is the c++ 20 char te same as the old one code example

Example 1: is the c++ 20 char te same as the old one

std::cout << std::is_same_v;

Example 2: is the c++ 20 char te same as the old one

reinterpret_cast(u8"text"); // Ok.
reinterpret_cast("text");   // Undefined behavior.