Tag Archive for: Memory

Posts

Optimization with Allocators in C++17

October 9, 2023

Thanks to polymorphic allocators in C++17, you can optimize your memory allocation. This optimization…

Special Allocators with C++17

October 2, 2023

I introduced in my last post "Polymorphic Allocators with C++17" the theory of polymorphic allocators…

Polymorphic Allocators in C++17

September 25, 2023

This post starts a miniseries about an almost unknown feature in C++17: polymorphic allocators. I often…

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C++ Core Guidelines: Passing Smart Pointers

December 23, 2017

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Passing smart pointers is a critical topic that is seldom addressed. This ends with the C++ core guidelines…

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C++ Core Guidelines: Rules for Smart Pointers

December 15, 2017

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There were a lot of C++ experts who said that smart pointers were the essential feature of C++11. Today,…

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C++ Core Guidelines: Rules for Allocating and Deallocating

December 8, 2017

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The guidelines have six rules for explicit memory allocation and deallocation. Six! Maybe you are surprised…

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C++ Core Guidelines: Rules about Resource Management

December 1, 2017

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This and the following posts will probably be about the most critical concern in programming: resource…

Memory Pool Allocators by Jonathan Müller

January 9, 2017

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After I have written a few posts about memory management in C++, I'm very glad to present Jonathan Müller,…

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Pros and Cons of the various Memory Allocation Strategies

January 7, 2017

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In C++ you have the choice between various memory allocation strategies. In addition to the frequently…

Strategies for the Allocation of Memory

January 5, 2017

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There are a lot of different strategies for allocating memory. Programming languages like Python or Java…

Latest news

std::execution: Inclusive ScanDecember 2, 2024 - 10:30 am
Inclusive scan solves problems related to range queries, such as calculating the sum of a range of elements in an array. It is also used in range minimum queries and various other algorithms. Before I present the asynchronous inclusive scan, I introduce the inclusive scan, aka prefix sum. Prefix Sum In computer science, the prefix […]
std::execution: Asynchronous AlgorithmsNovember 25, 2024 - 9:06 am
std::execution supports many asynchronous algorithms for various workflows. Presenting proposal P2300R10 is not easy. First, it is very powerful, and second, it is very long. Therefore, I concentrate on specific aspects of the proposal. What are the priorities of this proposal? Priorities The terms execution resource, execution agent, and scheduler are essential for the understanding […]
std::executionNovember 18, 2024 - 9:03 am
std::execution, previously known as executors or Senders/Receivers, provides “a Standard C++ framework for managing asynchronous execution on generic execution resources“. (P2300R10) Side Note Change of plans. My original plan was to present the C++26 library after the core language. However, the implementation status of the library is not good enough. Therefore, I decided to continue […]
C++26 Core Language: Small ImprovementsNovember 4, 2024 - 8:34 am
There are more small improvements in the C++26 language, which you should know. static_assert extension First, here’s the syntax of static_assert in C++11: static_assert(compile time predicate, unevaluated string) With C++26, the string can be a user-defined type having the following properties: static_assert can now be used with a format string. Here’s a nice example from […]
Placeholders and Extended Character SetOctober 28, 2024 - 10:19 am
Placeholders are a nice way to highlight variables that are no longer needed. Additionally, the character set of C++26 will be extended. Placeholders Structured bindings are a C++17 feature that allows you to bind multiple variables to the elements of a structured object. The following program demonstrates using tuples and structured bindings to return and […]
Contracts in C++26October 21, 2024 - 9:54 am
Contracts allow you to specify preconditions, postconditions, and invariants for functions. Contracts should already be part of C++20 but were removed in the standard meeting in Cologne. Here is what Herb Sutter said about contracts on Sutter’s Mill: “contracts is the most impactful feature of C++20 so far, and arguably the most impactful feature we […]