ngcpp

ngcpp / proxy

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Proxy: Next Generation Polymorphism in C++

ngcpp.github.ioproxyspec battle-tested cpp20 cpp23 cpp26 design-pattern
52
3
100% credibility
Found Feb 03, 2026 at 12 stars 4x -- GitGems finds repos before they trend. Get early access to the next one.
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AI Analysis
C++
AI Summary

Proxy is a modern C++ library that simplifies runtime polymorphism by allowing different object types to be used interchangeably without inheritance, offering efficient lifetime management and high performance.

How It Works

1
🔍 Discover Proxy

You come across Proxy, a helpful tool that makes it super easy to mix and match different kinds of data in your programs without the usual headaches.

2
📖 Explore the guide

You read the friendly quick start and see simple examples of how everyday data like strings, numbers, and shapes can work together seamlessly.

3
✨ Try the Hello World

You grab a tiny example, run it, and watch in amazement as different data types print out perfectly like magic.

4
➕ Add to your project

You simply copy the library files into your work folder and start wrapping your data with Proxy's helpful features.

5
🎨 Build flexible features

You create rules for things like drawing shapes or formatting numbers, and Proxy makes them all behave the same way effortlessly.

🚀 Enjoy smooth results

Your program handles variety with lightning speed, automatic cleanup, and way less hassle, feeling powerful and simple.

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Star Growth

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AI-Generated Review

What is proxy?

Proxy delivers next-generation polymorphism for C++20, letting you treat diverse objects interchangeably without inheritance or vtables. Drop it into your code as a header-only library to create smart proxies that wrap raw pointers, unique_ptrs, or values, handling lifetimes efficiently like a lightweight GC while staying zero-overhead. Developers get polymorphic expressions—functions, operators, conversions—that work seamlessly across types, portable even to freestanding environments like kernels.

Why is it gaining traction?

It outperforms traditional virtual inheritance and wrappers like std::any or unique_ptr hierarchies in benchmarks for creation, invocation, and relocation, often matching raw code speed. Non-intrusive design means no base classes required, with intuitive builder syntax for facades defining behaviors like formatting or streaming. Backed by Microsoft engineers (used in Windows since 2022), it ports easily via vcpkg/conan, with strong diagnostics and C++ proposals pushing standardization.

Who should use this?

C++ systems programmers replacing brittle vtable chains in game engines or OS components. Embedded devs needing polymorphism without runtime bloat. Library authors building type-erased APIs, like drawable entities or configurable handlers, tired of inheritance maintenance.

Verdict

Grab this github proxy repo if polymorphism blocks your C++20 project—it's mature in docs, benchmarks, and CI despite 28 stars and 1.0% credibility score signaling early adoption. Test it via Godbolt examples; skip for pre-C++20 or if std::variant suffices.

(198 words)

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