• Era Scarecrow (3/3) Jan 19 2012 Been a bit out of it for a while, but finding enough tools at my dispos...
• Jesse Phillips (7/18) Jan 20 2012 For the most part the language has been changing to match the
• Timon Gehr (30/33) Jan 20 2012 The most important changes are probably:

Era Scarecrow <rtcvb32 yahoo.com> writes:

 Been a bit out of it for a while, but finding enough tools at my disposal I
feel I can work on/convert a project now.

 I happen to have one of the first printing books (without the name on the
cover), and although it may be worth millions in a few years, apparently
there's been enough changes that certain features are not familiar in the
discussions.

 So I need to ask since I don't see any obvious pages that describe it. What
are the changes to D2, since the book's release? What has externally changed?
(Internal implementation of features need not be mentioned if it's transparent
to the programmer and user).

"Jesse Phillips" <jessekphillips+D gmail.com> writes:

On Thursday, 19 January 2012 at 20:44:04 UTC, Era Scarecrow wrote:
 Been a bit out of it for a while, but finding enough tools at 
 my disposal I feel I can work on/convert a project now.

 I happen to have one of the first printing books (without the 
 name on the cover), and although it may be worth millions in a 
 few years, apparently there's been enough changes that certain 
 features are not familiar in the discussions.

 So I need to ask since I don't see any obvious pages that 
 describe it. What are the changes to D2, since the book's 
 release? What has externally changed? (Internal implementation 
 of features need not be mentioned if it's transparent to the 
 programmer and user).

For the most part the language has been changing to match the 
book. There are still bugs in that regard.

http://d.puremagic.com/issues/buglist.cgi?quicksearch=[tdpl]

The book itself has its own bugs, which can be found on the 
errata page.

http://erdani.com/index.php?cID=109

Timon Gehr <timon.gehr gmx.ch> writes:

On 01/19/2012 09:30 PM, Era Scarecrow wrote:
   Been a bit out of it for a while, but finding enough tools at my disposal I
feel I can work on/convert a project now.

   I happen to have one of the first printing books (without the name on the
cover), and although it may be worth millions in a few years, apparently
there's been enough changes that certain features are not familiar in the
discussions.

   So I need to ask since I don't see any obvious pages that describe it. What
are the changes to D2, since the book's release? What has externally changed?
(Internal implementation of features need not be mentioned if it's transparent
to the programmer and user).

The most important changes are probably:

- inout type qualifier

The type qualifier inout can be used as a wildcard to stand for any of 
mutable, const, immutable. Its meaning is automatically deduced and is 
the same throughout a certain function definition or function call.

For example:

inout(int)[] identity(inout(int)[] x){return x;}
int[] x;
immutable(int)[] y;
const(int)[] z;
static assert(is(typeof(identity(x)) == int[]));
static assert(is(typeof(identity(y)) == immutable(int)[]));
static assert(is(typeof(identity(z)) == const(int)[]));



- function local imports
void main(){
     import std.stdio;
     writeln("hello world!");
}


- new function/delegate literal syntax (coming DMD 2.058)

identifier => expression
or
(id1, id2) => expression
or
(type id1, type id2) => expression

import std.stdio, std.range, std.algorithm;
void main(){
     writeln("some odd squares:");
     writeln(map!(x=>x^^2)(filter!(x=>x&1)(iota(1,1000))));
}