October 25, Pavia, Italy
November 6-8, Berlin, Germany
November 3-8, Kona, HI, USA
By Adrien Hamelin | Jun 26, 2017 12:35 PM | Tags: intermediate c++17
Pretty cool new feature of C++17!
Modern C++ Features – Class Template Argument Deduction
by Arne Mertz
From the article:
With C++17, we get class template argument deduction. It is based on template argument deduction for function templates and allows us to get rid of the need for clumsy make_XXX functions.
By bfilipek | Jun 19, 2017 04:02 AM | Tags: c++17
C++17 will make a few things more predictable and clarifies some of the usage.
C++17 in details: language clarifications
by Bartlomiej Filipek
From the article:
C++ specification is now clearer. We have now ways to assume Copy Ellison will happen, some orders of operations are well defined now, operator new is now aware of the alignment of a type and also exceptions are part of the function declaration.
By Adrien Hamelin | Jun 13, 2017 12:44 PM | Tags: community
ACCU’s Overload journal of June 2017 is out. It contains the following C++ related articles.
Overload 139 is now available
From the journal:
I am not a number
Description : When is a number not a number? Frances Buontempo counts the ways this happens. by Frances Buontempo
Allocator for (Re)Actors with Optional Kinda-Safety and Relocation
How do you deal with memory for (Re)Actors? Sergey Ignatchenko proposes an allocation scheme. by Sergey Ignatchenko
Initialization in C++ is Bonkers
Uninitialised variables can cause problems. Simon Brand reminds us how complicated it can get. by Simon Brand
Vulkan and you – Khronos’ successor to OpenGL
Various graphics APIs exist. Andy Thomason unravels the mysteries of Vulkan, the latest 3D Graphics API from Khronos, the custodians of OpenGL. by Andy Thomason
Kotlin for C++ Developers
What could a language the originated on the JVM possibly offer C or C++ devs? Hadi Hariri tells us. by Hadi Hariri
Getting Tuple Elements with a Runtime Index
Accessing a tuple with a runtime index is a challenge. Anthony Williams shows us his approach. by Anthony Williams
Afterwood
What makes programming fun? Chris Oldwood ponders what floats his boat. by Chris Oldwood
By Adrien Hamelin | Jun 2, 2017 01:09 PM | Tags: intermediate c++11
Quick A: When it is assigned.
Recently on SO:
When is an rvalue evaluated?
s2binds to the expressions1 + s1, but is this evaluated at the times2is assignedYes.
And also woulds2hold memory for a temporary string?Precisely,
s2is bound to a temporarystd::string.
s1 + s1will produce a temporarystd::string, which will be bound to the references2(and its lifetime is extended to the lifetime of the reference). Thens2 += "Test";, performsoperator+=()ons2, i.e. the temporarystd::string.
By Meeting C++ | Jun 2, 2017 06:05 AM | Tags: user groups community
The monthly posting on upcoming C++ User Group Meetings:
C++ User Group meetings in June
by Jens Weller
From the article:
Again, in Summer time, many C++ User Groups meet to share an evening full of C++ with their local community! ...
By Adrien Hamelin | May 25, 2017 11:37 AM | Tags: community
Did you ever use them?
C++ Online Compilers
by Arne Mertz
From the article:
Online compilers can be useful tools to quickly compile a snippet of code without having to install a proper compiler on our computer. They can be especially useful to play with the newest language features, to share code snippets online or to compare different compilers...
By Adrien Hamelin | May 25, 2017 11:30 AM | Tags: performance c++14
How to do a pool?
A self-contained Pool in C++14
by Jens Weller
From the article:
During C++Now I started writing a small application, that plays around with dlibs face recognition features. More on this later, the program uses the QThreadPool, and some researched showed that calling dlib::get_frontal_face_detector() is a very expensive operation. So I decided to write a thread safe pool to share the face detection object between threads, only loading as many as needed. The main thread owns the pool which owns the detection objects...
By TartanLlama | May 24, 2017 01:13 PM | Tags: performance
A post on writing GPGPU code in C++ using the SYCL standard from the Khronos group.
Accelerating your C++ on GPU with SYCL
By Simon Brand
From the article:
Leveraging the power of graphics cards for compute applications is all the rage right now in fields such as machine learning, computer vision and high-performance computing. Technologies like OpenCL expose this power through a hardware-independent programming model, allowing you to write code which abstracts over different architecture capabilities. The dream of this is “write once, run anywhere”, be it an Intel CPU, AMD discrete GPU, DSP, etc. Unfortunately, for everyday programmers, OpenCL has something of a steep learning curve; a simple Hello World program can be a hundred or so lines of pretty ugly-looking code. However, to ease this pain, the Khronos group have developed a new standard called SYCL, which is a C++ abstraction layer on top of OpenCL. Using SYCL, you can develop these general-purpose GPU (GPGPU) applications in clean, modern C++ without most of the faff associated with OpenCL.
By Adrien Hamelin | May 23, 2017 09:23 AM | Tags: experimental community
Trip report!
C++Now 2017
by Michael Park
From the article:
I just returned from C++Now 2017 in Aspen, CO. This was my second time attending the conference and it was just as amazing as last year. My girlfriend decided to come along this time, since Aspen is such a beautiful place. We flew into Denver, rented a car and took the beautiful 4-hour drive into Aspen. She was very happy ��. Strongly recommended...
By Adrien Hamelin | May 23, 2017 09:17 AM | Tags: performance advanced
Complicated stuff, interesting also!
A question about avoiding page faults the first time newly-allocated memory is accessed
by Raymond Chen
From the article:
A customer had a question about memory allocation...