Question 1

How to learn C++20 coroutines effectively?

Accepted Answer

This guide provides a basic introduction with examples, but coroutines involve complex mechanics like promise types and suspend points. For mastery, supplement with resources like cppcoro library documentation or dedicated tutorials that cover state management and real-world use cases.

Question 2

What are the key differences between C++17 and C++20?

Accepted Answer

The project lists features for each standard; C++20 introduces major additions like coroutines for asynchronous programming and concepts for template constraints, while C++17 focuses on utilities like std::variant and structured bindings. Compare the sections to see evolution in concurrency and meta-programming capabilities.

Question 3

Is modern-cpp-features better than cppreference.com?

Accepted Answer

They serve different purposes: modern-cpp-features offers a concise cheatsheet with practical examples for quick reference, while cppreference.com provides exhaustive, formal documentation with detailed specifications. Use this for fast lookups and cppreference for in-depth technical details.

Question 4

How to use modern C++ features in a legacy C++98 codebase?

Accepted Answer

Start by incrementally adopting features like auto from C++11 or smart pointers, ensuring compiler support. This guide helps identify new features, but for migration, focus on backward-compatible additions and refactor gradually, testing for compatibility with older code.

Question 5

What C++23 features are already supported in GCC or Clang?

Accepted Answer

The project documents the features, but for compiler support, check the official GCC or Clang release notes or sites like cppreference.com for implementation status, as support varies by version and platform, and some features may be experimental.

Question 6

How to implement a custom formatter for std::format in C++20?

Accepted Answer

The README includes an example for std::formatter specialization, showing how to define parse and format methods for a custom type like fraction. For edge cases like formatting user-defined classes with complex logic, refer to the standard library specifications for additional guidelines.

Modern Cpp Features

What is Modern Cpp Features?

Overview

Use Cases

Best For

Related Projects

Found a gem we're missing?

Not Ideal For

Pros & Cons

Pros

Cons

Frequently Asked Questions