OpenCL user defined inline functions

Question

Is it possible to define my own functions in OpenCL code, in order that the kernels could call them? It yes, where can I see some simple example?

Answer 1

Based on the code samples here you can just write functions like:

inline int add(int a,int b)
{
   return a+b;
}

(Eg. look at the .cl file in the DXTC or bitonic sort examples.)

I don't know if that's an nvidia only extension but the OpenCL documentation talks about "auxiliary functions" as well as kernels.