• Georg Wrede <georg.wrede iki.fi> Mar 09 2009
• Lars Kyllingstad <public kyllingen.NOSPAMnet> Mar 09 2009
• bearophile <bearophileHUGS lycos.com> Mar 09 2009
• Georg Wrede <georg.wrede iki.fi> Mar 09 2009
• Christopher Wright <dhasenan gmail.com> Mar 09 2009
• Georg Wrede <georg.wrede iki.fi> Mar 09 2009

Georg Wrede <georg.wrede iki.fi> writes:

When creating templates, it is sometimes handy to print the type of 
something. Is there a trivial way to print it?

     writeln("Typeof T is: ", typeof(t));

This doesn't work, but you get the idea.

Lars Kyllingstad <public kyllingen.NOSPAMnet> writes:

Georg Wrede wrote:
 When creating templates, it is sometimes handy to print the type of 
 something. Is there a trivial way to print it?
 
     writeln("Typeof T is: ", typeof(t));
 
 This doesn't work, but you get the idea.


typeof(t).stringof


-Lars

bearophile <bearophileHUGS lycos.com> writes:

Georg Wrede:
 When creating templates, it is sometimes handy to print the type of 
 something. Is there a trivial way to print it?


writeln("Typeof T is: ", typeid(typeof(t)));

(Try alternatives of that with a dynamic type, like a class).

Bye,
bearophile

Georg Wrede <georg.wrede iki.fi> writes:

bearophile wrote:
 Georg Wrede:
 When creating templates, it is sometimes handy to print the type of 
 something. Is there a trivial way to print it?


 writeln("Typeof T is: ", typeid(typeof(t)));
 
 (Try alternatives of that with a dynamic type, like a class).


Thanks!!!


     class A { }
     class B : A { }
     class C : B { }
     A a;
     B b;
     C c;
     A ac = new C;

Typeof ac is: A

So it's the variable, not its current contents. Kinda makes sense.

Christopher Wright <dhasenan gmail.com> writes:

Georg Wrede wrote:
 When creating templates, it is sometimes handy to print the type of 
 something. Is there a trivial way to print it?
 
     writeln("Typeof T is: ", typeof(t));
 
 This doesn't work, but you get the idea.


For a class or interface:
writeln("Typeof T is: ", t.classinfo.name);

Georg Wrede <georg.wrede iki.fi> writes:

Christopher Wright wrote:
 Georg Wrede wrote:
 When creating templates, it is sometimes handy to print the type of 
 something. Is there a trivial way to print it?

     writeln("Typeof T is: ", typeof(t));

 This doesn't work, but you get the idea.


 For a class or interface:
 writeln("Typeof T is: ", t.classinfo.name);



     A a;
     B b;
     C c;
     A ac = new C;

     writeln("Typeof T is: ", ac.classinfo.name);

and the result is:

Typeof T is: C

so it really works!!!

Thaks, guys!!