On Tuesday, 1 September 2020 at 03:51:10 UTC, user1234 wrote:
On Tuesday, 1 September 2020 at 02:08:54 UTC, JG wrote:
Is there anyway to remove the boilerplate code of dealing with
tuples:
I find myself having to write things like this fairly often
auto someRandomName = f(...); //where f
Thank you all for the interesting suggestions.
Is there anyway to remove the boilerplate code of dealing with
tuples:
I find myself having to write things like this fairly often
auto someRandomName = f(...); //where f returns a tuple with two
parts
auto firstPart = someRandomName[0];
auto secondPart = someRandomName[1];
Is to possible
On Wednesday, 2 September 2020 at 03:52:55 UTC, JG wrote:
Thank you all for the interesting suggestions.
Still thinking about this from time to time.
Other than the suggestions given, this is what I have
been playing around with.
-
import std.stdio;
import
On Thursday, 17 September 2020 at 00:51:54 UTC, dangbinghoo wrote:
hi,
is there any way to get the index for an element when iteration
using each!(x)?
I know I can do this using foreach statement, but I prefer
using the each template.
---
string s = "hello";
foreach(i, c; s) {
}
On Monday, 2 November 2020 at 17:02:01 UTC, Steven Schveighoffer
wrote:
On 11/2/20 10:10 AM, JG wrote:
I am trying to get the body the response generated by:
res.render!("index.dt");
where res is of type HTTPServerResponse
Does anyone know how I might go about this?
That is a convenience
I am trying to get the body the response generated by:
res.render!("index.dt");
where res is of type HTTPServerResponse
Does anyone know how I might go about this?
Is it specified somewhere which way the following program will be
interpreted?
import std;
struct A
{
int x=17;
}
int x(A a)
{
return 100*a.x;
}
void main()
{
A a;
writeln(a.x);
}
On Thursday, 17 June 2021 at 18:54:41 UTC, WebFreak001 wrote:
On Thursday, 17 June 2021 at 16:26:57 UTC, JG wrote:
[...]
Thanks, this works. I would have thought this would be a
common enough use case to have support in diet. Anyone else
wanted this?
Opened an issue here:
On Thursday, 17 June 2021 at 09:16:56 UTC, WebFreak001 wrote:
On Thursday, 17 June 2021 at 08:23:54 UTC, JG wrote:
Suppose I have an array of attributes and values v is there
any way to apply these attributes to a tag?
So that something like
tag(#{v[0]0]}=#{v[0][1]},...})
becomes
where
I found the following behaviour, as part of a more complicated
algorithm, unexpected. The program:
import std;
void main()
{
int n = 64;
writeln(123uL>>n);
}
produces:
123
I would expect 0.
What is the rationale for this behaviour or is it a bug?
Suppose I have an array of attributes and values v is there any
way to apply these attributes to a tag?
So that something like
tag(#{v[0]0]}=#{v[0][1]},...})
becomes
where v[0][0]="attribute0" and v[0][1]="value0"?
Reading the documentation on RefCounted I get the impression that
the following can lead to memory errors. Could someone explain
exactly how that could happen? I suppose that problem would be
the call something to do with front?
```
private struct RefCountedRangeReturnType(R)
{
import
On Monday, 10 May 2021 at 11:11:06 UTC, Mike Parker wrote:
On Monday, 10 May 2021 at 10:56:35 UTC, JG wrote:
The following compiles with dmd but not with ldc on
run.dlang.io. Am I doing something wrong?
Please provide the error message(s) when asking questions like
this. In this case:
```
The following compiles with dmd but not with ldc on run.dlang.io.
Am I doing something wrong?
import core.memory;
void main()
{
struct S
{
int x;
this(this) @disable;
~this() @safe pure nothrow @nogc {}
}
S* p;
On Wednesday, 12 May 2021 at 13:38:10 UTC, Steven Schveighoffer
wrote:
On 5/12/21 3:28 AM, JG wrote:
Reading the documentation on RefCounted I get the impression
that the following can lead to memory errors. Could someone
explain exactly how that could happen? I suppose that problem
would be
On Wednesday, 12 May 2021 at 13:37:26 UTC, Vinod K Chandran wrote:
Hi all,
I am creating a hobby project related with win api gui
functions. i would like to work with dub. But How do I use dub
in my project.
1. All my gui library modules are located in a folder named
"winglib".
2. And that
On Thursday, 13 May 2021 at 03:48:49 UTC, Tim wrote:
On Thursday, 13 May 2021 at 03:46:28 UTC, Alain De Vos wrote:
Not is is not wrong it is wright.
Because you use not pi but an approximation of pi the result
is not zero but an approximation of zero.
Oh, of course. Jesus that sucks big
On Thursday, 13 May 2021 at 00:53:50 UTC, Steven Schveighoffer
wrote:
On 5/12/21 1:16 PM, JG wrote:
[...]
Ah, ok. So reference counting provides a single thing you can
point at and pass around without worrying about memory cleanup.
But only as long as you refer to it strictly through a
I am getting the following message:
Warning: struct SumType has method toHash, however it cannot be
called with const(SumType!(A,B,C)) this
Could someone point in the right direction to understand what I
am doing that causes this?
I was trying to profile a d program. So I ran: dub build
--build=profile. I then ran the program and it produced trace.log
and trace.def. I then ran d-profile-viewer and got the following
error:
std.conv.ConvException@/home/jg/dlang/ldc-1.24.0/bin/../import/std/conv.d(2382):
Unexpected '-'
On Tuesday, 9 February 2021 at 18:33:16 UTC, drug wrote:
On Tuesday, 9 February 2021 at 07:45:13 UTC, JG wrote:
I was trying to profile a d program. So I ran: dub build
--build=profile. I then ran the program and it produced
trace.log and trace.def. I then ran d-profile-viewer and got
the
On Sunday, 28 February 2021 at 18:10:26 UTC, Steven Schveighoffer
wrote:
On 2/28/21 12:29 AM, JG wrote:
On Saturday, 27 February 2021 at 19:12:55 UTC, Steven
Schveighoffer wrote:
If you use an expression without quotes
in diet, it becomes an interpolation.
Would you mind explaining in more
Hi,
I know that one can do the following:
tag(attribute='#{dexpression}')
But, is there a way to deal with attributes that don't get
assigned values.
That is, is there a way to produce
or
depending on a boolean variable?
Of course one can do:
- if (booleanVariable)
tag(attribute)
On Saturday, 27 February 2021 at 19:12:55 UTC, Steven
Schveighoffer wrote:
Yes, if you assign a boolean value to it directly, then if
true, the attribute is included, if not, it's not.
e.g.:
tag(attribute=booleanVariable)
Note the lack of quotes.
Thank you very much for this.
If you
Hi
I want to put some code together in a local library that is then
used by several other projects. I am running into a few problems.
Firstly when I try and configure the code to be a library (dub
init, add d files to source, and remove source/app.d - perhaps
this wrong) dub test no longer
On Tuesday, 20 April 2021 at 18:11:18 UTC, Andre Pany wrote:
On Tuesday, 20 April 2021 at 17:15:15 UTC, JG wrote:
Hi
I want to put some code together in a local library that is
then used by several other projects. I am running into a few
problems. Firstly when I try and configure the code to
On Wednesday, 21 April 2021 at 00:39:41 UTC, Mike Parker wrote:
On Tuesday, 20 April 2021 at 18:43:28 UTC, JG wrote:
This still leaves open the question of how to include a
version of such a library in another project via dub.
Execute `dub add-local` followed by the path to the project's
On Wednesday, 21 April 2021 at 19:15:19 UTC, Jordan Wilson wrote:
On Wednesday, 21 April 2021 at 15:07:25 UTC, JG wrote:
On Wednesday, 21 April 2021 at 00:39:41 UTC, Mike Parker wrote:
[...]
Thanks. I suppose this means that if you want to able to use
multiple versions you have to keep each
Hi,
We are intermittently getting the following error:
Accept TLS connection: server
OpenSSL error at ../ssl/record/rec_layer_s3.c:1543:
error:14094416:SSL routines:ssl3_read_bytes:sslv3 alert
certificate unknown (SSL alert number 46)
HTTP connection handler has thrown: Accepting SSL tunnel:
Suppose one has a pointer p of type T*.
Can on declare variable a of type T which is stored in the
location pointed to by p?
As an example if we have:
struct S
{
int x = 1234;
}
void main() {
S s;
//unknown construction of a using &(s.x)
writeln(a);
Hi
I have a program with two threads. One thread produces data that
is put in a queue
and then consumed by the other thread. I initially built a custom
queue to do this, but thought this should have some standard
solution in D? I looked at std.concurrency and thought that
message passing
On Tuesday, 17 August 2021 at 12:24:14 UTC, Steven Schveighoffer
wrote:
On 8/17/21 7:05 AM, JG wrote:
Hi
I have a program with two threads. One thread produces data
that is put in a queue
and then consumed by the other thread. I initially built a
custom queue to do this, but thought this
On Tuesday, 24 August 2021 at 09:36:06 UTC, JG wrote:
On Wednesday, 10 February 2021 at 23:42:31 UTC, mw wrote:
[...]
I tried to do this, but I am not sure how to install profdump.
What I did is cloned the repository using git.
Tried to build it using dub but got an error as described here:
On Tuesday, 24 August 2021 at 09:42:29 UTC, JG wrote:
On Tuesday, 24 August 2021 at 09:36:06 UTC, JG wrote:
On Wednesday, 10 February 2021 at 23:42:31 UTC, mw wrote:
[...]
I tried to do this, but I am not sure how to install profdump.
What I did is cloned the repository using git.
Tried to
On Wednesday, 10 February 2021 at 23:42:31 UTC, mw wrote:
On Wednesday, 10 February 2021 at 11:52:51 UTC, JG wrote:
As a follow up question I would like to know what tool people
use to profile d programs?
I use this one:
https://code.dlang.org/packages/profdump
e.g.
```
dub build
On Tuesday, 24 August 2021 at 09:45:31 UTC, JG wrote:
On Tuesday, 24 August 2021 at 09:42:29 UTC, JG wrote:
On Tuesday, 24 August 2021 at 09:36:06 UTC, JG wrote:
[...]
In case anyone is interested it seems that it was forked to
here:
https://github.com/joakim-brannstrom/profdump
Perhaps
On Friday, 13 August 2021 at 17:19:43 UTC, H. S. Teoh wrote:
On Fri, Aug 13, 2021 at 05:11:50PM +, Rekel via
Digitalmars-d-learn wrote: [...]
For anyone more experienced with C, I'm not well known with
references but are those semantically similar to the idea of
using a type at a
On Sunday, 15 August 2021 at 21:53:14 UTC, Carl Sturtivant wrote:
On Sunday, 15 August 2021 at 07:10:17 UTC, JG wrote:
[...]
What you are asking for are reference variables. C++ has them:
the example here illustrates the behavior you want.
https://www.geeksforgeeks.org/references-in-c/
On Friday, 20 August 2021 at 10:50:12 UTC, WebFreak001 wrote:
On Wednesday, 18 August 2021 at 19:51:00 UTC, JG wrote:
[...]
There might be incompatibilities with how openssl is used and
the installed openssl version or config.
If you are getting this from having https enabled on the
On Saturday, 14 August 2021 at 20:50:47 UTC, Carl Sturtivant
wrote:
```
struct S {
int x = 1234;
}
void main() {
import std.stdio;
S s;
//construction of a using &(s.x)
auto a = Ref!(int)();
writeln(a); //displays 1234
s.x += 1;
writeln(a); //displays 1235
a += 1;
On Thursday, 2 September 2021 at 17:56:54 UTC, Vladimir Panteleev
wrote:
On Thursday, 2 September 2021 at 11:20:18 UTC, Vladimir
Panteleev wrote:
One way to get a very rough estimate is to take the square of
the current reduction (.reduced directory), and divide it by
the square of the
On Thursday, 2 September 2021 at 11:19:55 UTC, jfondren wrote:
On Thursday, 2 September 2021 at 11:04:12 UTC, JG wrote:
Hi,
We hit a linking error (after upgrading to dub 1.26.0). I
thought I would try to use dustmite to create a reduced error
test case. One week later it is still running
Hi,
We hit a linking error (after upgrading to dub 1.26.0). I thought
I would try to use dustmite to create a reduced error test case.
One week later it is still running (depth 22). I don't suppose
there is anyway of determining when it will finish?
On Saturday, 4 September 2021 at 07:40:07 UTC, Vladimir Panteleev
wrote:
On Saturday, 4 September 2021 at 07:38:34 UTC, Andre Pany wrote:
The Dustmite condition you are using seems very generic,
therefore this error message can be triggered by various code
constellations. This might be the
On Saturday, 4 September 2021 at 08:05:16 UTC, JG wrote:
On Saturday, 4 September 2021 at 07:40:07 UTC, Vladimir
Panteleev wrote:
On Saturday, 4 September 2021 at 07:38:34 UTC, Andre Pany
wrote:
The Dustmite condition you are using seems very generic,
therefore this error message can be
On Friday, 3 September 2021 at 19:56:30 UTC, JG wrote:
On Thursday, 2 September 2021 at 17:56:54 UTC, Vladimir
Panteleev wrote:
On Thursday, 2 September 2021 at 11:20:18 UTC, Vladimir
Panteleev wrote:
One way to get a very rough estimate is to take the square of
the current reduction (.reduced
On Saturday, 4 September 2021 at 06:18:52 UTC, JG wrote:
On Friday, 3 September 2021 at 19:56:30 UTC, JG wrote:
[...]
I tried again. What am I doing wrong?
cp source ~/tmp/source
cd ~/tmp/source
dub build --config prog1 2>&1 | grep "collect2: error: ld
returned 1 exit status"
echo $?
On Saturday, 4 September 2021 at 08:54:31 UTC, Mike Parker wrote:
On Saturday, 4 September 2021 at 08:19:53 UTC, JG wrote:
[...]
You should be able to do that now with "sourceFiles" and
"sourcePaths". Just avoid the default "source" or "src"
directories and specify the paths and/or files
What is the relationship between
https://dlang.org/library/
and
https://dlang.org/phobos/index.html
On Saturday, 7 August 2021 at 14:36:39 UTC, Dennis wrote:
On Friday, 6 August 2021 at 12:30:16 UTC, JG wrote:
I guess this means that tracy has been integrated?
If this is so is it documented anywhere how to use it?
Stefan Koch's WIP tracy integration in DMD is completely
separate from Johan
There was a message a while back
(https://forum.dlang.org/post/fyakhpjbcpzqegfev...@forum.dlang.org)
about adding support for tracy.
When I asked a question about compile time performance I received
the following instructions:
https://forum.dlang.org/post/eevoyuwhbuycyzgxs...@forum.dlang.org
On Sunday, 2 January 2022 at 17:27:53 UTC, Amit wrote:
Hi!
I would like to print a string in the same format that I would
write it in the code (with quotes and with special characters
escaped). Similar to [Go's %q
format](https://pkg.go.dev/fmt#hdr-Printing). Is there a safe,
built-in way
I am heavily using SumType (which I like very much). The problem
I am having is that is seems to be causing slow compile times (as
can be observed by profiling during the compile). The problem
seems to be with match (which is extremely convenient to use). I
looked at the code and it does the
On Thursday, 28 October 2021 at 13:30:53 UTC, Paul Backus wrote:
On Thursday, 28 October 2021 at 09:02:52 UTC, JG wrote:
I am heavily using SumType (which I like very much). The
problem I am having is that is seems to be causing slow
compile times (as can be observed by profiling during the
On Monday, 25 October 2021 at 04:49:12 UTC, mw wrote:
Hi,
https://dlang.org/phobos/std_container_binaryheap.html
The binary heap induces structure over the underlying store
such that accessing the largest element (by using the front
property) is a Ο(1) operation.
I'm wondering what's the
On Friday, 23 July 2021 at 18:57:46 UTC, Adam D Ruppe wrote:
On Friday, 23 July 2021 at 18:53:06 UTC, JG wrote:
The program I writing is around 3000 loc
what's the code?
I am not sure how relevant it is but it is a compiler that I have
been writing, not something serious (yet - if ever).
Hi,
The program I writing is around 3000 loc and recently I noticed a
large slow down in compile time which after investigation seemed
to be caused by my computer running out of memory. The compile
was using more than 15GB memory. I tried using lowmem and that
did solve the memory problem
On Friday, 23 July 2021 at 20:03:22 UTC, Dennis wrote:
On Friday, 23 July 2021 at 18:53:06 UTC, JG wrote:
[...]
You can try profiling it with LDC 1.25 or later. Add this to
dub.sdl:
[...]
Thanks for this suggestion. Unfortunately this makes the compile
use too much memory for my system
On Saturday, 24 July 2021 at 20:10:37 UTC, JG wrote:
On Saturday, 24 July 2021 at 19:39:02 UTC, Alexey wrote:
[...]
There are probably better ways. However, this seems to work:
```d
import std;
enum canBeSetToNull(T) = __traits(compiles,(T.init is null));
interface I1
{
}
class C1 : I1
{
}
On Saturday, 24 July 2021 at 19:39:02 UTC, Alexey wrote:
On Saturday, 24 July 2021 at 18:10:07 UTC, Alexey wrote:
I've tried to use ```typeof(t) is cast(t)null```, but compiler
exits with error and so this can't be used for checking this
issue.
The goal I with to achieve by this check - is
On Saturday, 24 July 2021 at 08:26:39 UTC, JG wrote:
On Friday, 23 July 2021 at 20:03:22 UTC, Dennis wrote:
On Friday, 23 July 2021 at 18:53:06 UTC, JG wrote:
[...]
You can try profiling it with LDC 1.25 or later. Add this to
dub.sdl:
[...]
Thanks for this suggestion. Unfortunately this
On Saturday, 24 July 2021 at 09:12:15 UTC, JG wrote:
On Saturday, 24 July 2021 at 08:26:39 UTC, JG wrote:
On Friday, 23 July 2021 at 20:03:22 UTC, Dennis wrote:
[...]
Thanks for this suggestion. Unfortunately this makes the
compile use too much memory for my system and so it gets
killed
On Monday, 26 July 2021 at 16:46:40 UTC, Tejas wrote:
On Monday, 26 July 2021 at 15:42:44 UTC, Paul Backus wrote:
On Monday, 26 July 2021 at 15:29:26 UTC, Tejas wrote:
```d
import std;
import core.thread.osthread;
void delegate() f;
void main()
{
void func(){}
f =
Hi,
I want to make a type which has two fields x and y but can
also be indexed with [0] and [1] checked at compile time.
Is the following reasonable / correct?
struct Point
{
double x;
double y;
alias expand = typeof(this).tupleof;
alias expand this;
}
On Friday, 1 April 2022 at 22:22:21 UTC, Vijay Nayar wrote:
Consider the following program:
```d
void main()
{
import std.stdio;
import std.container.rbtree;
import std.variant;
[...]
You need an order on the elements in a red black tree. Am I
correct in thinking you want a
Consider the following code:
```d
import std;
auto logVariadic(T...)(T x,int line=__LINE__,string
file=__FILE__) {
writeln(file,":",line," ",x);
}
int variadicCnt;
auto logVariadicWrapper(T...)(T x, int line=__LINE__, string
file=__FILE__) {
variadicCnt++;
logVariadic(x,line,file);
}
Hi,
I have an png image that I generate (via pdf via pdflatex) that I
want to scale and display in a widget. Is this possible via
something in arsd? I tried resizeImage but that doesn't seem to
do what I expect. Any suggestions?
On Sunday, 3 April 2022 at 17:10:48 UTC, Adam Ruppe wrote:
On Sunday, 3 April 2022 at 16:58:03 UTC, JG wrote:
[...]
Which resizeImage did you use, from the imageresize module?
What pain you have with it? Some of its settings take some
tweaking.
[...]
Thank you very much for your quick
On Tuesday, 25 January 2022 at 12:27:16 UTC, Dennis wrote:
On Tuesday, 25 January 2022 at 12:11:01 UTC, JG wrote:
Any ideas how one can achieve what is written in the subject
line?
```D
void f(T...)(auto ref T args, string file = __FILE__, int line
= __LINE__)
{
writeln(file, ":", line,
Any ideas how one can achieve what is written in the subject line?
f below does achieve this but I one would expect that it produces
significant template bloat.
g achieves the aim but isn't very elegant.
import std;
void f(string file=__FILE__,size_t line=__LINE__,R...)(R r)
{
On Wednesday, 13 April 2022 at 20:47:33 UTC, JG wrote:
Hi,
I would have thought that RefCounted!(T,
RefCountedAutoInitialize.no) is to be used in place T* when I
want reference counting instead of the usual garbage collection
(or manual allocation). Perhaps this is wrong?
[...]
In case
On Tuesday, 19 September 2023 at 00:34:01 UTC, vino wrote:
Hi All,
I am trying to understand as to why the below code is throwing
error
Code
```
import std.stdio: writeln;
import std.container.array;
void main () {
//auto a = Array!string("Aname"); // throws error
auto b =
Hi,
Could someone possibly help me to understand why the commented
line doesn't compile?
```d
import std;
struct MapResult(R,F)
{
R r;
const F f;
auto empty() { return r.empty; }
auto front() { return f(r.front); }
void popFront() { r.popFront; }
auto save() { return
On Thursday, 21 April 2022 at 21:02:47 UTC, JG wrote:
Hi,
Could someone possibly help me to understand why the commented
line doesn't compile?
```d
import std;
struct MapResult(R,F)
{
R r;
const F f;
auto empty() { return r.empty; }
auto front() { return f(r.front); }
On Wednesday, 20 April 2022 at 08:04:42 UTC, Salih Dincer wrote:
```d
alias type = real;
alias func = type function(type a);
[...]
I think technically you should have save after range in that loop.
On Tuesday, 26 April 2022 at 06:55:34 UTC, Alain De Vos wrote:
Can someone provide a simple/very simple reference counting or
refcounted example i can understand. Thanks.
I suggest to look at RefCounted
[here](https://code.dlang.org/packages/automem) rather than in
Phobos. There are simple
On Tuesday, 31 May 2022 at 08:51:45 UTC, realhet wrote:
Hi,
In my framework I just found a dozen of compile time error
handling like:
...else static assert("Invalid type");
This compiles without error. And it was useless for detecting
errors because I forgot the first "false" or "0"
On Monday, 23 May 2022 at 11:39:22 UTC, Adam D Ruppe wrote:
On Monday, 23 May 2022 at 09:38:07 UTC, JG wrote:
Hi,
Is there any more standard way to achieve something to the
effect of:
```d
import std.experimental.allocator;
string* name = theAllocator.make!string;
```
Why do you want
Hi,
I was reading the source of std.algorithm cache and saw some code
that didn't make sense to me with a comment indexing the [bug
report](https://issues.dlang.org/show_bug.cgi?id=15891). Could
anyone help to understand if this code is really necessary
(meaning I have some misconception) or
Hi,
Is there any more standard way to achieve something to the effect
of:
```d
import std.experimental.allocator;
string* name = theAllocator.make!string;
```
On Tuesday, 17 May 2022 at 00:10:55 UTC, Alain De Vos wrote:
Let's say a shape is ,a circle with a radius ,or a square with
a rectangular size.
I want to pass shapes to functions, eg to draw them on the
screen,
draw(myshape) or myshape.draw();
But how do i implement best shapes ?
You could
On Tuesday, 21 June 2022 at 17:15:02 UTC, Steven Schveighoffer
wrote:
On 6/21/22 1:09 PM, JG wrote:
Thoughts?
Use a pointer? Especially if you are using `.method` calls,
this just works seamlessly.
-Steve
Thanks for the suggestion. My immediate reaction is that for
`.method` calls I
Suppose we are often writing something like
```d
theFirstName[theFirstIndex].theSecondName[theSecondIndex].thirdName[theThirdIndex]=x;
```
One would like to something like
```d
alias shortName =
theFirstName[theFirstIndex].theSecondName[theSecondIndex].thirdName[theThirdIndex];
shortName = x;
Hi,
As an experiment I have implemented the following kind of pattern
matching
(by parsing the part of the string before '=').
```d
struct S {
int x;
int y;
}
struct T {
int w;
S s;
}
void main()
{
mixin(matchAssign(q{auto T(first,S(second,third)) =
T(1,S(2,3));}));
On Monday, 13 June 2022 at 20:25:00 UTC, Steven Schveighoffer
wrote:
On 6/13/22 4:09 PM, JG wrote:
Thanks. It seems to be something to do with the variadic
template since this
works:
```d
import std;
struct ParseError { string msg; }
alias ParseErrorOr(T) = SumType!(ParseError,T);
auto
On Monday, 13 June 2022 at 19:59:16 UTC, Steven Schveighoffer
wrote:
On 6/13/22 3:48 PM, JG wrote:
Hi,
I reduced my code to the following. Could anyone help me to
discover why the line marked with //THIS LINE
causes memcpy to be called, and how can I avoid this?
```d
import std;
struct
On Wednesday, 15 June 2022 at 17:30:31 UTC, JG wrote:
On Wednesday, 15 June 2022 at 13:52:24 UTC, Christian Köstlin
wrote:
the naive version would look like
```d
auto next(Range)(Range r) {
r.popFront;
return r.front;
}
```
But looking at a mature library e.g.
On Wednesday, 15 June 2022 at 13:52:24 UTC, Christian Köstlin
wrote:
the naive version would look like
```d
auto next(Range)(Range r) {
r.popFront;
return r.front;
}
```
But looking at a mature library e.g.
Hi,
I reduced my code to the following. Could anyone help me to
discover why the line marked with //THIS LINE
causes memcpy to be called, and how can I avoid this?
```d
import std;
struct ParseError { string msg; }
alias ParseErrorOr(T) = SumType!(ParseError,T);
auto parseErrorOr(T)(T x)
On Friday, 10 June 2022 at 06:17:54 UTC, bauss wrote:
On Thursday, 9 June 2022 at 23:50:10 UTC, user1234 wrote:
There's [been attempts] to expose it, exactly so that users
can generate unique names, but that did not found its path in
the compiler.
[been attempts]:
On Monday, 13 June 2022 at 21:45:39 UTC, Paul Backus wrote:
On Monday, 13 June 2022 at 19:48:06 UTC, JG wrote:
Hi,
I reduced my code to the following. Could anyone help me to
discover why the line marked with //THIS LINE
causes memcpy to be called, and how can I avoid this?
Reduced
On Sunday, 12 June 2022 at 18:45:27 UTC, Paul Backus wrote:
On Thursday, 9 June 2022 at 21:20:27 UTC, JG wrote:
[...]
[...]
[...]
Here's a `gensym` implementation I came up with a while back:
```d
enum gensym = q{"_gensym" ~ __traits(identifier,
{})["__lambda".length .. $]};
// Works
Hi,
Is this a bug?
```d
import std;
template test(alias f) {
auto test(I)(I i) { return f(i); }
}
void main()
{
alias t = test!(x=>x+1);
1.t.writeln; //<--Doesn't compile
1.test!(x=>x+1).writeln;
t(1).writeln;
}
```
On Tuesday, 14 June 2022 at 19:49:39 UTC, Steven Schveighoffer
wrote:
On 6/14/22 3:35 PM, JG wrote:
Hi,
Is this a bug?
```d
import std;
template test(alias f) {
auto test(I)(I i) { return f(i); }
}
void main()
{
alias t = test!(x=>x+1);
1.t.writeln; //<--Doesn't compile
On Tuesday, 14 June 2022 at 23:56:58 UTC, Andrey Zherikov wrote:
On Tuesday, 14 June 2022 at 21:44:48 UTC, Dukc wrote:
No idea. The functions seems indeed to be exactly the same, so
I assume this is a DMD bug. It cannot be a bug in
`std.sumtype`, since that would trigger in both of the
On Tuesday, 21 June 2022 at 01:39:43 UTC, Paul Backus wrote:
On Tuesday, 14 June 2022 at 05:35:46 UTC, JG wrote:
On Monday, 13 June 2022 at 21:45:39 UTC, Paul Backus wrote:
The call to `move` is coming from `SumType.opAssign`:
https://github.com/dlang/phobos/blob/v2.100.0/std/sumtype.d#L681
On Sunday, 1 May 2022 at 07:59:57 UTC, Elfstone wrote:
On Sunday, 1 May 2022 at 06:42:26 UTC, Tejas wrote:
On Sunday, 1 May 2022 at 03:57:12 UTC, Elfstone wrote:
module test;
struct MatrixImpl(S, size_t M, size_t N)
{
}
[...]
AFAICT, I'm afraid you'll have to stick to
On Sunday, 1 May 2022 at 11:34:49 UTC, JG wrote:
On Sunday, 1 May 2022 at 07:59:57 UTC, Elfstone wrote:
On Sunday, 1 May 2022 at 06:42:26 UTC, Tejas wrote:
[...]
Thanks a lot! So this really is a D "feature".
The current behaviour is so broken. It makes no sense, for a
language user at
On Wednesday, 13 April 2022 at 20:47:33 UTC, JG wrote:
Hi,
I would have thought that RefCounted!(T,
RefCountedAutoInitialize.no) is to be used in place T* when I
want reference counting instead of the usual garbage collection
(or manual allocation). Perhaps this is wrong?
[...]
Perhaps I
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