cpp_basic.md

C++ Programming Language

Learning C++

• The best way to learn programming is, always, writing your own code!

• CppCoreGuidelines - The C++ Core Guidelines are a set of tried-and-true guidelines, rules, and best practices about coding in C++

  • The website version is here
  • The C++ Core Guidelines are a collaborative effort led by Bjarne Stroustrup, much like the C++ language itself. They are the result of many person-years of discussion and design across a number of organizations.
  • A Chinese translation can be found here

• LearnCpp.com - Tutorials to help you master C++ and object-oriented programming

  • LearnCpp.com is a free website devoted to teaching you how to program in C++. Whether you’ve had any prior programming experience or not, the tutorials on this site will walk you through all the steps to write, compile, and debug your C++ programs, all with plenty of examples.

• Awesome Modern C++ - A collection of resources on modern C++

  • The goal is to collect a list of resources to help people learn about and leverage modern C++11 and beyond. The website is here

• Modern CPP Tutorial - C++11/14/17

  • This is a Chinese on-line book: <高速上手 C++11/14/17>

• modern-cpp-features - A cheatsheet of modern C++ language and library features

  • Descriptions and examples of new features in C++

For Python Coders

• A Transition Guide from Python 2.x to C++

Useful Libraries

Performance

• Tips for Optimizing C/C++ Code

  • Very practical and useful guides for optimizing C/C++.

• AwesomePerfCpp - A curated list of awesome C/C++ performance optimization resources

  • Including talks, articles, libraries, and tools

• cpp-taskflow - Modern C++ Parallel Task Programming Library

  • A fast C++ header-only library to help you quickly write parallel programs with complex task dependencies

• mimalloc - mimalloc is a compact general purpose allocator with excellent performance

  • By Microsoft. mimalloc (pronounced "me-malloc") is a general purpose allocator with excellent performance characteristics. It is a drop-in replacement for malloc and can be used in other programs without code changes.

Numerical

• GSL - GNU Scientific Library

  • The library provides a wide range of mathematical routines such as random number generators, special functions and least-squares fitting. There are over 1000 functions in total with an extensive test suite.
  • The online reference manual can be found here.

• Eigen - a C++ template library for linear algebra: matrices, vectors, numerical solvers, and related algorithms

• Armadillo - C++ library for linear algebra & scientific computing

  • Armadillo is a high quality linear algebra library (matrix maths) for the C++ language, aiming towards a good balance between speed and ease of use

• xtensor - Multi-dimensional arrays with broadcasting and lazy computing

  • xtensor is a C++ library meant for numerical analysis with multi-dimensional array expressions. xtensor can be used to process NumPy data structures inplace using Python's buffer protocol.

Optimization

• OptimLib - a lightweight C++ library of numerical optimization methods for nonlinear functions

  • A C++11 library of local and global optimization algorithms, as well as root finding techniques, supporting a large number of algorithms.

• nlopt - library for nonlinear optimization

  • NLopt is a library for nonlinear local and global optimization, for functions with and without gradient information.

• ceres-solver - open source C++ library for modeling and solving large, complicated optimization problems

  • It can be used to solve Non-linear Least Squares problems with bounds constraints and general unconstrained optimization problems. Used by Google for good reasons.

• CppNumericalSolvers - L-BFGS-B for TensorFlow or pure C++11 and other optimization methods

  • A header-only library with bindings to C++, TensorFlow and Matlab.
  • Easy to use, and support a list of algorithms.

Astronomy Related

• CCfits - object oriented interface to the cfitsio library
  • It is designed to make the capabilities of cfitsio available to programmers working in C++. It is written in ANSI C++ and implemented using the C++ Standard Library with namespaces, exception handling, and member template functions.

Code to Study

• GalSim - The modular galaxy image simulation toolkit

  • GalSim is a very sophisticated system that pretty much includes everything you need to know about optics, observational astronomy, photometry, models of galaxies, and weak lensing.
  • It also teachs you how to communicate between C++ and Python.

• imfit - an open-source astronomical image-fitting program

  • Everything on modeling galaxies using least-chi-square or MCMC methods.

• libprofit - low-level C++ library that produces images based on different luminosity profiles

  • Light-weight library to learn about modeling galaxies and image convolution.

• TreeCorr - Code for efficiently computing 2-point and 3-point correlation functions