新闻 Rust 1.23.0 发布，Mozilla 开发的系统编程语言 下载

Rust 1.23.0 发布了。Rust 是一门由 Mozilla 开发的专注于安全性，速度和并发性的系统编程语言。

更新内容：

语言：

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  Arbitrary auto traits are now permitted in trait objects.
  
  
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  rustc now uses subtyping on the left hand side of binary operations. Which should fix some confusing errors in some operations.
  

编译器：

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  Enabled TrapUnreachable in LLVM which should mitigate the impact of undefined behaviour.
  
  
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  rustc now suggests renaming import if names clash.
  
  
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  Display errors/warnings correctly when there are zero-width or wide characters.
  
  
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  rustc now avoids unnecessary copies of arguments that are simple bindings This should improve memory usage on average by 5-10%.
  
  
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  Updated musl used to build musl rustc to 1.1.17
  

库：

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  Allow a trailing comma in assert_eq/ne macro
  
  
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  Implement Hash for raw pointers to unsized types
  
  
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  impl From<*mut T> for AtomicPtr<T>
  
  
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  impl From<usize/isize> for AtomicUsize/AtomicIsize.
  
  
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  Removed the T: Sync requirement for RwLock<T>: Send
  
  
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  Removed T: Sized requirement for {<*const T>, <*mut T>}::as_ref and <*mut T>::as_mut
  
  
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  Optimized Thread::{park, unpark} implementation
  
  
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  Improved SliceExt::binary_search performance.
  
  
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  impl FromIterator<()> for ()
  
  
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  Copied AsciiExt trait methods to primitive types. Use of AsciiExt is now deprecated.
  

完整内容请查看发行说明。

下载地址：

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  Source code (zip)
  
  
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  Source code (tar.gz)
  

Rust 1.23.0 发布，Mozilla 开发的系统编程语言下载地址