That's how the MSVC intrinsics work. Turn on the option and memset/memcpy, among others, gets replaced automatically: https://learn.microsoft.com/en-us/cpp/pre

That's how the MSVC intrinsics work. Turn on the option and memset/memcpy, among others, gets replaced automatically: https://learn.microsoft.com/en-us/cpp/preprocessor/intrinsic?view=msvc-170 https://learn.microsoft.com/en-us/cpp/preprocessor/intrinsic...