Examples
Success (real size matches expected):
```rust
use pakrassertsize::*;
[repr(C, packed)]
[assert_size(16)]
struct A {
field1: u64,
field2: u64,
}
[assert_size(24)]
[repr(C, packed)]
struct B {
field1: u64,
field2: u64,
field3: u64,
}
```
Failure (real size is 24 bytes, expected is 32 bytes):
```rust
use pakrassertsize::*;
[assert_size(32)]
[repr(C, packed)]
struct C {
field1: u64,
field2: u64,
field3: u64,
}
```
Examples assert_size_fits
Success (real size fits in expected size):
```rust
use pakrassertsize::*;
// Exact match
[repr(C, packed)]
[assertsizefits(16)]
struct A {
field1: u64,
field2: u64,
}
// Fits in match
[assertsizefits(32)]
[repr(C, packed)]
struct B {
field1: u64,
field2: u64,
field3: u64,
}
```
Failure (real size is 24 bytes, exceeding maximum of 16 bytes):
```rust
use pakrassertsize::*;
[assertsizefits(16)]
[repr(C, packed)]
struct C {
field1: u64,
field2: u64,
field3: u64,
}
```