hru(1): made it actually work

This commit is contained in:
Emma Tebibyte 2024-02-13 17:32:31 -07:00
parent fa686eefb9
commit 1ee668aed6
Signed by: emma
GPG Key ID: 06FA419A1698C270

View File

@ -20,64 +20,36 @@ use std::{
cmp::Ordering,
env::args,
io::stdin,
process::exit,
process::ExitCode,
};
extern crate sysexits;
use sysexits::EX_SOFTWARE;
fn auto_c(input: u64) -> (u64, u32) {
let mut number = input;
let mut remainder = 0;
let mut exp: u32 = 0;
if number % 10 > 0 { }
else {
while remainder == 0 {
number /= 10;
remainder = number % 10;
exp += 1;
}
}
use sysexits::EX_DATAERR;
fn convert(input: u64) -> (f64, u32) {
let list: Vec<u32> = vec![3, 6, 9, 12, 15, 18, 21, 24, 27, 30];
let mut exps = list.iter().peekable();
let mut out = (0.0, 0_u32);
while let Some(i) = exps.next() {
match exp.cmp(i) {
if input < 1000 { return (input as f64, 0); }
for n in list {
let c = 10_u64.pow(n);
match c.cmp(&input) {
Ordering::Less => {
number = input;
break;
out = (input as f64 / c as f64, n);
},
Ordering::Equal => break,
Ordering::Greater => {
if let Some(p) = exps.peek() {
match exp.cmp(p) {
Ordering::Less => {
let exp_e = 10_u64.checked_pow(exp)
.unwrap_or_else(|| { exit(EX_SOFTWARE); });
let index_e = 10_u64.checked_pow(i.to_owned())
.unwrap_or_else(|| { exit(EX_SOFTWARE); });
number *= exp_e / index_e;
exp = *i;
break;
},
Ordering::Greater => continue,
_ => break,
};
}
Ordering::Equal => {
return (input as f64 / c as f64, n);
},
Ordering::Greater => {},
};
}
(number, exp)
out
}
fn main() {
fn main() -> ExitCode {
let argv = args().collect::<Vec<String>>();
let mut buf = String::new();
let _ = stdin().read_line(&mut buf);
@ -86,11 +58,11 @@ fn main() {
Ok(f) => f,
Err(err) => {
eprintln!("{}: {}", argv[0], err);
exit(1);
return ExitCode::from(EX_DATAERR as u8);
},
};
let (number, prefix) = auto_c(n);
let (number, prefix) = convert(n);
let si_prefix = format!("{}B", match prefix {
3 => "K",
@ -106,5 +78,9 @@ fn main() {
_ => "",
});
println!("{} {}", number.to_string(), si_prefix);
let out = ((number * 10.0).round() / 10.0).to_string();
println!("{} {}", out, si_prefix);
ExitCode::SUCCESS
}