C++ - Reddit

JIT Code Generation with AsmJit https://www.youtube.com/watch?v=HkThHWX_lgU https://redd.it/1l9rw57 @r_cpp

Circle questions: open-sourcing timeline & coexistence with upcoming C++ “Safety Profiles”? Hi everyone, I’ve been experimenting with circleand I’m excited about its borrow-checker / “Safe C++” features. I’d love to know more about the road ahead: Sean Baxter has mentioned in a few talks that he plans to publish the frontend “when it’s viable.” Is there a rough timeline or milestone for releasing the full source? Are there specific blockers (funding, license cleanup, MIR stabilization, certification requirements, …) that the community could help with? Congrats to Sean for the impressive work so far! https://redd.it/1l9n64g @r_cpp

The voting on the talks submitted for Meeting C++ 2025 has started! https://meetingcpp.com/mcpp/voting/ https://redd.it/1l9nlit @r_cpp

MBASE, an LLM SDK in C++ MBASE SDK is a set of libraries designed to supply the developer with necessary tools and procedures to easily integrate LLM capabilities into their C++ applications. Here is a list of libraries: [Inference Library](https://docs.mbasesoftware.com/inference/about.html): An LLM inference library built over [https://github.com/ggerganov/llama.cpp](https://github.com/ggerganov/llama.cpp) library for integrating LLMs into programs. Model Context Protocol Library: An MCP client/server library that includes all fundamental features, with support for both STDIO and HTTP transport methods. [Standard Library](https://docs.mbasesoftware.com/index.html): A standard library containing fundamental data-structures and useful utilities such as built-in uuid generation and timers. JSON Library: A lightweight JSON library. Github Repository: https://github.com/Emreerdog/mbase SDK Documentation: https://docs.mbasesoftware.com/index.html https://redd.it/1l9h7gv @r_cpp

Learning OpenGL with CLion instead of Visual Studio The learnopengl website uses Visual Studio for its lessons. Adding the include and lib directories and additional dependencies to the project is easy on VS (project settings → VC++ directories). How do I add those directories to a CLion project? How can I replicate this experience on CLion. There's nothing wrong with VS, and following those lessons on VS has actually been a pleasant experience and I can see why everyone suggests VS. But I'm planning on installing Linux on my old laptop and so I want to try something cross platform. Is it possible? Or am I wrong and CLion isn't meant for something like that? Thanks. https://redd.it/1l93s4z @r_cpp

The impact of generative ai on C devs Last times on my interviews, freshly graduated c devs are sucks at very basic questions about C and overall CS topics. They can send the correct answer on interview questions but they couldnt explain the codes line by line. It is same for everyone? I think it is directly related with gen ai as everyone know and it will gain higher values who is really interested in this area. https://redd.it/1l9294v @r_cpp

around how to prevent this from happening. I cannot see the print Press Enter to exit anywhere. Also, I tried to setup some breakpoints and run debugging and it also does not work My launch.json: {     "configurations":         {             "name": "C/C++: g++.exe build and debug active file",             "type": "cppdbg",             "request": "launch",             "program": "${fileDirname}\\${fileBasenameNoExtension}.exe",             "args": [,             "stopAtEntry": false,             "cwd": "${fileDirname}",             "environment": ,             "externalConsole": true,             "MIMode": "gdb",             "miDebuggerPath": "C:\\Users\\petri\\Desktop\\WORK\\tools\\gcc\\bin\\gdb.exe",             "setupCommands":                 {                     "description": "Enable pretty-printing for gdb",                     "text": "-enable-pretty-printing",                     "ignoreFailures": true                 },                 {                     "description": "Set Disassembly Flavor to Intel",                     "text": "-gdb-set disassembly-flavor intel",                     "ignoreFailures": true                 }             ,             "preLaunchTask": "C/C++: g++.exe build active file"         }     ],     "version": "2.0.0" } https://redd.it/1l9186l @r_cpp

Compile and run c++ code on Visual Studio How complicated can it be to run a simple Hello World program on Visual Studio Code on Windows? What I have done: 1. Download Visual Studio Code 2. Download latest gcc package (https://sourceforge.net/projects/gcc-win64/) 3. Add gcc/bin to my environment variables PATH 4. Confirm that gcc and g++ is found via the cmd C:\Users\petri>gcc -v Using built-in specs. COLLECT_GCC=gcc COLLECT_LTO_WRAPPER=C:/Users/petri/Desktop/WORK/tools/gcc/bin/../x86_64-w64-mingw32/lib/gcc/x86_64-w64-mingw32/14.3.0/lto-wrapper.exe Target: x86_64-w64-mingw32 Configured with: ../gcc-src/configure --host=x86_64-w64-mingw32 --target=x86_64-w64-mingw32 --disable-bootstrap --enable-targets=all --enable-languages=c,c++,lto --enable-seh-exceptions --with-arch=core2 --with-tune=generic --enable-threads=posix --disable-nls --disable-libstdcxx-verbose --disable-libstdcxx-pch --enable-clocale=generic --enable-shared=libstdc++ --enable-static --enable-libatomic --enable-fully-dynamic-string --enable-lto --enable-plugins --enable-libgomp --with-dwarf2 --enable-mingw-wildcard=platform --disable-win32-registry --enable-version-specific-runtime-libs --enable-checking=release --enable-default-compressed-debug-sections-algorithm=zstd --disable-cloog-version-check --enable-cloog-backend=isl --with-gmp=/home/vm/mingw/host/x86_64-w64-mingw32 --with-mpfr=/home/vm/mingw/host/x86_64-w64-mingw32 --with-mpc=/home/vm/mingw/host/x86_64-w64-mingw32 --with-isl=/home/vm/mingw/host/x86_64-w64-mingw32 --with-cloog=/home/vm/mingw/host/x86_64-w64-mingw32 --with-system-zlib=/home/vm/mingw/host/x86_64-w64-mingw32 --with-zstd --prefix=/mingw64-64 --libdir=/mingw64-64/x86_64-w64-mingw32/lib --libexecdir=/mingw64-64/x86_64-w64-mingw32/lib --with-native-system-header-dir=/x86_64-w64-mingw32/include Thread model: posix Supported LTO compression algorithms: zlib zstd gcc version 14.3.0 (GCC) C:\Users\petri>g++ -v Using built-in specs. COLLECT_GCC=g++ COLLECT_LTO_WRAPPER=C:/Users/petri/Desktop/WORK/tools/gcc/bin/../x86_64-w64-mingw32/lib/gcc/x86_64-w64-mingw32/14.3.0/lto-wrapper.exe Target: x86_64-w64-mingw32 Configured with: ../gcc-src/configure --host=x86_64-w64-mingw32 --target=x86_64-w64-mingw32 --disable-bootstrap --enable-targets=all --enable-languages=c,c++,lto --enable-seh-exceptions --with-arch=core2 --with-tune=generic --enable-threads=posix --disable-nls --disable-libstdcxx-verbose --disable-libstdcxx-pch --enable-clocale=generic --enable-shared=libstdc++ --enable-static --enable-libatomic --enable-fully-dynamic-string --enable-lto --enable-plugins --enable-libgomp --with-dwarf2 --enable-mingw-wildcard=platform --disable-win32-registry --enable-version-specific-runtime-libs --enable-checking=release --enable-default-compressed-debug-sections-algorithm=zstd --disable-cloog-version-check --enable-cloog-backend=isl --with-gmp=/home/vm/mingw/host/x86_64-w64-mingw32 --with-mpfr=/home/vm/mingw/host/x86_64-w64-mingw32 --with-mpc=/home/vm/mingw/host/x86_64-w64-mingw32 --with-isl=/home/vm/mingw/host/x86_64-w64-mingw32 --with-cloog=/home/vm/mingw/host/x86_64-w64-mingw32 --with-system-zlib=/home/vm/mingw/host/x86_64-w64-mingw32 --with-zstd --prefix=/mingw64-64 --libdir=/mingw64-64/x86_64-w64-mingw32/lib --libexecdir=/mingw64-64/x86_64-w64-mingw32/lib --with-native-system-header-dir=/x86_64-w64-mingw32/include Thread model: posix Supported LTO compression algorithms: zlib zstd gcc version 14.3.0 (GCC) 5. Download C/C++ Visual Studio Code extension 6. Create helloworld.cpp project 7. Click Add Debug Configuration on VSCode and select g++ 8. Use the following code: #include <iostream> #include <string> int main() {     std::cout << "Press Enter to exit...";     std::cin.ignore(); // ignores one character (could be enough if no buffered input)     std::cin.get();    // waits for user to press Enter     system("pause");     return 0; } 9. Click F5 to run the code. I can see the terminal opening and closing immediately. I cannot wrap my head

Forward Declaration question I have a legacy project I'm compiling in Visual Studio 2022. We're using C++ 20. My header file looks like this: #include "stdafx.h" #include "MyObject.h" enum MyObject::MyTypeEnum; class Helper { public: static MyObject::MyTypeEnum GetMyTypeFromString(char* myTypeString); } This used to work. However, when we upgrade to the latest version of VS we get a compile error: 'MyObject::MyTypeEnum': a forward declaration of an enum can only use a simple identifier. I've found a post on the Microsoft developer forum that the change to produce the error is intentional. However, I don't understand how I should change it. Does anyone have any suggestions? https://redd.it/1l8yqk9 @r_cpp

Could I get a review of my project? Looking for honest feedback and improvements! Hey everyone! I recently built an Orderbook project and would love some feedback.At the moment it supports basic limit and market orders.What do you think works well? What could be improved? Be brutally honest! Also, would you consider this a beginner or intermediate-level project? I'm trying to gauge my progress. Thanks in advance githublink: https://github.com/thricvz/ORDERBOOK# https://redd.it/1l8xdbc @r_cpp

Searching for efficient cpp web framework Hey , I’m just wondering if anyone preferred a framework for web development I am not familiar with gRPC ,Protobuf and Http/2 Any Recommendations? https://redd.it/1l8uezc @r_cpp

Learning Entity Component System (ECS) Hi everyone, I'm currently learning how to build a Mario-style game, and I plan to use ECS (Entity-Component-System) as the core architecture. However, I'm looking for a clean, well-structured book, tutorial, or resource that not only explains ECS in theory but also applies it in a complete game project. I've checked several GitHub projects, but many of them seem to deviate from ECS principles at certain points, which makes it hard to know what’s best practice. Do you know of any high-quality, standard resources that implement ECS correctly in the context of a full game? Ideally in C++, but I’m open to other languages if the concepts are well explained. Thanks in advance! https://redd.it/1l8tqyk @r_cpp

How Conda makes shared libraries relocatable: rpaths, $ORIGIN, and more https://prefix.dev/blog/what-is-a-conda-package https://redd.it/1l8s3ie @r_cpp

Is MSVC ever going open source? MSVC STL was made open source in 2019, is MSVC compiler and its binary utils like LIB, LINK, etc. ever going to repeat its STL fate? It seems that the MSVC development has heavily slowed as Microsoft is (sadly) turning to Rust. I prefer to use MinGW on Windows with either GCC or Clang not only because of the better newest standards conformance, but also because MSVC is bad at optimizing, especially autovectorization. Thousands of people around the world commit to the LLVM and GNU GCC/binutils, I think it would make sense for Microsoft to relieve the load the current MSVC compiler engineering is experiencing. https://redd.it/1l8mqlv @r_cpp

Is it possible to install the old deprecated ICPC and ICC Intel compilers anywhere? I cannot find them online anywhere. Is there anyway to install them? https://redd.it/1l8jq8e @r_cpp

People who worked on QNX,I have a doubt. I love the C++ std::thread library since it's built on pthreads library (which I hate using because of the C language) built with OOPS. I have recently started learning QNX and lord please help me. Their official course has a threading section where everything is in C and POSIX threads. I actually hated C because it didn't had OOP( please bare with my rant). I know C++ can be used in QNX but when it comes to Threading is it necessary to use POSIX threads??? I understand it has more fine grained control and all but I find C++ syntax more friendly when dealing with threading part. Sorry if this question doesn't belong here :") https://redd.it/1l8k2ad @r_cpp

When is mmap faster than fread Recently I have discovered the mio C++ library, https://github.com/vimpunk/mio which abstracts memory mapped files from OS implementations. And it seems like the memory mapped files are way more superior than the std::ifstream and fread. What are the pitfalls and when to use memory mapped files and when to use conventional I/O? Memory mapped file provides easy and faster array-like memory access. I am working on the game code which only reads(it never ever writes to) game assets composed in different files, and the files are divided by chunks all of which have offset descriptors in the file header. Thanks! https://redd.it/1l89aft @r_cpp

Push is Faster [using std::cpp 2025] https://m.youtube.com/watch?v=Ghmbsh2Mc-o https://redd.it/1l898hw @r_cpp

"How to Make the Most Out of SIMD on AArch64?" https://ieeexplore.ieee.org/abstract/document/11018308 https://redd.it/1l88096 @r_cpp

Exception Handling in C++ Multithreading https://www.youtube.com/watch?v=Fm3dlAzEQmg https://redd.it/1l84b6m @r_cpp