Release 0.3.5

.github/workflows/ci.yml

@@ -12,7 +12,7 @@ jobs:
     strategy:
       matrix:
         rust: [
-          1.91.0, # MSRV
+          1.93.0, # MSRV
           stable,
           beta,
           nightly,
@@ -52,7 +52,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
-      - uses: dtolnay/rust-toolchain@1.91.0
+      - uses: dtolnay/rust-toolchain@1.93.0
         with:
           components: rustfmt
       - run: cargo fmt --all --check

Cargo.toml

@@ -1,13 +1,13 @@
 [package]
 name = "num-primitive"
-version = "0.3.4"
+version = "0.3.5"
 description = "Traits for primitive numeric types"
 repository = "https://github.com/rust-num/num-primitive"
 license = "MIT OR Apache-2.0"
 keywords = ["generic", "mathematics", "numerics", "primitive"]
 categories = ["algorithms", "science", "no-std"]
 edition = "2024"
-rust-version = "1.91"
+rust-version = "1.93"
 
 [package.metadata.release]
 allow-branch = ["main"]

README.md

@@ -2,7 +2,7 @@
 
 [![crate](https://img.shields.io/crates/v/num-primitive.svg)](https://crates.io/crates/num-primitive)
 [![documentation](https://docs.rs/num-primitive/badge.svg)](https://docs.rs/num-primitive)
-[![minimum rustc 1.91](https://img.shields.io/badge/rustc-1.91+-red.svg)](https://rust-lang.github.io/rfcs/2495-min-rust-version.html)
+[![minimum rustc 1.93](https://img.shields.io/badge/rustc-1.93+-red.svg)](https://rust-lang.github.io/rfcs/2495-min-rust-version.html)
 [![build status](https://github.com/rust-num/num-primitive/workflows/CI/badge.svg)](https://github.com/rust-num/num-primitive/actions)
 
 Traits for primitive numeric types in Rust.
@@ -61,7 +61,7 @@ Release notes are available in [RELEASES.md](RELEASES.md).
 
 ## Compatibility
 
-The `num-primitive` crate is currently tested for Rust 1.91 and greater. This
+The `num-primitive` crate is currently tested for Rust 1.93 and greater. This
 minimum-supported Rust version (MSRV) may be increased at any time to add
 support for newly-stabilized functionality from the standard library. Changes
 will be documented prominently in the release notes.

RELEASES.md

@@ -1,3 +1,9 @@
+# Release 0.3.5 (2026-01-22)
+
+- Updated to MSRV 1.93.
+- Added `PrimitiveInteger::unchecked_{shl,shr}`.
+- Added `PrimitiveSigned::unchecked_neg`.
+
 # Release 0.3.4 (2025-12-20)
 
 - Added `PrimitiveInteger::from_str_radix`.

src/integer.rs

@@ -492,6 +492,24 @@ pub trait PrimitiveInteger:
     /// Self::MIN`, i.e. when [`checked_mul`][Self::checked_mul] would return `None`.
     unsafe fn unchecked_mul(self, rhs: Self) -> Self;
 
+    /// Unchecked shift left. Computes `self << rhs`, assuming that
+    /// `rhs` is less than the number of bits in `self`.
+    ///
+    /// # Safety
+    ///
+    /// This results in undefined behavior if `rhs` is larger than or equal to the number of bits
+    /// in `self`, i.e. when [`checked_shl`][Self::checked_shl] would return `None`.
+    unsafe fn unchecked_shl(self, rhs: u32) -> Self;
+
+    /// Unchecked shift right. Computes `self >> rhs`, assuming that
+    /// `rhs` is less than the number of bits in `self`.
+    ///
+    /// # Safety
+    ///
+    /// This results in undefined behavior if `rhs` is larger than or equal to the number of bits
+    /// in `self`, i.e. when [`checked_shr`][Self::checked_shr] would return `None`.
+    unsafe fn unchecked_shr(self, rhs: u32) -> Self;
+
     /// Unchecked integer subtraction. Computes `self - rhs`, assuming overflow cannot occur.
     ///
     /// # Safety
@@ -668,6 +686,8 @@ macro_rules! impl_integer {
             forward! {
                 unsafe fn unchecked_add(self, rhs: Self) -> Self;
                 unsafe fn unchecked_mul(self, rhs: Self) -> Self;
+                unsafe fn unchecked_shl(self, rhs: u32) -> Self;
+                unsafe fn unchecked_shr(self, rhs: u32) -> Self;
                 unsafe fn unchecked_sub(self, rhs: Self) -> Self;
             }
         }

src/signed.rs

@@ -146,6 +146,14 @@ pub trait PrimitiveSigned:
     /// Wrapping (modular) subtraction with an unsigned integer. Computes `self - rhs`, wrapping
     /// around at the boundary of the type.
     fn wrapping_sub_unsigned(self, rhs: Self::Unsigned) -> Self;
+
+    /// Unchecked negation. Computes `-self`, assuming overflow cannot occur.
+    ///
+    /// # Safety
+    ///
+    /// This results in undefined behavior when `self == Self::MIN`, i.e. when
+    /// [`checked_neg`][PrimitiveInteger::checked_neg] would return `None`.
+    unsafe fn unchecked_neg(self) -> Self;
 }
 
 /// Trait for references to primitive signed integer types ([`PrimitiveSigned`]).
@@ -185,6 +193,9 @@ macro_rules! impl_signed {
                 fn wrapping_add_unsigned(self, rhs: Self::Unsigned) -> Self;
                 fn wrapping_sub_unsigned(self, rhs: Self::Unsigned) -> Self;
             }
+            forward! {
+                unsafe fn unchecked_neg(self) -> Self;
+            }
         }
 
         impl PrimitiveSignedRef<$Signed> for &$Signed {}