编程语言 D 2.068 发布

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　　编程语言 D 2.068 发布，此版本更新内容如下：
编译器改进

• 　　Warning: Change in helper function generation might cause link error.
  
• 　　The new -profile=gc switch enables profiling memory allocation.
  
• 　　unittest blocks no longer parsed unless -unittest is specified.
  
• 　　Compiler generated inclusive destructor and postblit functions for     UDTs are now    accessible as .__xdtor and .__xpostblit, see dmd#4650.
  

语言改进

• 　　pragma(inline) was added.
  
• 　　attribute inference for auto functions
  
• 
  　　Indexed type tuples can now be followed by dot>
  
• 　　Support template parameter deduction from function default arguments.
  
• 　　Invalid reinterpret casts can be detected in the frontend.
  

库改进

• 　　Many phobos functions were rangified.
  
• 　　std.typetuple was renamed to std.meta   but a backwards compatible forwarding module will remain.
  
• 　　TypeTuple was renamed to AliasSeq   but a backwards compatible alias will remain.
  
• 　　hexString was added to replace core language hex strings.
  
• 　　hasUDA was added to help checkfor the existence of user-defined attributes on symbols.
  
• 　　GC API calls can now be profiled separately.
  
• 　　The runtime implementations of synchronized and synchronized (obj) were   rewritten to fix a race condition during mutex initialization, see druntime#1274.
  
• 　　The handwritten object.di header was replaced by directly using the object.d source file,   see druntime#1222 for more details.
  
• 　　The AA implementation now uses open addressing.
  
• 　　Merging code coverage reports was fixed, see Bugzilla 14464 and dmd_coverSetMerge.
  
• 　　executeShell now ignores the SHELL environment variable and always uses sh, see Bugzilla 14282.
  
• 　　byLine was improved to use getdelim where available and is now up to 3x faster, see Bugzilla 11810.
  
• 　　The newly added ordered and strictlyOrdered can be used to test whether a few given values are ordered.
  
• 　　RefCounted uses the new return attribute to enable escape checking for it's payload.
  

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　　D语言(Dlang)是由Digital Mars公司开发的编程语言，起因是为了改进C＋＋。它与C二进制兼容（不完全），可编译为本地码，有GC也可手动管理内存，语法上借鉴多种语言，模板则在C＋＋的基础上做了相当大的扩充。D 语言既有 C 语言的强大威力，又有 Python 和 Ruby 的开发效率。它是一种集垃圾回收、手工内存操作、契约式设计、高级模板技术、内嵌汇编、内置单元测试、Mixin 风格多继承、类 Java 包管理机制、内置同步机制、内建基本运行时信息的系统级编程语言。
　　D语言是一种通用的系统和应用编程语言。它是比 C++ 更高级的语言，同时还保持了生成高效代码以及直接访问操作系统API和硬件的能力。D 很适合于编写从中等规模到那些由团队合作完成、数百万行代码规模的各种程序。D 易于学习，为编程者提供了很多便利，并且适用各种野心勃勃的编译器优化技术。
　　D 不是脚本语言，也不是一种解释型语言。它不需要虚拟机、宗教、或者高于一切的哲学。它是给实际的编程者使用的实际的语言，它帮助编程者快速、可靠的完成易于维护、易于理解的代码。