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/*!
Doctests not part of the documentation are used instead of “normal” tests
because they support expecting a compilation error with `compile_fail`.
## Good
```
use bytes_cast::*;
#[derive(BytesCast)]
#[repr(C)]
struct Example {}
#[derive(BytesCast)]
#[repr(C)]
struct Example2(
u8,
unaligned::U32Be,
);
```
## Bad
```compile_fail
use bytes_cast::*;
#[derive(BytesCast)]
#[repr(C)]
enum NotAStruct {
A,
B,
}
```
```compile_fail
use bytes_cast::*;
#[derive(BytesCast)]
struct NoReprAttribute {}
```
```compile_fail
use bytes_cast::*;
#[derive(BytesCast)]
#[repr(C)]
struct Generic<T>(T);
```
```compile_fail
use bytes_cast::*;
#[derive(BytesCast)]
#[repr(C)]
struct FieldIsNotBytesCast(
u8,
u32,
);
```
```compile_fail
use bytes_cast::*;
#[derive(BytesCast)]
#[repr(C)]
#[repr(align(2))]
struct HasAlignmentRequirement {}
```
*/