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Quick Q: How to track newer C++ std documents of given topic?

By Adrien Hamelin | Sep 7, 2018 11:54 AM | Tags: advanced

Quick A: Use wg21.link

Recently on SO:

How to track newer C++ std documents of given topic?

For the newer proposals (ones that start with the letter P) you can use wg21.link redirect service to obtain the latest document:

wg21.link - WG21 redirect service.

Usage:
wg21.link/nXXXX
wg21.link/pXXXX
wg21.link/pXXXXrX Get paper.

wg21.link/standard
Get working draft.

wg21.link/cwgXXX
wg21.link/ewgXXX
wg21.link/lwgXXX
wg21.link/lewgXXX
wg21.link/fsXXX
wg21.link/editXXX
Get issue.

wg21.link/index.json
wg21.link/index.ndjson
wg21.link/index.txt
wg21.link/specref.json
Get everything.

wg21.link/
Get usage.

For example for P0476: Bit-casting object representations if we use wg21.link/P0476 we obtain the latest version which is P0476R2.

In my answer to How does the standards committee indicate the status of a paper under consideration? I go into more details of the WG21 site and what documents you can find there.

Use the everything link for Pre P proposals
If we use the wg21 redirect service Get Everything link we can do a text search for the paper title. So for your example Improvements to std::future<T> and Related APIs we can see the last document is N3857:

"N3857": {
"type": "paper",
"title": "Improvements to std::future and Related APIs",
"subgroup": "Concurrency",
"author": "N. Gustafsson, A. Laksberg, H. Sutter, S. Mithani",
"long_link": "http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2014/n3857.pdf",
"link": "https://wg21.link/n3857",
"source": "http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2014/",
"date": "2014-01-16"
},

Modern C++: 7 Ways to Fake It Until You Have It--Jonathan Boccara

By Adrien Hamelin | Aug 31, 2018 02:18 PM | Tags: intermediate

If you want.

Modern C++: 7 Ways to Fake It Until You Have It

by Jonathan Boccara

From the article:

Do you wish you had a later version of C++ in your production code? If you do, you’re not alone: a lot of C++ developers today don’t work with a compiler that supports the latest version of the standard.

It could be for many reasons: perhaps you have a lot of legacy code to migrate, or your clients do, or your hardware doesn’t have the adequate infrastructure yet. The point is, you can’t benefit from the latest features that the language offers, and that’s a shame because some of them would surely make your code more expressive.

But even if you can’t use those features, you don’t have to give up on their benefits. At least some of their benefits. There are way you could use the ideas of the new features in your code, to convey your intents more precisely.

Sure enough, it’s not as good as having them natively, which is why updating your compilers is still a necessity. But in the meantime, here are 7 ways to emulate those features, that will improve your code at a minimal cost...

Data-Oriented Design and Avoiding the C++ Object-Oriented Programming Zimmer Frame -- Leigh Johnston

By Leigh Johnston | Aug 31, 2018 04:55 AM | Tags: None

An article about the increasing importance of data-oriented design within the context of C++.

Data-Oriented Design and Avoiding the C++ Object-Oriented Programming Zimmer Frame

by Leigh Johnston

From the article:

Object-oriented programming, OOP, or more importantly object-oriented design (OOD) has been the workhorse of software engineering for the past three decades but times are changing: data-oriented design is the new old kid on the block.

Preprocessing Phase for C++17's Searchers--Bartlomiej Filipek

By Adrien Hamelin | Aug 29, 2018 01:24 PM | Tags: c++17

Searchers objects.

Preprocessing Phase for C++17's Searchers

by Bartlomiej Filipek

From the article:

Searchers from C++17 are a new way to perform efficient pattern lookups. The new standard offers three searchers: default_searcher , boyer_moore_searcher and boyer_moore_horspool_searcher. The last two implements algorithms that require some additional preprocessing for the input pattern. Is there a chance to separate preprocessing time from the search time?

Spaceship Operator--Simon Brand

By Adrien Hamelin | Aug 28, 2018 12:05 PM | Tags: intermediate experimental

The future?

Spaceship Operator

by Simon Brand

From the article:

You write a class. It has a bunch of member data. At some point, you realise that you need to be able to compare objects of this type. You sigh and resign yourself to writing six operator overloads for every type of comparison you need to make. Afterwards your fingers ache and your previously clean code is lost in a sea of functions which do essentially the same thing. If this sounds familiar, then C++20’s spaceship operator is for you. This post will look at how the spaceship operator allows you to describe the strength of relations, write your own overloads, have them be automatically generated, and how correct, efficient two-way comparisons are automatically rewritten to use them...

How to Design Early Returns in C++ (Based on Procedural Programming)--Jonathan Boccara

By Adrien Hamelin | Aug 28, 2018 11:59 AM | Tags: intermediate

What do you think?

How to Design Early Returns in C++ (Based on Procedural Programming)

by Jonathan Boccara

From the article:

Travelling back from ACCU conference a couple of weeks ago, one of the insights that I’ve brought back with me is from Kevlin Henney’s talk Procedural Programming: It’s Back? It Never Went Away. It’s surprisingly simple but surprisingly insightful, and it has to do with early return statements...

“Modern C++” != “New(est) Standard”--Arne Mertz

By Adrien Hamelin | Aug 22, 2018 01:20 PM | Tags: community

What do you think?

“Modern C++” != “New(est) Standard”

by Arne Mertz

From the article:

The term “Modern C++” is often used interchangeably with “Code using the new C++ standard”. Here, “new” may be anything from C++11 to C++17 or even whatever is available of C++20 right now. I think that modern C++ is more and something different than just adding that -std=c++17 flag.