rustHow to add to pointer in Rust
In Rust, you can add to a pointer by using the offset
method. This method takes an integer argument and adds it to the pointer's address. For example, if you have a pointer ptr
pointing to an integer, you can add 5 to it by using ptr.offset(5)
. The output of this operation will be a pointer pointing to the integer 5 positions away from the original pointer. You can also use the offset
method to subtract from a pointer, by passing a negative integer as an argument. For example, ptr.offset(-5)
will return a pointer pointing to the integer 5 positions before the original pointer.
let ptr = &mut 5;
let new_ptr = ptr.offset(5);
In the example above, ptr
is a pointer pointing to the integer 5, and new_ptr
is a pointer pointing to the integer 10 (5 positions away from the original pointer).
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