c++ namespace example
Example 1: using namespace std in c++
#include
using namespace std;
int main()
{
cout << "Hello World";
system("pause");
return 0;
}
Example 2: what is namespace in c++
//namespace is a declarative region to provide scope for identifiers
#include
using namespace std; //including namespace std for cin and cout
//my custom namespace for variables and functions
namespace abc
{
void fun()
{
cout<<"Hello world"<
Example 3: c++ namespace example
#include
using namespace std;
namespace square{
int x;
int y;
}
int main(){
using namespace square;
x = 10;
y = 0;
cout << x << y << endl;
}
Example 4: namespace c++
Namespace std::cout or cout <<
Example 5: access the namespace members using namespace member function
namespace Parent
{
inline namespace new_ns
{
template
struct C
{
T member;
};
}
template<>
class C {};
}