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solana/programs/bpf/rust/dep_crate/src/lib.rs

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//! @brief Example Rust-based BPF program tests dependent crates
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extern crate solana_program_sdk;
use byteorder::{ByteOrder, LittleEndian};
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use solana_program_sdk::entrypoint::SUCCESS;
#[no_mangle]
pub extern "C" fn entrypoint(_input: *mut u8) -> u64 {
let mut buf = [0; 4];
LittleEndian::write_u32(&mut buf, 1_000_000);
assert_eq!(1_000_000, LittleEndian::read_u32(&buf));
let mut buf = [0; 2];
LittleEndian::write_i16(&mut buf, -5_000);
assert_eq!(-5_000, LittleEndian::read_i16(&buf));
SUCCESS
}
#[cfg(test)]
mod test {
use super::*;
#[test]
fn test_entrypoint() {
assert_eq!(SUCCESS, entrypoint(std::ptr::null_mut()));
}
}