Add .reset() term for smart pointers in C++ #6913
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Hi I’m new to C++ and haven’t worked with it before. I chose this topic as my first entry because, unfortunately, other topics that felt closer to me were already claimed, so I picked one that seemed more approachable. Thanks!🌸🙏 |
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Earlier, when my contribution was being reviewed, I was asked: “Is this your first contribution to Codecademy Docs? If so, we’re curious to know how you found out about contributing to Docs.” I found out about contributing to Docs only thanks to your excellent iOS Career Path course, where I came across this assignment. I’m incredibly grateful for this amazing course and the wealth of knowledge I’m gaining through it. Codecademy team, you are the best! A huge thank you to the entire team from a sincere beginner❤️ |
mamtawardhani
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c++
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Hey @sofiadanaile, thank you for contributing to Codecademy Docs, the entry is nicely written! 😄
I've suggested a few changes, could you please review and modify those at your earliest convenience? Thank you! 😃
| title: .reset() | ||
| description: Releases ownership of the managed object and optionally takes ownership of a new object. |
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Can you rewrite this in the following format:
Title: '.reset()'
Description: 'Releases ownership of the managed object and optionally takes ownership of a new object.'
Subjects:
- 'Code Foundations'
- 'Computer Science'
Tags: - 'Containers'
- 'Pointers'
CatalogContent: - 'learn-c++'
- 'paths/computer-science'
| ### .reset() | ||
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| The `.reset()` method is used with **smart pointers** in C++ (such as `std::unique_ptr` and `std::shared_ptr`). It releases ownership of the currently managed object and, optionally, replaces it with a new one. | ||
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| This method helps prevent memory leaks by ensuring the previously managed object is properly deleted when it's no longer needed. |
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| ### .reset() | |
| The `.reset()` method is used with **smart pointers** in C++ (such as `std::unique_ptr` and `std::shared_ptr`). It releases ownership of the currently managed object and, optionally, replaces it with a new one. | |
| This method helps prevent memory leaks by ensuring the previously managed object is properly deleted when it's no longer needed. | |
| The **`.reset()`** method is used with smart pointers in C++ (such as `std::unique_ptr` and `std::shared_ptr`). It releases ownership of the currently managed object and optionally takes ownership of a new one. | |
| This method safely manages dynamic memory by deleting the previously managed object (if any), thereby helping to prevent memory leaks. |
| smart_pointer.reset(); // Releases ownership of the current object | ||
| smart_pointer.reset(new Type()); // Deletes current object and takes ownership of the new one |
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| smart_pointer.reset(); // Releases ownership of the current object | |
| smart_pointer.reset(new Type()); // Deletes current object and takes ownership of the new one | |
| ptr.reset(); // Releases ownership and deletes the managed object | |
| ptr.reset(new_ptr); // Replaces the managed object with a new one |
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| ## Syntax | ||
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| ```cpp |
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| ```cpp | |
| ```pseudo |
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syntax is added in pseudo block
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| return 0; | ||
| } | ||
| ``` | ||
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can you also add the output block wrapped in the shell block
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| ## Codebyte |
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| ## Codebyte | |
| ## Codebyte Example |
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| ## References | ||
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| - [`std::unique_ptr::reset()` - cppreference.com](https://en.cppreference.com/w/cpp/memory/unique_ptr/reset) | ||
| - [Codecademy C++ Course](https://www.codecademy.com/learn/learn-c-plus-plus) | ||
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| ## References | |
| - [`std::unique_ptr::reset()` - cppreference.com](https://en.cppreference.com/w/cpp/memory/unique_ptr/reset) | |
| - [Codecademy C++ Course](https://www.codecademy.com/learn/learn-c-plus-plus) |
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References are not required, and can be deleted
| #include <iostream> | ||
| #include <memory> | ||
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| int main() { | ||
| std::shared_ptr<std::string> message = std::make_shared<std::string>("Hello from Codecademy!"); | ||
| std::cout << "Message: " << *message << std::endl; | ||
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| message.reset(); // Releases ownership of the managed string | ||
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| if (!message) { | ||
| std::cout << "The pointer has been reset." << std::endl; | ||
| } | ||
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| return 0; | ||
| } |
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keep the indentation to two spaces only
mamtawardhani
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status: review 1️⃣ completed
status: waiting for author
and removed
status: under review
…utput block, and improved formatting as per review feedback
…into term-reset-cpp
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Hi! 🌸 I’m happy to make any further changes if needed! <3 |
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thank you @sofiadanaile for the changes 😄
The entry looks good for a second round of review! 🚀
mamtawardhani
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status: ready for next review
and removed
status: waiting for author
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👋 @sofiadanaile 🎉 Your contribution(s) can be seen here: https://www.codecademy.com/resources/docs/cpp/pointers/reset Please note it may take a little while for changes to become visible. |
Sriparno08
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status: review 2️⃣ completed
and removed
status: under review
Description
Created a new entry for the .reset() C++ smart pointers (std::unique_ptr and std::shared_ptr). Explained the purpose, syntax, and provided examples.Issue Solved
Closes #6868Type of Change
Checklist
mainbranch.Issues Solvedsection.