By Marco Arena | Nov 2, 2023 01:29 AM | Tags: sobjectizer intermediate c++20
A new episode of the series about SObjectizer and message passing:
SObjectizer Tales – 4. Handling commands
by Marco Arena
From the article:
What if we could seamlessly command the device to start and stop its acquisition with the wave of our virtual wand?
By Marco Arena | Oct 19, 2023 01:36 AM | Tags: sobjectizer intermediate c++20
A new episode of the series about SObjectizer and message passing:
SObjectizer Tales – 2. Can you call me back
by Marco Arena
From the article:
A camera vendor has just released a new SDK that works through callbacks. Basically, the user sets a function that will get called by the SDK on every new available frame. How can we integrate this into a producer agent?
By Marco Arena | Oct 12, 2023 02:22 AM | Tags: sobjectizer intermediate c++20
A new episode of the series about SObjectizer and message passing:
SObjectizer Tales - 1. Producing Images
by Marco Arena
From the article:
Since using any real camera drivers is out of scope, we’ll use OpenCV to open our default camera (e.g. the webcam) and grab frames one by one. In case you don’t have any available camera on your machine, we’ll provide a simple “virtual producer” that replays some images from a directory...
By Marco Arena | Oct 5, 2023 08:13 AM | Tags: sobjectizer intermediate c++20
A new blog series about SObjectizer and message passing:
SObjectizer Tales - Prelude
by Marco Arena
From the article:
Some time ago, I was looking for alternatives to Microsoft’s Asynchronous Agents Library. I developed a Windows application interfacing with industrial cameras and performing multiple tasks such as visualization and object recognition...
By Jens Maurer | Jul 3, 2023 02:20 AM | Tags: intermediate c++14
Less overhead for associative container lookup
Modern C++ In-Depth — Transparent Comparisons
by Michael Kristofik
From the article:
Searching for an element in a container normally requires constructing an object of the container’s key_type. If the key is small, such as one you’d normally pass by value, it isn’t a performance concern. But what if the key is large?
By Meeting C++ | Mar 17, 2023 03:10 AM | Tags: performance meetingcpp intermediate c++20 c++17 basics
Exploring how much number conversions from string cost you and how caching helps
What do number conversions cost?
by Jens Weller
From the article:
And so the devil said: "what if there is an easier design AND implementation?"
In the last two blog posts I've been exploring some of the ways to implement a certain type that has a string_view and holds a conversion to a type in a variant or any. And my last blog post touched on conversions. And that made me wonder, what if I did not have a cache in the type for conversions? The memory foot print would be much smaller, and implementation could be simple to convert in a toType function on demand. This then would essentially be a type that holds a string_view, but offers ways to convert this view to a type. Adding a cache to hold the converted value is in this case not necessary, as this is done on demand.
By Jens Maurer | Mar 16, 2023 03:19 PM | Tags: intermediate c++11
Literals
Modern C++ In-Depth — Literal Operators and User-Defined Literals
by Michael Kristofik
From the article
In this installment, we’re going to take a look at user-defined literals. First introduced in C++11, this feature allows developers to create custom suffixes that can be used to reduce verbosity.
By Marco Arena | Feb 1, 2023 11:44 PM | Tags: intermediate design c++20
That little extra we might equip builder classes with:
The Toggle Builder
by Marco Arena
From the article:
If intended for general usage, the builder can result a bit uncomfortable when we go through some configuration object to toggle features. This often leads to a bunch of ifs..
By Meeting C++ | Dec 10, 2022 11:38 AM | Tags: meetingcpp intermediate community c++20 basics advanced
The opening keynote of Meeting C++ 2022 is now online!
Belle Views on C++ Ranges, their Details and the Devil - Nico Josuttis - Keynote Meeting C++ 2022
by Nicolai Josuttis
Watch it now
By Meeting C++ | Nov 23, 2022 04:08 AM | Tags: performance meetingcpp intermediate community basics
Meeting C++ has begun to publish the first videos from last weeks conference to YouTube:
First 3 talks published
C++ for multi-accelerator, multi-vendor systems - Guy Tamir
Whats new in Conan 2.0 - Christopher McArthur
Living at HEAD with Bazel - Šimon Tóth