fix compilation errors, remove cfg warnings

Cargo.toml

@@ -46,4 +46,7 @@ lto = true # enable link-time optimisation for faster runtime, but slower compil
 opt-level = 3 # maximum optimisation level for faster runtime, but slower compile time
 
 [package.metadata.docs.rs]
-all-features = true
+all-features = true
+
+[lints.rust]
+unexpected_cfgs = { level = "warn", check-cfg = ['cfg(test_int_bits, values("64", "128"))'] }

changes/v0.12.0

@@ -0,0 +1,3 @@
+- Add optional borsh support
+- Add `digits_mut` method to unsigned integers.
+- `As` and `CastFrom` traits no longer const, as const trait support removed from latest nightly.

src/buint/as_float.rs

@@ -1,7 +1,7 @@
 use crate::ExpType;
 use crate::cast::CastFrom;
 
-#[cfg_attr(feature = "nightly", const_trait)]
+// #[cfg_attr(feature = "nightly", const_trait)]
 pub trait CastToFloatHelper: Copy {
     const ZERO: Self;
     const BITS: ExpType;
@@ -93,7 +93,7 @@ pub(crate) use impl_helper_buint;
 
 crate::macro_impl!(impl_helper_buint);
 
-#[cfg_attr(feature = "nightly", const_trait)]
+// #[cfg_attr(feature = "nightly", const_trait)]
 pub trait CastToFloatConsts {
     type M: Mantissa;
 
@@ -131,7 +131,7 @@ macro_rules! cast_to_float_consts {
 
 cast_to_float_consts!(f32; u32, f64; u64);
 
-#[cfg_attr(feature = "nightly", const_trait)]
+// #[cfg_attr(feature = "nightly", const_trait)]
 pub trait Mantissa {
     const ONE: Self;
     const TWO: Self;

src/cast.rs

@@ -2,12 +2,12 @@
 
 /// Backend implementation trait for panic-free casting between numeric types.
 
-#[cfg_attr(feature = "nightly", const_trait)]
+// #[cfg_attr(feature = "nightly", const_trait)]
 pub trait CastFrom<T> {
     fn cast_from(from: T) -> Self;
 }
 
-#[cfg_attr(feature = "nightly", const_trait)]
+// #[cfg_attr(feature = "nightly", const_trait)]
 pub(crate) trait CastTo<U> {
     fn cast_to(self) -> U;
 }
@@ -54,17 +54,19 @@ assert_eq!(b, f.as_());
 #[cfg(feature = "nightly")]
 macro_rules! as_trait {
     () => {
-        impl<T, U> const CastTo<U> for T
+        // impl<T, U> const CastTo<U> for T
+        impl<T, U> CastTo<U> for T
         where
-            U: ~const CastFrom<T>,
+            // U: ~const CastFrom<T>,
+            U: CastFrom<T>,
         {
             fn cast_to(self) -> U {
                 U::cast_from(self)
             }
         }
 
         #[doc = as_trait_doc!()]
-        #[const_trait]
+        // #[const_trait]
         pub trait As {
             #[doc = as_method_doc!()]
             fn as_<T>(self) -> T
@@ -73,11 +75,13 @@ macro_rules! as_trait {
                 Self: Sized;
         }
 
-        impl<U> const As for U {
+        // impl<U> const As for U {
+        impl<U> As for U {
             #[inline]
             fn as_<T>(self) -> T
             where
-                T: ~const CastFrom<Self>,
+                // T: ~const CastFrom<Self>,
+                T: CastFrom<Self>,
                 Self: Sized,
             {
                 T::cast_from(self)

src/int/numtraits.rs

@@ -299,19 +299,16 @@ macro_rules! prim_int_methods {
             fn pow(self, exp: u32) -> Self;
         }
 
-        #[cfg(has_leading_trailing_ones)]
         #[inline]
         fn leading_ones(self) -> u32 {
             Self::leading_ones(self)
         }
 
-        #[cfg(has_leading_trailing_ones)]
         #[inline]
         fn trailing_ones(self) -> u32 {
             Self::trailing_ones(self)
         }
 
-        #[cfg(has_reverse_bits)]
         #[inline]
         fn reverse_bits(self) -> Self {
             Self::reverse_bits(self)

src/lib.rs

@@ -5,7 +5,7 @@
         generic_const_exprs,
         const_trait_impl,
         const_option_ext,
-        effects,
+        // effects,
     )
 )]
 #![cfg_attr(

src/nightly.rs

@@ -51,7 +51,7 @@ pub(crate) use impl_const;
 #[cfg(feature = "nightly")]
 macro_rules! const_impl {
     { impl $(<$(const $C: ident : $ty: ty), +>)? const $($tt: tt) + } => {
-        impl $(<$(const $C: $ty), +>)? const $($tt) +
+        impl $(<$(const $C: $ty), +>)? $($tt) +
     }
 }