Sadie  Ratke

Sadie Ratke

1596358260

C# 9: Range Operators in Switch Constructs

Since C# was first introduced, developers have complained about the lack of a range operator in switch constructs. This made switches far less useful in C# than they were in VB. As part of the pattern-matching enhancements for C# 9, this limitation has been addressed.

In this feature, the following patterns will be allowed following the case or is keyword.

  • < constant-expression
  • constant-expression
  • <= constant-expression
  • = constant-expression

This is still more limited than VB in the sense that only constants are allowed. This becomes a problem when you are dealing with dates, times, or other comparable structs, as they do not have a constant representation in C#. (Date/time values can be expressed as a constant in VB, but it is discouraged because one runs into DateTime.Kind issues.) When asked why, Neal Gafter wrote,

It doesn’t do the same thing that pattern-matching was designed to do. Specifically, it was designed to work with constants specifically so that the compiler can analyze, diagnose, and optimize the totality of the set of pattern-matching operations. If the compiler doesn’t know the value it is matching against, it cannot do any of that. That’s not to say it is necessarily a bad idea, but it is a pretty different animal. Do ordinary expressions not satisfy that need?

#c# 9 #.net #development #programming-c #csharp

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Buddha Community

C# 9: Range Operators in Switch Constructs
Abdullah  Kozey

Abdullah Kozey

1617738420

Unformatted input/output operations In C++

In this article, we will discuss the unformatted Input/Output operations In C++. Using objects cin and cout for the input and the output of data of various types is possible because of overloading of operator >> and << to recognize all the basic C++ types. The operator >> is overloaded in the istream class and operator << is overloaded in the ostream class.

The general format for reading data from the keyboard:

cin >> var1 >> var2 >> …. >> var_n;

  • Here, var1var2, ……, varn are the variable names that are declared already.
  • The input data must be separated by white space characters and the data type of user input must be similar to the data types of the variables which are declared in the program.
  • The operator >> reads the data character by character and assigns it to the indicated location.
  • Reading of variables terminates when white space occurs or character type occurs that does not match the destination type.

#c++ #c++ programs #c++-operator overloading #cpp-input-output #cpp-operator #cpp-operator-overloading #operators

Sadie  Ratke

Sadie Ratke

1590567082

The Switch statement in C#

Switch is a multi-way selection statement that resolves an answer matching one or more values of a supplied variable. Its roots are a fundamental programming flow control statement.

The switch statement is often used as an alternative to an if-else construct. Switch becomes a logical choice when a single expression is tested against three or more conditions.

The statement uses a combination of different keywords: switch, case, default, break and when.

#c #c# #c++ #programming-c #switch

Let's Give Some Unit Testing Love to C# 8 and C# 9 Features

According to StackOverflow, C## is one of the most-loved programming languages. And I completely understand that—it is powerful, easy to learn and consistently improving and developing. It is a living language. :)

The last couple of years, there were new features added to the languages, and the new versions keep coming up—C## 7, C## 8, C## 9.

As you know, we at Progress Telerik are proud that our products are always in sync with the latest things in the .NET world, and C## 9 and JustMock are no exception.

#c #c# #c#8 #c#9

Sadie  Ratke

Sadie Ratke

1596358260

C# 9: Range Operators in Switch Constructs

Since C# was first introduced, developers have complained about the lack of a range operator in switch constructs. This made switches far less useful in C# than they were in VB. As part of the pattern-matching enhancements for C# 9, this limitation has been addressed.

In this feature, the following patterns will be allowed following the case or is keyword.

  • < constant-expression
  • constant-expression
  • <= constant-expression
  • = constant-expression

This is still more limited than VB in the sense that only constants are allowed. This becomes a problem when you are dealing with dates, times, or other comparable structs, as they do not have a constant representation in C#. (Date/time values can be expressed as a constant in VB, but it is discouraged because one runs into DateTime.Kind issues.) When asked why, Neal Gafter wrote,

It doesn’t do the same thing that pattern-matching was designed to do. Specifically, it was designed to work with constants specifically so that the compiler can analyze, diagnose, and optimize the totality of the set of pattern-matching operations. If the compiler doesn’t know the value it is matching against, it cannot do any of that. That’s not to say it is necessarily a bad idea, but it is a pretty different animal. Do ordinary expressions not satisfy that need?

#c# 9 #.net #development #programming-c #csharp

Tamale  Moses

Tamale Moses

1624240146

How to Run C/C++ in Sublime Text?

C and C++ are the most powerful programming language in the world. Most of the super fast and complex libraries and algorithms are written in C or C++. Most powerful Kernel programs are also written in C. So, there is no way to skip it.

In programming competitions, most programmers prefer to write code in C or C++. Tourist is considered the worlds top programming contestant of all ages who write code in C++.

During programming competitions, programmers prefer to use a lightweight editor to focus on coding and algorithm designing. VimSublime Text, and Notepad++ are the most common editors for us. Apart from the competition, many software developers and professionals love to use Sublime Text just because of its flexibility.

I have discussed the steps we need to complete in this blog post before running a C/C++ code in Sublime Text. We will take the inputs from an input file and print outputs to an output file without using freopen file related functions in C/C++.

#cpp #c #c-programming #sublimetext #c++ #c/c++