What is the C++20 std::format feature?

Can you explain the std::format feature introduced in C++20?

Sure! The std::format feature in C++20 provides a type-safe way to format strings, similar to Python's f-strings.

How does it differ from printf or std::stringstream?

Unlike printf, std::format uses a format string with placeholders and is type-safe, preventing format mismatches.

Can you show me a simple example of using std::format?

Of course! Here's a basic example: std::string result = std::format("Hello, {}! You are {} years old.", name, age);.

Are there any performance benefits to using std::format?

Yes, std::format can be more efficient than traditional methods, especially with complex formatting, due to its compile-time checks.