C++

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C++
Paradigm(s) Multi-paradigm:[1] procedural, functional, object-oriented, generic
Appeared in 1983
Designed by Bjarne Stroustrup
Developer Bjarne Stroustrup
Bell Labs
ISO/IEC JTC1/SC22/WG21
Stable release ISO/IEC 14882:2011 / 2011
Typing discipline Static, unsafe, nominative
Major implementations C++ Builder, clang, Comeau C/C++, GCC, Intel C++ Compiler, Microsoft Visual C++, Sun Studio
Dialects ISO/IEC C++ 1998, ISO/IEC C++ 2003, ISO/IEC C++ 2011
Influenced by C, Simula, Ada 83, ALGOL 68, CLU, ML[1]
Influenced Perl, LPC, Lua, Pike, Ada 95, Java, PHP, D, C99, C#, Falcon
OS Cross-platform (multi-platform)
Usual filename extensions .h .hh .hpp .hxx .h++ .cc .cpp .cxx .c++

Wikibooks logo C++ Programming at Wikibooks

Bjarne Stroustrup, the creator of C++

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

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

Example[change | change source]

The following text is C++ source code and it will write the words "Hello World!" to the screen when it has been compiled and is executed.

#include <iostream>
using namespace std;
 
int main()
{
    cout << "Hello World!";
 
    return 0;
}

The following text is C++ source code and it will add 3 + 2 and then writes the answer on the screen where it has been compiled and is executed.

// Iostream is the input and output stream; which stores functions such as print etc.
#include <iostream>
// Namespace std; is the standard namespace which also stores some functions
using namespace std;
 
// We are now creating an important instance; the main class
int main()
{
    //Cout means print
    cout << 3 + 2;
    //Return is not needed. All it does is tell the computer that the code was compiled successfully; by sending a zero
    return 0;
}

The following text is C++ source code; and it subtracts, multiplies, divides and then write the answer on the screen where it has been compiled and is executed.

#include <iostream>
using namespace std;
 
int main()
{
 
    int a = 5;
    int b = 10;
    int c = 20;
 
    cout << a-b-c;
    cout << a*b*c;
    cout << a/b/c;
 
    return 0;
}

References[change | change source]

  1. 1.0 1.1 Stroustrup, Bjarne (1997). "1". The C++ Programming Language (Third ed.). ISBN 0201889544. OCLC 59193992.