pinocchio-system 0.6.0

Pinocchio helpers to invoke System program instructions
Documentation 
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mod advance_nonce_account;
mod allocate;
mod allocate_with_seed;
mod assign;
mod assign_with_seed;
mod authorize_nonce_account;
mod create_account;
mod create_account_allow_prefund;
mod create_account_with_seed;
mod initialize_nonce_account;
mod transfer;
mod transfer_with_seed;
mod upgrade_nonce_account;
mod withdraw_nonce_account;

use core::mem::MaybeUninit;
pub use {
    advance_nonce_account::*, allocate::*, allocate_with_seed::*, assign::*, assign_with_seed::*,
    authorize_nonce_account::*, create_account::*, create_account_allow_prefund::*,
    create_account_with_seed::*, initialize_nonce_account::*, transfer::*, transfer_with_seed::*,
    upgrade_nonce_account::*, withdraw_nonce_account::*,
};

const UNINIT_BYTE: MaybeUninit<u8> = MaybeUninit::<u8>::uninit();

#[inline(always)]
fn write_bytes(destination: &mut [MaybeUninit<u8>], source: &[u8]) {
    let len = destination.len().min(source.len());
    // SAFETY:
    // - Both pointers have alignment 1.
    // - For valid (non-UB) references, the borrow checker guarantees no overlap.
    // - `len` is bounded by both slice lengths.
    unsafe {
        core::ptr::copy_nonoverlapping(source.as_ptr(), destination.as_mut_ptr() as *mut u8, len);
    }
}