C++ LANGUAGE DISCONTINUOUS NAMESPACES

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C++ LANGUAGE DISCONTINUOUS NAMESPACES

Discontinuous Namespaces 


A namespace can be defined in several parts and so 
a namespace is made up of the sum of its separately 
defined parts. The separate parts of a namespace can 
be spread over multiple files. 

So, if one part of the namespace requires a name 
defined in another file, that name must still be 
declared. Writing a following namespace definition 
either defines a new namespace or adds new elements 
to an existing one: 

namespace namespace_name { 
   // code declarations 
}