Home » Blog » Tags » basics

basics

shared_ptr - basics and internals with examples--Hitesh Kumar

By Adrien Hamelin | Apr 14, 2020 12:19 PM | Tags: c++11 basics

Did you know it?

shared_ptr - basics and internals with examples

by Hitesh Kumar

From the article:

The C++11 std::shared_ptr<T> is a shared ownership smart pointer type. Several shared_ptr instances can share the management of an object's lifetime through a common control block. The managed object is deleted when the last owning shared_ptr is destroyed (or is made to point to another object). Memory management by shared_ptr is deterministic because the timing of a managed object's destruction is predictable and in the developer's control. Hence, std::shared_ptr brings deterministic automatic memory management to C++, without the overhead of garbage collection. Here is a basic example of shared_ptr...

Virtual, final and override in C++--Jonathan Boccara

By Adrien Hamelin | Feb 24, 2020 02:09 PM | Tags: c++11 basics

3 keywords that go together.

Virtual, final and override in C++

by Jonathan Boccara

From the article:

C++11 added two keywords that allow to better express your intentions with what you want to do with virtual functions: override and final. They allow to express your intentions both to fellow humans reading your code as well as to the compiler.

However, as we will see, the intention of override is super useful, but the intention of final… is harder to understand.

Both apply to virtual functions, which are the member functions of a base class that can be overridden by the classes that derive (inherit) from it...

Move, simply--Herb Sutter

By Adrien Hamelin | Feb 20, 2020 01:56 PM | Tags: basics

No need to get complicated.

Move, simply

by Herb Sutter

From the article:

C++ “move” semantics are simple, but they are still widely misunderstood. This post is an attempt to shed light on that situation...

Reverse For Loops in C++--Carlos Buchart

By Adrien Hamelin | Feb 12, 2020 02:59 PM | Tags: basics

How do you do it?

Reverse For Loops in C++

by Carlos Buchart

From the article:

As we saw when working on dynamic bitsets, it can be useful to traverse a collection backwards, from its last element to its first one.

It would be nice to be able to use C++11 range for loops to iterate backwards. But unfortunately, there is no such reverse range-for: range-for only works forwards.

Let’s see how to traverse a collection backwards by using a range for loop...

C++ User Group meetings in January 2020

By Meeting C++ | Jan 8, 2020 02:40 AM | Tags: meetingcpp community basics

The monthly overview on upcoming C++ User Group meetings all over the world!

C++ User Group meetings in January 2020

by Jens Weller

From the article:

Happy new years! The year has begun, and lots of C++ User Groups have their first meeting of 2020.

Would like to start your own group or looking for ideas in running your current group? Watch my talk from CppCon:

CppCon YT - CppCon 2019: Jens Weller “Starting and Running C++ User Groups”