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Fast Code Guru is a place to discuss software performance and quality from the perspective of computer programmers.

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• Trust, But Verify: A Survival Guide for AI-Generated Modern C++

  Published: Aug 17, 2026

  AI can generate a thousand lines of modern C++ before your coffee cools. Whether that code is correct is another question entirely—because in C++, 'it compiled' and 'it's correct' are separated by a minefield called undefined behavior.

• Trust, But Verify: A Survival Guide for AI-Generated Python Code

  Published: Aug 10, 2026

  Welcome to 2026, where we can generate a thousand lines of Python in the time it takes to brew coffee, but we still can't guarantee it won't bankrupt us.

• The Complete Beginner's Guide to Learning C++ in 2025

  Published: Apr 8, 2025

  In this guide, I'll walk you through starting your C++ journey from scratch, with a focus on free resources, practical learning paths, and the tools that will make your experience smoother.

• Effective Modern C++: Writing Clean, Bug-Free, and High-Performance Code

  Published: Jan 24, 2025

  Today, I want to share my insights on how to leverage modern C++ features to write code that's not only fast but also clean and reliable.

Recent Posts

• The Easy Guide to g++ Command Line Arguments for C++23

  Published: May 30, 2025

  Building Your Canonical Debug and Release Configurations

• Mastering C++ reserve(): The Performance Game-Changer You're Probably Not Using Enough

  Published: May 28, 2025

  After nearly four decades of writing performance-critical C++ code, I've seen countless developers overlook one of the most impactful optimizations hiding in plain sight: the humble reserve() method.

• C++ Prime Number Generator

  Published: May 20, 2025

  Classic and modern prime number generators for C++.

• Modern C++23 Design Patterns for High-Performance Code

  Published: May 19, 2025

  In high-performance C++, design patterns are not just academic exercises – they’re essential tools.