Archiv des Autors: oliverfunke

Collaborative Software Testing

Erstellt am März 29, 2020 von oliverfunke

Introduction Over the past decades, software development and software testing have greatly changed. Modern software systems have become very complex and at the same time software release cycles have kept shortening. Additional aspects like cyber security, distributed and connected systems, … Weiterlesen →

Veröffentlicht unter Projektleitung, Testing | Kommentar hinterlassen

Fuzz Testing

Erstellt am Januar 19, 2020 von oliverfunke

Introduction Software quality strongly depends on software testing. Due to the huge complexity of software systems they will always contain errors. Even for a single function with a few parameters you would need thousands or millions of tests to check … Weiterlesen →

Veröffentlicht unter Testing | Kommentar hinterlassen

Automated cognitive testing

Erstellt am November 17, 2019 von oliverfunke

In this article I would like to give few basic thoughts on the topic of cognitive testing and clarify what is meant by this kind of testing, what cognitive software systems are, how to test such systems and what is … Weiterlesen →

Veröffentlicht unter Projektleitung, Testing | Kommentar hinterlassen

String View in C++17 (std::string_view)

Erstellt am Oktober 20, 2019 von oliverfunke

The C++ string (std::string) is like a thin wrapper which stores its data on the heap. When you deal with strings it happens very often that a string copy must be created and therefore a memory allocation is done. But … Weiterlesen →

Veröffentlicht unter C++ | Kommentar hinterlassen

“if constexpr” in C++17 (static if)

Erstellt am September 29, 2019 von oliverfunke

With C++17 the „if constexpr“ statement was introduced. This so called “static if” or “compile-time if-expression” can be used to conditionally compile code. The feature allows to discard branches of an if statement at compile-time based on a constant expression … Weiterlesen →

Veröffentlicht unter C++ | 1 Kommentar

Auto Type Deduction in Range-Based For Loops

Erstellt am September 7, 2019 von oliverfunke

Range-based For Loops offer a nice way to loop over the elements of a container. In combination with Auto Type Deduction the source code will become very clean and easy to read and write. The Auto Type Deduction is available … Weiterlesen →

Veröffentlicht unter C++ | 1 Kommentar

C# Protected Internal vs Private Protected

Erstellt am August 18, 2019 von oliverfunke

C# offers the composed access modifiers “protected internal”. With C# 7.2 a new composed access modifier was added: “private protected”. Unfortunately, these modifiers are hard to understand as their names don’t reflect their meaning. Within this article I want to … Weiterlesen →

Veröffentlicht unter .NET, C# | Kommentar hinterlassen

Ref Return and Ref Locals in C# 7

Erstellt am Juli 28, 2019 von oliverfunke

The C# language supports passing arguments by value or by reference since the first language version. But returning a value was possible by value only. This has been changed in C# 7 by introducing two new features: ref returns and … Weiterlesen →

Veröffentlicht unter .NET, C# | Kommentar hinterlassen

Pattern Matching in C# 7

Erstellt am Juli 14, 2019 von oliverfunke

Patterns are used to test whether a value matches a specific expectation and if it matches patterns allow to extract information from the value. You already create such pattern matchings by writing if and switch statements. With these statements you … Weiterlesen →

Veröffentlicht unter .NET, C# | Kommentar hinterlassen

C++17: initializers in if-statement and switch-statement

Erstellt am Juni 22, 2019 von oliverfunke

With C++17 it is possible to initialize a variable inside an if-statement and a switch-statement. We already know and use this concept in the for-statement. To be honest: I don’t like this feature. Within this article I want to introduce … Weiterlesen →

Veröffentlicht unter C++ | 2 Kommentare