namespace is not visible in a class?

[r.z.]

I include 2 headers: the first defines some namespace A and the second
defines class B which contains some member instances of classes defined in
namespace A.

header1:

namespace A
{
class C;
};

header2:

class B
{
A::C c_instance;
};

Why does the compiler complain during compilation of header2 that A is not a
namespace?

[Colander]

On Mar 29, 12:01 am, "r.z." <[e-mail] wrote:

I include 2 headers: the first defines some namespace A and the second
defines class B which contains some member instances of classes defined in
namespace A.

header1:

namespace A
{
class C;

};

header2:

class B
{
A::C c_instance;

};

Why does the compiler complain during compilation of header2 that A is not a
namespace?

My compiler says "field 'c_instance' has incomplete type" when tried.

Could you post some minimal code that shows the error?

[r.z.]

My compiler says "field 'c_instance' has incomplete type" when tried.

Could you post some minimal code that shows the error?

just put class C definition instead of its declaration in namespace A and it
shoul give you the same error as me

[Ian Collins]

r.z. wrote:

I include 2 headers: the first defines some namespace A and the second
defines class B which contains some member instances of classes defined in
namespace A.

header1:

namespace A
{
class C;
};

header2:

class B
{
A::C c_instance;
};

Why does the compiler complain during compilation of header2 that A is not a
namespace?

Because you haven't included header1?

--
Ian Collins.

[r.z.]

Because you haven't included header1?

it is included - I can use A::C c_instance in main.cpp but not in header2.

[Colander]

On Mar 29, 12:25 am, "r.z." <[e-mail] wrote:

My compiler says "field 'c_instance' has incomplete type" when tried.

Could you post some minimal code that shows the error?

just put class C definition instead of its declaration in namespace A and it
shoul give you the same error as me

Nope, the next compiles fine;
namespace A
{
class C{
public:
C(){};
};
};

class B
{
A::C c;
};

int main(void)
{
B b;
return 0;
}
So, or your compiler is wrong, or there is something else that is
important to the problem in your code that you havn't posted to this
group yet....

[r.z.]

SOLVED.
I did forget to include header1 in header2.
I am an ass of a developer.
thanks for comments.