Concept:

Namespace

Headline

A container for a set of identifiers. Also known as package in Language:Java.

Illustration

Language:CPlusPlus provides declaration of namespaces and resolution of namespaces via the :: operator.

#include <iostream>

// A namespace named a
namespace a {
    char foo() { return 'a'; }
}

// Another namespace, its foo function does not clash with a::foo
namespace b {
    char foo() { return 'b'; }
}

// A function in the global namespace, also no clash
char foo() { return '-'; }

int
main()
{
    std::cout <<    foo() << "\n"; // prints '-'
    std::cout <<  ::foo() << "\n"; // prints '-'
    std::cout << a::foo() << "\n"; // prints 'a'
    std::cout << b::foo() << "\n"; // prints 'b'
}

Metadata

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sameAs

http://en.wikipedia.org/wiki/Namespace

◀

this

memberOf

Vocabulary:Programming

Backlinks

Contributor:hartenfels Contribution:perl

This work is licensed under a Creative Commons Attribution 4.0 International License.

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