fix set_bit, edit borsh features

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "bnum"
-version = "0.11.0"
+version = "0.12.0"
 authors = ["isaac-holt <[email protected]>"]
 edition = "2021"
 license = "MIT OR Apache-2.0"
@@ -20,7 +20,6 @@ default = []
 nightly = []
 serde = ["dep:serde", "serde-big-array"]
 numtraits = ["num-integer", "num-traits"]
-borsh = ["dep:borsh"]
 
 [dependencies]
 num-integer = { version = "0.1", optional = true, default-features = false }
@@ -34,7 +33,7 @@ quickcheck = { version = "1.0", optional = true, default-features = false }
 # proptest = { version = "1.2", optional = true, default-features = false }
 valuable = { version = "0.1", optional = true, features = ["derive"], default-features = false }
 # lit-parser = { path = "./lit-parser/", optional = true }
-borsh = { version = "^1.5", optional = true, default-features = false, features = ["rc", "std", "unstable__schema"]}
+borsh = { version = "^1.5", optional = true, default-features = false, features = ["unstable__schema"] }
 
 [dev-dependencies]
 quickcheck = "1.0"

README.md

@@ -32,13 +32,13 @@ This crate uses Rust's const generics to allow creation of integers of arbitrary
 To install and use `bnum`, simply add the following line to your `Cargo.toml` file in the `[dependencies]` section:
 
 ```toml
-bnum = "0.11.0"
+bnum = "0.12.0"
 ```
 
 Or, to enable various `bnum` features as well, add for example this line instead:
 
 ```toml
-bnum = { version = "0.11.0", features = ["rand"] } # enables the "rand" feature
+bnum = { version = "0.12.0", features = ["rand"] } # enables the "rand" feature
 ```
 
 ## Example Usage
@@ -113,6 +113,8 @@ The `rand` feature allows creation of random `bnum` integers via the [`rand`](ht
 
 The `serde` feature enables serialization and deserialization of `bnum` integers via the [`serde`](https://docs.rs/serde/latest/serde/) and [`serde_big_array`](https://docs.rs/serde-big-array/latest/serde_big_array/) crates.
 
+The `borsh`
+
 ### `num_traits` and `num_integer` trait implementations
 
 The `numtraits` feature includes implementations of traits from the [`num_traits`](https://docs.rs/num-traits/latest/num_traits/) and [`num_integer`](https://docs.rs/num-integer/latest/num_integer/) crates, e.g. [`AsPrimitive`](https://docs.rs/num-traits/latest/num_traits/cast/trait.AsPrimitive.html), [`Signed`](https://docs.rs/num-traits/latest/num_traits/sign/trait.Signed.html), [`Integer`](https://docs.rs/num-integer/latest/num_integer/trait.Integer.html) and [`Roots`](https://docs.rs/num-integer/latest/num_integer/trait.Roots.html).
@@ -131,7 +133,7 @@ The `valuable` feature enables the [`Valuable`](https://docs.rs/valuable/latest/
 
 ### Nightly features
 
-Activating the `nightly` feature will enable the `from_be_bytes`, `from_le_bytes`, `from_ne_bytes`, `to_be_bytes`, `to_le_bytes` and `to_ne_bytes` methods on `bnum`'s unsigned and signed integers and will make the `unchecked_...` methods `const`. This comes at the cost of only being able to compile on nightly. The nightly features that this uses are [`generic_const_exprs`](https://github.com/rust-lang/rust/issues/76560), [`const_trait_impl`](https://github.com/rust-lang/rust/issues/67792), [`effects`](https://github.com/rust-lang/rust/issues/102090) and [`const_option_ext`](https://github.com/rust-lang/rust/issues/91930).
+Activating the `nightly` feature will enable the `from_be_bytes`, `from_le_bytes`, `from_ne_bytes`, `to_be_bytes`, `to_le_bytes` and `to_ne_bytes` methods on `bnum`'s unsigned and signed integers and will make the `unchecked_...` methods `const`. This comes at the cost of only being able to compile on nightly. The nightly features that this uses are [`generic_const_exprs`](https://github.com/rust-lang/rust/issues/76560), [`const_trait_impl`](https://github.com/rust-lang/rust/issues/67792), [`effects`](https://github.com/rust-lang/rust/issues/102090) and [`const_option`](https://github.com/rust-lang/rust/issues/67441).
 
 ## Testing
 

src/buint/mod.rs

@@ -463,12 +463,15 @@ macro_rules! mod_impl {
             }
 
             #[doc = doc::set_bit!(U 256)]
-            #[must_use]
             #[inline]
             pub fn set_bit(&mut self, index: ExpType, value: bool) {
                 let digit = &mut self.digits[index as usize >> digit::$Digit::BIT_SHIFT];
                 let shift = index & digit::$Digit::BITS_MINUS_1;
-                *digit = *digit & (1 << shift) | ($Digit::from(value) << shift)
+                if value {
+                    *digit |= (1 << shift);
+                } else {
+                    *digit &= !(1 << shift);
+                }
             }
 
             /// Returns an integer whose value is `2^power`. This is faster than using a shift left on `Self::ONE`.

src/doc/mod.rs

@@ -333,7 +333,7 @@ macro_rules! bit {
     ($sign: ident $bits: literal) => {
         doc::doc_comment! {
             $sign $bits,
-            "Returns a boolean representing the bit in the given position (`true` if the bit is set). The least significant bit is at index `0`, the most significant bit is at index `Self::BITS - 1`",
+            "Returns a boolean representing the bit in the given position (`true` if the bit is set). The least significant bit is at index `0`, the most significant bit is at index `Self::BITS - 1`.",
 
             "let n = " doc::type_str!($sign $bits) "::from(0b001010100101010101u32);\n"
             "assert!(n.bit(0));\n"
@@ -349,12 +349,13 @@ macro_rules! set_bit {
     ($sign: ident $bits: literal) => {
         doc::doc_comment! {
             $sign $bits,
-            "Sets/unsets the bit in the given position (`1` if value is true). The least significant bit is at index `0`, the most significant bit is at index `Self::BITS - 1`",
+            "Sets/unsets the bit in the given position (`1` if value is true). The least significant bit is at index `0`, the most significant bit is at index `Self::BITS - 1`.",
 
             "let mut n = " doc::type_str!($sign $bits) "::from(0b001010100101010101u32);\n"
             "assert!(n.bit(2));\n"
-            "n.set_bit(2,false);\n"
+            "n.set_bit(2, false);\n"
             "assert!(!n.bit(2));\n"
+            "assert_eq!(n, " doc::type_str!($sign $bits) "::from(0b001010100101010001u32));"
         }
     };
 }

src/lib.rs

@@ -4,7 +4,7 @@
     feature(
         generic_const_exprs,
         const_trait_impl,
-        const_option_ext,
+        const_option,
         // effects,
     )
 )]
@@ -42,6 +42,13 @@ pub mod random;
 
 pub mod types;
 
+#[test]
+fn test_set_bit() {
+    let mut a = types::U128::MAX;
+    a.set_bit(6, false);
+    panic!("{:b}", a);
+}
+
 // #[cfg(feature = "nightly")]
 // mod float;