Assume has_int_to_from_bytes

Author: cuviper

build.rs

@@ -3,7 +3,6 @@ fn main() {
 
     ac.emit_expression_cfg("1f64.total_cmp(&2f64)", "has_total_cmp"); // 1.62
 
-    ac.emit_expression_cfg("1u32.to_ne_bytes()", "has_int_to_from_bytes");
     ac.emit_expression_cfg("3.14f64.to_ne_bytes()", "has_float_to_from_bytes");
 
     autocfg::rerun_path("build.rs");

src/ops/bytes.rs

@@ -2,8 +2,6 @@ use core::borrow::{Borrow, BorrowMut};
 use core::cmp::{Eq, Ord, PartialEq, PartialOrd};
 use core::fmt::Debug;
 use core::hash::Hash;
-#[cfg(not(has_int_to_from_bytes))]
-use core::mem::transmute;
 
 pub trait NumBytes:
     Debug
@@ -236,7 +234,6 @@ macro_rules! float_to_from_bytes_impl {
 
 macro_rules! int_to_from_bytes_impl {
     ($T:ty, $L:expr) => {
-        #[cfg(has_int_to_from_bytes)]
         impl ToBytes for $T {
             type Bytes = [u8; $L];
 
@@ -256,7 +253,6 @@ macro_rules! int_to_from_bytes_impl {
             }
         }
 
-        #[cfg(has_int_to_from_bytes)]
         impl FromBytes for $T {
             type Bytes = [u8; $L];
 
@@ -275,46 +271,6 @@ macro_rules! int_to_from_bytes_impl {
                 <$T>::from_ne_bytes(*bytes)
             }
         }
-
-        #[cfg(not(has_int_to_from_bytes))]
-        impl ToBytes for $T {
-            type Bytes = [u8; $L];
-
-            #[inline]
-            fn to_be_bytes(&self) -> Self::Bytes {
-                <$T as ToBytes>::to_ne_bytes(&<$T>::to_be(*self))
-            }
-
-            #[inline]
-            fn to_le_bytes(&self) -> Self::Bytes {
-                <$T as ToBytes>::to_ne_bytes(&<$T>::to_le(*self))
-            }
-
-            #[inline]
-            fn to_ne_bytes(&self) -> Self::Bytes {
-                unsafe { transmute(*self) }
-            }
-        }
-
-        #[cfg(not(has_int_to_from_bytes))]
-        impl FromBytes for $T {
-            type Bytes = [u8; $L];
-
-            #[inline]
-            fn from_be_bytes(bytes: &Self::Bytes) -> Self {
-                Self::from_be(<Self as FromBytes>::from_ne_bytes(bytes))
-            }
-
-            #[inline]
-            fn from_le_bytes(bytes: &Self::Bytes) -> Self {
-                Self::from_le(<Self as FromBytes>::from_ne_bytes(bytes))
-            }
-
-            #[inline]
-            fn from_ne_bytes(bytes: &Self::Bytes) -> Self {
-                unsafe { transmute(*bytes) }
-            }
-        }
     };
 }