# Primitive Wrapper

Primitive Wrapper is a small derive macro for generating operation trait implementations for primitive
wrapper structs, making the inner value transparent:

```rust
#[derive(Primitive)]
struct Int(u64);

fn main() {
    let input = Int(0xFF0000);
    let mask = Int(0xFF);
    let result = input >> 16 & mask;
    assert_eq!(result, 0xFF);
}
```

The implemented traits are:
- Arithmetic: `Add`, `Sub`, `Mul`, `Div`, `Rem`, `Neg`
- Bitwise: `Not`, `BitAnd`, `BitOr`, `BitXor`, `Shl`, `Shr`
- Passthrough Formatting: `Debug`, `Display`, `Binary`, `LowerExp`, `LowerHex`, `Octal`, `UpperExp`, `UpperHex`
- Comparison: `PartialEq`/`PartialOrd` with the inner type
- Accumulation: `Sum` and `Product`

By default, all of the above traits are implemented. These groups can also be selected individually:

```rust
#[derive(Primitive)]
#[primwrap(arithmetic, bitwise, formatting, comparison, accumulation)]
struct Int(u64);
```

## Prior Art

This crate provides similar functionality to the [newtype_derive](https://crates.io/crates/newtype_derive)
crate, but the derived traits are specified individually. It is more generalized for all new-type patterns,
whereas this crate is designed only for new-types wrapping integers, floats, and `bool`. Use newtype_derive if you
need more fine-grained control over the traits implemented.