CppCast Episode 133: Meltdown and Spectre with Matt Godbolt

By robwirving | Jan 12, 2018 07:59 AM | Tags: None

Episode 133 of CppCast the only podcast for C++ developers by C++ developers. In this episode Rob and Jason are joined by Matt Godbolt to talk about the Meltdown and Spectre vulnerabilities and how they affect C++ Programmers.

CppCast Episode 133: Meltdown and Spectre with Matt Godbolt

by Rob Irving and Jason Turner

About the interviewee:

Matt is a developer at trading firm DRW. Before that he's worked at Google, run a C++ tools company, and spent over a decade in the games industry making PC and console games. He is fascinated by performance and created Compiler Explorer, to help understand how C++ code ends up looking to the processor. When not performance tuning C++ code he enjoys writing emulators for 8-bit computers in Javascript.

Modern CMake for modular design

By Meeting C++ | Jan 12, 2018 04:23 AM | Tags: meetingcpp cmake build systems

A talk about modern CMake.

Modern CMake for modular design

by Mathieu Ropert

How a weak_ptr might prevent full memory cleanup of managed object -- Bartlomiej Filipek

By bfilipek | Jan 11, 2018 03:00 PM | Tags: None

Tricky weak_ptr and shared_ptr interaction:<img alt="" data-cke-saved-src="https://2.bp.blogspot.com/-2XIQxeCUBFc/Wi2JGz_EcXI/AAAAAAAADNU/vEkN6ZtXR-Yon5YuZWBxk-6kjmHD1011ACLcBGAs/s1600/control_block.png" src="https://2.bp.blogspot.com/-2XIQxeCUBFc/Wi2JGz_EcXI/AAAAAAAADNU/vEkN6ZtXR-Yon5YuZWBxk-6kjmHD1011ACLcBGAs/s1600/control_block.png" right;"="" style="float: right; width: 230px; height: 199px;">

How a weak_ptr might prevent full memory cleanup of managed object

by Bartlomiej Filipek

From the article:

It appears that in some cases memory allocated for the object controlled by smart_ptr might not be released until all weak pointers are also ‘dead’.

Quick Q: () vs {} when constructing objects

By Adrien Hamelin | Jan 11, 2018 02:40 PM | Tags: intermediate

Quick A: Read the core guidelines

Recently on reddit:

() vs {} when constructing objects

If I know the type, I'll write {}. If the type is generic, I'll only write {} with zero parameters. Otherwise, I might construct an initializer_list I didn't intend to...

C++ Comma Operator--Ivan Sanz

By Adrien Hamelin | Jan 11, 2018 02:37 PM | Tags: advanced

It needs to be used carefully, but has its uses.

C++ Comma Operator

by Ivan Sanz

From the article:

Comma operator has been with us for a long time. First seen in C spec and improved with custom overloads in C++, it quickly became one of those hidden things you shouldn’t use.
Most C/C++ books avoid speaking about goto the same way they do about comma operator. This is not fair, as both of them can be used properly on certain cases. Let’s speak about that...

Pluralsight Course: Practical C++14 and C++17 Features -- Giovanni Dicanio

By Giovanni Dicanio | Jan 11, 2018 05:04 AM | Tags: c++17 c++14

Are you interested in learning about some practical features added in C++14 and C++17, with a mix of engaging slides and demo code? Then consider watching this Pluralsight course!

New Pluralsight Course: Practical C++14 and C++17 Features

by Giovanni Dicanio

From the blog post:

C++14 and C++17 added many new features to the C++ language. This course will teach you practical features introduced in C++14 and C++17, that you will be able to use to write clearer, simpler, and higher-quality modern C++ code.

C++ Status at the end of 2017

By bfilipek | Jan 11, 2018 05:02 AM | Tags: c++17

Bartek's non-official year report

C++ Status at the end of 2017

by Bartlomiej Filipek

From the article:

Four things that I’d like to emphasize for the year:

• C++17 and the stable progress of the standardization
• Transparency of the Committee and compiler vendors
• Community is growing!
• More tools!

Introduction to proposed std::expected

By Meeting C++ | Jan 11, 2018 03:51 AM | Tags: meetingcpp errorhandling c++20

Niall Douglas gave an overview on the proposed std::expected

Introduction to proposed std::expected

by Niall Douglas

The Pimpl Pattern - what you should know--Bartlomiej Filipek

By Adrien Hamelin | Jan 10, 2018 02:48 PM | Tags: intermediate

A good sum up.

The Pimpl Pattern - what you should know

by Bartlomiej Filipek

From the article:

Have you ever used the pimpl idiom in your code? No matter what’s your answer read on

In this article I’d like to gather all the essential information regarding this dependency breaking technique. We’ll discuss the implementation (const issue, back pointer, fast impl), pros and cons, alternatives and also show examples where is it used. You’ll also see how modern C++ can change this pattern. Moreover, I hope you’ll help me and provide your examples...

Introduction to std::chrono--Rachel Crawford

By Adrien Hamelin | Jan 10, 2018 02:35 PM | Tags: intermediate c++11

How to measure time in C++?

Introduction to std::chrono

by Rachel Crawford

From the article:

How many times have you tried to call a function that alleges to return a time value only to realise you don’t know what units the value is in? Or that takes a time value as a parameter, but doesn’t specify whether the value is expected to be in milliseconds, seconds, or hours?