Thanks,
Scott
------------------------------------------------------------
Website
"If you try and don''t succeed, destroy all evidence that you tried."
------------------------------------------------------------
if it's possible, how can i have a list that holds dif...
Author
hi,
using C++, how can i have a list that holds different kinds of data?
for example:
class Cclass1
{
...
}
class Cclass2
{
...
}
...
vector list;
...
now list could either be from Cclass1, or Cclass2. does that make sense? if not, please hold you laughter
Thanks,
Scott
------------------------------------------------------------
Email
Website
"If you try and don''t succeed, destroy all evidence that you tried."
------------------------------------------------------------
Thanks,
Scott
------------------------------------------------------------
Website
"If you try and don''t succeed, destroy all evidence that you tried."
------------------------------------------------------------
use a union. I've never done it before, but I think you do something like this:
The type of u will change when you make it equal to an object of a different type.
Proceeding on a brutal rampage is the obvious choice.
[edited by - amish1234 on February 8, 2003 2:50:34 PM]
class class1{};class class2{};union myUnion{ class1, class2};myUnion u;class1 obj1;class2 obj2;u = obj1;u = obj2; The type of u will change when you make it equal to an object of a different type.
Proceeding on a brutal rampage is the obvious choice.
[edited by - amish1234 on February 8, 2003 2:50:34 PM]
Derive your classes from your baseclass and store pointer to the objects. You''ll have to cast them back when using them (I think).
[My Lousy Page | Kings Of Chaos | Vampires | email.me]
[My Lousy Page | Kings Of Chaos | Vampires | email.me]
First of all, you can''t use unions if your classes have any constructors - ie, the classes have to be POD.
If the two types are not related already, then you can use boost::any (www.boost.org, I''m too lazy to write a href)...
However, you will have to know what each type inserted is. (in order to get the actual instance as a Cclass1 or Cclass2).
If they are related, then hold a boost::shared_ptr of the base class type.
-----------------------------
Gamedev for learning.
libGDN for putting it all together.
If the two types are not related already, then you can use boost::any (www.boost.org, I''m too lazy to write a href)...
However, you will have to know what each type inserted is. (in order to get the actual instance as a Cclass1 or Cclass2).
If they are related, then hold a boost::shared_ptr of the base class type.
-----------------------------
Gamedev for learning.
libGDN for putting it all together.
This topic is closed to new replies.
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