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PatrickPreaf on A History Of Rome12/30/2024
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Charlesdrafe on A History Of Rome12/30/2024
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PatrickPreaf on A Twitter12/30/2024
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Charlesdrafe on A Twitter12/30/2024
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What is the fastest way to upcast std::shared_ptr<std::unique_ptr<T>>?
12/30/2024 by Andreev Gregory
Suppose class D is derived from class B. What is the best way to convert a std::shared_ptr to std::shared_ptr? The solution should not increment / decrement the std::shared_ptr counter and should not make copy of the std::unique_ptr. The naive approach does not work: #include struct B { virtual void msg() […]
Clang: constexpr variable must be initialized by a constant expression, but function is constexpr
12/30/2024 by Eliv_
The title is too short for the whole story. I am not a native English speaker, I apologize for any typo or wierd expression. I was learning magic_enum and trying to implement static enum reflection myself when I came across this issue. The code is too long to paste here: […]
Why doesn't RSS memory decrease when freeing memory in C++ with a thread pool? [duplicate]
12/30/2024 by Bleach3269
I'm working with a C++ code snippet that utilizes a thread pool to execute multiple tasks. In each task, I create a std::vector with 3 million elements. However, I'm noticing that the RSS (Resident Set Size) does not decrease after the tasks complete. #include "BS_thread_pool.hpp" #include #include #include #include int […]
Issues while compiling BMI270 component in ESP-IDF
12/30/2024 by Ashfaque Khan
I have added the bmi270 component using the component manager in esp-idf (vscode extension) and the buidl works , but when I add any program from the expamples, in the main.c , it doesnt build and gives error. Probably becuse of how I am setting the CMake file. Please help […]
invalid use of non-static member function arduino IDE ESP32 Wifi [duplicate]
12/30/2024 by Crouser7
I am trying to convert my basic library that handles my wifi connection on my fleet of IoT EPS32 to a library that uses a class, to be able to use callbacks and more structured data exchange between multiple libraries. When moving my "Setup" function into the class i get […]
Long decimal point
12/30/2024 by Vlad Raileanu
I've created an algorithm to do long division in C++, but I can't figure out how to place the decimal point properly. I'm beginning to think I need to redo the algorithm. std::string LoneFunctions::divideDecimalStrings(const std::string& num1, const std::string& num2, int precision) { int stringDP1 = LoneFunctions::findCh('.',num1); int stringDP2 = LoneFunctions::findCh('.',num2); […]
How can I get column property names in different languages?
12/30/2024 by davecupper
Suppose the PC has English and Spanish languages installed. How do I get the text strings for a property column heading in both English and Spanish? For example, how could I get the heading for either the canonical name "System.ItemNameDisplay" or the PROPERTYKEY PKEY_FileName in both English and Spanish. Currently, […]
Should an rvalue parameter always get moved?
12/30/2024 by Caglayan Dokme
I've got the below piece of code that causes a warning with clang-tidy. void process(const std::vector &buffer) { // ... process the message ... } void process(std::vector &&buffer) { // Warning: rvalue reference parameter 'buffer' is never moved from inside the function body [cppcoreguidelines-rvalue-reference-param-not-moved] process(buffer); } What is the best […]
Why aren’t cookies and cache persisting in QWebEngineProfile (Qt 6.8.1)?
12/30/2024 by Jesus Coder
I’m currently developing a browser-like application using Qt 6.8.1 and C++. My goal is to enable persistent cookies and cache so that website logins (e.g., Gmail or Microsoft accounts) remain active after restarting the application. However, despite my setup, cookies are not preserved, and all logins are forgotten. I’ve implemented […]
Why should we directly include the header declaring a symbol? [closed]
12/30/2024 by Caglayan Dokme
I'm using clang-tidy v20.0 for static analysis and I'm in trouble with the misc-include-cleaner check. In every source file, I get a warning due to indirect inclusion of headers. For instance, when using struct timeval I include but it's actually defined in which is included by . clang-tidy shows two […]

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