Trait uleb128::WriteULeb128Ext

pub trait WriteULeb128Ext: Write {
    fn write_uleb128_u32(&mut self, value: u32) -> Result { ... }
    fn write_uleb128_u64(&mut self, value: u64) -> Result { ... }
}

Extends Write with methods for writing unsigned integers to the underlying writer encoded in unsigned LEB128.

Examples

Write unsigned integers to a writer encoded in LEB128:

use uleb128::WriteULeb128Ext;

let mut wtr = vec![];
wtr.write_uleb128_u32(127).unwrap();
wtr.write_uleb128_u32(128).unwrap();
wtr.write_uleb128_u32(129).unwrap();

assert_eq!(wtr, vec![
    0b0111_1111, // 127
    0b1000_0000, 0b0000_0001, // 128
    0b1000_0001, 0b0000_0001, // 129
]);

Provided methods

fn write_uleb128_u32(&mut self, value: u32) -> Result

Write an unsigned 32-bit integer to the underlying writer encoded in unsigned LEB128.

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 Write::write_all.

Examples

Write an unsigned 32-bit integer to a writer encoded in LEB128:

use uleb128::WriteULeb128Ext;

let mut wtr = vec![];
wtr.write_uleb128_u32(2_147_483_647).unwrap();

assert_eq!(wtr, vec![
    // 2_147_483_647
    0b1111_1111, 0b1111_1111, 0b1111_1111, 0b1111_1111, 0b0000_0111
]);

fn write_uleb128_u64(&mut self, value: u64) -> Result

Write an unsigned 64-bit integer to the underlying writer encoded in unsigned LEB128.

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 Write::write_all.

Examples

Write an unsigned 64-bit integer to a writer encoded in LEB128:

use uleb128::WriteULeb128Ext;

let mut wtr = vec![];
wtr.write_uleb128_u64(9_223_372_036_854_775_807).unwrap();

assert_eq!(wtr, 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
]);

Implementors

impl<W: Write + ?Sized> WriteULeb128Ext for W