where is ap_uint or ap_int c++ type defined

Hello,

To follow up my own question posted several days ago, I am trying to create a HLS design upon

Cyclone V soc (with dual arm cortex A9), it's clear that I can develop HLS IP components to optimize

system bottleneck, I would also like the entire design to be run on this soc so ability to communicate

between processor core(s) to HLS IP(s) is critical, would you anyone please guide me how to and/or

point me the appropriate online design documents? much appreciate

-liyen-