nod 1.4.4

Library for reading GameCube and Wii disc images.
Documentation 
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use std::{io, io::Read};

use zerocopy::{FromBytes, FromZeros, IntoBytes};

#[inline(always)]
pub fn read_from<T, R>(reader: &mut R) -> io::Result<T>
where
    T: FromBytes + IntoBytes,
    R: Read + ?Sized,
{
    let mut ret = <T>::new_zeroed();
    reader.read_exact(ret.as_mut_bytes())?;
    Ok(ret)
}

#[inline(always)]
pub fn read_vec<T, R>(reader: &mut R, count: usize) -> io::Result<Vec<T>>
where
    T: FromBytes + IntoBytes,
    R: Read + ?Sized,
{
    let mut ret =
        <T>::new_vec_zeroed(count).map_err(|_| io::Error::from(io::ErrorKind::OutOfMemory))?;
    reader.read_exact(ret.as_mut_slice().as_mut_bytes())?;
    Ok(ret)
}

#[inline(always)]
pub fn read_box<T, R>(reader: &mut R) -> io::Result<Box<T>>
where
    T: FromBytes + IntoBytes,
    R: Read + ?Sized,
{
    let mut ret = <T>::new_box_zeroed().map_err(|_| io::Error::from(io::ErrorKind::OutOfMemory))?;
    reader.read_exact(ret.as_mut().as_mut_bytes())?;
    Ok(ret)
}

#[inline(always)]
pub fn read_box_slice<T, R>(reader: &mut R, count: usize) -> io::Result<Box<[T]>>
where
    T: FromBytes + IntoBytes,
    R: Read + ?Sized,
{
    let mut ret = <[T]>::new_box_zeroed_with_elems(count)
        .map_err(|_| io::Error::from(io::ErrorKind::OutOfMemory))?;
    reader.read_exact(ret.as_mut().as_mut_bytes())?;
    Ok(ret)
}

#[inline(always)]
pub fn read_u16_be<R>(reader: &mut R) -> io::Result<u16>
where R: Read + ?Sized {
    let mut buf = [0u8; 2];
    reader.read_exact(&mut buf)?;
    Ok(u16::from_be_bytes(buf))
}

#[inline(always)]
pub fn read_u32_be<R>(reader: &mut R) -> io::Result<u32>
where R: Read + ?Sized {
    let mut buf = [0u8; 4];
    reader.read_exact(&mut buf)?;
    Ok(u32::from_be_bytes(buf))
}

#[inline(always)]
pub fn read_u64_be<R>(reader: &mut R) -> io::Result<u64>
where R: Read + ?Sized {
    let mut buf = [0u8; 8];
    reader.read_exact(&mut buf)?;
    Ok(u64::from_be_bytes(buf))
}