namespace std
{
enum class byte : unsigned char
{};
}

enum class byte : unsigned char
{};

int foo(byte *b, int *i)
{
*i = 42;
*b = (byte) 43;
return *i;
}

int foo(std::byte *b, int *i)
{
*i = 42;
*b = (std::byte) 43;
return…