How do I use std::string_view safely to avoid dangling in C++?

In this guide, we will explore how to use `std::string_view` safely to avoid dangling references in C++. We will discuss the nature of `std::string_view` and provide an example demonstrating its correct usage.
C++, std::string_view, dangling references, safe usage, string handling 

#include <iostream>
#include <string>
#include <string_view>

int main() {
    std::string str = "Hello, world!";
    std::string_view sv = str; // sv points to str's data

    std::cout << sv << std::endl;

    // If str goes out of scope, sv will dangle
    return 0;
}
To safely use `std::string_view`, ensure that the underlying string remains in scope as long as the `string_view` is used. A common practice is to keep the `std::string` alive as long as you need the `std::string_view`.

C++ std::string_view dangling references safe usage string handling

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