Polygon rotation and intersection

[Nekoshet]

Hi all,
I'm looking for a simple library with functions that will check if two given polygons (and circles) are intersecting, given their location and rotation. I've been looking for a few hours on the internet and haven't found one that suits me well (i really prefer one library to both rotate and check for intersection if someone knows of one).
If someone knows of such library that'll be of great help to me.
Thanks in advance!
(and please don't say - what's the problem, it's just x * cos * whatever cause i know of these options but i rather have a good function to work with)

[Mats]

SDL or SFML should suffice.

[Nekoshet]

Thanks for the reply, but SFML only does Box to Box checking and SDL is no better.
If there happens to be something else you guys think of i'll be happy to hear.
(and if there isn't thanks anyway)

[Mats]

I thought an axis aligned collision box could be done in them and would be sufficient? If you need something more accurate than that, why not use a game engine that supports such a function? Or you can use something like Irrlicht, which is complex, but might be the most simple option. :s

(or make your own library)

[Nekoshet]

Well, i don't want to learn a game engine, i'm just fooling around with some small game I make to improve my c++ understanding. I'm just learning it these days, and such a library like I requested could help me in the future too, in other areas. But thanks anyway.