From DSRC to 5G NR-V2X: The Road Ahead for Connected Vehicles

Why C++23 is a Game Changer: std::expected

Modern C++ is moving away from clunky, slow error handling. In C++23, we finally have a way to return either a value or an error without the overhead of try-catch blocks.

#include <expected>
#include <string>

// C++23 way to handle potential failures
std::expected<int, std::string> divide(int a, int b) {
    if (b == 0) 
        return std::unexpected("Cannot divide by zero!");
    return a / b;
}
        

The 3 Major Advantages

• Zero Exceptions: No more "crashing" the program or using slow try-catch logic.
• Type Safety: The compiler forces you to acknowledge the possibility of an error before you can access the result.
• Better Performance: It is significantly faster than traditional exception handling, making it ideal for high-performance systems and Arduino/Embedded development.

"Strong C++ programming isn't just about making things work; it's about making them safe and efficient using the latest standards."