Implement Integer::dec and inc

rust-num · May 3, 2024 · 2d13702 · 2d13702
1 parent e09db4a
commit 2d13702
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diff --git a/Cargo.toml b/Cargo.toml
@@ -45,7 +45,7 @@ name = "shootout-pidigits"
 [dependencies]
 
 [dependencies.num-integer]
-version = "0.1.42"
+version = "0.1.46"
 default-features = false
 features = ["i128"]
 

diff --git a/src/bigint.rs b/src/bigint.rs
@@ -510,6 +510,14 @@ impl Integer for BigInt {
     fn prev_multiple_of(&self, other: &Self) -> Self {
         self - self.mod_floor(other)
     }
+
+    fn dec(&mut self) {
+        *self -= 1u32;
+    }
+
+    fn inc(&mut self) {
+        *self += 1u32;
+    }
 }
 
 impl Roots for BigInt {

diff --git a/src/biguint.rs b/src/biguint.rs
@@ -325,6 +325,14 @@ impl Integer for BigUint {
     fn prev_multiple_of(&self, other: &Self) -> Self {
         self - self.mod_floor(other)
     }
+
+    fn dec(&mut self) {
+        *self -= 1u32;
+    }
+
+    fn inc(&mut self) {
+        *self += 1u32;
+    }
 }
 
 #[inline]