zig-std 0.1.1

Bindings to Zig `std`, with optional Rust `std` features
Documentation 
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use crate::util::ReprCSlice;
use core::ptr::NonNull;

#[non_exhaustive]
#[repr(u8)]
pub enum Alignment {
	A1 = 0,
	A2 = 1,
	A4 = 2,
	A8 = 3,
	A16 = 4,
	A32 = 5,
	A64 = 6
}

#[repr(C)]
pub struct Allocator {
	ptr: NonNull<()>,
	vtable: VTable
}

#[repr(C)]
pub struct VTable {
	vtable_zig: NonNull<()>,

	alloc_c: extern "C" fn(
		vtable_zig: NonNull<()>,
		allocator: NonNull<()>,
		len: usize,
		alignment: Alignment,
		ret_addr: usize
	) -> ReprCSlice<u8>,
	resize_c: extern "C" fn(
		vtable_zig: NonNull<()>,
		allocator: NonNull<()>,
		memory: ReprCSlice<u8>,
		alignment: Alignment,
		new_len: usize,
		ret_addr: usize
	) -> bool,
	remap_c: extern "C" fn(
		vtable_zig: NonNull<()>,
		allocator: NonNull<()>,
		memory: ReprCSlice<u8>,
		alignment: Alignment,
		new_len: usize,
		ret_addr: usize
	) -> ReprCSlice<u8>,
	free_c: extern "C" fn(
		vtable_zig: NonNull<()>,
		allocator: NonNull<()>,
		memory: ReprCSlice<u8>,
		alignment: Alignment,
		ret_addr: usize
	)
}

// size/align assertions
const _: () = {
	assert!(size_of::<Alignment>() == 1);
	assert!(align_of::<Alignment>() == 1);
	assert!(size_of::<Allocator>() == 6 * size_of::<usize>());
	assert!(align_of::<Allocator>() == align_of::<usize>());
	assert!(size_of::<VTable>() == 5 * size_of::<usize>());
	assert!(align_of::<VTable>() == align_of::<usize>());
};