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// SPDX-License-Identifier: Apache-2.0 OR MIT
use pin_init::*;
// Struct with size over 1GiB
#[derive(Debug)]
#[allow(dead_code)]
pub struct BigStruct {
buf: [u8; 1024 * 1024 * 1024],
a: u64,
b: u64,
c: u64,
d: u64,
managed_buf: ManagedBuf,
}
#[derive(Debug)]
pub struct ManagedBuf {
buf: [u8; 1024 * 1024],
}
impl ManagedBuf {
pub fn new() -> impl Init<Self> {
init!(ManagedBuf { buf <- init_zeroed() })
}
}
fn main() {
#[cfg(any(feature = "std", feature = "alloc"))]
{
// we want to initialize the struct in-place, otherwise we would get a stackoverflow
let buf: Box<BigStruct> = Box::init(init!(BigStruct {
buf <- init_zeroed(),
a: 7,
b: 186,
c: 7789,
d: 34,
managed_buf <- ManagedBuf::new(),
}))
.unwrap();
println!("{}", core::mem::size_of_val(&*buf));
}
}
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