[未翻訳] Raw Pointers

References can be converted into a more primitive type called a raw pointer. Much like a number, it can be copied and moved around with little restriction. Rust makes no assurances of the validity of the memory location it points to.

Two kinds of raw pointers exist:

• *const T - A raw pointer to data of type T that should never change.
• *mut T - A raw pointer to data of type T that can change.

Raw pointers can be converted to and from numbers (e.g. usize).

Raw pointers can access data with unsafe code (more on this later).

Memory Details:

• A reference in Rust is very similar to a pointer in C in terms of usage, but with much more compile time restrictions on how it can be stored and moved around to other functions.
• A raw pointer in Rust is similar to a pointer in C that it represents a number that can be copied or passed around, and even turned into numerical types where it can be modified as a number to do pointer math.