Understand zero copy accounts in Solana

Solana is a popular blockchain platform that admits zero cost accounts, also known as #[zero copy)] or #[zero copy (insecure))]. In this article,

#[Copy (zero copy)] (Sure)

The most common variant of the zero copy account is #[account (zero copy)]. This guy ensures that any change. The #[Copy (insecure)) variant is similar but uses an insecure approach.

#[account (zero copy (insecure))

The less common variant of the zero copy account is#[zero copy (insecure))]. This type allows changes without any security verification, however, this variant should only be used with caution and in specific scenarios.

Differences

The main difference between these two variants lies in their behavior:

• #[Zero Copy)](SAFE): Any change made within the account is reflected in all chains by using a safe and immutable block.

• #[Count (zero copy (insecure))] : The changes are allowed within the account without any security verification. This variant should only be used with caution and in specific scenarios.

When using each

Use#[zero copy)]When:

*

*

*

Use#[account (zero copy (insecure))]When:

• Your data does not need to be securely rewarded in all chains (for example, if

.

** Sing to write an insecure code in oxide?

Yes, it is possible to write an insecure code directly in Rust. However, using zero copy accounts is generally safer than writing without processing. In addition, you can use Libana-Program and Anchor to work with zero copy accounts safely.

Conclusion

The differences between the differences between the zero copy accounts. Wear

Example code

Here is an example of how to use a zero cost account in Rust:

`oxide

Use Solana_program :: {

ACCOUNT_INFO :: {Next_account_info, Accountinfo},

Entrypoint :: Programult,

Program_eror :: printerror,

};

use anchor_lag :: {account_info, entrypoint};

// Define and work to deposit money on the account

Fn deposit (account_id: & accouinfo <'_>, quantity: u64) -> programresult {

// Obtain the current account balance

Let mut balance = next_account_info (account_)?;

// deposit the specified amount

balance.amount += quantity;

// Save the balance updated to the account

Nextacountinfo :: Set (account_, and balance)?;

Printeror! (“Successful deposit”);

OK (())

}

// Define and zero cost account

#[Zero Copy (insecure))]

Zerocopyacount structure {

Deposit: U64,

}

Anchor impirogram for zerocopyacount {

Type Systemprograminfo = Accountinfo <'_>;

Type programid = programid;

Write programmer = imprinteror;

Fn new () -> self :: programid {

// create a new program identification

0x1234567890ABCDEF

}

Fn call (& self, quantity: u64) -> programresult {

Deposit (self.