anonymous class

[josh]

Hi, is there the possibility to create anonymous class (not object) in
C++ like do Java?

as an example:

in Java if I do:

// here Shape is an Interface that is like a c++ class wih only pure
virtual functions
public static void doShape(Shape s)
{
double v, a;

v = s.volume();

a = s.area();
System.out.println("Volume: " + v + " Area: "+ a);
}

than,
doShape(
new Shape() //
{
public double area() {return 0.0;}
public double volume() {return 0.0;}
}
);

the Java compiler creates a new anonymous class that implements the
Shape interface and
than returns its reference. So the above code is like I was doing:

class Implement implements Shape
{
public double area() {return 1.0;}
public double volume() {return 1.0;}
}

Implement i = new Implement();
doShape(i);

Thanks

[anon]

josh wrote:

Hi, is there the possibility to create anonymous class (not object) in
C++ like do Java?

as an example:

in Java if I do:

// here Shape is an Interface that is like a c++ class wih only pure
virtual functions
public static void doShape(Shape s)
{
double v, a;

v = s.volume();

a = s.area();
System.out.println("Volume: " + v + " Area: "+ a);
}

than,
doShape(
new Shape() //
{
public double area() {return 0.0;}
public double volume() {return 0.0;}
}
);

the Java compiler creates a new anonymous class that implements the
Shape interface and
than returns its reference. So the above code is like I was doing:

class Implement implements Shape
{
public double area() {return 1.0;}
public double volume() {return 1.0;}
}

Implement i = new Implement();
doShape(i);

Thanks

You can declare/define a class in your source (cpp) file, and it would
be the same as an anonymous class in java.
Even better - put it in anonymous (nameless) namespace.

[josh]

On 12 Apr, 11:17, anon <[e-mail]:

josh wrote:

Hi, is there the possibility to create anonymous class (not object) in
C++ like do Java?

as an example:

in Java if I do:

// here Shape is an Interface that is like a c++ class wih only pure
virtual functions
public static void doShape(Shape s)
{
double v, a;

v = s.volume();

a = s.area();
System.out.println("Volume: " + v + " Area: "+ a);
}

than,
doShape(
new Shape() //
{
public double area() {return 0.0;}
public double volume() {return 0.0;}
}
);

the Java compiler creates a new anonymous class that implements the
Shape interface and
than returns its reference. So the above code is like I was doing:

class Implement implements Shape
{
public double area() {return 1.0;}
public double volume() {return 1.0;}
}

Implement i = new Implement();
doShape(i);

Thanks

You can declare/define a class in your source (cpp) file, and it would
be the same as an anonymous class in java.
Even better - put it in anonymous (nameless) namespace.

yes but it doesn't anwer my question...

[Gianni Mariani]

josh wrote:

Hi, is there the possibility to create anonymous class (not object) in
C++ like do Java?

....

That would be NO.

[Pete Becker]

josh wrote:

Hi, is there the possibility to create anonymous class (not object) in
C++ like do Java?

No, C++ does not support this code obfuscation tool.

--

-- Pete
Roundhouse Consulting, Ltd. (www.versatilecoding.com)
Author of "The Standard C++ Library Extensions: a Tutorial and
Reference." (www.petebecker.com/tr1book)