Convert first letter in string to uppercase

Question

I have a string: "apple". How can I convert only the first character to uppercase and get a new string in the form of "Apple"?

I can also have a string with multibyte characters.

What if the first character of the string is a multibyte character ?

Answer 1

string str = "something"; str[0] = toupper(str[0]); 

That's all you need to do. It also works for C strings.

Answer 2

Like what Carneigie said,

string str = "something"; str[0] = toupper(str[0]); 

but also remember to:

#include <string> #include <cctype> 

all the way up