By Adrien Hamelin | Jul 16, 2020 12:03 PM | Tags: basics
Quick A: Do you need it?
Recently on SO:
Is it possible to make template specialization for zero template arguments?
If T is used only for the constructor, you don't need to template the whole class;
By Hitesh Kumar | Jul 11, 2020 01:26 PM | Tags: c++11
C++11 scoped enums deep dive and comparison with C++98 unscoped enums.
Scoped (class) enums: fundamentals and examples
by Hitesh Kumar
From the article:
Scoped enums (enum class/struct) are strongly typed enumerations introduced in C++11. They address several shortcomings of the old C-style (C++98) enums, mainly associated with type-safety and name collisions.
By Adrien Hamelin | Jul 8, 2020 01:31 PM | Tags: c++20
The series continue.
Designated Initializers
by Rainer Grimm
From the article:
Designated initialization is an extension of aggregate initialization and empowers you to directly initialize the members of a class type using their names...
By Adrien Hamelin | Jun 30, 2020 10:05 AM | Tags: c++17
Did you know them?
Polymorphic Allocators, std::vector Growth and Hacking
by Bartlomiej Filipek
From the article:
The concept of a polymorphic allocator from C++17 is an enhancement to standard allocators from the Standard Library.
It’s much easier to use than a regular allocator and allows containers to have the same type while having a different allocator, or even a possibility to change allocators at runtime.
Let’s see how we can use it and hack to see the growth of std::vector containers...
By Adrien Hamelin | Jun 30, 2020 10:03 AM | Tags: c++11
The series continue.
Stupid std::tuple tricks: Finding a type in a tuple
by Raymond Chen
From the article:
Given a tuple, you can extract the type of the Nth element in the tuple with the help of std::tuple_element_t<N, Tuple>...
By Adrien Hamelin | Jun 29, 2020 08:35 AM | Tags: c++11
The series continue.
Stupid std::tuple tricks: Creating more interesting index sequences
by Raymond Chen
From the article:
Last time, we wrote offset_sequence_t, which takes an existing sequence and adds a fixed value to each element. This is the sort of index manipulation you may want to generalize. So let’s generalize it...
By Adrien Hamelin | Jun 29, 2020 08:34 AM | Tags: c++11
The series continue.
Stupid std::tuple tricks: Creating interesting index sequences
by Raymond Chen
From the article:
We saw last time that manipulating tuples boils down to the index_sequence. The problem is that the C++ standard library doesn’t provide very much in the way of helpers to manipulate these index sequences...
By Adrien Hamelin | Jun 29, 2020 08:32 AM | Tags: c++11
The series continue.
Stupid std::tuple tricks: Selecting via an index sequence, part 2
by Raymond Chen
From the article:
Last time, we developed the select_tuple function which takes a tuple and an index sequence and produces a new tuple that selects the elements based on the index sequence...
By Adrien Hamelin | Jun 24, 2020 10:53 AM | Tags: basics
All you need to know;
C++ Template: A Quick UpToDate Look(C++11/14/17/20)
by Vishal Chovatiya
From the article:
I know, it’s been a while since the last time I published something newbies-friendly on my blog. The main reason is that most of my readers are either experienced devs or from C background having modest C++ encounter. But while programming in C++ you need a completely different mindset as both C & C++ belongs to different programming paradigm. And I always strive to show them a better way of doing things in C++. Anyway, I found the topic which is lengthy, reasonably complex(at least it was for me), newbies-friendly as well as energizing for experienced folks(if Modern C++ jargons, rules & features added) i.e. C++ Template.
I will start with a simple class/function template and as we move along, will increase the complexity. And also cover the advance topics like the variadic template, nested template, CRTP, template vs fold-expression, etc. But, yes! we would not take deeper dive otherwise this would become a book rather than an article.
By Adrien Hamelin | Jun 24, 2020 10:50 AM | Tags: community
Getting up to date.
The C++ Lambda Story Book
by Bartlomiej Filipek
From the article:
Lambda Expressions appeared in C++11, and since then they become one of the most distinguishing features of Modern C++. What’s more, with each revision of the Standard the ISO Committee improved the syntax and capabilities of lambdas, so they are even more comfortable to use.
Read on to see how you can learn all the details of this powerful modern C++ feature.