20 lines
706 B
Rust
20 lines
706 B
Rust
//! Example Rust-based BPF program that moves a lamport from one account to another
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extern crate solana_program;
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use solana_program::{account_info::AccountInfo, entrypoint::ProgramResult, pubkey::Pubkey};
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solana_program::entrypoint!(process_instruction);
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#[allow(clippy::unnecessary_wraps)]
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fn process_instruction(
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_program_id: &Pubkey,
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accounts: &[AccountInfo],
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_instruction_data: &[u8],
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) -> ProgramResult {
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// account 0 is the mint and not owned by this program, any debit of its lamports
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// should result in a failed program execution. Test to ensure that this debit
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// is seen by the runtime and fails as expected
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**accounts[0].lamports.borrow_mut() -= 1;
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Ok(())
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}
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