Block (data storage)

C++ In C++, a block can be read using std::ifstream (input file stream). import std; using std::array; using std::byte; using std::ifstream; using std::ios; constexpr size_t BLOCK_SIZE = 4096; try { ifstream file("example.bin", ios::binary); file.exceptions(ios::failbit | ios::badbit); array buf; file.read(reinterpret_cast(buf.data()), BLOCK_SIZE); } catch (const ios::failure& e) { std::println(stderr, "I/O error: {}", e.what()); } C# In C#, a block can be read with the class. using System.IO; static const int BLOCK_SIZE = 4096; using (FileStream stream = File.Open("example.bin", FileMode.Open)) { byte[] block = new byte[BLOCK_SIZE]; await stream.ReadAsync(block, 0, BLOCK_SIZE); } Java In Java, a block can be read using java.io.FileInputStream. import java.io.FileInputStream; import java.io.IOException; static final int BLOCK_SIZE = 4096; try (FileInputStream file = new FileInputStream("example.bin")) { byte[] buf = new byte[BLOCK_SIZE]; file.read(buf); } catch (IOException e) { e.printStackTrace(); } Python In Python, a block can be read with the method of whatever is implementing io.IOBase. BLOCK_SIZE: int = 4096 with open("example.bin", "rb") as file: # file is of type io.BufferedReader block: bytes = file.read(BLOCK_SIZE) Rust In Rust, a block can be read with the method of std::fs::File. use std::fs::File; const BLOCK_SIZE: usize = 4096; if let Ok(mut file) = File::open("example.bin") { let mut buf = [0u8; BLOCK_SIZE]; file.read_exact(&mut buf); } == References ==