Decralation of class inside other class and definition outside this class

[=?ISO-8859-2?Q?Miros=B3aw?= Makowiecki]

We have here class of C++ language:
namespace Apt
{
class Name1
{
public:
class Name2;
};
}
I 'm give ebove class Name2 so a declalation of class without a definition
because to it do not shaded class Name1.
Question:How have it define class Name2 outside of class Name1,and to have a
decralation od class Name2 inside a class Name1?
Thanks in Advance.

 

[Robert Bauck Hamar]

We have here class of C++ language:
namespace Apt
{
class Name1
{
public:
class Name2;
};
}
I 'm give ebove class Name2 so a declalation of class without a
definition
because to it do not shaded class Name1.
Question:How have it define class Name2 outside of class Name1,and to have
a decralation od class Name2 inside a class Name1?
Thanks in Advance.

namespace Apt
{
class Name1 { public: class Name2; /*...*/ };
class Name1::Name2 { /*...*/ };
}

 

[Alf P. Steinbach]

* Mirosław Makowiecki:

We have here class of C++ language:
namespace Apt
{
class Name1
{
public:
class Name2;
};
}
I 'm give ebove class Name2 so a declalation of class without a definition
because to it do not shaded class Name1.
Question:How have it define class Name2 outside of class Name1

class Name1::Name2
{
...
};

,and to have a decralation od class Name2 inside a class Name1?

?