error: ISO C++ forbids declaration of 'm' with no type

[brucedd]

I suspect I don't understand namespaces or something, but does anyone have an idea of why the following code segment which is all in a single *.h file causes a compile error?

namespace first {

typedef class _A {
public:
_A() {};
~_A() {};
void set(int c) {b = c;};
int b;
} A;

} //end namespace first

namespace first {
namespace second {
namespace third {

class foo {
public:
foo() {};
~foo() {};
int c;
A m;
m.set(c);
};

} // end third
} //end second
} // end first

Any help or debug ideas appreciated. Thanks

[weaknessforcats]

Several things look funny but this is an error:

m.set(c);

That is a function call inside a class definition. You can't do that.

[brucedd]

Oh, of course you are right about that. I'll need to find another way to do this because when I originally tried writing the class _A so the constructor took an int as an argument the compiler didn't like that either:

class foo {
foo() {};
~foo() {};

A m(c);

}

[weaknessforcats]

Really?

class _A
{
    public:
       _A(int);
};
 

but that requires:

class foo
 {
     public:
        foo(int arg) : m(arg){};
       ~foo() {};
     private:
       A m;
};
 

Did you try this?