Kernel error in headerexample.cpp

[nazsombor]

Hello, I'm trying to run the executable of headerexample.cpp compiled with g++ -o headerexample headerexample.cpp -lOpenCL. It prints the following error:

1 error generated.
<kernel>:10:97: error: pointer arguments to kernel functions must reside in '__global', '__constant' or '__local' address space
                              global int *output, int val, write_only pipe int outPipe, queue_t childQueue)
                                                                                                ^

First I understood it as if queue_t was a pointer type so I added global keyword in front of it, but then I got another error saying that I don't need the global keyword.

2 errors generated.
<kernel>:10:104: error: parameter may not be qualified with an address space
                              global int *output, int val, write_only pipe int outPipe, global queue_t childQueue)
                                                                                                       ^
<kernel>:10:104: error: pointer arguments to kernel functions must reside in '__global', '__constant' or '__local' address space

Thank you for your help.