New const/invariant/enum in 2.009!

http://www.digitalmars.com/d/1.0/changelog.html
http://ftp.digitalmars.com/dmd.1.025.zip

http://www.digitalmars.com/d/changelog.html
http://ftp.digitalmars.com/dmd.2.009.zip

Walter Bright wrote:
> New const/invariant/enum in 2.009!
> 
> http://www.digitalmars.com/d/1.0/changelog.html
> http://ftp.digitalmars.com/dmd.1.025.zip
> 
> http://www.digitalmars.com/d/changelog.html
> http://ftp.digitalmars.com/dmd.2.009.zip

Ah ha!  A new year surprise!

Happy new year, Walter.

(you are in the same time zone as me).

-JJR

Walter Bright wrote:
> New const/invariant/enum in 2.009!
> 
> http://www.digitalmars.com/d/1.0/changelog.html
> http://ftp.digitalmars.com/dmd.1.025.zip
> 
> http://www.digitalmars.com/d/changelog.html
> http://ftp.digitalmars.com/dmd.2.009.zip

Nice CTFE fixes, too. Thanks, Walter.

Happy New Year!

Don.

Walter Bright wrote:

> New const/invariant/enum in 2.009!
> 
> http://www.digitalmars.com/d/1.0/changelog.html http://ftp.digitalmars.com/dmd.1.025.zip
> 
> http://www.digitalmars.com/d/changelog.html http://ftp.digitalmars.com/dmd.2.009.zip


There is something wrong with linux libphobos2 library.

I get linker errors for simplest program:
--------------
import std.stdio;

void main() {
    writefln("Just a test!");
}
-------------

Version 2.008 works just right.


marcin@genesis:~/Programy/D/TestCases/src$ dmd quicktest.d
gcc quicktest.o -o
quicktest -m32 -Xlinker -L/usr/local/lib -lphobos2 -lpthread -lm
quicktest.o: In function
`_D3std8bitmanip102__T15createAccessorsVAyaa20_6672616374696f6e6578706f6e656e747369676eTkVyG8aa8_6672616374696f6eVi23Vk0Z15createAccessorsFZAya':
quicktest.d
(.text._D3std8bitmanip102__T15createAccessorsVAyaa20_6672616374696f6e6578706f6e656e747369676eTkVyG8aa8_6672616374696f6eVi23Vk0Z15createAccessorsFZAya+0x27):
undefined reference to `_D3std8bitmanip11toStringSfxFmZAya'
quicktest.d
(.text._D3std8bitmanip102__T15createAccessorsVAyaa20_6672616374696f6e6578706f6e656e747369676eTkVyG8aa8_6672616374696f6eVi23Vk0Z15createAccessorsFZAya+0x41):
undefined reference to `_D3std8bitmanip11toStringSfxFmZAya'
quicktest.d
(.text._D3std8bitmanip102__T15createAccessorsVAyaa20_6672616374696f6e6578706f6e656e747369676eTkVyG8aa8_6672616374696f6eVi23Vk0Z15createAccessorsFZAya+0xa3):
undefined reference to `_D3std8bitmanip11toStringSfxFmZAya'
quicktest.d
(.text._D3std8bitmanip102__T15createAccessorsVAyaa20_6672616374696f6e6578706f6e656e747369676eTkVyG8aa8_6672616374696f6eVi23Vk0Z15createAccessorsFZAya+0xba):
undefined reference to `_D3std8bitmanip11toStringSfxFmZAya'
quicktest.d
(.text._D3std8bitmanip102__T15createAccessorsVAyaa20_6672616374696f6e6578706f6e656e747369676eTkVyG8aa8_6672616374696f6eVi23Vk0Z15createAccessorsFZAya+0xf8):
undefined reference to `_D3std8bitmanip11toStringSfxFmZAya'
quicktest.o:quicktest.d
(.text._D3std8bitmanip102__T15createAccessorsVAyaa20_6672616374696f6e6578706f6e656e747369676eThVyG8aa8_6578706f6e656e74Vi8Vk23Z15createAccessorsFZAya+0x27):
more undefined references to `_D3std8bitmanip11toStringSfxFmZAya' follow
collect2: ld returned 1 exit status
--- errorlevel 1


-- 
Regards
Marcin Kuszczak (Aarti_pl)
-------------------------------------
Ask me why I believe in Jesus - http://www.zapytajmnie.com (en/pl)
Doost (port of few Boost libraries) - http://www.dsource.org/projects/doost/
-------------------------------------

Walter Bright wrote:
> New const/invariant/enum in 2.009!
> 
> http://www.digitalmars.com/d/1.0/changelog.html
> http://ftp.digitalmars.com/dmd.1.025.zip
> 
> http://www.digitalmars.com/d/changelog.html
> http://ftp.digitalmars.com/dmd.2.009.zip

Happy new year, Walter!

This update caused a massive breakage to my program and I don't have any idea how to observe the new const/invariant rules.

Codes using const class or struct are broken:
--------------------------------------------

import std.conv, std.stdio;

class C {
    private int i;
    this(int i) { this.i = i; }
    const string toString() { return to!(string)(this.i); }
}

void main() {
    const(C) c;
    c = new C(1); // error
    writeln(c);
}

--------------------------------------------

Please help me upgrade to 2.009!
Thank you.

Marcin Kuszczak wrote:
> There is something wrong with linux libphobos2 library.

I just uploaded it again. I think I inadvertently posted the old one.

のしいか (noshiika) wrote:

Replace:

>     const(C) c;
>     c = new C(1); // error

with:

	const(C) c = new C(1);

"Walter Bright" <newshound1@digitalmars.com> wrote in message news:fle8mi$1j24$2@digitalmars.com...
> ???? (noshiika) wrote:
>
> Replace:
>
>>     const(C) c;
>>     c = new C(1); // error
>
> with:
>
> const(C) c = new C(1);

Solve:

const(C) c;

if(someCondition)
    c = new C(1);
else
    c = new C(2);

Jarrett Billingsley wrote:
> "Walter Bright" <newshound1@digitalmars.com> wrote in message news:fle8mi$1j24$2@digitalmars.com...
>> ???? (noshiika) wrote:
>>
>> Replace:
>>
>>>     const(C) c;
>>>     c = new C(1); // error
>> with:
>>
>> const(C) c = new C(1);
> 
> Solve:
> 
> const(C) c;
> 
> if(someCondition)
>     c = new C(1);
> else
>     c = new C(2);
> 
	Untested:

const(C) c =  (delegate const(C) () {
   if (someCondition)
      return new C(1);
   else
      return new C(2);
})();

		Jerome
- --
+------------------------- Jerome M. BERGER ---------------------+
|    mailto:jeberger@free.fr      | ICQ:    238062172            |
|    http://jeberger.free.fr/     | Jabber: jeberger@jabber.fr   |
+---------------------------------+------------------------------+

""Jérôme M. Berger"" <jeberger@free.fr> wrote in message news:flea9n$1n0r$1@digitalmars.com...

> Untested:
>
> const(C) c =  (delegate const(C) () {
>   if (someCondition)
>      return new C(1);
>   else
>      return new C(2);
> })();

I'm crying.