[−][src]Crate vartyint
Read & Write varint to/from bytes
Writing bytes
use vartyint; let mut my_bytes = Vec::new(); vartyint::write_i32(1000, &mut my_bytes); assert_eq!(my_bytes, &[0xd0, 0x0f]);
Reading
Read an integer from a slice of bytes (&[u8]
). Upon success, the number, as well as the rest
of the bytes is returned. You can "pop off" numbers like this.
use vartyint; let my_bytes = vec![0x18, 0x01, 0xBF, 0xBB, 0x01]; let (num1, my_bytes) = vartyint::read_i32(&my_bytes).unwrap(); assert_eq!(num1, 12); assert_eq!(my_bytes, &[0x01, 0xBF, 0xBB, 0x01]); let (num2, my_bytes) = vartyint::read_i32(&my_bytes).unwrap(); assert_eq!(num2, -1); assert_eq!(my_bytes, &[0xBF, 0xBB, 0x01]); let (num3, my_bytes) = vartyint::read_i32(&my_bytes).unwrap(); assert_eq!(num3, -12_000); assert_eq!(my_bytes, &[]); // Can't read any more assert_eq!(vartyint::read_i32(&my_bytes), Err(vartyint::VartyIntError::EmptyBuffer));
Enums
VartyIntError | Error type |
VartyIntReadError |
Functions
read_i8 | Read an integer from this buffer |
read_i16 | Read an integer from this buffer |
read_i32 | Read an integer from this buffer |
read_i64 | Read an integer from this buffer |
read_i128 | Read an integer from this buffer |
read_isize | Read an integer from this buffer |
read_u8 | Read an integer from this buffer |
read_u16 | Read an integer from this buffer |
read_u32 | Read an integer from this buffer |
read_u64 | Read an integer from this buffer |
read_u128 | Read an integer from this buffer |
read_usize | Read an integer from this buffer |
write_i8 | Write an integer to this buffer |
write_i16 | Write an integer to this buffer |
write_i32 | Write an integer to this buffer |
write_i64 | Write an integer to this buffer |
write_i128 | Write an integer to this buffer |
write_isize | Write an integer to this buffer |
write_u8 | Write an integer to this buffer |
write_u16 | Write an integer to this buffer |
write_u32 | Write an integer to this buffer |
write_u64 | Write an integer to this buffer |
write_u128 | Write an integer to this buffer |
write_usize | Write an integer to this buffer |