1 files changed, 0 insertions, 58 deletions
diff --git a/rustlings/solutions/13_error_handling/errors2.rs b/rustlings/solutions/13_error_handling/errors2.rs
deleted file mode 100644
index f0e144e..0000000
--- a/rustlings/solutions/13_error_handling/errors2.rs
+++ /dev/null
@@ -1,58 +0,0 @@
-// Say we're writing a game where you can buy items with tokens. All items cost
-// 5 tokens, and whenever you purchase items there is a processing fee of 1
-// token. A player of the game will type in how many items they want to buy, and
-// the `total_cost` function will calculate the total cost of the items. Since
-// the player typed in the quantity, we get it as a string. They might have
-// typed anything, not just numbers!
-//
-// Right now, this function isn't handling the error case at all. What we want
-// to do is: If we call the `total_cost` function on a string that is not a
-// number, that function will return a `ParseIntError`. In that case, we want to
-// immediately return that error from our function and not try to multiply and
-// add.
-//
-// There are at least two ways to implement this that are both correct. But one
-// is a lot shorter!
-
-use std::num::ParseIntError;
-
-#[allow(unused_variables, clippy::question_mark)]
-fn total_cost(item_quantity: &str) -> Result<i32, ParseIntError> {
-    let processing_fee = 1;
-    let cost_per_item = 5;
-
-    // Added `?` to propagate the error.
-    let qty = item_quantity.parse::<i32>()?;
-    //                                    ^ added
-
-    // Equivalent to this verbose version:
-    let qty = match item_quantity.parse::<i32>() {
-        Ok(v) => v,
-        Err(e) => return Err(e),
-    };
-
-    Ok(qty * cost_per_item + processing_fee)
-}
-
-fn main() {
-    // You can optionally experiment here.
-}
-
-#[cfg(test)]
-mod tests {
-    use super::*;
-    use std::num::IntErrorKind;
-
-    #[test]
-    fn item_quantity_is_a_valid_number() {
-        assert_eq!(total_cost("34"), Ok(171));
-    }
-
-    #[test]
-    fn item_quantity_is_an_invalid_number() {
-        assert_eq!(
-            total_cost("beep boop").unwrap_err().kind(),
-            &IntErrorKind::InvalidDigit,
-        );
-    }
-}