10.8.1 Fully qualified names
Every namespace and type has a fully qualified name, which uniquely
identifies the namespace or type
amongst all others. The fully qualified name of a namespace or type N is
determined as follows:
?If N is a member of the global namespace, its fully qualified name is N.
?Otherwise, its fully qualified name is S.N, where S is the fully
qualified name of the namespace or type
in which N is declared.
In other words, the fully qualified name of N is the complete hierarchical
path of identifiers that lead to N,
starting from the global namespace. Because every member of a namespace or
type must have a unique
name, it follows that the fully qualified name of a namespace or type is
always unique.
[Example: The example below shows several namespace and type declarations
along with their associated
fully qualified names.
class A {} // A
namespace X // X
{
class B // X.B
{
class C {} // X.B.C
}
namespace Y // X.Y
{
class D {} // X.Y.D
}
}
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namespace X.Y // X.Y
{
class E {} // X.Y.E
}
end example]