Add the introductory blogpost of Petro Zarytskyi

Author: PetroZarytskyi

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.github/actions/spelling/allow/terms.txt

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_posts/2025-07-31-object-oriented-paradigms.md

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+---
+title: "Improve automatic differentiation of object-oriented paradigms using Clad"
+layout: post
+excerpt: "A GSoC 2025 contributor project aiming to enhance Clad's ability to differentiate through OOP and STL constructs by supporting functions with side-effects."
+sitemap: false
+author: Petro Zarytskyi
+permalink: blogs/2025_petro_zarytskyi_introduction_blog/
+banner_image: /images/blog/gsoc-banner.png
+date: 2025-07-31
+tags: gsoc c++ llvm clang root automatic-differentiation
+---
+
+### Introduction
+Hi! I'm Petro Zarytskyi, and I’m a Ukrainian Mathematics student at the University of Würzburg, Germany. I’ve been programming in C++ for the past 4 years, and I’m especially interested in compiler research and static analysis. I'm very excited for the project!
+
+### Project description
+The project addresses a limitation in Clad, a Clang plugin for C++ automatic differentiation, which currently cannot fully support non-trivially copyable types, restricting its use in Object-Oriented Programming. I'm going to enhance Clad's reverse mode differentiation by modifying its forward sweep functions to store intermediate values effectively and improving the To-Be-Recorded analysis to handle nested function calls and pointer operations. 
+
+### Project goals
+The main goals of this project are:
+
+- Support functions with side-effects.
+
+- Support non-copyable types like smart pointers.
+
+- Enhance TBR analysis.
+
+- Optimize memory usage.
+
+### Implementation strategy
+- Work on a new system of memory management for `reverse_forw` functions to support functions with side-effects. Improve the `reverse_forw` infrastructure to make it more reliable.
+
+- Improve TBR analysis and make it suitable for OOP. In particular, add support for pointers.
+
+- Work on relevant OOP-related issues to further enhance OOP support.
+
+- Show that the implemented changes enable more support for STL types.
+
+## Conclusion 
+
+The support for functions with side-effects is currently a major blocker for modern Object-Oriented Programming as it limits the usage of many member functions and operators. Having this system successfully implemented will not only add support for storing non-copyable types but will also make storing copyable structures more efficient because only specific parts of them will need to be stored.
+
+### Related Links
+
+- [My GitHub profile]https://github.com/PetroZarytskyi