namespace c++

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Jittery Jellyfish answered on June 14, 2020 Popularity 10/10 Helpfulness 1/10

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namespace c++

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Namespace std::cout or cout <<

Popularity 10/10 Helpfulness 1/10 Language cpp

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Tags: c++

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Contributed on Jun 14 2020

Jittery Jellyfish

0 Answers Avg Quality 2/10

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what is namespace in c++

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A namespace is a declarative region that provides a scope to the 
  identifiers (the names of types, functions, variables, etc) inside 
  it. Namespaces are used to organize code into logical groups and to
  prevent name collisions that can occur especially when your code base
  includes multiple libraries

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Contributed on Sep 03 2021

Viper

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c++ custom namespace

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//using namespaces
using namespace std;

//creating namespaces
namespace custom{
  class example{
    public:
    	static int method(){
          return 0;
        }
  };
};

//using custom namespaces
using namespace custom;

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Tags: c++

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Contributed on Oct 14 2020

Annoying Ant

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c++ namespace

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#include <iostream>
using namespace std;


int main() {
    cout<< "Hello World" ; 
}

//If you are a web developer, please give https://code.ionicbyte.com/ a try

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Contributed on Aug 24 2021

IonicByte

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c++ namespace example

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#include <iostream>
using namespace std;
namespace square{
	int x;
	int y;
}
int main(){
	using namespace square;
	x = 10;
	y = 0;
	cout << x << y << endl;
}

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Contributed on May 01 2021

Chris24XD

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namespace c++

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//Namespaces provide a method for preventing name conflicts in large projects.
//Symbols declared inside a namespace block are placed in a named scope that
//prevents them from being mistaken for identically-named symbols in other
//scopes. Multiple namespace blocks with the same name are allowed.
//All declarations within those blocks are declared in the named scope.
namespace yourName{
	//any code you want to put inside
}

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Source: en.cppreference.com

Tags: c++

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Contributed on May 30 2022

Sorann

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what is namespace in c++

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Namespaces avoids name collisions bacause of large libraray in c++.
This feature was not supported in C

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Contributed on Sep 03 2021

Viper

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namespace c++

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namespace Q
{
    namespace V   // V is a member of Q, and is fully defined within Q
    { // namespace Q::V { // C++17 alternative to the lines above
        class C { void m(); }; // C is a member of V and is fully defined within V
                               // C::m is only declared
        void f(); // f is a member of V, but is only declared here
    }
}

Popularity 7/10 Helpfulness 1/10 Language cpp

Source: en.cppreference.com

Tags: c++

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Contributed on Jan 12 2024

King ZirnitraX

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namespace c++

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