Archive for category: Functional

CharakteristikeImmutableDataEng

Immutable Data

January 28, 2017

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A key to purely functional languages is that their data are immutable. Therefore, assignments such as…

Higher-Order Functions

January 26, 2017

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Higher-order functions are the pendant to First-Class Functions because higher-order functions can take…

CharakteristikenFunktionaleProgrammierungFirstClassFunctionsEng

First-Class Functions

January 24, 2017

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One of the characteristics of functional programming is first-class functions. First-class functions…

CharakteristikenFunktionaleProgrammierungEng

The Definition of Functional Programming

January 23, 2017

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The definition of functional programming is relatively easy. Functional programming is programming with…

timeline.FunktionalInCpp17Cpp20Eng

Functional in C++17 and C++20

January 21, 2017

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Which functional feature can we expect with C++17, and for which functional feature can we hope with…

timeline.FunktionalInCpp11Cpp14Eng

Functional in C++11 and C++14: Dispatch Table and Generic Lambdas

January 19, 2017

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My favorite example, the dispatch table, shows how nicely the features in modern C++ work together. A…

FunktionalTR1Cpp11Eng

Functional in TR1 and C++11

January 17, 2017

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This post continues our journey through the functional features of classical, modern, and future C++.…

timeline.FunktionalEng

Functional in C++98

January 15, 2017

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C++ is not a functional programming language, but you can program in a functional style. What are the…

ObjectOrientedGenericFunctional

Object-Oriented, Generic, and Functional Programming

January 12, 2017

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C++ is not a functional programming language. C++ has its roots in procedural and object-oriented programming.…

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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 […]