Trait uleb128::ReadULeb128Ext [−][src]
pub trait ReadULeb128Ext: Read { fn read_uleb128_u32(&mut self) -> Result<u32> { ... } fn read_uleb128_u64(&mut self) -> Result<u64> { ... } }
Expand description
Extends Read with methods for reading numbers encoded in
[unsigned LEB128*]
Examples
Read unsigned LEB128 integers from a reader:
use std::io::Cursor; use uleb128::ReadULeb128Ext; let mut rdr = Cursor::new(vec![ 0b0111_1111, // 127 0b1000_0000, 0b0000_0001, // 128 0b1000_0001, 0b0000_0001 // 129 ]); assert_eq!(127, rdr.read_uleb128_u32().unwrap()); assert_eq!(128, rdr.read_uleb128_u32().unwrap()); assert_eq!(129, rdr.read_uleb128_u32().unwrap());
Provided methods
fn read_uleb128_u32(&mut self) -> Result<u32>[src]
fn read_uleb128_u32(&mut self) -> Result<u32>[src]Read an unsigned 32-bit integer that’s encoded in unsigned LEB128 from the underlying reader.
Errors
If this function encounters an error when performing an I/O operation,
then this function immediately returns an Error::Io to propagate the
io::Error returned by an internal call to Read::read_exact.
If this function encounters an encoded number with a length in bytes
greater than what is permitted, an Error::LengthOverflow is
immediately returned.
Examples
Read an unsigned LEB128-encoded, 32-bit integer:
use std::io::Cursor; use uleb128::ReadULeb128Ext; let mut rdr = Cursor::new(vec![ // 2_147_483_647 0b1111_1111, 0b1111_1111, 0b1111_1111, 0b1111_1111, 0b0000_0111 ]); assert_eq!(2_147_483_647, rdr.read_uleb128_u32().unwrap());
fn read_uleb128_u64(&mut self) -> Result<u64>[src]
fn read_uleb128_u64(&mut self) -> Result<u64>[src]Read an unsigned 64-bit integer that’s encoded in unsigned LEB128 from the underlying reader.
Errors
If this function encounters an error when performing an I/O operation,
then this function immediately returns an Error::Io to propagate the
io::Error returned by an internal call to Read::read_exact.
If this function encounters an encoded number with a length in bytes
greater than what is permitted, an Error::LengthOverflow is
immediately returned.
Examples
Read an unsigned LEB128-encoded, 64-bit integer:
use std::io::Cursor; use uleb128::ReadULeb128Ext; let mut rdr = Cursor::new(vec![ // 9_223_372_036_854_775_807 0b1111_1111, 0b1111_1111, 0b1111_1111, 0b1111_1111, 0b1111_1111, 0b1111_1111, 0b1111_1111, 0b1111_1111, 0b0111_1111 ]); assert_eq!(9_223_372_036_854_775_807, rdr.read_uleb128_u64().unwrap());