2021-10-19 14:48:15 -07:00
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//! Example Rust-based BPF program that moves a lamport from one account to another
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2019-07-08 16:52:25 -07:00
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2020-10-23 17:22:10 -07:00
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extern crate solana_program;
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2022-02-21 19:59:06 -08:00
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use solana_program::{account_info::AccountInfo, entrypoint::ProgramResult, pubkey::Pubkey};
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2019-07-08 16:52:25 -07:00
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2022-02-21 19:59:06 -08:00
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solana_program::entrypoint!(process_instruction);
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2020-12-13 17:26:34 -08:00
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#[allow(clippy::unnecessary_wraps)]
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2020-01-24 13:41:14 -08:00
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fn process_instruction(
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_program_id: &Pubkey,
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2020-01-27 18:27:44 -08:00
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accounts: &[AccountInfo],
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2020-01-24 13:41:14 -08:00
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_instruction_data: &[u8],
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2020-02-04 12:25:42 -08:00
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) -> ProgramResult {
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2019-07-08 16:52:25 -07:00
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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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2020-01-29 21:15:04 -08:00
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**accounts[0].lamports.borrow_mut() -= 1;
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2019-09-06 17:32:14 -07:00
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2020-01-30 09:47:22 -08:00
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Ok(())
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2019-07-08 16:52:25 -07:00
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}
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