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C++ is a very popular programming language (an extension of the original C) that is commonly used to program many of GNU/Linux's core programs. It's often used to write object-oriented software.

1 History
2 Language features
3 Examples
4 Further reading
5 Books
6 See also
7 External links

History

It was designed by Bjarne Stroustrup of AT&T Bell Labs as a successor to C. Almost anything that can be done in any language can be done in C++, but it requires a language lawyer to know what is and what is not legal — the design is almost too large to hold in even hackers' heads. Much of the cruft results from C++'s attempt to be backward compatible with C. Stroustrup himself has said in his retrospective book The Design and Evolution of C++ (p. 207), “Within C++, there is a much smaller and cleaner language struggling to get out.”

Language features

strong type checking
namespaces
templates
operator overloading
exception handling
The standard library
- STL
  - containers
  - generic algorithms
  - iterators
- strings
- streams
- numerics
- The entire C standard library

Examples

// A very small C++ program. #include <iostream> int main() { std::cout << "Hello, world!" << std::endl; return 0; }

This displays the phrase "Hello, world!" on the screen, similar to the simpler shell command "echo Hello, world!" used in the Linux console.

Books

The C++ Programming Language, Bjarne Stroustrup
Effective C++: 50 Specific Ways to Improve Your Programs and Design, Scott Meyers
Code Complete, Steve McConnell
Accelerated C++, Andrew Koenig & Barbara E. Moo
Thinking in C++ Vol 1&2 , Bruce Eckel, free download from Mindview
C++ - How To Program, Fifth Edition, H. M. Deitel
C++ In Plain English, Brian Overland