review: change roll result type to i32

01.workspace/oxidice_lib/src/imp/die_roll.rs

@@ -1,8 +1,8 @@
 use crate::*;
 
 impl Die {
-    pub fn roll(&self) -> u16 {
+    pub fn roll(&self) -> i32 {
         let mut rng = rand::rng();
-        rng.random_range(1..=self.sides) as u16
+        rng.random_range(1..=self.sides) as i32
     }
 }

01.workspace/oxidice_lib/src/imp/handful_roll.rs

@@ -2,7 +2,7 @@ use crate::*;
 
 impl Handful {
     pub fn roll(self) -> Outcome {
-        let mut die_rolls = Vec::<u16>::new();
+        let mut die_rolls = Vec::<i32>::new();
         for die in self.dice {
             die_rolls.push(die.roll());
         }

01.workspace/oxidice_lib/src/imp/outcome_max.rs

@@ -1,10 +1,10 @@
 use crate::*;
 
-fn max_of(values: Vec<u16>) -> Result<Outcome, FailedTo> {
+fn max_of(values: Vec<i32>) -> Result<Outcome, FailedTo> {
     if values.is_empty() {
         return Err(FailedTo::ProcessInput);
     }
-    let ret = Ok(Outcome::Scalar(u16::MIN));
+    let ret = Ok(Outcome::Scalar(i32::MIN));
     ret.and_then(|_| {
         values
             .iter()

01.workspace/oxidice_lib/src/imp/outcome_min.rs

@@ -1,10 +1,10 @@
 use crate::*;
 
-fn min_of(values: Vec<u16>) -> Result<Outcome, FailedTo> {
+fn min_of(values: Vec<i32>) -> Result<Outcome, FailedTo> {
     if values.is_empty() {
         return Err(FailedTo::ProcessInput);
     }
-    Ok(Outcome::Scalar(u16::MIN)).and_then(|_| {
+    Ok(Outcome::Scalar(i32::MIN)).and_then(|_| {
         values
             .iter()
             .min()

01.workspace/oxidice_lib/src/imp/outcome_sum.rs

@@ -1,6 +1,6 @@
 use crate::*;
 
-fn sum_of(values: Vec<u16>) -> Result<Outcome, FailedTo> {
+fn sum_of(values: Vec<i32>) -> Result<Outcome, FailedTo> {
     if values.is_empty() {
         return Ok(Outcome::Scalar(0));
     }
@@ -10,7 +10,7 @@ fn sum_of(values: Vec<u16>) -> Result<Outcome, FailedTo> {
             Outcome::List(_) => Err(FailedTo::ProcessInput),
             Outcome::Scalar(acc) => acc
                 .checked_add(value)
-                .map(|new_acc: u16| Outcome::Scalar(new_acc))
+                .map(|new_acc: i32| Outcome::Scalar(new_acc))
                 .ok_or(FailedTo::SumValues),
         })
     }

01.workspace/oxidice_lib/src/str/outcome.rs

@@ -4,8 +4,8 @@ use std::fmt::Display;
 
 #[derive(Debug, PartialEq, PartialOrd, Eq, Ord, Clone, Hash)]
 pub enum E {
-    Scalar(u16),
-    List(Vec<u16>),
+    Scalar(i32),
+    List(Vec<i32>),
 }
 
 impl Display for E {