Add #[rustc_no_mir] to make tests pass with -Z orbit.

[rust.git] / src / libcore / num / mod.rs

diff --git a/src/libcore/num/mod.rs b/src/libcore/num/mod.rs
index 9a9dfaa26797a3977c39708940c4cefcce3a8dc9..e6f83498ab1e2638dbd90b4cdc56c6c2c33a924d 100644 (file)
--- a/src/libcore/num/mod.rs
+++ b/src/libcore/num/mod.rs
@@ -41,7 +41,7 @@
 #[derive(PartialEq, Eq, PartialOrd, Ord, Clone, Copy, Debug, Default)]
 pub struct Wrapping<T>(#[stable(feature = "rust1", since = "1.0.0")] pub T);
 
-pub mod wrapping;
+mod wrapping;
 
 // All these modules are technically private and only exposed for libcoretest:
 pub mod flt2dec;
@@ -479,7 +479,7 @@ pub fn checked_rem(self, other: Self) -> Option<Self> {
             }
         }
 
-        /// Checked negation. Computes `!self`, returning `None` if `self ==
+        /// Checked negation. Computes `-self`, returning `None` if `self ==
         /// MIN`.
         ///
         /// # Examples
@@ -741,6 +741,13 @@ pub fn wrapping_neg(self) -> Self {
         /// where `mask` removes any high-order bits of `rhs` that
         /// would cause the shift to exceed the bitwidth of the type.
         ///
+        /// Note that this is *not* the same as a rotate-left; the
+        /// RHS of a wrapping shift-left is restricted to the range
+        /// of the type, rather than the bits shifted out of the LHS
+        /// being returned to the other end. The primitive integer
+        /// types all implement a `rotate_left` function, which may
+        /// be what you want instead.
+        ///
         /// # Examples
         ///
         /// Basic usage:
@@ -759,6 +766,13 @@ pub fn wrapping_shl(self, rhs: u32) -> Self {
         /// where `mask` removes any high-order bits of `rhs` that
         /// would cause the shift to exceed the bitwidth of the type.
         ///
+        /// Note that this is *not* the same as a rotate-right; the
+        /// RHS of a wrapping shift-right is restricted to the range
+        /// of the type, rather than the bits shifted out of the LHS
+        /// being returned to the other end. The primitive integer
+        /// types all implement a `rotate_right` function, which may
+        /// be what you want instead.
+        ///
         /// # Examples
         ///
         /// Basic usage:
@@ -994,6 +1008,7 @@ pub fn overflowing_shr(self, rhs: u32) -> (Self, bool) {
         /// ```
         #[stable(feature = "rust1", since = "1.0.0")]
         #[inline]
+        #[cfg_attr(not(stage0), rustc_no_mir)] // FIXME #29769 MIR overflow checking is TBD.
         pub fn pow(self, mut exp: u32) -> Self {
             let mut base = self;
             let mut acc = Self::one();
@@ -1035,6 +1050,7 @@ pub fn pow(self, mut exp: u32) -> Self {
         /// ```
         #[stable(feature = "rust1", since = "1.0.0")]
         #[inline]
+        #[cfg_attr(not(stage0), rustc_no_mir)] // FIXME #29769 MIR overflow checking is TBD.
         pub fn abs(self) -> Self {
             if self.is_negative() {
                 // Note that the #[inline] above means that the overflow
@@ -1999,6 +2015,7 @@ pub fn overflowing_shr(self, rhs: u32) -> (Self, bool) {
         /// ```
         #[stable(feature = "rust1", since = "1.0.0")]
         #[inline]
+        #[cfg_attr(not(stage0), rustc_no_mir)] // FIXME #29769 MIR overflow checking is TBD.
         pub fn pow(self, mut exp: u32) -> Self {
             let mut base = self;
             let mut acc = Self::one();
@@ -2165,8 +2182,8 @@ impl usize {
 /// This `enum` is used as the return type for [`f32::classify()`] and [`f64::classify()`]. See
 /// their documentation for more.
 ///
-/// [`f32::classify()`]: ../primitive.f32.html#method.classify
-/// [`f64::classify()`]: ../primitive.f64.html#method.classify
+/// [`f32::classify()`]: ../../std/primitive.f32.html#method.classify
+/// [`f64::classify()`]: ../../std/primitive.f64.html#method.classify
 #[derive(Copy, Clone, PartialEq, Debug)]
 #[stable(feature = "rust1", since = "1.0.0")]
 pub enum FpCategory {
@@ -2195,7 +2212,7 @@ pub enum FpCategory {
 #[doc(hidden)]
 #[unstable(feature = "core_float",
            reason = "stable interface is via `impl f{32,64}` in later crates",
-           issue = "27702")]
+           issue = "32110")]
 pub trait Float: Sized {
     /// Returns the NaN value.
     #[unstable(feature = "float_extras", reason = "needs removal",
@@ -2397,7 +2414,7 @@ fn from_str_radix<T: FromStrRadixHelper>(src: &str, radix: u32)
 /// This error is used as the error type for the `from_str_radix()` functions
 /// on the primitive integer types, such as [`i8::from_str_radix()`].
 ///
-/// [`i8::from_str_radix()`]: ../std/primitive.i8.html#method.from_str_radix
+/// [`i8::from_str_radix()`]: ../../std/primitive.i8.html#method.from_str_radix
 #[derive(Debug, Clone, PartialEq)]
 #[stable(feature = "rust1", since = "1.0.0")]
 pub struct ParseIntError { kind: IntErrorKind }