Programming Concepts



                (1)        Meaning of # in programming 

In programming, the ( # ) symbol is called a hash or pound sign. It is used in various programming languages for different purposes. In Python, for example, it is used to indicate a comment. A comment is a line of code that is not executed by the computer but is used to explain the code to the programmer or anyone who reads the code. In HTML, the # symbol is used to indicate an anchor tag or a hyperlink.


                (2)                   #include

In C++, the #include directive is used to include a file in the source code. The file can be a header file or a source file. When the preprocessor encounters an #include directive, it replaces the directive with the contents of the specified file.


                (3)                  Iostream 

In C++, iostream is a header file that provides input and output functionality using streams. A stream is a sequence of bytes.

  

 

  Object  Description
  cin  Standard       input stream   (object)
  coutStandard output stream (object)
  cerrStandard output stream for errors (object)
  clogStandard output stream for logging (object)




                            (4)  Compilers


A compiler is a program that takes in source code written in one language (called the source language) and returns source code written in another language (called the target language).

                                  

 






Popular posts from this blog

C++ Tools

Image
Frist : Visual studio code.  There are many reasons why Visual  Studio Code  is a popular choice for C++ development. - Here are a few of the key benefits : • Lightweight and cross-platform.  VSCode is a lightweight editor that can be used on Windows, Linux, and macOS •  IntelliSense support . VSCode provides IntelliSense support for C++, which helps you to write code more quickly and accurately.  Second : MSYS2 There are several reasons why you might want to install MSYS2 for C++ development : • To get a wide range of C++ tools and libraries. • To cross-compile C++ code for other platforms • Using Meson to build your projects. 
Read more

Variable Naming Rules C++

In C++, variable names are identifiers that must follow specific rules. Here are the key rules for variable naming in C++: •Start with a letter or underscore:  Variable names must start with a letter of the alphabet (A-Z, a-z) or an underscore (_). Letters include both uppercase and lowercase letters. • Use letters, digits, and underscores: Variable names can contain letters, digits (0-9), and underscores (_). However, you cannot use other special characters, such as spaces, punctuation marks, or symbols. • No keywords: Do not use keywords as variable names. Keywords are reserved words in C++ that have special meanings, such as int, for, while, etc. #30DaysOFCreative 
Read more

C++ elements

C++ elements are the building blocks of C++ programs. They include: • Data types: Data types define the type of data that can be stored in a variable or constant.  • Variables: Variables are named locations in memory that can store data. • Constants : Constants are named values that cannot be changed. • Functions: Functions are reusable blocks of code that can be called from other parts of a program. #30DaysOFCreative
Read more