[SYCL] workaround for memaccess warning from older hostcompiler (#18435)

cperkinsintel · web-flow · commit b8b385ea5e1b · 2025-05-13T07:06:48.000+02:00
Older gcc when used as host compiler may trigger memaccess warning. This
simple cast avoids that warning.

Signed-off-by: Chris Perkins &lt;chris.perkins@intel.com&gt;
diff --git a/sycl/include/sycl/detail/memcpy.hpp b/sycl/include/sycl/detail/memcpy.hpp
@@ -24,7 +24,7 @@ inline void memcpy_no_adl(T1 *Dst, const T2 *Src, size_t Size) {
 #ifdef __SYCL_DEVICE_ONLY__
   __builtin_memcpy(Dst, Src, Size);
 #else
-  std::memcpy(Dst, Src, Size);
+  std::memcpy(static_cast<void *>(Dst), static_cast<const void *>(Src), Size);
 #endif
 }
 } // namespace detail

Original file line number	Diff line number	Diff line change
`@@ -24,7 +24,7 @@ inline void memcpy_no_adl(T1 Dst, const T2 Src, size_t Size) {`
`24`	`24`	`#ifdef __SYCL_DEVICE_ONLY__`
`25`	`25`	`__builtin_memcpy(Dst, Src, Size);`
`26`	`26`	`#else`
`27`		`- std::memcpy(Dst, Src, Size);`
	`27`	`+ std::memcpy(static_cast<void >(Dst), static_cast<const void >(Src), Size);`
`28`	`28`	`#endif`
`29`	`29`	`}`
`30`	`30`	`} // namespace detail`