In C++, each class introduces a new scope, so the same name can be declared as a member in more than one class. In C, a name space is a region of the compiler’s symbol table.
What is #region in C?
#pragma region lets you specify a block of code that you can expand or collapse when using the outlining feature of the Visual Studio editor.
Does C++ have #region?
The #region feature is part of the C# specification. C++ has no such equivalent.
Should I use pragma region?
#pragma region has no effect on compilation whatsoever. It is just a convenience tool for an IDE to expand/collapse snippets of code. Any #pragma directive that is unknown to a compiler will be ignored. Some compilers may issue a warning.
How do I create a region in Visual Studio?
Features Select some piece of code and use (ctrl+r, ctrl+e), type your region name and press enter. Or select some piece of code, press F1 and type “Move into #region”. To remove a single #region, click the line that contains ‘#region’ keyword and use (ctrl+r, ctrl+e).
What is the use of #region?
Use the #Region directive to specify a block of code to expand or collapse when using the outlining feature of Visual Studio IDE. You can place, or nest, regions within other regions to group similar regions together.
What is meant by region code?
A region code is a digital rights management (DRM) technique that directly gives control to film distributors in aspects relating to film release such as content, release date and pricing according to region or country.
What is #pragma C++?
A pragma is a compiler directive that allows you to provide additional information to the compiler. This information can change compilation details that are not otherwise under your control. For example, the pack pragma affects the layout of data within a structure. No pragmas are defined by the C++ standard.
What is pragma in Visual Studio?
Pragma directives specify machine-specific or operating system-specific compiler features. The __pragma keyword, which is specific to the Microsoft compiler, enables you to code pragma directives within macro definitions. The standard _Pragma preprocessor operator was introduced in C99 and adopted by C++11.
How does Pragma once work?
In the C and C++ programming languages, pragma once is a non-standard but widely supported preprocessor directive designed to cause the current source file to be included only once in a single compilation.
How do I Collapse all regions in Visual Studio?
Ctrl + M + O will collapse all. Ctrl + M + P will expand all and disable outlining.
How do I collapse html in Visual Studio?
Just hover your mouse on code editor and wait a moment, don’t move your mouse 🙂 The outline tree will show out. right click on html, cshtml or aspx file in solution explorer and select open with option: in dialog select html editor and click on set as defualt button.
Why do we use regions in C#?
Regions in C# is a useful feature that helps manage code in areas that can be hidden or visible. Learn how to use regions in Visual Studio to improve code readability. Visual Studio . NET gives us some very handy tools to improve readability in our code.
How do I enable outlining in Visual Studio?
Please go to Tools > Options… > Text Editor > C# > Advanced > Outlining and make sure the option “Enter outlining mode when files open” already checked as below, the setting location is different with C++ that you found.
What is an example of region?
The definition of a region is a specific area. The area in your body that is close to your stomach is an example of your stomach region. The state of California is an example of a state that would be described as being in the Western region of the United States. Costs in the region of one billion dollars.
What is the concept of region?
A region is an area of land that has common features. A region can be defined by natural or artificial features. Language, government, or religion can define a region, as can forests, wildlife, or climate. Regions, large or small, are the basic units of geography.
What is region and its types?
A region is an area that shares both human and physical characteristics, and is classified in geography as three types: formal, functional and perceptual.
What is my Region Code?
DVD and Blu Ray Region Code Maps Region code Country/Area 1 Bermuda, Canada, United States and U.S. territories 2 The Middle East, Western Europe, Central Europe, Egypt, French overseas territories, Greenland, Japan, Lesotho, South Africa and Swaziland 3 Southeast Asia, Hong Kong, Macau, South Korea and Taiwan.
What countries are in region 2?
Region 2 – Japan, Europe, South Africa, the Middle East (including Egypt) and Greenland. Region 3 – Southeast Asia, and East Asia (including Hong Kong). Region 4 – Australia, New Zealand, the Pacific Islands, Central America, Mexico, South America, and the Caribbean.
What is India’s region code?
Blu-ray regions country list Region Code Area B Europe, Greenland, French territories, Middle East, Africa, Australia and New Zealand C India, Bangladesh, Nepal, Mainland China, Pakistan, Russia, Central and South Asia Region Free All areas.
Why pragma is used in C++?
The preprocessor directive #pragma is used to provide the additional information to the compiler in C/C++ language. This is used by the compiler to provide some special features. The table of some of #pragma directives in C/C++ language is given as follows, Sr.No.
What is the use of pragma once?
The use of #pragma once can reduce build times, as the compiler won’t open and read the file again after the first #include of the file in the translation unit. It’s called the multiple-include optimization.
What does pragma stand for?
Pragma is short for pragmatic information. So, simple. In plain English, pragmatic is an adjective that means sensible and practical.
Should I use Pragma once or Ifndef?
#pragma once is shorter than an include guard, less error prone, supported by most compilers, and some say that it compiles faster (which is not true [any longer]). But I still suggest you go with standard #ifndef include guards.
What are pragma warnings?
The pragma warning( push ) stores the current warning state for every warning. The pragma warning( push, n ) stores the current state for every warning and sets the global warning level to n.
How do you suppress warnings?
You may just use @SuppressWarnings(“unchecked”) to suppress unchecked warnings in Java. In Class. If applied to class level, all the methods and members in this class will ignore the unchecked warnings message. In Method. If applied to method level, only this method will ignore the unchecked warnings message. In Property.