rust/rustlings
1
0
Fork 0
mirror of https://github.com/rust-lang/rustlings.git synced 2025-06-15 00:04:58 +02:00
Code Issues Releases Activity

errors3 solution

Browse Source
This commit is contained in:
mo8it
2024-06-26 15:44:33 +02:00
parent 050a23ce67
commit c46d8bdf95
3 changed files with 46 additions and 12 deletions
Download Patch File Download Diff File Expand all files Collapse all files

21
exercises/13_error_handling/errors3.rs
View File

@ -4,6 +4,17 @@
use std::num::ParseIntError;
// Don't change this function.
fn total_cost(item_quantity: &str) -> Result<i32, ParseIntError> {
let processing_fee = 1;
let cost_per_item = 5;
let qty = item_quantity.parse::<i32>()?;
Ok(qty * cost_per_item + processing_fee)
}
// TODO: Fix the compiler error by changing the signature and body of the
// `main` function.
fn main() {
let mut tokens = 100;
let pretend_user_input = "8";
@ -14,14 +25,6 @@ fn main() {
println!("You can't afford that many!");
} else {
tokens -= cost;
println!("You now have {} tokens.", tokens);
println!("You now have {tokens} tokens.");
}
}
fn total_cost(item_quantity: &str) -> Result<i32, ParseIntError> {
let processing_fee = 1;
let cost_per_item = 5;
let qty = item_quantity.parse::<i32>()?;
Ok(qty * cost_per_item + processing_fee)
}