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# C

Paradigm(s) C++ logo used by ISO. Multi-paradigm:[1] procedural, functional, object-oriented, generic 1983 Bjarne Stroustrup Bjarne StroustrupBell LabsISO/IEC JTC1/SC22/WG21 ISO/IEC 14882:2017 / 1 December 2017; 4 years ago Static, unsafe, nominative ISO/IEC C++ 1998, ISO/IEC C++ 2003, ISO/IEC C++ 2011, ISO/IEC C++ 2014, ISO/IEC C++ 2017, C, Simula, Ada 83, ALGOL 68, CLU, ML[1] Perl, LPC, Lua, Pike, Ada 95, Java, PHP, D, C99, C#, Falcon Cross-platform (multi-platform) .h .hh .hpp .hxx .h++ .cc .cpp .cxx .c++ C++ Programming at Wikibooks
Bjarne Stroustrup, the creator of C++

C++ (pronounced "see plus plus") is a computer programming language based on C. It was created for writing programs for many different purposes. In the 1990s, C++ became one of the most used programming languages in the world.

The C++ programming language was developed by Bjarne Stroustrup at Bell Labs in the 1980s, and was originally named "C with classes". The language was planned as an improvement on the C programming language, adding features based on object-oriented programming. Step by step, a lot of advanced features were added to the language, like operator overloading, exception handling and templates.

C++ Archived 2020-07-13 at the Wayback Machine runs on a variety of platforms, such as Windows, Mac OS, and the various versions of UNIX. C++ is simple and practical approach to describe the concepts of C++ for beginners Archived 2020-07-13 at the Wayback Machine to advanced software engineers.

C++ is a general-purpose programing language which means that it can be used to create different variety of applications. C++ is used for variety of application domains.

## Example

The following text is C++ source code and it will write the words "Hello World!" on the screen when it has been compiled and is executed. This program is typically the first program a programmer would write while learning about programming languages.

// This is a comment. It's for *people* to read, not computers. It's usually used to describe the program.

// Make the I/O standard library available for use in the program.
#include <iostream>
using namespace std;
// We are now defining the main function; it is the function run when the program starts.
int main()
{
// Printing a message to the screen using the standard output stream std::cout.
cout << "Hello World!";
}


This program is similar to the last, except it will add 3 + 2 and print the answer instead of "Hello World!".

#include <iostream>

int main()
{
// Print a simple calculation.
std::cout << 3 + 2;
}


This program subtracts, multiplies, divides and then prints the answer on the screen.

#include <iostream>

int main()
{
// Create and initialize 3 variables, a, b, and c, to 5, 10, and 20.
int a = 5;
int b = 10;
int c = 20;

// Print calculations.
std::cout << a-b-c;
std::cout << a*b*c;
std::cout << a/b/c;
}


## References

1. Stroustrup, Bjarne (1997). "1". The C++ Programming Language (Third ed.). . .