}
void greeting()//welcomes the player to the game and starts the game
{
string name;
cout << "Hello, Player welcome to Hangman! " << endl;
cout << "What should I call you?" << endl;
cin >> name;
cout << "Hello " << name << ", in this game you will try to guess a random 3 letter word." << endl;
cout << "You will have at least 6 ties to guess the word or else the drawing will complete. Good luck!" << endl;
What I am attempting to do is to check if the char playerGuess is one of the characters in string secretWord, but it isn't outputting the letter even if it is correct. Maybe there is an easier way to compare that I'm just missing?
I thought since this still compares that it should work, but it's just ending the program after guessing the letter.

Answer 1

You assigned the randomly chosen word to secretword (with small w), but the judge is based on secretWord (with large W), to which no word is assigned.
The part
string secretword = wordlist[rand() % 10];
cout << secretword << endl;
should be
secretWord = wordlist[rand() % 10];
cout << secretWord << endl;
Also note that you mustn't declare secretWord in the if block, or the assignment won't be visible to the judge part.