Unequal → Not equal

compiler/rustc_borrowck/src/dataflow.rs

@@ -306,7 +306,7 @@ impl<'a, 'tcx> Borrows<'a, 'tcx> {
         }
 
         // By passing `PlaceConflictBias::NoOverlap`, we conservatively assume that any given
-        // pair of array indices are unequal, so that when `places_conflict` returns true, we
+        // pair of array indices are not equal, so that when `places_conflict` returns true, we
         // will be assured that two places being compared definitely denotes the same sets of
         // locations.
         let definitely_conflicting_borrows = other_borrows_of_local.filter(|&i| {

compiler/rustc_error_codes/src/error_codes/E0416.md

@@ -23,6 +23,6 @@ Or maybe did you mean to unify? Consider using a guard:
 # let (A, B, C) = (1, 2, 3);
 match (A, B, C) {
     (x, x2, see) if x == x2 => { /* A and B are equal, do one thing */ }
-    (y, z, see) => { /* A and B unequal; do another thing */ }
+    (y, z, see) => { /* A and B not equal; do another thing */ }
 }
 ```

compiler/rustc_expand/src/mbe/transcribe.rs

@@ -367,7 +367,7 @@ impl LockstepIterSize {
 ///
 /// Example: `$($($x $y)+*);+` -- we need to make sure that `x` and `y` repeat the same amount as
 /// each other at the given depth when the macro was invoked. If they don't it might mean they were
-/// declared at unequal depths or there was a compile bug. For example, if we have 3 repetitions of
+/// declared at depths which weren't equal or there was a compiler bug. For example, if we have 3 repetitions of
 /// the outer sequence and 4 repetitions of the inner sequence for `x`, we should have the same for
 /// `y`; otherwise, we can't transcribe them both at the given depth.
 fn lockstep_iter_size(

compiler/rustc_middle/src/mir/syntax.rs

@@ -1081,7 +1081,7 @@ pub enum Rvalue<'tcx> {
     /// Same as `BinaryOp`, but yields `(T, bool)` with a `bool` indicating an error condition.
     ///
     /// For addition, subtraction, and multiplication on integers the error condition is set when
-    /// the infinite precision result would be unequal to the actual result.
+    /// the infinite precision result would not be equal to the actual result.
     ///
     /// For shift operations on integers the error condition is set when the value of right-hand
     /// side is greater than or equal to the number of bits in the type of the left-hand side, or

compiler/rustc_middle/src/query/mod.rs

@@ -2215,7 +2215,7 @@ rustc_queries! {
     }
 
     /// Used in `super_combine_consts` to ICE if the type of the two consts are definitely not going to end up being
-    /// equal to eachother. This might return `Ok` even if the types are unequal, but will never return `Err` if
+    /// equal to eachother. This might return `Ok` even if the types are not equal, but will never return `Err` if
     /// the types might be equal.
     query check_tys_might_be_eq(arg: Canonical<'tcx, (ty::ParamEnv<'tcx>, Ty<'tcx>, Ty<'tcx>)>) -> Result<(), NoSolution> {
         desc { "check whether two const param are definitely not equal to eachother"}

compiler/rustc_middle/src/ty/consts/int.rs

@@ -237,7 +237,7 @@ impl ScalarInt {
     }
 
     /// Tries to convert the `ScalarInt` to an unsigned integer of the given size.
-    /// Fails if the size of the `ScalarInt` is unequal to `size` and returns the
+    /// Fails if the size of the `ScalarInt` is not equal to `size` and returns the
     /// `ScalarInt`s size in that case.
     #[inline]
     pub fn try_to_uint(self, size: Size) -> Result<u128, Size> {
@@ -297,7 +297,7 @@ impl ScalarInt {
     }
 
     /// Tries to convert the `ScalarInt` to a signed integer of the given size.
-    /// Fails if the size of the `ScalarInt` is unequal to `size` and returns the
+    /// Fails if the size of the `ScalarInt` is not equal to `size` and returns the
     /// `ScalarInt`s size in that case.
     #[inline]
     pub fn try_to_int(self, size: Size) -> Result<i128, Size> {
@@ -306,35 +306,35 @@ impl ScalarInt {
     }
 
     /// Tries to convert the `ScalarInt` to i8.
-    /// Fails if the size of the `ScalarInt` is unequal to `Size { raw: 1 }`
+    /// Fails if the size of the `ScalarInt` is not equal to `Size { raw: 1 }`
     /// and returns the `ScalarInt`s size in that case.
     pub fn try_to_i8(self) -> Result<i8, Size> {
         self.try_to_int(Size::from_bits(8)).map(|v| i8::try_from(v).unwrap())
     }
 
     /// Tries to convert the `ScalarInt` to i16.
-    /// Fails if the size of the `ScalarInt` is unequal to `Size { raw: 2 }`
+    /// Fails if the size of the `ScalarInt` is not equal to `Size { raw: 2 }`
     /// and returns the `ScalarInt`s size in that case.
     pub fn try_to_i16(self) -> Result<i16, Size> {
         self.try_to_int(Size::from_bits(16)).map(|v| i16::try_from(v).unwrap())
     }
 
     /// Tries to convert the `ScalarInt` to i32.
-    /// Fails if the size of the `ScalarInt` is unequal to `Size { raw: 4 }`
+    /// Fails if the size of the `ScalarInt` is not equal to `Size { raw: 4 }`
     /// and returns the `ScalarInt`s size in that case.
     pub fn try_to_i32(self) -> Result<i32, Size> {
         self.try_to_int(Size::from_bits(32)).map(|v| i32::try_from(v).unwrap())
     }
 
     /// Tries to convert the `ScalarInt` to i64.
-    /// Fails if the size of the `ScalarInt` is unequal to `Size { raw: 8 }`
+    /// Fails if the size of the `ScalarInt` is not equal to `Size { raw: 8 }`
     /// and returns the `ScalarInt`s size in that case.
     pub fn try_to_i64(self) -> Result<i64, Size> {
         self.try_to_int(Size::from_bits(64)).map(|v| i64::try_from(v).unwrap())
     }
 
     /// Tries to convert the `ScalarInt` to i128.
-    /// Fails if the size of the `ScalarInt` is unequal to `Size { raw: 16 }`
+    /// Fails if the size of the `ScalarInt` is not equal to `Size { raw: 16 }`
     /// and returns the `ScalarInt`s size in that case.
     pub fn try_to_i128(self) -> Result<i128, Size> {
         self.try_to_int(Size::from_bits(128)).map(|v| i128::try_from(v).unwrap())

library/alloc/src/rc.rs

@@ -1738,11 +1738,11 @@ impl<T: ?Sized + PartialEq> PartialEq for Rc<T> {
 
     /// Inequality for two `Rc`s.
     ///
-    /// Two `Rc`s are unequal if their inner values are unequal.
+    /// Two `Rc`s are not equal if their inner values are not equal.
     ///
     /// If `T` also implements `Eq` (implying reflexivity of equality),
     /// two `Rc`s that point to the same allocation are
-    /// never unequal.
+    /// always equal.
     ///
     /// # Examples
     ///

library/alloc/src/sync.rs

@@ -2475,10 +2475,10 @@ impl<T: ?Sized + PartialEq> PartialEq for Arc<T> {
 
     /// Inequality for two `Arc`s.
     ///
-    /// Two `Arc`s are unequal if their inner values are unequal.
+    /// Two `Arc`s are not equal if their inner values are not equal.
     ///
     /// If `T` also implements `Eq` (implying reflexivity of equality),
-    /// two `Arc`s that point to the same value are never unequal.
+    /// two `Arc`s that point to the same value are always equal.
     ///
     /// # Examples
     ///

library/core/src/hash/mod.rs

@@ -158,7 +158,7 @@ mod sip;
 ///
 /// Implementations of `hash` should ensure that the data they
 /// pass to the `Hasher` are prefix-free. That is,
-/// unequal values should cause two different sequences of values to be written,
+/// values which are not equal should cause two different sequences of values to be written,
 /// and neither of the two sequences should be a prefix of the other.
 ///
 /// For example, the standard implementation of [`Hash` for `&str`][impl] passes an extra

library/core/src/iter/traits/iterator.rs

@@ -3721,7 +3721,7 @@ pub trait Iterator {
         }
     }
 
-    /// Determines if the elements of this [`Iterator`] are unequal to those of
+    /// Determines if the elements of this [`Iterator`] are not equal to those of
     /// another.
     ///
     /// # Examples

library/core/src/primitive_docs.rs

@@ -1110,7 +1110,7 @@ impl<T: Copy> Copy for (T,) {
 /// - [NaN (not a number)](#associatedconstant.NAN): this value results from
 ///   calculations like `(-1.0).sqrt()`. NaN has some potentially unexpected
 ///   behavior:
-///   - It is unequal to any float, including itself! This is the reason `f32`
+///   - It is not equal to any float, including itself! This is the reason `f32`
 ///     doesn't implement the `Eq` trait.
 ///   - It is also neither smaller nor greater than any float, making it
 ///     impossible to sort by the default comparison operation, which is the

library/std/src/primitive_docs.rs

@@ -1110,7 +1110,7 @@ impl<T: Copy> Copy for (T,) {
 /// - [NaN (not a number)](#associatedconstant.NAN): this value results from
 ///   calculations like `(-1.0).sqrt()`. NaN has some potentially unexpected
 ///   behavior:
-///   - It is unequal to any float, including itself! This is the reason `f32`
+///   - It is not equal to any float, including itself! This is the reason `f32`
 ///     doesn't implement the `Eq` trait.
 ///   - It is also neither smaller nor greater than any float, making it
 ///     impossible to sort by the default comparison operation, which is the

library/std/src/sync/remutex.rs

@@ -35,7 +35,7 @@ use crate::sys::locks as sys;
 /// `owner` can be checked by other threads that want to see if they already
 /// hold the lock, so needs to be atomic. If it compares equal, we're on the
 /// same thread that holds the mutex and memory access can use relaxed ordering
-/// since we're not dealing with multiple threads. If it compares unequal,
+/// since we're not dealing with multiple threads. If it's not equal,
 /// synchronization is left to the mutex, making relaxed memory ordering for
 /// the `owner` field fine in all cases.
 pub struct ReentrantMutex<T> {