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C++ Templates series -- Feabhas

By Blog Staff | Sep 4, 2014 11:46 AM | Tags: intermediate basics advanced

Here's a recent series that just got a new instalment today: It introduces template basics in a nicely explained and accessible way suitable for a gentle introduction, and then going on to progressively help the reader develop stronger template muscles.

C++ Templates series

by Feabhas

An Introduction to C++ Templates

Template Classes

Template Inheritance

Templates and Polymorphism

Template Member Functions

Variadic Templates

Templates of Templates

And today: Template Specialization

From the Introduction:

Templates are a very powerful -- but often very confusing -- mechanism within C++. However, approached in stages, templates can be readily understood (despite their heinous syntax).

The aim of this series of articles is to guide beginners through the syntax and semantics of the foundation concepts in C++ template programming.

Fun with Lambdas: C++14 Style (Part 3) -- Sumant Tambe

By Blog Staff | Sep 3, 2014 02:32 PM | Tags: c++14 advanced

sumant-tambe.PNGMore rapid-fire "now write this using lambdas" problem-solution drill with Sumant Tambe:

Fun with Lambdas: C++14 Style (Part 3)

by Sumant Tambe

From the article:

Now that we have C++14, it has opened up doors for truly mind-bending uses of lambdas--more specifically--generic lambdas. This blog post is the third installment in the series of "Fun with Lambdas: C++14 Style". Check out part 1 and part 2 if you have not already.

This post is about "monadic tuples"...

Near-final version of Effective Modern C++ available -- Scott Meyers

By Blog Staff | Aug 21, 2014 08:57 AM | Tags: intermediate c++14 c++11 advanced

Scott's long-awaited book on using C++11 and C++14 is nearing completion:

Near-Final Draft of Effective Modern C++ Now Available (plus TOC and sample Item)

by Scott Meyers

From the announcement:

Effective Modern C++ is moving closer and closer to reality. This post contains:

  •     Information about availability of an almost-final draft of the book.
  •     The current (and probably final) table of contents.
  •     A link to the I-hope-I-got-it-right-this-time version of my Item on noexcept.

Note: Scott's session at CppCon ("Type Deduction and Why You Care") is based on the first chapter of Effective Modern C++.

A visitor’s guide to C++ allocators -- Thomas Köppe

By Blog Staff | Aug 19, 2014 04:57 PM | Tags: intermediate advanced

The standard library allocators are one of the more mysterious parts of namespace std, as well as one of the more flexible parts. In this "under construction" article and GitHub repo, Thomas Köppe undertakes to demystify the feature.

A visitor’s guide to C++ allocators (repo)

by Thomas Köppe

From the README:

This repository contains a collection of documents that describe the allocator concept in the standard library of C++11 and beyond. The main guide covers the following topics.

  • Allocator traits
  • Statefulness
  • Fancy pointers
  • Allocator propagation in breadth (container copy, POC{CA,MA,S}) and depth (scoped_allocator_adaptor)

Start reading with the main guide.

Furthermore, there are several worked-out end-to-end examples:

The code for the end-to-end examples is available separately in the example_code directory.
 

Using Varadic Templates for a Signals and Slots Implementation in C++ -- Paul Cook

By Blog Staff | Aug 18, 2014 11:40 AM | Tags: advanced

Fresh on GameDev.net:

Using Varadic Templates for a Signals and Slots Implementation in C++

By Paul Cook

From the article:

Abstract

Connecting object instances to each other in a type-safe manner is a well-solved problem in C++ and many good implementations of signals and slots systems exist. However, prior to the new varadic templates introduced in C++0x, accomplishing this has traditionally been complex and required some awkward repetition of code and limitations.

Varadic templates allow for this system to be implemented in a far more elegant and concise manner and a signals/slots system is a good example of how the power of varadic templates can be used to simplify generic systems that were previously difficult to express. ...

Generator functions in C++ -- Paolo Severini

By Marco Arena | Jun 9, 2014 12:29 PM | Tags: experimental advanced

Paolo Severini expands the concept of resumable functions to support generator functions, providing the ability of lazily producing the values in a sequence only when they are needed.

Generator functions in C++

by Paolo Severini

From the article:

In the previous post we had a look at the proposal of introducing resumable functions into the C++ standard to support writing asynchronous code modeled on the C# async/await pattern.

We saw that it is already possible to experiment with the future resumable and await keywords in Visual Studio, by installing the latest November 2013 CTP. But the concept of resumable functions is not limited to asynchrony; in this post we’ll see how it can be expanded to support generator functions.

Generator functions and lazy evaluation

In several languages, like C# and Python, generator functions provide the ability of lazily producing the values in a sequence only when they are needed. ...