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C++ is a statically typed, free-form, multi-paradigm, compiled, general-purpose programming language. This tag should be used for any question which requires knowledge or expertise with the C++ programming language. This is a general tag which is used for any of the C++ language standards (C++98, C++11, C++17, etc.). The question should identify the compiler being used, the operating system, and which of the C++ standards is being targeted.

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I'm implementing a MinMaxStack<T> in C++20 that tracks minimum and maximum values. The class needs T to support ...
sam's user avatar
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I'm fairly new to C++, and I'm trying to improve my skills. I'd appreciate it if you could take a look at my project and share any feedback or suggestions. It's a small database implementation written ...
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7 votes
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I’m implementing a templated LRU cache in C++17 and C++20. High-level design: Recency: ...
sam's user avatar
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6 votes
2 answers
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I never remember without looking how to write RB or AVL balancing. but I wanted to make sure I would be able to still write a reasonable dynamically balanced binary tree. If it is asked of me in ...
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4 answers
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First C++ project: write a hash set for a specific scenario where I only need inserts and containment checks. This is not AI slop, everything except for the avalanche function is hand written. Please ...
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3 votes
0 answers
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I originally titled my last question as a Unit Test and there was a comment that it was a integration test rather than a unit test. I will say this, indi that comment was an answer and you could have ...
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6 votes
1 answer
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I've written a MQTT client for embedded system with RTOS (understand not POSIX, generally FreeRTOS). There's no pthread in the system. There's only 32 bits atomic instructions supported. The client ...
xryl669's user avatar
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10 votes
2 answers
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This is a follow-up question for SIFT Keypoint Detection for Image in C++. With the detected SIFT keypoints of images, image stitching is possible to perform. In this post, the first step is to ...
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4 votes
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I need to write code that contains a lot of checks for sequences in a list of the form: ...
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11 votes
4 answers
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I'm building this code for my students, so I'd like any comments about modern C++ and whether it is pedagogic. And of course if you find any logic error. Basic exercise is to count word frequency in a ...
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2 answers
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I wrote a simple reference counted smart pointer. The reference count is supposed to be inside the object it owns (not the smart ptr itself, like std::shared_ptr) ...
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2 votes
2 answers
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Consider the following (C++20) function (from the solution to this StackOverflow question): ...
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2 votes
1 answer
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I was recently working on my CUDA wrappers library, and this particular class is one of the oldest pieces of code in the entire project. Since that time, I added tons of other features (for example <...
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0 answers
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As noted by @TobySpeight in his answer to Polymorphic data models that save data to MySQL and restore data from MySQL the test code should also be reviewed. His ...
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12 votes
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When I discovered that CUDA device memory was represented by plain old void* I was horrified by having to deal with C-style type safety and resource ownership (i.e. ...
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