## CROSS-PLATFORM PITFALLS AND HOW TO AVOID THEM Erika Sweet (she/her) Microsoft C++ Team ## Welcome to CppCon 2020! ### V isit our table at the Expo Hall https://aka.ms/cppcon/expo • Meet the Microsoft (e.g. NuGet) Language specific package managers (e.g. vcpkg, Conan) Our recommendation for C++ cross-platform development ## C++ package managers: Conan, vcpkg Bring down and build libraries from source solution space ## Debugging: the solution space Cross-platform IDEs, editors, and tools CLion, VS Code, Qt Creator ## Debugging: the solution space Cross-platform IDEs, editors, and tools CLion, VS Code

## +24 ## Cross-Platform Floating-Point Determinism Out of the Box ## SHERRY IGNATCHENKO ET AL ## Authors  ## All the Testability (Sort of)  2 Cross Platform Distributed Simulations, Games, especially RTS ![Image](/uploads/documents/f/b/c/c/ deterministic when using the identically compiled files and run on systems that adhere to the IEEE standards. Cross platform synchronized network simulations or replays will not possible [sic].” - Most upvoted answer

### Q2. why call logistic regression use sigmoid - Controversial! MSE => regression - Cross Entropy => classification 0.7 0.7 0.3 ## Binary Classification $$ \begin{aligned}&\bullet

High-Performance Cross-Platform Architecture: C++20 Innovations ## NOAH STEIN ## About Me • 35-year career in video games and embedded software • Started using C++ in 1995 • First cross-platform project project in 1994 ## Cross-Platform Architecture Goals • Take advantage of all platforms • Focus on the compiler • Minimize boilerplate and unnecessary code • Minimize redundant code • Minimize modifying

## PyTorch ## LOSS及其梯度 主讲人：龙良曲 ## Typical Loss ## Mean Squared Error ## Cross Entropy Loss binary multi-class +softmax Leave it to Logistic Regression Part ## MSE $$ \begin{aligned} ■ loss=\

Source ..... 7 2.2 Decentralized package manager ..... 7 2.3 Binary management ..... 8 2.4 Cross platform, build system agnostic ..... 9 2.5 Stable ..... 9 3 Install ..... 11 3.1 Install with cache: concurrency, Continuous Integration, isolation ..... 100 10 Systems and cross building ..... 103 10.1 Cross building ..... 103 10.2 Windows Subsystems ..... 111 11 Integrations ..... integration ..... 173 12.7 How to manage C++ standard ..... 176 12.8 How to use docker to create and cross build C and C++ conan packages ..... 178 12.9 How to reuse Python code in recipes ..... 180 12

Introduction 3 1.1 Open Source 3 1.2 Decentralized package manager 3 1.3 Binary management 4 1.4 Cross platform, build system agnostic 5 1.5 Stable 5 2 Install 7 2.1 Install with pip (recommended) local cache: concurrency, Continuous Integration, isolation 105 10 Systems and cross building 107 10.1 Cross building 107 10.2 Windows Subsystems 115 11 Extending Conan 119 11.1 Python 13.7 How to manage C++ standard [EXPERIMENTAL] ..... 198 13.8 How to use docker to create and cross build C and C++ conan packages ..... 200 13.9 How to reuse Python code in recipes ..... 202 13

information 383 lossary 384 ## 1 First steps ## Welcome to Oracle VM VirtualBox! VirtualBox is a cross-platform virtualization application. What does that mean? For one thing, it installs on your existing export virtual machines in the industry-standard Open Virtualization Format (OVF). $ ^{6} $ OVF is a cross-platform standard supported by many virtualization products which allows for creating ready-made virtual performance as it allows for less context switches, dramatically increasing the sizes of packets that cross VM/host boundary. Note: Neither virtio nor Intel PRO/1000 drivers for Windows XP support segmentation

Introduction 3 1.1 Open Source 3 1.2 Decentralized package manager 3 1.3 Binary management 4 1.4 Cross platform, build system agnostic 5 1.5 Stable 5 2 Install 7 2.1 Install with pip (recommended) local cache: concurrency, Continuous Integration, isolation 107 10 Systems and cross building 109 10.1 Cross building 109 10.2 Windows Subsystems 117 11 Extending Conan 121 11.1 Python 13.7 How to manage C++ standard [EXPERIMENTAL] ..... 206 13.8 How to use docker to create and cross build C and C++ conan packages ..... 208 13.9 How to reuse Python code in recipes ..... 210 13