Provides a const version of core::mem::zeroed().
Example usage:
rust
use const_zero::const_zero;
struct OpaqueStruct {
nothing: core::ffi::c_void,
};
static mut zeroed_opaque: OpaqueStruct = unsafe {const_zero!(OpaqueStruct)};
Ideally const_zero would be a generic function, but const generics need
more development first (const_fn_transmute, const_generics,
const_evaluatable_checked)
std::mem::zeroedconst_zero zeroes padding bits, while std::mem::zeroed doesn't
The simplified version is
rust
union TypeAsBytes<T> {
bytes: [u8; core::mem::size_of::<T>()],
inner: T,
};
which can be initalized with
rust
TypeAsBytes {bytes: [0; core::mem::size_of::<T>()]};
Feel free to use this trick in your code if you want to skip out on a dependency