Archive for category: C++ Core Guidelines

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C++ Core Guidelines: Supporting Sections

August 1, 2019

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Let's recapitulate. I have written about 100 posts on the C++ Core Guidelines in the last two years.…

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C++ Core Guidelines: When RAII breaks

July 24, 2019

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Before I write about the very popular RAII idiom in C++, I want to present you with a trick, which is…

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More Rules about the Regular Expression Library

July 18, 2019

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There is more to write about the usage of regular expressions than I wrote in my last post The Regular…

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The Regular Expression Library

July 8, 2019

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My original plan was to write about the rules of the C++ Core Guidelines for the regex and chrono library,…

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C++ Core Guidelines: Improved Performance with Iostreams

July 4, 2019

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As easy as my title and the rules of the C++ core guidelines sound, getting more performance out of the…

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Stuff you should know about In- and Output with Streams

June 28, 2019

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Today's post is about what you should know about Iostreams. In particular, I write about formatted and…

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C++ Core Guidelines: IOstreams

June 20, 2019

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When you interact with the outside world, the iostream library is the way to go in C++. As always, you…

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C++ Core Guidelines: Rules for Strings

June 13, 2019

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The C++ core guidelines use the term string as a sequence of characters. Consequently, the guidelines…

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C++ Core Guidelines: Avoid Bounds Errors

June 5, 2019

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When you access an element outside a container of the STL, the result is not so promising. Your effect…

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More special Friends with std::map and std::unordered_map

May 29, 2019

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Modern C++ has eight associative containers, but your special friends should be std::map and std::unordered_map.…

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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 […]
C++20: Basic Chrono Terminology with Time Duration and Time PointMarch 18, 2024 - 10:34 am
Today, I continue my journey through the basic types with time durations and time points. Time Durations C++14 introduced helper types such as std::chrono::seconds for time durations and corresponding time literals such as 5s. C++20 added new helper types. The following table shows all for completeness. Often the time duration std::chrono::days and the calendar date […]
My Next Mentoring Program: “Concurrency with Modern C++” startsMarch 11, 2024 - 11:24 am
My next mentoring program, “Concurrency with Modern C++”, starts on the 15th of March. Registration is open.