std::string_view causing unexpected memory access issues in C++17
I'm stuck trying to I'm testing a new approach and I'm working with a segmentation fault when using `std::string_view` in my C++17 application... The scenario arises when I'm passing a `std::string_view` to a function after the original string has gone out of scope. Here's a simplified version of my code: ```cpp #include <iostream> #include <string> #include <string_view> void printStringView(std::string_view sv) { std::cout << sv << std::endl; } void exampleFunction() { std::string str = "Hello, World!"; std::string_view sv = str; printStringView(sv); } int main() { exampleFunction(); // str goes out of scope here printStringView(sv); // This line causes segmentation fault return 0; } ``` In this code, I attempted to use `std::string_view` to avoid unnecessary copying of the string data. However, after `exampleFunction` returns, the `std::string` object `str` goes out of scope, leading to `sv` pointing to invalid memory. I expected it to work without issues, especially since `std::string_view` is designed to be lightweight. I initially tried storing the string in a longer-lived context and passing it around, but it seems cumbersome for my use case. Is there a best practice for using `std::string_view` safely in scenarios like this? How can I avoid these access violations without resorting to raw pointers? I appreciate any insights on managing lifetimes with `std::string_view` effectively. The stack includes C++ and several other technologies. Any suggestions would be helpful.