What is the usage of reinterpret_cast in C++?

In C++, reinterpret_cast is a type conversion operator used to convert a pointer or reference to a different type of pointer or reference without any checking or adjustment. This type of conversion is generally considered unsafe as it can cause undefined behavior or errors. Using reinterpret_cast, you can convert pointer types to a different type, or a pointer to an integer type, or an integer to a pointer type. When using reinterpret_cast, it is essential to ensure that the conversion is legal and safe, otherwise it may lead to errors or crashes in the program.