std::print & std::format (C++23)

Modern formatting and printing with Python-style format strings

Overview

C++23 introduces std::print and std::format for modern, type-safe string formatting. This provides a faster and safer alternative to iostreams and printf.

#include <print>
#include <format>

// Type-safe formatting
std::string s = std::format("Hello, {}!", "World");

// Direct printing
std::print("Value: {}
", 42);

// Format specifiers
std::print("Pi = {:.2f}
", 3.14159);  // Pi = 3.14

Benefits

  • ✓Type-safe at compile time
  • ✓Faster than iostreams
  • ✓Python-style format strings