Trait dactyl::traits::BytesToUnsigned

pub trait BytesToUnsigned: Sized {
    // Required method
    fn btou(src: &[u8]) -> Option<Self>;
}

Bytes to Unsigned.

This trait exposes the method btou which converts (UTF-8) byte slices to proper, unsigned integers. It works just like str::parse and u*::from_str_radix, but faster, particularly for u64 and u128.

Leading zeroes are fine, but the method will return None if the slice is empty, contains non-numeric characters (including + and -), or is too large for the type.

Only little endian architectures are optimized; for big endian machines, this trait just passes through the results of str::parse.

For signed integer parsing, see BytesToSigned;

Examples

use dactyl::traits::BytesToUnsigned;

assert_eq!(
    u8::btou(b"255"),
    Some(u8::MAX),
);

Required Methods

fn btou(src: &[u8]) -> Option<Self>

Bytes to Unsigned.

Object Safety

This trait is not object safe.

Implementations on Foreign Types

impl BytesToUnsigned for u8

fn btou(src: &[u8]) -> Option<Self>

Bytes to Unsigned.

impl BytesToUnsigned for u16

fn btou(src: &[u8]) -> Option<Self>

Bytes to Unsigned.

impl BytesToUnsigned for u32

fn btou(src: &[u8]) -> Option<Self>

Bytes to Unsigned.

impl BytesToUnsigned for u64

fn btou(src: &[u8]) -> Option<Self>

Bytes to Unsigned.

impl BytesToUnsigned for u128

fn btou(src: &[u8]) -> Option<Self>

Bytes to Unsigned.

impl BytesToUnsigned for usize

fn btou(src: &[u8]) -> Option<Self>

Bytes to Unsigned.

impl BytesToUnsigned for NonZeroU8

fn btou(src: &[u8]) -> Option<Self>

Bytes to Unsigned.

impl BytesToUnsigned for NonZeroU16

fn btou(src: &[u8]) -> Option<Self>

Bytes to Unsigned.

impl BytesToUnsigned for NonZeroU32

fn btou(src: &[u8]) -> Option<Self>

Bytes to Unsigned.

impl BytesToUnsigned for NonZeroU64

fn btou(src: &[u8]) -> Option<Self>

Bytes to Unsigned.

impl BytesToUnsigned for NonZeroU128

fn btou(src: &[u8]) -> Option<Self>

Bytes to Unsigned.

impl BytesToUnsigned for NonZeroUsize

fn btou(src: &[u8]) -> Option<Self>

Bytes to Unsigned.

Implementors