Category: C++
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Why Does Processing a Sorted Array Run Faster Than Processing an Unsorted Array?
As a C++ and Java developer, I’ve always been fascinated by how seemingly minor changes in data organization can lead to significant differences in performance. Recently, I came across an interesting observation: sorting an array before processing it can significantly speed up the computation, despite the additional cost of sorting. Let’s delve deeper into this…
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Why No Linker Error for Incorrect Return Type in Forward Declared Function?
Understanding Forward Declaration and Inconsistent Function Prototypes in C++ In today’s exploration of C++ programming, I stumbled upon an intriguing issue while working with two separate source files: a.cc and b.cc. This curiosity arose when I noticed that I had inadvertently forward-declared a function in a.cc with a different signature than its actual definition in…
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Creating a Cocoa Window Using Pure C++
Tackling Integration Challenges Between C++ and Cocoa on macOS Integrating C++ with Cocoa for macOS development presents unique opportunities and challenges. Cocoa primarily leverages Objective-C, so combining it with C++ isn’t straightforward. Here, I’ll share my journey trying to bridge these two worlds—focusing on my attempts to maintain a pure C++ environment with a .cpp…
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Troubleshooting C++ SOEM EtherCAT: Dealing with ‘No Adapter Found’ Issue on Windows 11 with Visual Studio and Vcpkg
Diagnosing Adapter Detection Issues in SOEM with VS2022 Having ventured into setting up the Simple Open EtherCAT Master (SOEM) system using Vcpkg and Visual Studio 2022, I encountered an intriguing issue where the EtherCAT adapter is not found despite all checks and setups appearing correct. My goal was simple: to successfully initiate communication between my…
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Prevent run-clang-tidy from Inspecting Downloaded Source with FetchContent
Excluding FetchContent Sources from Clang-Tidy in CMake Navigating the complexities of modern C++ project configurations can often feel like treading through a maze. One such complexity arises when integrating tools like Clang-Tidy into a project managed with CMake, particularly when combined with the FetchContent module. Today, let me walk you through a promising approach to…
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Unlocking Publisher Data with ROS
Diagnosing PWM Value Issues in ROS Based Motor Control System Recently, I encountered an intriguing issue while working on a robotic project that involves a ROS (Robot Operating System) based system interfaced with an Arduino for motor control. The core problem revolved around an unusual observation where the output of a PWM (Pulse Width Modulation)…
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Running Cron as a Subprocess in C++ Application
Implementing a Custom Cron Subprocess in an Application In the quest to integrate seamless scheduling into my application, I have explored the potential of using the cron syntax, a powerhouse for time-based job scheduling in Unix-like systems. The idea of spawning a separate cron daemon as a subprocess in my application not only pays homage…
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Using ODEint in C++: A Practical Guide
Debugging Runtime Errors in Time March Simulation Using Boost ODEINT and Eigen Recently, while working on an aircraft dynamics simulation project using the Boost ODEINT library integrated with the Eigen library for vector and matrix operations, I faced a vexing runtime error that had me scratching my head. In this post, I’d like to share…
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Exploring the Differences Between C++ Arrays and Lists
Creating a Multiplication Table in C++ The task at hand requires developing a C++ program that performs several operations with numbers derived from an algebraic expression. The objective of the program will be to create a multiplication table from a sequence of numbers generated by an algebraic formula, organize this data into a sorted list,…