Function solana_exchange_program::solana_exchange_program

#[no_mangle]pub extern "C" fn solana_exchange_program(
    program_id: &Pubkey, 
    keyed_accounts: &[KeyedAccount<'_>], 
    instruction_data: &[u8], 
    invoke_context: &mut dyn InvokeContext
) -> Result<(), InstructionError>