How do i increment letters in c++?

Question

I\'m creating a Caesar Cipher in c++ and i can\'t figure out how to increment a letter.

I need to increment the letter by 1 each time and return the next letter in t

Answer 1

It works as-is, but because the addition promotes the expression to int you want to cast it back to char again so that your IOStream renders it as a character rather than a number:

int main() {
   char letter[] = "a";
   cout << static_cast(letter[0] + 1);
}

Output: b

Also add wrap-around logic (so that when letter[0] is z, you set to a rather than incrementing), and consider case.