Is there an analogue of str.charCodeAt(index) for C++?

Question

JavaScript

Need an analogue of charCodeAt from js for C++. If not, please tell me how to do the same in C++. Give an example if possible.

Answer 1

For a regular string:

std::string s("foo");
int code = s[0]; // 102

Answer 2

"For C++" is too vague.
If we are talking about single-byte strings (char[], char* or std::string), then str[idx] will be the value you need.
But only if the content is in the same single-byte encoding.
And if there, say, utf-8, then here you are unlikely to do without the appropriate library.

Answer 3

ord(str[idx]) not?