Is it safe to use string assignment and compund assignment?

Question

If I have:

#include <string>

std::string myString = "Hello";

then do either:

myString = "Hello World";

or

myString+= " World";

Am I at risk of writing over some other memory?
Do I have to use string functions to add or change the size of the string?

Answer 1

With std::string, that's completely fine as std::string manages its own memory.

With c-style strings using char*, you need to manage your own memory.