cpp
C++ programming language and native development
Why processing a sorted array is faster: fewer branch mispredictions, improved vectorization and cache locality. C++/Java benchmarks and fixes. Practical fixes.
Explore the C++11 memory model, its impact on multithreading, std::atomic, memory_order (seq_cst, acquire/release, relaxed), happens-before, data races, and hardware mappings for safe concurrent C++ programming.
Discover why Android native malloc allows 1GB+ overcommit beyond RAM without access, but lmkd kills the process during memset due to page faults and PSI pressure. No low memory callbacks; debug with mallinfo and heapprofd.
Learn how to check if a key exists in std::map using find, contains (C++20), count, and fix equal_range errors. Avoid operator[] inserts with code examples and best practices for C++ map lookups.
Resolve Eclipse CDT 'Invalid arguments' errors for Dear ImGui functions like ImGui_ImplOpenGL3_NewFrame() in Makefile projects. Add impl files, define macros, rebuild index for perfect indexing.
std::steady_clock::now() returns a global monotonic time point comparable across C++ threads, but now1 < now2 doesn't imply execution order or happens-before between operations like store and load in multithreading.
Resolve C++ 'undefined reference to' errors when one .cpp file can't access functions from another. Learn header declarations, proper linking with g++, makefiles, IDE setup, and common pitfalls for multi-file compilation.
Why OpenCV template matching fails for C++ object detection and how to fix it: multi-scale, edge preprocessing, robust thresholds, or feature-based methods.
Learn to detect system clock tampering and time jumps in C++20 for cross-platform security agents. Use std::chrono::system_clock vs steady_clock polling, Windows Event ID 4616, Linux timerfd for reliable protection against clock manipulation.
SFRegT with compile-time and runtime register addresses using SFINAE, if constexpr, and partial specialization. Code examples, patterns, and trade-offs.
Step-by-step guide to implement undo and redo functionality in a C++ text editor using gap buffer data structure. Beginner tips, code examples, best practices, and performance optimization for efficient editing.
C++ coroutines materialize temporaries into the coroutine frame and store references there, so references to them remain valid across suspension. Key rules.
Compare C++ vs Rust future prospects, performance, memory safety, ecosystem, jobs. C++ remains dominant with vast ecosystem; Rust grows in safety-critical areas. Learn C++ for broad jobs, Rust for modern systems and long-term edge.
Obtain the QQmlEngine that created a registered C++ QML type using qmlEngine(this) or QQmlEngine::contextForObject(this). Includes concise code example and tips.
Fix the 'deduced type void for err is incomplete' error with boost::asio::async_compose. Complete guide with examples and best practices.
Complete guide to fixing MSVC C1001 internal compiler error when building C++ modules with glaze JSON library in Visual Studio 2022. Workarounds and solutions included.
Learn efficient methods to split a cli::array<Byte>^ in C++/CLI into the first 16 bytes and remaining bytes using Array::Copy, ArraySegment, or pin_ptr.
Learn how to resolve dependency version conflicts in Conan 2.0 when libraries require different libcurl versions. Step-by-step guide using override feature.
Improve C++/CLI code for Base64 encoding in Visual Studio. Refactor repetitive code, enhance readability, and boost efficiency. Best practices included.