Search in
Sort by:

Question Status:

Search help

  • Simple searches use one or more words. Separate the words with spaces (cat dog) to search cat,dog or both. Separate the words with plus signs (cat +dog) to search for items that may contain cat but must contain dog.
  • You can further refine your search on the search results page, where you can search by keywords, author, topic. These can be combined with each other. Examples
    • cat dog --matches anything with cat,dog or both
    • cat +dog --searches for cat +dog where dog is a mandatory term
    • cat -dog -- searches for cat excluding any result containing dog
    • [cats] —will restrict your search to results with topic named "cats"
    • [cats] [dogs] —will restrict your search to results with both topics, "cats", and "dogs"

[generated.h] Forward declaring Struct instead of Class FBox2D

Hello. I'm having an interesting trouble using FBox2D.

When I build my c++ project with FBox2D, the generated header forward declares "struct FBox2D" instead of class, and then the compiler outputs error C4099 (meaning the forward declaration is wrong). I have to change it myself in the generated.h to make it work, do you know what might be causing this? Thank you.

Product Version: UE 4.9
more ▼

asked Nov 09 '15 at 10:29 AM in C++ Programming

avatar image

20 1 3 8

(comments are locked)
10|2000 characters needed characters left
Viewable by all users

1 answer: sort voted first


This was a bug which was fixed and should be available in the 4.10 release. In the meantime you can fix it in your own code by simply changing the definition of FBox2D in Engine/Source/Runtime/Core/Public/Math/Box2D.h from class to struct.

Hope this helps,


more ▼

answered Nov 10 '15 at 12:16 PM

avatar image

Steve Robb STAFF
2.8k 58 28 101

(comments are locked)
10|2000 characters needed characters left
Viewable by all users
Your answer
toggle preview:

Up to 5 attachments (including images) can be used with a maximum of 5.2 MB each and 5.2 MB total.

Follow this question

Once you sign in you will be able to subscribe for any updates here

Answers to this question