[SYCL] Refactor cmath wrapper templates #19483
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* Include `<type_traits>`, this was working because `<cmath>` pulls it in but this is cleaner. * Use C++14 and C++17 `_v` and `_t` helpers. * Switch to variadic template for `__sycl_promote`, using C++17 fold expressions. With this patch the header now require C++17 support to compile. Which is fine since it's the minimum requirement for SYCL 2020, and this header is only compiled on the device side which is always handled by clang, so there shouldn't be any support issues.
aelovikov-intel
approved these changes
Jul 16, 2025
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Good shout, the |
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@intel/llvm-gatekeepers this is ready to merge |
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Follow up from: #18706
<type_traits>, this was working because<cmath>pulls it in but this is cleaner._vand_thelpers.__sycl_promote, using C++17 fold expressions. In theory only needed for 1 to 3 types, but this is an internal helper anyway so it doesn't seem worth restricting.typedeftousingWith this patch the header now require C++17 support to compile. Which is fine since it's the minimum requirement for SYCL 2020, and this header is only compiled on the device side which is always handled by clang, so there shouldn't be any support issues.