Hahnfeld added inline comments.
================
Comment at: lib/Headers/__clang_cuda_device_functions.h:1477
#endif // CUDA_VERSION >= 9020
+#if __cplusplus >= 201703L
+__DEVICE__ int abs(int __a) noexcept { return __nv_abs(__a); }
----------------
If I recall correctly, `__cplusplus` is not defined in C mode, so both GCC and
Clang will issue a warning with `-Wundef`.
Maybe this can be solved with something similar to:
```lang=c
#ifdef __cplusplus
#define cpp_version __cplusplus
#else
#define cpp_version 0
#endif
```
(to avoid repetition of `#if defined(__cplusplus) && __cplusplus >= 201703L`)
Repository:
rC Clang
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D61949/new/
https://reviews.llvm.org/D61949
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