bjoernager/rust
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Remove unneeded fn main blocks from docs

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This commit is contained in:
Lzu Tao 2019-10-01 11:55:46 +00:00
parent d16ee891c6
commit 6c1b447f2e
18 changed files with 263 additions and 369 deletions
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42
src/libcore/ptr/mod.rs
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@ -2732,31 +2732,29 @@ impl<T: ?Sized> Eq for *mut T {}
/// impl Trait for Wrapper {}
/// impl Trait for i32 {}
///
/// fn main() {
/// let wrapper = Wrapper { member: 10 };
/// let wrapper = Wrapper { member: 10 };
///
/// // Pointers have equal addresses.
/// assert!(std::ptr::eq(
/// &wrapper as *const Wrapper as *const u8,
/// &wrapper.member as *const i32 as *const u8
/// ));
/// // Pointers have equal addresses.
/// assert!(std::ptr::eq(
/// &wrapper as *const Wrapper as *const u8,
/// &wrapper.member as *const i32 as *const u8
/// ));
///
/// // Objects have equal addresses, but `Trait` has different implementations.
/// assert!(!std::ptr::eq(
/// &wrapper as &dyn Trait,
/// &wrapper.member as &dyn Trait,
/// ));
/// assert!(!std::ptr::eq(
/// &wrapper as &dyn Trait as *const dyn Trait,
/// &wrapper.member as &dyn Trait as *const dyn Trait,
/// ));
/// // Objects have equal addresses, but `Trait` has different implementations.
/// assert!(!std::ptr::eq(
/// &wrapper as &dyn Trait,
/// &wrapper.member as &dyn Trait,
/// ));
/// assert!(!std::ptr::eq(
/// &wrapper as &dyn Trait as *const dyn Trait,
/// &wrapper.member as &dyn Trait as *const dyn Trait,
/// ));
///
/// // Converting the reference to a `*const u8` compares by address.
/// assert!(std::ptr::eq(
/// &wrapper as &dyn Trait as *const dyn Trait as *const u8,
/// &wrapper.member as &dyn Trait as *const dyn Trait as *const u8,
/// ));
/// }
/// // Converting the reference to a `*const u8` compares by address.
/// assert!(std::ptr::eq(
/// &wrapper as &dyn Trait as *const dyn Trait as *const u8,
/// &wrapper.member as &dyn Trait as *const dyn Trait as *const u8,
/// ));
/// ```
#[stable(feature = "ptr_eq", since = "1.17.0")]
#[inline]