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# Change Log: 2.027

Download D 2.027
released Mar 31, 2009

#### New/Changed Features

- Most functions in std.math are now pure nothrow. Improved speed of std.math.hypot.
- Added response files for Linux and OSX
- Added alias this
- Bugzilla 2746: Make float.init signalling NaN by default
- On Windows, if there are multiple source files on the command line they are now read with a background thread. This may speed up compilation.
- Folded in patches for LDC compatibility from Tomas Lindquist Olsen
- Removed etc.gamma from the library.

#### Bugs Fixed

- std.math.hypot is wrong for subnormal arguments
- Fix bug where / wasn't recognized as a path separator on Windows.
- Bugzilla 920: Fix one more out of date reference to 'auto' rather than 'scope'
- Bugzilla 1645: can override base class' const method with non-const method
- Bugzilla 2319: "Win32 Exception" not very useful
- Bugzilla 2336: link to nonexistent std_array.html
- Bugzilla 2570: Patch for some mistakes in Ddoc comments
- Bugzilla 2574: std.c.stdio doesn't compile: va_list not defined!
- Bugzilla 2591: custom allocator new argument should be size_t instead of uint
- Bugzilla 2595: template ctors crash compiler
- Bugzilla 2596: Variadic constructors don't compile
- Bugzilla 2626: template function not working against template struct instantiated with default arguments
- Bugzilla 2674: Copy postblit constructor this(this) not called for members
- Bugzilla 2689: seek behaves incorrectly on MAC OSX
- Bugzilla 2692: alignment of double on x86 linux is incorrect
- Bugzilla 2700: typeof tests stops compilation abruptly
- Bugzilla 2705: Response file size cannot exceed 64kb
- Bugzilla 2711: -H produces bad headers files if function defintion is templated and have auto return value
- Bugzilla 2722: ICE with variadic template parameters
- Bugzilla 2723: ICE with variadic template parameters, different case
- Bugzilla 2724: Persistent segfaults in templated code
- Bugzilla 2725: Pattern matching in static if not working with variadic arguments
- Bugzilla 2727: std.date Cyclic dependency
- Bugzilla 2728: Bogus Error message on const ref return
- Bugzilla 2729: hash_t undocumented and unnecessary
- Bugzilla 2730: Restriction on op= can be lifted
- Bugzilla 2731: Errors in associative array example
- Bugzilla 2739: _argptr is invalid for functions nested in class methods
- Bugzilla 2743: dumpobj gives "buss error" on Tiger
- Bugzilla 2744: wrong init tocbuffer of forstatement
- Bugzilla 2745: missing token tochars in lexer.c
- Bugzilla 2747: improper toCBuffer of funcexp
- Bugzilla 2750: Optimize slice copy with size known at compile time
- Bugzilla 2751: incorrect scope storage class vardeclaration tocbuffer
- Bugzilla 2752: std.xml does not encode CData correctly
- Bugzilla 2754: The error message regarding implicit conversion to shared doesn't mention shared in the message.
- Bugzilla 2755: ICE on invalid ref returns in linked objects: Assertion failure: 'type' on line 6566 in file 'expression.c'. No ICE or error if invalid code is local to the file.
- Bugzilla 2756: Bad code generation for pure nothrow math functions
- Bugzilla 2761: Unreachable statement warning in std.string
- Bugzilla 2763: std.mangle.demangle not translating 'ya'
- Bugzilla 2766: DMD hangs with 0%cpu
- Bugzilla 2767: DMD incorrectly mangles NTFS stream names
- Bugzilla 2772: lib can't open response file

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