Trait byte_num::convert::FromAscii

pub trait FromAscii: Sized {
    fn bytes_to_int(s: &[u8]) -> Result<Self, ()>;

    fn atoi<S: AsRef<[u8]>>(s: S) -> Result<Self, ()> { ... }
}

This trait allows convertion from bytes to integers.

Required Methods

fn bytes_to_int(s: &[u8]) -> Result<Self, ()>

Performs the actual conversion from a byteslice to an unsigned integer.

Provided Methods

fn atoi<S: AsRef<[u8]>>(s: S) -> Result<Self, ()>

The function performing the conversion. It takes anything that can be transformed into a byte-slice.

Examples

extern crate byte_num;
use byte_num::convert::FromAscii;

fn main() {
    assert_eq!(u32::atoi("1928"), Ok(1928));
    assert_eq!(u32::atoi("12e3"), Err(()));
}

Safety

It should be noted that trying to convert a string that does not fit in the chosen integer type, wraps around. For example:

extern crate byte_num;
use byte_num::convert::FromAscii;

fn main () {
    let n = u8::atoi("257");
    assert_eq!(n, Ok(1));
}

Implementations on Foreign Types

impl FromAscii for u8

fn bytes_to_int(bytes: &[u8]) -> Result<Self, ()>

fn atoi<S: AsRef<[u8]>>(s: S) -> Result<Self, ()>

impl FromAscii for u16

fn bytes_to_int(bytes: &[u8]) -> Result<Self, ()>

fn atoi<S: AsRef<[u8]>>(s: S) -> Result<Self, ()>

impl FromAscii for u32

fn bytes_to_int(bytes: &[u8]) -> Result<Self, ()>

fn atoi<S: AsRef<[u8]>>(s: S) -> Result<Self, ()>

impl FromAscii for u64

fn bytes_to_int(bytes: &[u8]) -> Result<Self, ()>

fn atoi<S: AsRef<[u8]>>(s: S) -> Result<Self, ()>

impl FromAscii for usize

fn bytes_to_int(bytes: &[u8]) -> Result<Self, ()>

fn atoi<S: AsRef<[u8]>>(s: S) -> Result<Self, ()>

impl FromAscii for i8

fn bytes_to_int(bytes: &[u8]) -> Result<Self, ()>

fn atoi<S: AsRef<[u8]>>(s: S) -> Result<Self, ()>

impl FromAscii for i16

fn bytes_to_int(bytes: &[u8]) -> Result<Self, ()>

fn atoi<S: AsRef<[u8]>>(s: S) -> Result<Self, ()>

impl FromAscii for i32

fn bytes_to_int(bytes: &[u8]) -> Result<Self, ()>

fn atoi<S: AsRef<[u8]>>(s: S) -> Result<Self, ()>

impl FromAscii for i64

fn bytes_to_int(bytes: &[u8]) -> Result<Self, ()>

fn atoi<S: AsRef<[u8]>>(s: S) -> Result<Self, ()>

impl FromAscii for isize

fn bytes_to_int(bytes: &[u8]) -> Result<Self, ()>

fn atoi<S: AsRef<[u8]>>(s: S) -> Result<Self, ()>

Implementors