Dynamic Namespaces

[Joe]

Hi folks,

I am writing a application in which different components will be added
with time. Each component in each own C++ source , header file. I want
each component to have a generic interface (functions).
Each component will have a unique namespace to encapsulate the generic
functions to the component. My question is this: Is it possible for the
main routine that processes these components to dynamically solve the
namespace before calling the appropriate function ?
Example: Every component will have a GetID() function.
Component 1 (comp1.cpp)
---------------------------------------
namespace comp_one
{
long GetID(void);
}

Component 2 (comp2.cpp)
---------------------------------------
namespace comp_two
{
long GetID(void);
}

MAIN routine (main.cpp)
------------------------------------

// scan through settings file
MaxComps = read from ini file;

for (int i=1;i<MaxComps;i++)
{
< Namespace i >::GetID();

// do something ...

}

// continue

Reagrds
joe

[pasalic.zaharije]

Joe je napisao:

Hi folks,

I am writing a application in which different components will be added
with time. Each component in each own C++ source , header file. I want
each component to have a generic interface (functions).
Each component will have a unique namespace to encapsulate the generic
functions to the component. My question is this: Is it possible for the
main routine that processes these components to dynamically solve the
namespace before calling the appropriate function ?
Example: Every component will have a GetID() function.
Component 1 (comp1.cpp)
---------------------------------------
namespace comp_one
{
long GetID(void);
}

Component 2 (comp2.cpp)
---------------------------------------
namespace comp_two
{
long GetID(void);
}

MAIN routine (main.cpp)
------------------------------------

// scan through settings file
MaxComps = read from ini file;

for (int i=1;i<MaxComps;i++)
{
< Namespace i >::GetID();

// do something ...

}

// continue

Reagrds
joe

Namespaces are thing for diferent usage . You probably mis-interpret
meaning of namespace.

Why yuo need namespace for every component? Use class and make member
function
GetID():

class Com1
{
// . . . .
long GetID();
};

class Com2
{
// . . . .
long GetID();
};
Or better use virtual functions:

class BaseComponent
{
// ....
virtual long GetID() = 0;
};

class Com1 : public BaseComponent
{
//
long GetID() { /* ... */ }
};

So you can make container of 'BaseComponent*' and call GetIDs very
easy.
Some advice (do not use it for 100%) : use namespace to avoid name
conflicts with other libs