Archive for category: C++ Core Guidelines

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C++ Core Guidelines: Declarations and Initialisations

January 12, 2018

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Let's continue our tour through the rules for expressions and statements in the C++ core guidelines.…

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C++ Core Guidelines: Rules for Expressions and Statements

December 29, 2017

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There are many rules in the C++ Core Guidelines dealing with expressions and statements. To be precise,…

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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…

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C++ Core Guidelines: Rules for Enumerations

November 24, 2017

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The section to enumerations has eight rules. Since C++11, we have scoped enumerations which overcome…

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C++ Core Guidelines: Rules for Unions

November 17, 2017

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A union is a particular data type where all members start at the same address. A union can hold only…

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C++ Core Guidelines: More Rules for Overloading

November 10, 2017

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I started the last post on my journey through the rules for overloading functions and operators. Let…

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C++ Core Guidelines: Rules for Overloading and Overload Operators

November 4, 2017

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There are ten rules for overloading and overload operators in the C++ core guidelines. Many of them are…

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Time Zones: Online ClassesMay 13, 2024 - 9:39 am
Today, I will continue to present the functionality of the time zones of the C++20 chrono extension. This post is the eight in my detailed journey through the chrono extension in C++20: Various Time Zones for Online Classes The program onlineClass.cpp answers the following question: How late is it in given time zones when I […]
Time Zones: DetailsMay 6, 2024 - 9:22 am
Today, I present the time-zones functionality of the C++20 extension.
C++20: Query Calendar Dates and Ordinal DatesApril 22, 2024 - 9:53 am
The extended chrono library makes it relatively easy to ask for the time duration between calendar dates. This post is the sixth in my detailed journey through the chrono extension in C++20: Query Calendar Dates Without further ado, the following program queryCalendarDates.cpp queries a few calendar dates. // queryCalendarDates.cpp #include <chrono> #include <iostream> int main() […]
C++20: Displaying and Checking Calendar DatesApril 15, 2024 - 9:20 am
I created calendar dates in my last post, “C++20: Creating Calendar Dates,” and I will display and check them today. This post is the fifth in my detailed journey through the chrono extension in C++20: Displaying Calendar Dates Thanks to std::chrono::local_days or std::chrono::sys_days, you can convert calendar dates to a local or a system std::chrono::time_point. […]
C++20: Creating Calendar DatesApril 8, 2024 - 10:51 am
In this post, I will dive deeper into calendar dates and create them. If this post is too overwhelming for you, read my previous ones: C++20 supports constants and literals to make using calendar-date types more convenient. Constants and Literals for Calendar Types Let me start with the constants for std::chrono::weekday, and std::chrono::month. std::chrono::Monday std::chrono::Thuesday […]
C++20: Time of DayMarch 25, 2024 - 10:08 am
This new data type std::chrono::hh_mm_ss in C++20 stands for the time of day. Time of Day std::chrono::hh_mm_ss is the duration since midnight split into hours, minutes, seconds, and fractional seconds. This type is typically used as a formatting tool. First, the following table gives you a concise overview of std::chrono::hh_mm_ss instance tOfDay. Depending on the […]