---
title: "Discussion on \"💥 The Tiny “#” Mistake That Broke My C++ Code (and What I Learned From It)\" | Hashnode"
description: "Discussion on \"💥 The Tiny “#” Mistake That Broke My C++ Code (and What I Learned From It)\". Discover the subtle difference between string literals and std::string in C++. Understand how \"#+count\" triggers pointer arithmetic, why it leads to undefin"
url: "https://hashnode.com/posts/the-tiny-mistake-that-broke-my-cpp-code-and-what-i-learned-from-it/68e17ad899af72b00afe0a41"
---

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# [💥 The Tiny “#” Mistake That Broke My C++ Code (and What I Learned From It)](https://debugcpp.hashnode.dev/the-tiny-mistake-that-broke-my-cpp-code-and-what-i-learned-from-it?utm_source=hashnode&utm_medium=feed)

Discover the subtle difference between string literals and std::string in C++. Understand how "#+count" triggers pointer arithmetic, why it leads to undefin

Oct 4, 2025 · 4 min read · debugcpp.hashnode.dev  
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## Written by

[Anish Tilloo](https://hashnode.com/@anishtilloo)

@anishtilloo · Nagpur, India

  
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Designing the future with code

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