Answers for "cpp namespace"

what is namespace in c++

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

what is namespace in c++

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

what is namespace in c++

//namespace is a declarative region to provide scope for identifiers
#include <bits/stdc++.h>

using namespace std; //including namespace std for cin and cout
//my custom namespace for variables and functions
namespace abc
{
  void fun()
  {
    cout<<"Hello world"<<endl;
  }
  int x=10;
}
using namespace abc;
int main()
{
  cout<<10;
  fun();
  return 0;
}

c++ namespace example

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

c++ namespace

#include <iostream>
using namespace std;


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

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namespace c++

Namespace std::cout or cout <<