• Chris Pons (7/7) Mar 05 2012 Is it possible to check the type of an object to a class name?
• Pedro Lacerda (4/11) Mar 05 2012 This works:
• Jonathan M Davis (21/30) Mar 05 2012 If you want to check whether a particular object is of a particular type...

"Chris Pons" <cmpons gmail.com> writes:

Is it possible to check the type of an object to a class name?

//Something like this:
Class test
{
//...
}

assert(is(anonObject == typeof(test))

Pedro Lacerda <pslacerda gmail.com> writes:

This works:

assert(typeid(anonObject) == typeid(test));

Pedro Lacerda



2012/3/5 Chris Pons <cmpons gmail.com>

 Is it possible to check the type of an object to a class name?

 //Something like this:
 Class test
 {
 //...
 }

 assert(is(anonObject == typeof(test))

"Jonathan M Davis" <jmdavisProg gmx.com> writes:

On Tuesday, March 06, 2012 01:37:05 Chris Pons wrote:
 Is it possible to check the type of an object to a class name?
 
 //Something like this:
 Class test
 {
 //...
 }
 
 assert(is(anonObject == typeof(test))

If you want to check whether a particular object is of a particular type at 
runtime, then cast and check whether it's null. If you want to know the 
_exact_ type of an object, then use typeid.

class A
{}

class B : A
{}

class C : B
{}

void main()
{
 A obj = new C;
 assert(cast(A)obj);
 assert(cast(B)obj);
 assert(cast(C)obj);
 assert(typeid(obj) != typeid(A));
 assert(typeid(obj) != typeid(B));
 assert(typeid(obj) == typeid(C));
}

- Jonathan M Davis