Function wmemchr

pub unsafe fn wmemchr(
    p: impl CastInto<MutPtr<wchar_t>>,
    c: wchar_t,
    n: usize,
) -> MutPtr<wchar_t>

Calls C++ function: wchar_t* std::wmemchr(wchar_t* __p, wchar_t __c, std::size_t __n).