use std::io;
pub trait ReadExt: io::Read {
#[inline]
fn read_u8(&mut self) -> io::Result<u8> {
let mut buf = [0; 1];
self.read_exact(&mut buf)?;
Ok(buf[0])
}
#[inline]
fn read_i8(&mut self) -> io::Result<i8> {
let mut buf = [0; 1];
self.read_exact(&mut buf)?;
Ok(i8::from_le_bytes(buf))
}
#[inline]
fn read_u16_le(&mut self) -> io::Result<u16> {
let mut buf = [0; 2];
self.read_exact(&mut buf)?;
Ok(u16::from_le_bytes(buf))
}
#[inline]
fn read_i16_le(&mut self) -> io::Result<i16> {
let mut buf = [0; 2];
self.read_exact(&mut buf)?;
Ok(i16::from_le_bytes(buf))
}
#[inline]
fn read_u32_le(&mut self) -> io::Result<u32> {
let mut buf = [0; 4];
self.read_exact(&mut buf)?;
Ok(u32::from_le_bytes(buf))
}
#[inline]
fn read_i32_le(&mut self) -> io::Result<i32> {
let mut buf = [0; 4];
self.read_exact(&mut buf)?;
Ok(i32::from_le_bytes(buf))
}
#[inline]
fn read_u64_le(&mut self) -> io::Result<u64> {
let mut buf = [0; 8];
self.read_exact(&mut buf)?;
Ok(u64::from_le_bytes(buf))
}
#[inline]
fn read_i64_le(&mut self) -> io::Result<i64> {
let mut buf = [0; 8];
self.read_exact(&mut buf)?;
Ok(i64::from_le_bytes(buf))
}
#[inline]
fn read_u128_le(&mut self) -> io::Result<u128> {
let mut buf = [0; 16];
self.read_exact(&mut buf)?;
Ok(u128::from_le_bytes(buf))
}
#[inline]
fn read_i128_le(&mut self) -> io::Result<i128> {
let mut buf = [0; 16];
self.read_exact(&mut buf)?;
Ok(i128::from_le_bytes(buf))
}
#[inline]
fn read_f32_le(&mut self) -> io::Result<f32> {
let mut buf = [0; 4];
self.read_exact(&mut buf)?;
Ok(f32::from_le_bytes(buf))
}
#[inline]
fn read_f64_le(&mut self) -> io::Result<f64> {
let mut buf = [0; 8];
self.read_exact(&mut buf)?;
Ok(f64::from_le_bytes(buf))
}
}
impl<R: io::Read + ?Sized> ReadExt for R {}
pub trait WriteExt: io::Write {
#[inline]
fn write_u8(&mut self, n: u8) -> io::Result<()> {
self.write_all(&n.to_le_bytes())
}
#[inline]
fn write_i8(&mut self, n: i8) -> io::Result<()> {
self.write_all(&n.to_le_bytes())
}
#[inline]
fn write_u16_le(&mut self, n: u16) -> io::Result<()> {
self.write_all(&n.to_le_bytes())
}
#[inline]
fn write_i16_le(&mut self, n: i16) -> io::Result<()> {
self.write_all(&n.to_le_bytes())
}
#[inline]
fn write_u32_le(&mut self, n: u32) -> io::Result<()> {
self.write_all(&n.to_le_bytes())
}
#[inline]
fn write_i32_le(&mut self, n: i32) -> io::Result<()> {
self.write_all(&n.to_le_bytes())
}
#[inline]
fn write_u64_le(&mut self, n: u64) -> io::Result<()> {
self.write_all(&n.to_le_bytes())
}
#[inline]
fn write_i64_le(&mut self, n: i64) -> io::Result<()> {
self.write_all(&n.to_le_bytes())
}
#[inline]
fn write_f32_le(&mut self, n: f32) -> io::Result<()> {
self.write_all(&n.to_le_bytes())
}
#[inline]
fn write_f64_le(&mut self, n: f64) -> io::Result<()> {
self.write_all(&n.to_le_bytes())
}
#[inline]
fn write_u128_le(&mut self, n: u128) -> io::Result<()> {
self.write_all(&n.to_le_bytes())
}
#[inline]
fn write_i128_le(&mut self, n: i128) -> io::Result<()> {
self.write_all(&n.to_le_bytes())
}
}
impl<W: io::Write + ?Sized> WriteExt for W {}