On Saturday, 25 April 2020 at 04:11:02 UTC, Ali Çehreli wrote:
On 4/24/20 2:11 PM, Steven Schveighoffer wrote:> On 4/24/20
4:24 PM, matheus wrote:
> whomever controlled the sociomantic youtube account took down
> all the videos.
I think it's unintentional because the same thing happened to
my
On Monday, 11 November 2019 at 01:28:54 UTC, userTY wrote:
On Sunday, 10 November 2019 at 23:53:22 UTC, Vinod K Chandran
wrote:
[...]
You must use a module that has public imports.
Public imports are visible from the module that contain them
but most importantly from the module that imports t
On Tuesday, 22 October 2019 at 17:34:51 UTC, Vinod K Chandran
wrote:
Hi all,
I am new to D. But some fair experience with vb.net. I was
playing with D classes. I wrote a class in a D file.
The file name is "classFile.d"
```D
class TestClass {
[...]
What you are seeing is a linker error. Bui
On Tuesday, 22 October 2019 at 07:51:16 UTC, Arun Chandrasekaran
wrote:
On Tuesday, 22 October 2019 at 07:40:01 UTC, Prokop Hapala
wrote:
[...]
If you are building individual files, use ldc2 with
--link-defaultlib-shared flag:
arun@home-pc:/tmp$ cat a.d
void main() { import std; writeln("Ha
On Tuesday, 22 October 2019 at 07:40:01 UTC, Prokop Hapala wrote:
On Tuesday, 22 October 2019 at 07:23:46 UTC, Daniel Kozak wrote:
On Tue, Oct 22, 2019 at 8:00 AM Prokop Hapala via
Digitalmars-d-learn wrote:
I'm examining the possibility to move from Python+C/C++ to D
or
Python+D. I read
(h
On Wed, May 1, 2019 at 7:50 PM Anonymouse via Digitalmars-d-learn
wrote:
>
> Is there a way of setting the process/thread name that's neater
> than this?
>
> import core.sys.posix.pthread;
>
> extern(C) int pthread_setname_np(pthread_t, const char*);
>
> void main()
> {
> import std.string :
On Wed, May 1, 2019 at 9:18 AM Arun Chandrasekaran wrote:
>
> On Wed, May 1, 2019 at 8:15 AM Guillaume Piolat via
> Digitalmars-d-learn wrote:
> >
> > On Wednesday, 1 May 2019 at 09:51:01 UTC, Laeeth Isharc wrote:
> > >
> > > Second question. Lots of people these days start to program to
> > > s
On Wed, May 1, 2019 at 8:15 AM Guillaume Piolat via
Digitalmars-d-learn wrote:
>
> On Wednesday, 1 May 2019 at 09:51:01 UTC, Laeeth Isharc wrote:
> >
> > Second question. Lots of people these days start to program to
> > solve their problems at work but they may never have been shown
> > the basi
On Sat, Apr 27, 2019 at 2:55 AM Andre Pany via Digitalmars-d-learn
wrote:
>
> On Thursday, 25 April 2019 at 10:33:00 UTC, Vladimirs Nordholm
> wrote:
> > Hello.
> >
> > Is there a current "Best Practices" for logging in D?
> >
> > For the actual logging, I know of `std.experimental.logger`.
> > Ho
On Monday, 22 April 2019 at 19:57:11 UTC, aliak wrote:
On Monday, 22 April 2019 at 08:02:06 UTC, Arun Chandrasekaran
wrote:
What am I doing wrong here?
struct A
{
union B
{
int bb;
}
B b;
alias aa = B.bb;
}
void main()
{
A a = A();
// a.b.bb = 4; // works
On Monday, 22 April 2019 at 11:04:49 UTC, dangbinghoo wrote:
hi all,
as now we don't have the net/if.h binding, I need to do struct
ifreq binding myself, here's my code:
[...]
Looks like we both were working on the same thing, few hours
apart.
https://forum.dlang.org/post/nkbnknlgmcwaivpp
On Monday, 22 April 2019 at 14:07:11 UTC, Alex wrote:
On Monday, 22 April 2019 at 08:02:06 UTC, Arun Chandrasekaran
wrote:
What am I doing wrong here?
struct A
{
union B
{
int bb;
}
B b;
alias aa = b.bb;
}
void main()
{
A a = A();
// a.b.bb = 4; // works
What am I doing wrong here?
struct A
{
union B
{
int bb;
}
B b;
alias aa = B.bb;
}
void main()
{
A a = A();
// a.b.bb = 4; // works
a.aa = 4; // fails
}
https://run.dlang.io/is/kXaVy2
On Friday, 8 February 2019 at 04:51:08 UTC, Sudhi wrote:
On Friday, 8 February 2019 at 04:30:23 UTC, Arun Chandrasekaran
wrote:
[...]
My example code was wrong. Below is the right one.
struct Company
{
string name;
string location;
}
struct Racks
{
int number;
int location;
On Friday, 8 February 2019 at 04:13:39 UTC, Sudhi wrote:
I have a situation, where i want to modify a shared variable in
a function. Something like below
struct Company
{
string name;
string location;
}
struct Racks
{
int number;
int location;
}
struct Metadata
{
string na
A typical example would be to split the HTTP query string into an
AA.
vibe.d has req.queryString, but no convenient wrapper to access
it as an AA.
http://localhost/hello?name=abc&id=123
I've got this far.
auto arr = req.queryString.splitter('&').map!(a =>
a.splitter('='));
Thanks
On Sunday, 9 December 2018 at 03:29:27 UTC, Andrew Pennebaker
wrote:
On Monday, 3 November 2008 at 12:29:16 UTC, Simen Kjaeraas
wrote:
On Mon, 03 Nov 2008 12:33:05 +0100, Denis Koroskin
<2kor...@gmail.com> wrote:
[...]
That's not the only error here. Your template function also
calls
foo w
On Friday, 7 December 2018 at 20:28:37 UTC, Seb wrote:
On Friday, 7 December 2018 at 19:38:29 UTC, Arun Chandrasekaran
wrote:
On Friday, 7 December 2018 at 19:12:31 UTC, Seb wrote:
On Friday, 7 December 2018 at 18:51:27 UTC, Arun
Chandrasekaran wrote:
[...]
Alternatively to the answers above
On Friday, 7 December 2018 at 19:12:31 UTC, Seb wrote:
On Friday, 7 December 2018 at 18:51:27 UTC, Arun Chandrasekaran
wrote:
I'm trying to find the needle in the hay that's an array of
strings. So the second assert fails for some reason. Is this
expected? https://run.dlang.io/is/7OrZTA
```
#
On Friday, 7 December 2018 at 19:12:31 UTC, Seb wrote:
On Friday, 7 December 2018 at 18:51:27 UTC, Arun Chandrasekaran
wrote:
I'm trying to find the needle in the hay that's an array of
strings. So the second assert fails for some reason. Is this
expected? https://run.dlang.io/is/7OrZTA
```
#
On Friday, 7 December 2018 at 19:08:05 UTC, Arun Chandrasekaran
wrote:
On Friday, 7 December 2018 at 18:57:48 UTC, Dennis wrote:
On Friday, 7 December 2018 at 18:51:27 UTC, Arun
Chandrasekaran wrote:
Why is there a difference in the behavior?
Your first assert expression is looking for a stri
On Friday, 7 December 2018 at 18:57:48 UTC, Dennis wrote:
On Friday, 7 December 2018 at 18:51:27 UTC, Arun Chandrasekaran
wrote:
Why is there a difference in the behavior?
Your first assert expression is looking for a string in a
larger string, your second expression looks for hay which is
n
I'm trying to find the needle in the hay that's an array of
strings. So the second assert fails for some reason. Is this
expected? https://run.dlang.io/is/7OrZTA
```
#!/usr/bin/rdmd
void main()
{
import std.experimental.all;
string s1 = "aaa111aaa";
string s2 = "aaa222aaa";
str
I'm trying to get the current function name and apparently the
commented line errors out.
What am I doing wrong?
https://run.dlang.io/is/EGsRU2
```
#!/usr/bin/rdmd
void main()
{
import std.experimental.all;
void foo() {
// __traits(identifier, mixin(__FUNCTION__)).writeln; //
On Thursday, 6 September 2018 at 16:13:42 UTC, hridyansh thakur
wrote:
how to read a file line by line in D
std.stdio.File.byLine()
Refer the doc here:
https://dlang.org/library/std/stdio/file.by_line.html
An example from the doc:
```
import std.algorithm, std.stdio, std.string;
// Count w
On Sunday, 2 September 2018 at 12:52:11 UTC, Russel Winder wrote:
I am rewriting a C++ program in D, but need to access a C
library that has no D binding: this is a GtkD based program
which has a Pango binding, but Pango doesn't offer the
information I need, that is hidden in the underlying Fon
On Wednesday, 9 May 2018 at 15:20:12 UTC, Jonathan M Davis wrote:
On Wednesday, May 09, 2018 14:12:41 Dmitry Olshansky via
Digitalmars-d-learn wrote:
[...]
To an extent that's true, but anyone providing a library for
use by others in the D community should seriously consider
following it wit
On Tuesday, 1 May 2018 at 21:57:22 UTC, IntegratedDimensions
wrote:
Trying to curl basic stuff but std.net.curl isn't cooperating:
This is one of the reasons I hate D ;/ I've spent more time
trying to get std.net.curl to do something that just works from
the command line.
std.net.curl is not
So I was telling my colleague that D would warn on self
assignment, but found that I was wrong.
https://run.dlang.io/is/HLhtek
```
module a;
import std.stdio;
void main() {
string a;
a = a; // Can the compiler warn at this line that
there is no effect?
writeln(a);
r
On Saturday, 7 April 2018 at 23:48:36 UTC, kinke wrote:
On Saturday, 7 April 2018 at 20:33:13 UTC, Arun Chandrasekaran
wrote:
[...]
As this appears to be benchmarking mostly the
std.math.exp(float) performance - some/many basic algos in
std.math, incl. exp(), are currently using the x87 FPU
, 2018 at 8:53 PM, Arun Chandrasekaran via
Digitalmars-d-learn wrote:
[...]
Much better with mir.math.common, still a bit slower than C (even
with larger loops):
10^7 iterations using sigmoid1: 168 ms
10^7 iterations using sigmoid2: 39 ms
Also LDC optimized away the computation. So I had to
What am I doing wrong here that makes the D equivalent 2.5 times
slower than it's C equivalent?
Compilers used:
LDC2: LDC - the LLVM D compiler (1.8.0)
GCC: gcc (Ubuntu 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
11:36:39 ~/code/c/test2$ ldc2 sigmoid.d -O5 && ./sigmoid
Max deviation is 0.001664
10^
On Tuesday, 13 March 2018 at 13:59:00 UTC, Steven Schveighoffer
wrote:
On 3/12/18 10:06 PM, psychoticRabbit wrote:
[...]
OK, so I agree there are drawbacks. But these can be worked
around.
[...]
Private members still have external linkage. Is there anyway to
solve this?
On Thursday, 15 February 2018 at 06:52:15 UTC, Seb wrote:
On Thursday, 15 February 2018 at 06:43:52 UTC, Arun
Chandrasekaran wrote:
I was reading through
https://wiki.dlang.org/Access_specifiers_and_visibility#What_is_missing
[...]
DMD v2.077.1 exhibits the same behavior. Is this is already
I was reading through
https://wiki.dlang.org/Access_specifiers_and_visibility#What_is_missing
There is currently no way in D to mark symbols for internal
linkage, saying "this an implementation detail, you should not
even know this one exists". This is an important module-level
encapsulation
On Sunday, 28 January 2018 at 04:44:23 UTC, thedeemon wrote:
On Saturday, 27 January 2018 at 20:49:43 UTC, Arun
Chandrasekaran wrote:
But really I'm not sure why you want static foreach here
I was just trying to see if static foreach can be used here, but
well, you showed that it's not requi
On Saturday, 27 January 2018 at 17:54:53 UTC, thedeemon wrote:
On Saturday, 27 January 2018 at 11:19:37 UTC, Arun
Chandrasekaran wrote:
Simplified test case that still errors:
You got really close here. Here's a working version:
enum Operation {
a,
b
}
import std.traits, std.conv, st
On Saturday, 27 January 2018 at 10:49:45 UTC, Arun Chandrasekaran
wrote:
On Saturday, 27 January 2018 at 10:38:25 UTC, Nicholas Wilson
wrote:
...
[snip]
Simplified test case that still errors:
```
enum Operation {
a,
b
}
import std.traits;
import std.conv;
void main(string[] args) {
On Saturday, 27 January 2018 at 10:38:25 UTC, Nicholas Wilson
wrote:
On Saturday, 27 January 2018 at 10:28:10 UTC, Arun
Chandrasekaran wrote:
```
import std.parallelism;
auto pool = new TaskPool(options.threadCount);
foreach (_; 0 .. options.iterationCount) {
switch (options.
On Saturday, 27 January 2018 at 10:28:10 UTC, Arun Chandrasekaran
wrote:
Hi All,
Is there a way to rewrite this
[...]
Damn! The subject should've been something else.. naming is
surely hard..
Hi All,
Is there a way to rewrite this
```
import std.parallelism;
auto pool = new TaskPool(options.threadCount);
foreach (_; 0 .. options.iterationCount) {
switch (options.operation) {
case Operation.a:
pool.put(task!a(options));
break;
So dub gets into indefinite loop (let's not argue about
infinite/indefinite).
I've reported the issue a month back here
http://forum.rejectedsoftware.com/groups/rejectedsoftware.dub/thread/16888/ and recently here https://github.com/dlang/dub/issues/1345
Does anyone face the same issue? How d
On Saturday, 9 December 2017 at 19:26:26 UTC, David Nadlinger
wrote:
but "free" references don't exist in the language.
To the point! Thanks!
On Saturday, 9 December 2017 at 06:38:46 UTC, anonymous wrote:
On Saturday, 9 December 2017 at 06:15:16 UTC, Arun
Chandrasekaran wrote:
Is there a way to get the pointer or reference of an element
in Array(T)?
[...]
auto d2 = gallery[0];
auto d2 = &gallery[0];
Thanks. Just curious why
On Saturday, 9 December 2017 at 01:34:40 UTC, Arun Chandrasekaran
wrote:
So I tried the same on Haswell processor with LDC 1.6.0 and it
crashes
```
=== Starting D version ===
Took 1 sec, 107 ms, and 383 μs to load 100 items. Gonna
search in parallel...
*** Error in `./dmain-ldc': double fr
Is there a way to get the pointer or reference of an element in
Array(T)?
https://run.dlang.io/gist/70fd499afe8438d4877f57aec90c3091?compiler=dmd
The assertion seems to fail below. Value copy is not is intended
here.
module test;
void main()
{
struct Data
{
int id;
}
So I tried the same on Haswell processor with LDC 1.6.0 and it
crashes
```
=== Starting D version ===
Took 1 sec, 107 ms, and 383 μs to load 100 items. Gonna
search in parallel...
*** Error in `./dmain-ldc': double free or corruption (fasttop):
0x00edc6e0 ***
*** Error in `./dmain-
On Friday, 8 December 2017 at 10:01:14 UTC, Kagamin wrote:
On Friday, 8 December 2017 at 07:34:53 UTC, Arun Chandrasekaran
wrote:
I was wondering if std.container.array.Array supports
threadsafe parallel reads similar to std::vector.
No, your code can also fail on a system with inconsistent ca
On Friday, 8 December 2017 at 07:34:53 UTC, Arun Chandrasekaran
wrote:
I was wondering if std.container.array.Array supports
threadsafe parallel reads similar to std::vector. I've created
a small program for demonstration
https://github.com/carun/parallel-read-tester
It works fine with just c
On Friday, 8 December 2017 at 07:34:53 UTC, Arun Chandrasekaran
wrote:
2. I'm on an 8 CPU box and I don't seem to hit 800% CPU with D
version (max 720%). However I can get 800% CPU usage with the
C++ version.
Please ignore, this is because of the write.
On Friday, 8 December 2017 at 06:37:36 UTC, Adam D. Ruppe wrote:
On Friday, 8 December 2017 at 05:16:22 UTC, Fra Mecca wrote:
Is there a way to compile a project and deploying it as a
single statically linked binary?
A default build of a D program is *reasonably* compatible. All
its dependenc
I was wondering if std.container.array.Array supports threadsafe
parallel reads similar to std::vector. I've created a small
program for demonstration
https://github.com/carun/parallel-read-tester
It works fine with just couple of problems though:
1. D version takes way too long compared to C
On Monday, 4 December 2017 at 01:26:45 UTC, Arun Chandrasekaran
wrote:
On Sunday, 3 December 2017 at 23:39:49 UTC, Basile B. wrote:
[...]
If you still lose changes, you could try using Mercurial with
hggit. It can be a bit slow, but not destructive as git itself.
;)
I really wish Mercurial
On Sunday, 3 December 2017 at 23:39:49 UTC, Basile B. wrote:
On Sunday, 3 December 2017 at 22:22:47 UTC, Arun Chandrasekaran
wrote:
Git CLI is arcane and esoteric. I've lost my commits before
(yeah, my mistake).
Who hasn't ;)
Happened to me last time because i tried a command supposed to
remo
Git CLI is arcane and esoteric. I've lost my commits before
(yeah, my mistake). Since then I always access git via mercurial.
In comparison Mercurial is far better a VCS tool.
On Wednesday, 29 November 2017 at 17:26:11 UTC, Nick Treleaven
wrote:
Here's a list of significant things - maybe incomplete:
https://wiki.dlang.org/Differences_With_TDPL
Multiple alias this
You can only have one subtyping member currently.
Shared
Not all of shared's guarantees are implemen
On Sunday, 29 October 2017 at 15:45:23 UTC, Jesse Phillips wrote:
Not really you'll need to parse it out as a string and do the
conversion later.
It probably would be good to support nullable!int pretty sure
it doesn't currently.
Should I raise a ticket on Bugzilla to address this?
CSV with empty values for integer fields throws
(Row: 1, Col: 3) Unexpected end of input when converting from
type string to type int
Code that parses the CSV:
```
import std.algorithm;
import std.array;
import std.csv;
import std.stdio;
import std.conv;
import std.range;
private struct Iden
On Tuesday, 24 October 2017 at 16:18:03 UTC, H. S. Teoh wrote:
On Tue, Oct 24, 2017 at 10:02:11AM +, Arun Chandrasekaran
via Digitalmars-d-learn wrote:
On Monday, 23 October 2017 at 18:08:43 UTC, Ali Çehreli wrote:
> On 10/23/2017 07:22 AM, Arun Chandrasekaran wrote:
> > [...]
>
On Monday, 23 October 2017 at 18:08:43 UTC, Ali Çehreli wrote:
On 10/23/2017 07:22 AM, Arun Chandrasekaran wrote:
> [...]
The rule is that every expression has a type and 22/7 is int.
Thanks Ali. Is this for backward compatibility with C? Because,
if there is a division, a natural/mathematical
On Monday, 23 October 2017 at 14:07:06 UTC, Arun Chandrasekaran
wrote:
I've written a simple tool [1] to find the DET and CMC
specifically for biometrics performance measurement.
When I generate the report, I expected to see high precision
floating point numbers, but I see that writefln trims
I've written a simple tool [1] to find the DET and CMC
specifically for biometrics performance measurement.
When I generate the report, I expected to see high precision
floating point numbers, but I see that writefln trims the
precision to the last 6 digits after decimal point.
Am I doing th
On Monday, 16 October 2017 at 03:49:18 UTC, ketmar wrote:
Michael V. Franklin wrote:
[...]
judging from my several decades of expirience, bounties almost
never works. there are alot of reasons for that, but the fact
still stands: it is *almost* impossible to make something
happen with boun
On Wednesday, 27 September 2017 at 14:34:06 UTC, Eugene Wissner
wrote:
On Wednesday, 27 September 2017 at 14:23:01 UTC, Ky-Anh Huynh
wrote:
See also the following chapter in Ali's book:
http://ddili.org/ders/d.en/templates.html
This chapter is what hooked me with D. Naming that chapter as
On Friday, 11 August 2017 at 21:58:20 UTC, Johnson wrote:
Just a thought, maybe the GC isn't cleaning up quick enough?
You are allocating and md5 digest each iteration.
Possibly, an opitimization is use use a collection of md5
hashes and reuse them. e.g., pre-allocate 100(you probably only
ne
On Friday, 11 August 2017 at 21:33:51 UTC, Arun Chandrasekaran
wrote:
I've modified the sample from tour.dlang.org to calculate the
[...]
RHEL 7.2 64 bit
dmd v2.075.0
ldc 1.1.0
I've modified the sample from tour.dlang.org to calculate the md5
digest of the files in a directory using std.parallelism.
When I run this on a dir with huge number of files, I get:
core.exception.OutOfMemoryError@src/core/exception.d(696): Memory
allocation failed
Since dirEntries returns
On Thursday, 23 February 2017 at 21:05:48 UTC, cym13 wrote:
It reminds me of
https://w0rp.com/blog/post/an-raii-constructor-by-another-name-is-just-as-sweet/ which isn't what you want but may be interesting anyway.
It is interesting, indeed, thanks.
On Thursday, 23 February 2017 at 09:57:09 UTC, ketmar wrote:
Arun Chandrasekaran wrote:
I'm trying to write an RAII wrapper on Linux.
I understand struct in D doesn't have default constructor (for
.init reasons).
I don't want to use `scope`.
Is there an elegant way to achieve this in D?
why
I'm trying to write an RAII wrapper on Linux.
I understand struct in D doesn't have default constructor (for
.init reasons).
I don't want to use `scope`.
Is there an elegant way to achieve this in D?
```
import core.sys.posix.pthread;
import core.sys.posix.sys.types;
/// Makes pthread_mutexa
Does phobos offer concurrent containers?
I couldn't find one at http://dlang.org/phobos/std_container.html
Any other in the D land?
Arun
On Tuesday, 17 January 2017 at 08:12:50 UTC, ketmar wrote:
import core.thread;
import core.time;
import std.stdio;
void threadStarter (string path) {
new Thread({
for (;;) {
writeln(path);
Thread.sleep(1.seconds);
}
}).start();
}
class A {
~this () { import core.stdc.
On Tuesday, 25 October 2016 at 21:23:21 UTC, Arun Chandrasekaran
wrote:
I am looking for a RESTful framework in D, which can interact
with an existing backend processes (C++) via ZeroMQ and shared
memory. I thought vibe.d might be a viable option. But I
discussed with someone on Freenode #d and
I am looking for a RESTful framework in D, which can interact
with an existing backend processes (C++) via ZeroMQ and shared
memory. I thought vibe.d might be a viable option. But I
discussed with someone on Freenode #d and found that vibe.d
doesn't support explicit threading [1].
Can someone
On Tuesday, 22 December 2015 at 16:08:01 UTC, Dejan Lekic wrote:
Arun, isn't that what the 'name' property is there for?
Hi Dejan,
Thanks for a quick reply.
Setting the name property is not reflecting in the OS level. May
be it is just used only at the object level?
After setting the threa
I have this trivial code where the main thread clones a child
thread.
import std.stdio;
import core.thread;
import std.concurrency;
class DerivedThread : Thread
{
this()
{
super(&run);
}
void quit()
{
_quit = true;
}
private:
void setOSThreadName()
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