https://forum.dlang.org/post/mailman.10914.1566237225.29801.digitalmars-d-le...@puremagic.com
In case someone comes across this old thread
https://dlang.org/phobos/core_int128.html
On Monday, 27 July 2015 at 18:30:06 UTC, Gary Willoughby wrote:
Where is the discussion?
This must be it
http://forum.dlang.org/thread/pflkijjjuyyhextxv...@forum.dlang.org
I'm interested in the same subject right now, and was wondering
about the same question you asked.
On Sunday, 14 June 2015 at 15:54:30 UTC, Etienne Cimon wrote:
On 2015-06-14 08:35, Robert M. Münch wrote:
Hi, just to x-check if I have the correct understanding:
fibers = look parallel, are sequential => use 1 CPU
core
threads = look parallel, are parallel => use several
CPU
Also please post a bug or enhancement issue for anything that you
think ought to be included in the standard libs that isn't.
https://d.puremagic.com/issues/
--rt
On Thursday, 5 December 2013 at 00:53:00 UTC, Phil wrote:
That function sounds great. Unfortunately I am working on
Windows so I guess I'll have to look into their API. I was
hoping for a solution available in the std but if there isn't
than there isn't. Thanks for you information!
You may
On Wednesday, 4 December 2013 at 08:38:12 UTC, qznc wrote:
You should file an issue [0] as this should actually be in
core.thread.
[0] https://d.puremagic.com/issues/enter_bug.cgi
I filed an enhancement request for the thread module.
Digging deeper, I notice that module core.sys.posix.pthr
On Wednesday, 4 December 2013 at 20:12:41 UTC, Phil wrote:
Hi guys,
I'd like to know if there is a way using the stdlib that I can
measure the number of ticks that a thread has been working. I
do mean the number of ticks that it has been ACTIVE, and not
the noTicks since its creation.
Thank
In core.thread I don't see a portable way to pin a thread to a
specific core, or at least pin the thread to whatever core it is
currently running in.
I found this solution, but it's for Windows only.
http://www.gamedev.net/blog/1140/entry-2254424-setting-thread-affinity-on-windows-in-d/
I can
On Tuesday, 19 November 2013 at 18:35:08 UTC, Jeroen Bollen wrote:
Is there a way I can call a receive method on a socket with
MSG_WAITALL as a flag? There doesn't seem to be an enum for
that.
module core.sys.posix.sys.socket;
enum : uint
{
MSG_CTRUNC = 0x08,
MSG_
On Sunday, 17 November 2013 at 21:29:03 UTC, Jonathan M Davis
wrote:
Yeah. Don't use concatenation in your format string:
Right, that concat was bothering me too. Tks for the input.
--rt
Good points, got it down to this.
void error(string a_Msg, string file = __FILE__, size_t line =
__LINE__)
{
writefln( a_Msg ~ ". In file %s on line %d.", file, line );
}
int main()
{
format("hallo").error;
format("Hallo %s.", "du da").error;
}
There should be no more template bloat,
On Saturday, 16 November 2013 at 23:55:47 UTC, Jonathan M Davis
wrote:
[...]
e.g. force the
caller to call format when creating the message rather than
supporting
variadic arguments directly in error.
- Jonathan M Davis
OK, how about this implementation?
string msg( S : string, T... )( S a
On Wednesday, 4 July 2012 at 16:55:19 UTC, Ali Çehreli wrote:
On 07/04/2012 08:25 AM, Alexsej wrote:
> On Monday, 26 March 2012 at 07:14:50 UTC, Ali Çehreli wrote:
>> // Assumes UTF-8 file
>> auto content = to!string(read("json_file"));
> Your example only works if the json file in UTF-8 (BOM),
On Sunday, 10 November 2013 at 00:08:11 UTC, Timothee Cour wrote:
[...]
I've already asked for this in the past (see email: "feature
request:
__ARGS__ for logging (cf __FILE__, __LINE__, __FUNC___):
but Jacob pointed out that AST macros would make this
un-necessary (like
wise with another prop
On Saturday, 9 November 2013 at 11:07:08 UTC, Dicebot wrote:
On Saturday, 9 November 2013 at 09:12:21 UTC, Rob T wrote:
It works except when passing a variable contained inside a
struct or class due to a missing "this" during evaluation, I'm
also worried about template bloat.
On Saturday, 9 November 2013 at 11:07:08 UTC, Dicebot wrote:
On Saturday, 9 November 2013 at 09:12:21 UTC, Rob T wrote:
It works except when passing a variable contained inside a
struct or class due to a missing "this" during evaluation, I'm
also worried about template bloat.
I have a template function called "inspect" that takes two
variables as arguments,
void inspect(T)( string symbol, T value )
{
writeln(symbol, " = ", value);
}
int y = 100;
inspect( y.stringof, y );
writes to console
y = 100
I am wondering if there's a way to pass only the variable and
On Tuesday, 16 July 2013 at 19:33:13 UTC, bearophile wrote:
The right, safe and readable way is to use std.array.empty:
if (myString.empty)
If you don't want to import functions, then test for the length:
if (string.length == 0)
Bye,
bearophile
What was the rational for empty not being bui
On Sunday, 7 July 2013 at 10:53:09 UTC, Andrey Derzhavin wrote:
Hello!
I try to create a RDM socket, but all my attempts fails by
"Unable to create socket: Socket type not supported" error.
How can I create a RDM socket using std.socket module?
Thanks.
Not all systems support RDM and/or it
On Wednesday, 12 June 2013 at 11:05:22 UTC, bearophile wrote:
Rob T:
Rather disappointing that this fails. Anyone know if this is
an expected limitation of UFCS or a bug?
Probably no one thought on this case. Why do you think it's
useful?
Bye,
bearophile
If we're to use UFCS
struct S
{
}
void f(S)
{
}
void main()
{
S s;
with (s)
{
f(); // compiler error
}
}
Rather disappointing that this fails. Anyone know if this is an
expected limitation of UFCS or a bug?
--rt
On Saturday, 1 June 2013 at 01:10:05 UTC, Shriramana Sharma wrote:
On Sat, Jun 1, 2013 at 6:02 AM, Anthony Goins
wrote:
Works for me ubuntu 64.
Do you have both versions installed?
Of course not. The later install from the distributed DEB (from
dlang.org) overwrites the earlier one by apt in
On Saturday, 1 June 2013 at 14:41:13 UTC, Shriramana Sharma wrote:
On Sat, Jun 1, 2013 at 7:57 PM, Anthony Goins
wrote:
Sometimes running ldconfig will solve wierd problems like this.
Thanks and I tried that just now but no fruit. :-(
Try a *full* removal of the deb installations (dmd and
On Thursday, 2 May 2013 at 04:27:10 UTC, evilrat wrote:
learn what? opengl is C API specification, any resource about
opengl will work, the only thing required for apply it to D is
to know D basics. but unfortunately for D itself it is really
hard to find good tutorials
I use this on-line boo
On Tuesday, 16 April 2013 at 21:09:42 UTC, gedaiu wrote:
On Monday, 15 April 2013 at 19:25:19 UTC, simendsjo wrote:
On Monday, 15 April 2013 at 17:34:07 UTC, gedaiu wrote:
Hi,
Can anyone help me to connect to mysql from D?
Thanks!
You can use Steve Teales native library. The most up-to-date
Thanks for the comments.
It seems that my best option is to avoid the built in AA's for
now. I'll take a look at the suggested alternative solutions.
One thing I'm looking for is enforced explicit additions of new
key value pairs rather than the magical method used by the built
in AA's, it's
I recall some discussion about AA's being buggy and fixing the
bugs is difficult, and that there may be future changes to how
AA's operate, for example perhaps moving it to a library solution.
So I am wondering if I should simply avoid using the built-in
AA's entirely at this time, and instead
On Tuesday, 12 March 2013 at 21:02:20 UTC, Benjamin Thaut wrote:
This is not possible as different kinds of GCs need to generate
different runtime data at compile time. The current GC for
example does not need any runtime data (other then what the D
typeinfo system already provides) but the per
On Tuesday, 12 March 2013 at 20:29:58 UTC, Marco Leise wrote:
Am Tue, 12 Mar 2013 21:08:01 +0100
schrieb "Rob T" :
It should be a plugin so that components like an alternate GC
can be swapped in and out easily. I hope once shared lib
support becomes available we'll fina
On Tuesday, 12 March 2013 at 14:21:06 UTC, bearophile wrote:
Benjamin Thaut:
Thats not correct. Rainer Schuetze has finished it and is
using it for VisualD. You can get a version of druntime which
the percise GC from his github branch
https://github.com/rainers/dmd
I am glad to be wrong :-)
On Monday, 11 March 2013 at 03:46:22 UTC, Ali Çehreli wrote:
On 03/10/2013 08:10 PM, Rob T wrote:
>>>
>>> Lippincott functions avoid macros and make it more explicit
that the
>>> entire body is inside a try block.
>>>
>>> Ali
>>
>
> Oops,
Lippincott functions avoid macros and make it more explicit
that the entire body is inside a try block.
Ali
Oops, I think you were showing me an example where it could be
used.
--rt
On Friday, 8 March 2013 at 22:10:19 UTC, Ali Çehreli wrote:
I heard about this idiom for the first time in Jon Kalb's talk.
The name appears in his slides:
http://exceptionsafecode.com/
Very smart way of writing a single function that catches many
different types of exceptions; does special
On Friday, 8 March 2013 at 21:10:15 UTC, Andrej Mitrovic wrote:
On 3/8/13, Rob T wrote:
So this is more efficient or has some other advantages than
using
typeid?
Benchmark! :)
Also you might find this useful some day:
http://wiki.dlang.org/Dispatching_an_object_based_on_its_dynamic_type
On Monday, 11 March 2013 at 00:26:25 UTC, anonymous wrote:
On Monday, 11 March 2013 at 00:10:46 UTC, Rob T wrote:
template NDimensionalArrayType(T,alias size)
I'm wondering what "alias size" does? I can't find that form
documented anywhere, but it seems to be valid
template NDimensionalArrayType(T,alias size)
I'm wondering what "alias size" does? I can't find that form
documented anywhere, but it seems to be valid.
Thanks.
--rt
template NDimensionalArrayType(T,alias size)
I think your use of "alias size" is incorrect.
See http://dlang.org/declaration.html
--rt
On Friday, 8 March 2013 at 20:46:42 UTC, Jonathan M Davis wrote:
On Friday, March 08, 2013 11:56:12 H. S. Teoh wrote:
On Fri, Mar 08, 2013 at 08:52:21PM +0100, Rob T wrote:
> On Friday, 8 March 2013 at 06:05:02 UTC, Maxim Fomin wrote:
> > catch (Exception e) {
> >
> > if
On Friday, 8 March 2013 at 20:32:23 UTC, Jonathan M Davis wrote:
On Friday, March 08, 2013 20:16:13 Rob T wrote:
If you know of a better way to implement an exception handler
in
D, then I'd like to know about it. For example I do know that
D's
system allows you to insert callback
On Friday, 8 March 2013 at 19:58:10 UTC, H. S. Teoh wrote:
On Fri, Mar 08, 2013 at 08:52:21PM +0100, Rob T wrote:
On Friday, 8 March 2013 at 06:05:02 UTC, Maxim Fomin wrote:
>catch (Exception e) {
>if (typeid(e) == typeid(myException1))
>throw e; // may be downc
On Friday, 8 March 2013 at 19:39:47 UTC, bearophile wrote:
Currently this code compiles:
[...]
Nice edge case to test the compiler with.
Definitely looks like a bug. It should not compile given the
nothrow attrib.
If it was throwable, what to do about throwing a null reference
is an intere
On Friday, 8 March 2013 at 06:05:02 UTC, Maxim Fomin wrote:
catch (Exception e) {
if (typeid(e) == typeid(myException1))
throw e; // may be downcasted, if necessary
// to work with specific fields
}
Isn't it better to check identity in this way?
On Friday, 8 March 2013 at 17:40:38 UTC, Ali Çehreli wrote:
On 03/08/2013 12:39 AM, Rob T wrote:
> In C++ you can do this
>
> std::exception Trace()
> {
> try
> {
> // key item missing from D
> throw; // <= rethrow last exception
This idiom is know as a Lippincott
On Friday, 8 March 2013 at 18:56:38 UTC, Andrej Mitrovic wrote:
On 3/8/13, Jonathan M Davis wrote:
In both cases, you're telling it to catch everything.
Also, catch points should be rare, especially the ones which
catch
base types like Exception or even Error or Throwable. The
problem is
no
On Friday, 8 March 2013 at 18:49:53 UTC, Jonathan M Davis wrote:
Except that the C++ one is just as pointless. In both cases,
you're telling it
to catch everything. It's just that syntax is slightly
different, because D
doesn't allow you to throw without an explicit variable. And
it's only a
ha
On Friday, 8 March 2013 at 09:01:29 UTC, Jacob Carlborg wrote:
On 2013-03-08 08:34, Rob T wrote:
One more thing, we finally got __FUNCTION__ (and more) added
to MASTER
so that's another missing item that was sorely missed. Now we
can easily
log what functions are catching and thr
On Friday, 8 March 2013 at 09:07:59 UTC, Chris Cain wrote:
On Friday, 8 March 2013 at 09:01:14 UTC, Jonathan M Davis wrote:
If that's the case, I really don't see what the problem is.
It's just a few
characters difference.
To be honest, the way I look at it, D does this _better_.
"throw;" lo
On Friday, 8 March 2013 at 07:58:42 UTC, Jonathan M Davis wrote:
[...]
Then you can clearly do something here in C++ that I don't
understand, because
I have absolutely no idea how you could do anything the
exception if you did
catch(...), because there's no variable to work with.
Check this
One more thing, we finally got __FUNCTION__ (and more) added to
MASTER so that's another missing item that was sorely missed. Now
we can easily log what functions are catching and throwing
exceptions, and more.
The big question is if Throwable will be expanded to
automatically capture the fun
On Friday, 8 March 2013 at 06:09:48 UTC, Jonathan M Davis wrote:
[...]
C++ has no exception capabilities that D doesn't have.
Except that D cannot rethrow without explicitly catching. That
may seem like a very minor item, but as I explained in my last
post, the extra boiler plate coding can a
On Friday, 8 March 2013 at 06:05:02 UTC, Maxim Fomin wrote:
Actually no.
class myException1 : Exception { this() { super("1"); } }
class myException2 : Exception { this() { super("2"); } }
[...]
Thanks! That solves 99% of my problem. I wasn't aware that I
could check the derived type from a
On Friday, 8 March 2013 at 01:56:45 UTC, Andrej Mitrovic wrote:
On 3/8/13, Rob T wrote:
In C++, I rethrow an exception without explicitly catching it
catch(...)
{
throw;
}
Anyone know of a way to do the same thing in D?
catch
{
// rethrow?
}
The only way:
try { }
catch
In C++, I rethrow an exception without explicitly catching it
catch(...)
{
throw;
}
Anyone know of a way to do the same thing in D?
catch
{
// rethrow?
}
--rt
On Monday, 4 March 2013 at 11:04:46 UTC, Joseph Rushton Wakeling
wrote:
On 03/04/2013 09:58 AM, Andrea Fontana wrote:
Maybe you can try to connect an external hardware device (e.g.
arduino) and read
some params from real world... :)
Yes, there are nice options here ... :-)
However, to re-foc
On Saturday, 2 March 2013 at 17:40:58 UTC, Joseph Rushton
Wakeling wrote:
Hello all,
Can anyone advise on the theoretical basis for the
unpredictableSeed method in std.random? I've tried googling
around for the theory of good thread-safe seed generation
methods but haven't really found anyth
On Saturday, 2 March 2013 at 03:59:59 UTC, H. S. Teoh wrote:
On Sat, Mar 02, 2013 at 04:17:10AM +0100, Rob T wrote:
In my case, the problem had to do with the order in which I was
linking my static libs, simply changing the order resolved the
undefined references. Turns out it's a c
In my case, the problem had to do with the order in which I was
linking my static libs, simply changing the order resolved the
undefined references. Turns out it's a common problem when
working with static libs and it's unrelated to D.
--rt
On Monday, 25 February 2013 at 16:32:50 UTC, js.mdnq wrote:
We have __FILE__ and __LINE__. Is there a __FUNCTION__ that
gives the current function name? This helps with errors.
As was previously stated there's a pending pull request that
properly implements __FUNCTION__ and more.
If you can'
On Tuesday, 4 September 2012 at 22:46:00 UTC, Ivan Agafonov wrote:
I have my library module:
module mylib.vector;
// alias Vector!(float, 4) Vector4f;
struct Vector(T, uint size)
{
T[size] array = 0;
...
}
One more thing about this. If I leave in the alias in the same
module where the template is defined, and also re-define the same
alias in the other modules that make use out of it, the libraries
will compile OK, but I'll get linking errors when I try to build
an executable and link in the libs.
On Thursday, 14 February 2013 at 19:56:33 UTC, Namespace wrote:
There are discussions for such thing for almost a year - but
nothing has changed so far.
I think its finally on the priority radar, but there's still
other things in more dire need to be resolved first, like
@property and lack
On Thursday, 14 February 2013 at 19:31:36 UTC, Steven
Schveighoffer wrote:
On Thu, 14 Feb 2013 13:45:30 -0500, Rob T
wrote:
When I look at the std.container source code, it seems that
the payload element is passed by value multiple times
unnecessarily, so to minimize copy construction
When I look at the std.container source code, it seems that the
payload element is passed by value multiple times unnecessarily,
so to minimize copy construction you'll have to implement element
as a class and implement a dup function for it.
I expect performance will increase substantially ev
On Thursday, 14 February 2013 at 06:56:38 UTC, monarch_dodra
wrote:
On Wednesday, 13 February 2013 at 23:22:03 UTC, Ivan Kazmenko
wrote:
Hi!
-
Ivan Kazmenko.
Keep in mind that C++ and D have very different philosophies
regarding copy construction.
C++ has "strong ownership", so for exam
On Thursday, 14 February 2013 at 00:25:15 UTC, FG wrote:
On 2013-02-14 01:09, Rob T wrote:
You can check if disabling the GC just before the insert
process improves the
performance. You may see 3x performance improvement. Disabling
is safe provided
you re-enable, this can be done reliably with
You can check if disabling the GC just before the insert process
improves the performance. You may see 3x performance improvement.
Disabling is safe provided you re-enable, this can be done
reliably with scope(exit) or something similar.
import core.memory;
// ...
void main ()
{
aut
Well technically it was that much faster because it did optimize
away the useless calcOn Tuesday, 12 February 2013 at 23:31:17
UTC, FG wrote:
On 2013-02-13 00:06, Sparsh Mittal wrote:
I had a look, but first had to make juliaValue global,
because g++ had
optimized all the calculations away.
On Thursday, 24 January 2013 at 22:49:33 UTC, Andrej Mitrovic
wrote:
On 1/24/13, Philippe Sigaud wrote:
IIRC, you can use __traits(getOverloads, mytype.__ctor) to get
all
constructor overloads.
See:
http://dlang.org/traits.html#getOverloads
I used this in conjunction with __traits(getMember,
On Thursday, 24 January 2013 at 18:41:31 UTC, mist wrote:
You can use "magic" functions __ctor and __dtor which actually
serve as constructor and destructor implementations behind the
scene.
Example and proof-of-concept: http://dpaste.1azy.net/fd924332
Have no idea if it is explicitly defined
There may be more than one "this", so you'll have to specify the
args for each specific constructor manually.
Disclaimer: Someone else may have a better solution as I'm not
that much of an expert in this area.
This sample may point you in the right direction ...
import std.typetuple;
struct
On Thursday, 24 January 2013 at 12:56:03 UTC, Matthew Caron wrote:
This is probably a question for Walter, but maybe others know.
Of all of the differences between C and D, the one which I have
the most difficulty adapting to is null being lowercase. Does
anyone know why this decision was made
I solved the problem by creating my own version of UnixAddress.
The existing implementation needs some work. I'll filed a bug
report.
http://d.puremagic.com/issues/show_bug.cgi?id=9384
--rt
On Thursday, 24 January 2013 at 06:47:41 UTC, Rob T wrote:
I'm using Linux, which supports unix domain sockets, but when I
try to use UnixAddress it's not available.
Anyone know why?
import std.socket;
int main()
{
Address UnixAddr = new UnixAddress( "path" );
I'm using Linux, which supports unix domain sockets, but when I
try to use UnixAddress it's not available.
Anyone know why?
import std.socket;
int main()
{
Address UnixAddr = new UnixAddress( "path" ); // <- compile
error
return(0);
}
Error: undefined identifier UnixAddress
--rt
On Friday, 18 January 2013 at 04:46:46 UTC, Andrej Mitrovic wrote:
On 1/18/13, Rob T wrote:
however I read somewhere that it pretty much does nothing but
strip out the comments because it needs the full source code
for
a inlining, CTFE, and templates.
There was a recent pull that
On Friday, 18 January 2013 at 17:02:51 UTC, Jordi Sayol wrote:
Is there a way to use a function from a static D library
without importing their D sources nor their DI interface?
Yes you should be able to do it, but not everything can be
imported without the source code, for example function te
On Friday, 18 January 2013 at 07:34:35 UTC, Jacob Carlborg wrote:
You cannot both have CTFE/inlining/templates and hide the
source code. It's the same as in C++.
Yes I am aware of that limitation, nothing can be done except
lose the flexibility of templates and so forth, or keep it and
expo
On Friday, 18 January 2013 at 02:08:46 UTC, Andrej Mitrovic wrote:
The other way is to use D interface files, which the compiler
can
automatically generate for you if you pass the -H switch. Also
use the
-op switch if you're generating multiple files at once, which
will
preserve directory path
On Friday, 18 January 2013 at 01:07:05 UTC, Justin Whear wrote:
You can use "extern(D)" or simply "extern"; this is described
here:
http://dlang.org/attribute.html#linkage
Justin
So there is an extern (D), excellent! Slightly embarrassed I
didn't find this for myself.
--rt
The usual way to link in D libs into D code is to include the
required D module source files, but that gives away all of the
source code which in some instances is not possible to do (eg
legal reasons). The other way is to create a c-style API using
extern (C), but that means translating some s
On Thursday, 17 January 2013 at 07:17:57 UTC, Jonathan M Davis
wrote:
I'd still like to break it up a bit, but I'm not going to do it
unless some
variant of DIP15 or DIP16 is implemented so that it can be done
without
breaking any code. So, it probably won't be broken up any time
soon. It's not
On Thursday, 17 January 2013 at 06:26:21 UTC, Jonathan M Davis
wrote:
On Thursday, January 17, 2013 07:15:14 Rob T wrote:
On Wednesday, 16 January 2013 at 13:07:48 UTC, n00b wrote:
> Hello, I'm kinda ashamed to ask that here, but std.datetime
> documentation is so complex...
You
On Wednesday, 16 January 2013 at 13:07:48 UTC, n00b wrote:
Hello, I'm kinda ashamed to ask that here, but std.datetime
documentation is so complex...
You'll likely have a much easier time reading this.
http://vibed.org/temp/d-programming-language.org/phobos/std/datetime.html
Those pages are e
On Tuesday, 18 December 2012 at 13:47:43 UTC, Mike Parker wrote:
I *think* I've got it sorted. If you try again, it should work.
I tried it again just now and it worked. Thanks!
--rt
On Monday, 17 December 2012 at 04:40:39 UTC, Mike Parker wrote:
First, please take all Derelict trouble-shooting problems to
the Derelict forums[1].
I'm posting here because I was unable to register with the
derelict forum.
I filled out the registration form and press the register button,
t
On Saturday, 1 December 2012 at 21:33:15 UTC, js.mdnq wrote:
By full signature overloading I assuming you also the return
type?
Correct.
I don't see why it is so complicated in any case since a return
type can just be seen as a ref argument:
int myfunc()
is basically the same as
void
On Saturday, 1 December 2012 at 18:36:35 UTC, Dan wrote:
In the thread on compiling DSSS and build tools someone
mentioned a format for initializing environment data of a
struct:
Environment env = {
tests: true,
verbose: true,
importDirs: ["../deimos"]
}
A followup co
On Saturday, 1 December 2012 at 19:32:27 UTC, bearophile wrote:
I don't know the rationale. There are tons of things I don't
know the rationale of, despite my efforts to learn.
The normal way to write a struct literal in D is this, that
works in most cases:
auto foo = MyStruct(42, 'a');
A
On Friday, 30 November 2012 at 23:11:28 UTC, js.mdnq wrote:
I've seen that, how does it work?
struct A{
Sometype val1;
int val2;
alias val1 this;
alias val2 this; //???
}
How can A act both as Sometype and int? (at least without major
issues) Does the compiler try to choose the appropria
On Friday, 30 November 2012 at 14:14:36 UTC, js.mdnq wrote:
On Friday, 30 November 2012 at 14:02:42 UTC, Andrej Mitrovic
wrote:
On 11/30/12, js.mdnq wrote:
alias t this;
This should explain: http://dlang.org/class.html#AliasThis
Thanks, I'm sure I saw that at some point but I guess it just
On Sunday, 25 November 2012 at 16:42:03 UTC, Maxim Fomin wrote:
Recently I saw a major pull affecting this behavior, so in
2.061 the situation may be changed (I haven't bother to figure
yet). In practice this makes a tricky thing to understand what
S() is and creates a problem when you e.x. hea
On Saturday, 24 November 2012 at 20:34:39 UTC, comco wrote:
I have the following snippet:
struct A(alias Method)
{
string s;
this(Method method) {
method(s); // 5
}
}
struct B
{
this(int i) { }
void opCall(string s) { }
}
void main() {
A!B(B(0));
}
This code
On Saturday, 24 November 2012 at 22:01:32 UTC, Stian wrote:
Is the compiler sophisticated enough that is it able to avoid
the copying. For instance, if i have a struct Matrix4x4 a =
node.getTransformation() and use a for whatever, but never
alter it, will it be able to avoid the copy? What if i
On Saturday, 24 November 2012 at 20:47:17 UTC, Era Scarecrow
wrote:
This kind of behavior *really* needs to be documented in
precise detail, it's rather critical to know.
It IS documented. TDPL - pg. 248
[quote]
Thanks for pointing out where the postblit stuff is documented.
When I first st
On Monday, 19 November 2012 at 12:10:32 UTC, Dan wrote:
[...]
provide it - you do not need an opAssign at all, as your
postblit will be called. I think this is a step up over C++.
The example below prints:
--
Begin assign
postblit A
End assign
--
On Friday, 23 November 2012 at 14:08:05 UTC, Jun wrote:
I've never seen any documentation about this behaviour. I think
it's a good feature, but I'm a bit confused.
More info here
http://www.drdobbs.com/cpp/uniform-function-call-syntax/232700394
UFCS is relatively new and has not been included
On Monday, 19 November 2012 at 09:37:35 UTC, Jonathan M Davis
wrote:
On Monday, November 19, 2012 10:29:21 Rob T wrote:
the D language specification (which is currently MIA).
The online documentation _is_ the official spec, though it
definitely doesn't
have enough detail to be unambi
On Monday, 19 November 2012 at 06:32:56 UTC, Jonathan M Davis
wrote:
I'm not sure. Close certainly. But if any member variables
define an opAssign,
then the compiler probably calls them rather than doing a
simple memcpy. I'm
not sure though. If it does, then a memcpy would not exhibit
the same
I think you've cleared things up for me.
When I define an opAssign, I'm not really overriding a default
opAssign, because there is none, instead I'm overriding the
default behavior which is to perform a memcopy-like operation.
So if I defined an opAssign function, but for some odd reason I
w
I assume that when I define an opAssign, only the opAssign that I
define gets called, which means there's no blit or postblit being
called ever again.
I may be thoroughly confused at this point. Is there both a blit
and a postblit, and an optional opAssign that when specified will
override bo
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