lx 0.4.0

A no_std crate to use Linux system calls
Documentation 
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use core::ffi::CStr;

use super::abi::*;
use crate::unit_result_from_value;

#[inline]
pub fn chdir(filename: &CStr) -> crate::Result<()> {
    // SAFETY: `filename` refers to a valid pointer.
    let ret = unsafe { syscall_1(80, filename.as_ptr() as usize) as u32 };
    unit_result_from_value(ret)
}