Change Log: 2.020

New/Changed Features

• Improved performance of AAs by rebalancing trees when rehashing.
• immutable now is implemented.
• Bugzilla 2344: Two wrong lookups for array functions
• Bugzilla 2345: Return by reference should be allowed
• Posix is now a predefined identifier when compiling under Linux
• Based on Sean Kelly's hard work, Phobos has been split into two libraries, druntime.lib and phobos.lib. This will enable better integration with Tango. The user source code changes are:

  from	to
  bit	bool
  _d_OutOfMemory()	onOutOfMemoryError()
  import std.asserterror;	import core.exception;
  import std.hiddenfunc;	import core.exception;
  import std.switcherr;	import core.exception;
  import std.array;	import core.exception;
  import std.outofmemory;	import core.exception;
  import std.gc;	import core.memory;
  import std.thread;	import core.thread;
  SwitchError	SwitchException
  AssertError	AssertException
  HiddenFuncError	HiddenFuncException
  ArrayBoundsError	ArrayBoundsException
  std.gc.fullCollect()	GC.collect()
  std.gc.*()	memory.gc_*()
  _moduleUnitTests()	import runtime; runModuleUnitTests()
  printf	add import std.c.stdio;

  Changes to thread:
  • The thread handle isn't exposed to the user. This can always be obtained using the appropriate OS calls from within the thread.
  • There is no druntime equivalent for Thread.pause() and Thread.resume(). The closest is thread_suspendAll() and thread_resumeAll()--extern (C) calls meant for use by the GC.
  • Thread.wait() is renamed to Thread.join().
  • Sleep functionality is available as Thread.sleep(double), where the parameter represents the number of seconds to sleep (fractional values accepted, obviously).
  This is a big change, and expect some problems for a release or two with this.