Notes/notes-service/vendor/bitvec/doc/index/BitPos.md

Bit Position

This is a position counter of a real bit in an R memory element.

Like BitIdx, it is a counter in the ring 0 .. R::BITS. It marks a real bit in memory, and is the shift distance in the expression 1 << n. It can only be produced by applying BitOrder::at to an existing BitIdx produced by bitvec.

Type Parameters

• R: The register element that this position governs.

Validity

Values of this type are required to be in the range 0 .. R::BITS. Any value not less than R::BITS makes the program invalid, and will likely cause either a crash or incorrect memory access.

Construction

This type is publicly constructible, but is only correct to do so within an implementation of BitOrder::at. bitvec will only request its creation through that trait implementation, and has no sites that can publicly accept untrusted values.