I can't figure out how to do the following C++ code in D:
int arr[] = { 1, 3, 5, 7, 11 };
template typename... T
void foo(T... values) { }
template typename... T
void bar(T... values)
{
foo((arr[values] * 10)...);
}
int main()
{
bar(1, 3, 4); /* calls foo(arr[1] * 10,
Although... now that I think about it, this should really be done
as a language feature, and not through some inefficient CTFE
trick. So, I should really be able to just write this:
int[5] arr = [ 1, 3, 5, 7, 11 ];
void foo(T...)(T values) { }
void bar(T...)(T values)
{
foo((arr[values]
On 06/16/2013 11:19 PM, TommiT wrote:
I can't figure out how to do the following C++ code in D:
int arr[] = { 1, 3, 5, 7, 11 };
template typename... T
void foo(T... values) { }
template typename... T
void bar(T... values)
{
foo((arr[values] * 10)...);
}
int main()
{
On Sunday, 16 June 2013 at 16:44:59 UTC, new wrote:
hi,
are there any 64bit windows header files availabe?
You can use win api directly.
32/64 bit handled by defines, __WIN32__ etc.
FucnA - for 32 bit, FuncW - for 64 bit.
In D: version(...){ ... }
On Monday, 17 June 2013 at 07:46:46 UTC, PewPew wrote:
32/64 bit handled by defines, __WIN32__ etc.
FucnA - for 32 bit, FuncW - for 64 bit.
This is wrong. The *A functions deal with ascii strings, whereas
the *W functions deal with unicode strings. Functions that
neither return nor accept
thank you all for your help.
On Sun, 16 Jun 2013 16:27:27 +0100, Gary Willoughby d...@kalekold.net
wrote:
I'm writing a little program in D to perform some database operations
and have a small question about design.
Part of my program watches a log file for changes and this involves code
which is wrapped up in a
On Monday, 17 June 2013 at 07:20:23 UTC, Ali Çehreli wrote:
The following does not answer the question of expanding but at
least foo() receives [30, 70, 110] :)
import std.stdio;
import std.algorithm;
import std.array;
import std.range;
int[] arr = [ 1, 3, 5, 7, 11 ];
void foo(T)(T[]
Anyone got an example on how to spawn a thread using a class
method?
I want to wrap behaviour in a class and launch one of its methods
using a thread. Once the method is running i want to interact
with it from the main program by calling other methods which send
the thread messages.
I'm
On 06/17/13 11:32, TommiT wrote:
On Monday, 17 June 2013 at 07:20:23 UTC, Ali Çehreli wrote:
The following does not answer the question of expanding but at least foo()
receives [30, 70, 110] :)
import std.stdio;
import std.algorithm;
import std.array;
import std.range;
int[] arr = [ 1,
On Monday, 17 June 2013 at 11:15:24 UTC, Artur Skawina wrote:
On 06/17/13 11:32, TommiT wrote:
On Monday, 17 June 2013 at 07:20:23 UTC, Ali Çehreli wrote:
The following does not answer the question of expanding but
at least foo() receives [30, 70, 110] :)
import std.stdio;
import
On 06/17/13 13:23, TommiT wrote:
On Monday, 17 June 2013 at 11:15:24 UTC, Artur Skawina wrote:
void bar(T...)(T values) {
T tmp;
foreach (i, ref v; values)
tmp[i] = arr[v]*10;
foo(tmp);
}
Cool, I didn't know that you could create multiple variables like
On Monday, 17 June 2013 at 12:21:31 UTC, Artur Skawina wrote:
A more correct, but a bit less readable version (the types of
'values' and 'arr'
elements do not have to match) would be:
void bar(T...)(T values) {
static if (T.length) {
NTup!(T.length, typeof(arr[T[0].init]))
I've copied the source code from vibe.d's mongodb example into an
Eclipse DDT project, and I can't seem to get it to compile, even
though I *think* I've made the build options resemble what vibe
uses to build.
build.rf:
-odbin
-ofbin\TestProg.exe
-Isrc
-IC:\D\vibe.d\source
On 06/17/13 14:57, TommiT wrote:
On Monday, 17 June 2013 at 12:21:31 UTC, Artur Skawina wrote:
A more correct, but a bit less readable version (the types of 'values' and
'arr'
elements do not have to match) would be:
void bar(T...)(T values) {
static if (T.length) {
Artur Skawina:
Yes, this is not as concise as '...' would be. But, with a bit
more tuple support in the language, the '.tuple' part wouldn't
be
necessary,
Implicit things are dangerous in languages.
.tuple can also be written [].
Bye,
bearophile
Hi all,
A recent Phobos pull request got critiqued over some stylistic aspects -- which
was obviously disappointing as I thought I'd learned those guidelines fairly
well.
Just to make sure, are the rules at http://dlang.org/dstyle.html considered to
be the ones to follow -- and up to date?
On 06/17/2013 02:32 AM, TommiT wrote:
On Monday, 17 June 2013 at 07:20:23 UTC, Ali Çehreli wrote:
The following does not answer the question of expanding but at least
foo() receives [30, 70, 110] :)
import std.stdio;
import std.algorithm;
import std.array;
import std.range;
int[] arr
Please ignore my comments because they are bike-shedding. I am not sure
about Phobos coding guidelines.
On 06/17/2013 09:13 AM, Joseph Rushton Wakeling wrote:
* Space after if -- e.g. if (x 0) not if(x 0). This isn't
cited, and in
fact the example given (at the end of the page)
On Monday, June 17, 2013 17:13:07 Joseph Rushton Wakeling wrote:
So, have I missed something in a style guide in a different location, or
have these rules simply been adopted by custom without making it into
official guidelines? If the latter, should I make a pull request for the
website? :-)
On Sunday, 16 June 2013 at 21:37:16 UTC, Namespace wrote:
It seems that does what I want. The result is the same as with
the current 'delete' implementation.
void Delete(T)(ref T var) {
static if (is(T == struct) is(typeof(var.__dtor)))
var.__dtor();
On Monday, June 17, 2013 18:46:29 Namespace wrote:
On Sunday, 16 June 2013 at 21:37:16 UTC, Namespace wrote:
It seems that does what I want. The result is the same as with
the current 'delete' implementation.
void Delete(T)(ref T var) {
static if (is(T == struct)
On Sun, 16 Jun 2013 17:37:15 -0400, Namespace rswhi...@googlemail.com
wrote:
But if I call 'destroy' before I call GC.free, it does not work correct.
Destroy puts anything back into it's initial state. So for anything that
is a pointer, destroy will set it to null! Then calling GC free
On 06/17/2013 03:22 AM, Gary Willoughby wrote:
Anyone got an example on how to spawn a thread using a class method?
I want to wrap behaviour in a class and launch one of its methods using
a thread. Once the method is running i want to interact with it from the
main program by calling other
On 06/17/2013 04:44 AM, Alex Horvat wrote:
On Sunday, 16 June 2013 at 18:22:47 UTC, Mike Wey wrote:
On 06/13/2013 06:14 AM, Alex Horvat wrote:
On Wednesday, 12 June 2013 at 21:44:55 UTC, Mike Wey wrote:
On 06/11/2013 07:55 PM, Alex Horvat wrote:
On Tuesday, 11 June 2013 at 17:41:59 UTC, Mike
Fibers don't actually execute asynchronously. They represent an alternate
execution context (code and stack) but are executed by the thread that calls
them, and control is returned when they either yield or complete. This video
is a good introduction to fibers:
http://vimeo.com/1873969
On
On Jun 13, 2013, at 2:22 AM, Marco Leise marco.le...@gmx.de wrote:
Here is an excerpt from a stack trace I got while profiling
with OProfile:
#0 sem_wait () from /lib64/libpthread.so.0
#1 thread_suspendAll () at core/thread.d:2471
#2 gc.gcx.Gcx.fullcollect() (this=...) at gc/gcx.d:2427
On Jun 14, 2013, at 2:49 AM, Gary Willoughby d...@kalekold.net wrote:
In fact i have the same problem reading files too. It only reads files up to
a certain amount of bytes then crashes in the same manner explained above.
Again this only happens when the program runs as a daemon.
Run as a
On 06/17/2013 05:48 PM, Jonathan M Davis wrote:
What's on the website is correct. Those are all the rules that are required
for Phobos as a whole, and if you were creating a new module, you wouldn't
have had any such issues. The problem is that we try and keep the style
within
modules
On 06/17/2013 05:36 PM, Ali Çehreli wrote:
I want that space. It is very common in most C++ guidelines as well.
Any particular reason? It's not something that had ever occurred to me as being
important one way or the other.
Yes, curly brackets are very helpful in readability even when there
On Monday, 17 June 2013 at 17:52:38 UTC, Mike Wey wrote:
On 06/17/2013 04:44 AM, Alex Horvat wrote:
On Sunday, 16 June 2013 at 18:22:47 UTC, Mike Wey wrote:
On 06/13/2013 06:14 AM, Alex Horvat wrote:
On Wednesday, 12 June 2013 at 21:44:55 UTC, Mike Wey wrote:
On 06/11/2013 07:55 PM, Alex
On Monday, 17 June 2013 at 13:15:35 UTC, Josh wrote:
I've copied the source code from vibe.d's mongodb example into
an Eclipse DDT project, and I can't seem to get it to compile,
even though I *think* I've made the build options resemble what
vibe uses to build.
build.rf:
-odbin
On 06/17/2013 12:09 PM, Joseph Rushton Wakeling wrote:
On 06/17/2013 05:36 PM, Ali Çehreli wrote:
I want that space. It is very common in most C++ guidelines as well.
Any particular reason? It's not something that had ever occurred to
me as being
important one way or the other.
I have
On Mon, Jun 17, 2013 at 12:58:08PM -0700, Ali Çehreli wrote:
On 06/17/2013 12:09 PM, Joseph Rushton Wakeling wrote:
On 06/17/2013 05:36 PM, Ali Çehreli wrote:
I want that space. It is very common in most C++ guidelines as well.
Any particular reason? It's not something that had ever
On 06/17/2013 08:58 PM, Ali Çehreli wrote:
I have no idea why that style have evolved but I like it. :) The reason may be
to distinguish from function calls:
foo(expr)
if (expr)
I can't think anything else.
Makes sense to me, and I do like these kinds of visual distinction. :-)
On 06/17/13 16:20, bearophile wrote:
Artur Skawina:
Yes, this is not as concise as '...' would be. But, with a bit more tuple
support in the language, the '.tuple' part wouldn't be
necessary,
Implicit things are dangerous in languages.
Not sure what you mean.
A bit more tuple support
On Monday, June 17, 2013 21:14:15 Joseph Rushton Wakeling wrote:
On 06/17/2013 08:58 PM, Ali Çehreli wrote:
I have no idea why that style have evolved but I like it. :) The reason
may be
to distinguish from function calls:
foo(expr)
if (expr)
I can't think anything else.
Artur Skawina:
.tuple can also be written [].
No idea what you mean by this.
If in the code you wrote you replace the first .tuple with []
the code keeps working.
Bye,
bearophile
On 06/17/13 23:11, bearophile wrote:
Artur Skawina:
.tuple can also be written [].
No idea what you mean by this.
If in the code you wrote you replace the first .tuple with [] the code
keeps working.
It does not - I really have no idea what you mean; slicing a struct
does not (and can
Run as a daemon how?
By running the above code. All the code before opening the file
causes the program to run as a daemon.
On Monday, 17 June 2013 at 17:09:45 UTC, Steven Schveighoffer
wrote:
On Sun, 16 Jun 2013 17:37:15 -0400, Namespace
rswhi...@googlemail.com wrote:
But if I call 'destroy' before I call GC.free, it does not
work correct.
Destroy puts anything back into it's initial state. So for
anything
inside std.process it says:
// Pids are only meant to be constructed inside this module, so we make the
constructor private.
However, this makes a number of useful functions from std.process useless
unless the processes were created via one of std.process' functions.
Can we make
Hi all.
Wondering what way I'd go about this, I want to slice an array
into two arrays. First array containing every even index (i.e.
0,2,4,6,8..$)
Second slice containing every odd index (i.e. 1,3,5,7,9..$) --
be some issue with using $ depending on if orig length is odd or
even. Can work
Colin Grogan:
Reading the articles on array slicing its not clear if its
possible.
I presume Walter thinks that slicing with a stride is a not
common enough operation to put it into D. His choices on such
things are a bit arbitrary.
One way to do it:
import std.stdio, std.array,
On Monday, 17 June 2013 at 23:34:46 UTC, Colin Grogan wrote:
auto orig = [1,2,3,4,5,6,7];
auto sliceEven = orig[0..$..2];
auto sliceOdd = orig[1..$..2];
But I dont think thats possible?
Not with arrays, they must be contiguous. But you can use ranges
instead:
-
import std.stdio;
On 06/17/2013 04:34 PM, Colin Grogan wrote:
Wondering what way I'd go about this, I want to slice an array into two
arrays. First array containing every even index (i.e. 0,2,4,6,8..$)
Second slice containing every odd index (i.e. 1,3,5,7,9..$) -- be some
issue with using $ depending on if
On Saturday, 8 June 2013 at 06:31:14 UTC, Timothee Cour wrote:
Why can't we detect at compile time module ctor/dtor cycles
(instead of
runtime) ?
No idea, but I've wondered this myself too. After all imports
are a static feature and all are known at compile-time.
Andrej Mitrovic:
No idea, but I've wondered this myself too. After all imports
are a static feature and all are known at compile-time.
rdmd is used often in a situation where it knows all the modules
of a program. So it must be able to detect those cycles. It seems
an enhancement request
On Tuesday, 4 June 2013 at 14:06:29 UTC, Frank Fuente wrote:
The function is declared...
alias extern (C) FT_STATUS function(uint* lpdwVersion)
FT_GetLibraryVersion;
The calling convention is wrongly declared, it should be:
alias extern (Windows) FT_STATUS function(uint*
On Thursday, 30 May 2013 at 08:26:01 UTC, bioinfornatics wrote:
hi
Someone know if AnalyzeD could to be used from command line ?
i.e http://dconf.org/talks/rohe.html
I failed to find AnalyzeD source code
thanks
I think it's closed-source.
On Mon, Jun 10, 2013 at 10:20 AM, Steven Schveighoffer
schvei...@yahoo.comwrote:
On Sun, 09 Jun 2013 23:15:42 -0400, Timothee Cour
thelastmamm...@gmail.com wrote:
On Fri, Jun 7, 2013 at 11:41 PM, Jonathan M Davis jmdavisp...@gmx.com
wrote:
On Friday, June 07, 2013 23:23:25 Timothee Cour
On Mon, Jun 17, 2013 at 5:11 PM, bearophile bearophileh...@lycos.comwrote:
Andrej Mitrovic:
No idea, but I've wondered this myself too. After all imports are a
static feature and all are known at compile-time.
rdmd is used often in a situation where it knows all the modules of a
On Monday, 17 June 2013 at 13:59:34 UTC, Artur Skawina wrote:
Another solution would be to have the following hidden in some
lib:
struct _ForEach(alias MAP, TS...) {
NTup!(TS.length, typeof(MAP(TS[0].init))) tuple;
this(TS values) {
foreach (i, ref v; values)
Just upgraded to dmd 2.063.2 - no difference
On Monday, 17 June 2013 at 13:59:34 UTC, Artur Skawina wrote:
[..]
Your setup has a pretty serious issue with correctness though.
It's because all the types of _ForEach.tuple are the same as the
first element of TS...
import std.stdio;
template NTup(size_t N, T...)
{
static if (N 1)
On Tuesday, 18 June 2013 at 02:37:46 UTC, TommiT wrote:
It's because all the types of _ForEach.tuple are the same as
the first element of TS...
I mean... the same as the type of MAP(TS[0])
On 6/18/13, Timothee Cour thelastmamm...@gmail.com wrote:
why do the email threads keep splitting up again?
I answered through DForum, but the email thread was already split-up
(it had 0 replies). See here:
Adam D. Ruppe:
and win the code golf every time! :P
Some Rosettacode D entries are a bit compressed, but that site is
not for code golfing. It's just preferred to not write long
programs, for several reasonable reasons.
code:
http://arsdnet.net/dcode/rpc-example.d
library:
On Tuesday, 18 June 2013 at 02:02:52 UTC, Josh wrote:
I've added in wsock32.lib, the -J, and the 3 versions, and it
gives the same output. I should mention that I can compile the
examples fine with both vibe and dub by themselves, but
apparently not inside Eclipse.
Thanks for your help
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