From f9422e706d627ef967b4fa48c4ac54a39701e7cc Mon Sep 17 00:00:00 2001
From: ltdk <usr@ltdk.xyz>
Date: Mon, 22 Mar 2021 15:22:47 -0400
Subject: [PATCH] Add LowerBounded/UpperBounded traits

---
 src/bounds.rs | 30 ++++++++++++++++++++++++++++--
 1 file changed, 28 insertions(+), 2 deletions(-)

diff --git a/src/bounds.rs b/src/bounds.rs
index c9ff749d..36e1bbdf 100644
--- a/src/bounds.rs
+++ b/src/bounds.rs
@@ -8,12 +8,38 @@ use core::{u16, u32, u64, u8, usize};
 /// Numbers which have upper and lower bounds
 pub trait Bounded {
     // FIXME (#5527): These should be associated constants
-    /// returns the smallest finite number this type can represent
+    /// Returns the smallest finite number this type can represent
     fn min_value() -> Self;
-    /// returns the largest finite number this type can represent
+    /// Returns the largest finite number this type can represent
     fn max_value() -> Self;
 }
 
+/// Numbers which have lower bounds
+pub trait LowerBounded {
+    /// Returns the smallest finite number this type can represent
+    fn min_value() -> Self;
+}
+
+// FIXME: With a major version bump, this should be a supertrait instead
+impl<T: Bounded> LowerBounded for T {
+    fn min_value() -> T {
+        Bounded::min_value()
+    }
+}
+
+/// Numbers which have upper bounds
+pub trait UpperBounded {
+    /// Returns the largest finite number this type can represent
+    fn max_value() -> Self;
+}
+
+// FIXME: With a major version bump, this should be a supertrait instead
+impl<T: Bounded> UpperBounded for T {
+    fn max_value() -> T {
+        Bounded::max_value()
+    }
+}
+
 macro_rules! bounded_impl {
     ($t:ty, $min:expr, $max:expr) => {
         impl Bounded for $t {