| #pragma once | |
| #include <sycl/sycl.hpp> | |
| // Upstream libsycl does not yet provide the SYCL_EXTERNAL convenience macro, | |
| // but its compiler supports the underlying attribute. | |
| #ifndef SYCL_EXTERNAL | |
| # if __has_cpp_attribute(clang::sycl_external) | |
| # define SYCL_EXTERNAL [[clang::sycl_external]] | |
| # else | |
| # error "The SYCL implementation does not support external device functions" | |
| # endif | |
| #endif | |
| SYCL_EXTERNAL int device_value(int value); | |
| SYCL_EXTERNAL int device_offset(); | |
| int launch_kernel(); |