How to append a char type variable to a string?

Question

I want to append a char-variable containing the password to a string saying "Your password is: ". When I use the append function for this I get an error saying I can't use this function with string. (I can only use it with unsigned int and char.)

char pass[64];
std::cout << "Enter a password: "; fgets(pass, 64, stdin);    
std::string ssifre = "Your password is: "; ssifre.append(sizeof(pass), pass);

If you know another way to solve this, please comment. I don't need to use this function.

Answer 1

This should work:

ssifre += pass;

It's using the += operator

(note that as @MichaelDoubez mentionned in the comments, ssifre.append(pass) would work, too.)