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Recursive definitions

General and Gameplay Programming Programming

Started by tj963 January 29, 2002 03:43 PM

1 comment, last by tj963 22 years, 2 months ago

tj963

234

Author

January 29, 2002 03:43 PM

Hi, I have a struct that I am using for a tree structure. The problem is that when I try to declare pointers for parent, child, next and previous, vc gives me an error about recursive definitions. How can I work around this? struct TreeNode { TreeNode* Next; ... } Thanks, tj963 Edited by - tj963 on January 29, 2002 4:43:53 PM

tj963

Oluseyi

2,123

January 29, 2002 03:50 PM

Make sure they''re pointers. The definition you posted above will compile just fine; changing TreeNode *Next to TreeNode Next will result in the recursive definition error.

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Thanks to Kylotan for the idea!

NewDeal

134

January 29, 2002 05:18 PM

Problem with the "Treenode Next" example is that an infinite amount of memory would need to be allocated on object creation. This is not the case when using a pointer.