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[edit]

.


`namespace` = __`;`	(1)

`namespace` = `::`__`;`	(2)

`namespace` = _`::`__`;`	(3)

__.

, . , .

#include <iostream>
 
namespace foo {
    namespace bar {
         namespace baz {
             int qux = 42;
         }
    }
}
 
namespace fbz = foo::bar::baz;
 
int main()
{
    std::cout << fbz::qux << '\n';
}

:

	[]
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