On Wed, Jul 30, 2025 at 10:54:15AM -0600, Jonathan M Davis via
Digitalmars-d-learn wrote:
[...]
> immutable int[] i;
>
> shared static this()
> {
> immutable(int)[] temp;
> temp ~= foo();
> temp ~= bar();
> i = temp;
> }
>
> But even the shared static constructor isn't allowed to
On Tue, Jul 29, 2025 at 10:57:50PM +, Brother Bill via Digitalmars-d-learn
wrote:
> ```
> import std.stdio;
>
> immutable int[] i;
>
> shared static this() {
> writeln("In shared static this()");
> i ~= 43;
> }
`i` is immutable, so it's illegal to use mutating operations like ~=
On Sun, Jul 27, 2025 at 05:02:35PM +, user1234 via Digitalmars-d-learn
wrote:
[...]
> Simply because because if OP writes
>
> ```
> class Person{
> string name;
> this(string name){this.name=name;}
> }
> class Someone:Person{
> }
> void main(){
> Someone x=new Someone("Bob");
> }
On Sun, Jul 27, 2025 at 11:08:33AM +, David T. Oxygen via
Digitalmars-d-learn wrote:
> I wrote a piece of code like this:
>
> ```d
> class Person{
> string name;
> this(string name){this.name=name;}
> }
> class Someone:Person{
> alias super this;
> }
> void main(){
> S
On Fri, Jul 25, 2025 at 01:04:31AM +, Brother Bill via Digitalmars-d-learn
wrote:
> From "Programming in D" book:
>
> import std.stdio;
> import std.random;
>
> void main() {
> int number = uniform(1, 101);
>
> writeln("Edit source/app.d to start your project.");
> }
>
On Thu, Jul 24, 2025 at 05:19:17PM +, Andy Valencia via Digitalmars-d-learn
wrote:
> What is considered the "clean" way to address this error:
>
> ```
> tst60.d(7): Error: class `tst60.B` cannot implicitly generate a
> default constructor when base class `tst60.A` is missing a default
> const
On Wed, Jul 16, 2025 at 01:29:01PM +, z via Digitalmars-d-learn wrote:
[...]
> I also see this in the language documentation :
> ```
> A void array cannot be indexed.
> ```
> But i can slice it just fine in DMD 2.111...
Probably an oversight.
> Is this by design or is there a hole in the lan
On Sat, Jul 12, 2025 at 06:35:42PM -0600, Jonathan M Davis via
Digitalmars-d-learn wrote:
> On Saturday, July 12, 2025 5:55:39 PM Mountain Daylight Time Ali Çehreli via
> Digitalmars-d-learn wrote:
[...]
> > Meanwhile, engineers like you suffer because of 'private'. I pick
> > engineering over 'p
On Fri, Jul 11, 2025 at 10:17:02PM +, WhatMeWorry via Digitalmars-d-learn
wrote:
> ```
> // working function
>
> SDL_Texture* changeTextureAccess(SDL_Texture *texture, SDL_TextureAccess
> newAccess)
> {
> // pertinent code only
> texture = createTexture(renderer, pixelFormat, newAcces
On Mon, Jun 30, 2025 at 04:51:27AM +, Rajesh via Digitalmars-d-learn wrote:
[...]
> ```
> Error: variable `__capture` cannot be read at compile time
> onlineapp.d(27):called from here: `Problem(0).this(1)`
> auto compile_time_var = Problem(1);
> ```
[...]
This article may help clear up
On Sat, Jun 21, 2025 at 04:18:37PM +, Neto via Digitalmars-d-learn wrote:
> On Saturday, 7 June 2025 at 16:42:51 UTC, Sergey wrote:
[...]
> > ```d
> > void main() {
> > string error_message = "D's desing is far from perfect";
> > writeln(" ".repeat(5).join, "[INFO]:", Clock.currTime(),
On Wed, Jun 04, 2025 at 12:00:57PM -0700, Ali Çehreli via Digitalmars-d-learn
wrote:
> On 6/4/25 4:10 AM, Monkyyy wrote:
> > On Wednesday, 4 June 2025 at 02:11:18 UTC, H. S. Teoh wrote:
> >> . But in general, containers should NOT be conflated with ranges.
> >> That
On Tue, Jun 03, 2025 at 11:54:20PM +, Andy Valencia via Digitalmars-d-learn
wrote:
> On Tuesday, 3 June 2025 at 20:51:05 UTC, Ali Çehreli wrote:
> > front() does not imply an order. It will work as long as you can
> > provide the elements in a sequence. The built-in associative array
> > featu
On Sat, May 24, 2025 at 08:29:52PM +, Andy Valencia via Digitalmars-d-learn
wrote:
> The best I"ve come up with for a "static if" to see if something's an
> array of ubyte:
>
> ```d
> (isArray!(typeof(arg))) && is(typeof(arg).init[0] == ubyte)
> ```
That's totally overkill. Just do this:
On Wed, May 21, 2025 at 05:47:20PM +, WhatMeWorry via Digitalmars-d-learn
wrote:
> On Friday, 16 May 2025 at 19:04:24 UTC, WhatMeWorry wrote:
> > /+ SDL3 has a function
> > bool SDL_SetTextureAlphaMod(SDL_Texture *texture, Uint8 alpha);
> > which has a Uint8 for one of its parameters. So I tr
On Sat, May 17, 2025 at 07:09:40AM -0600, Jonathan M Davis via
Digitalmars-d-learn wrote:
[...]
> Given that Java and C# disallow narrowing conversions, I expect that
> they have similar restrictions, but I haven't done much with either of
> them any time recently, so I'm not sure what they do wit
On Fri, May 16, 2025 at 07:04:24PM +, WhatMeWorry via Digitalmars-d-learn
wrote:
[...]
> void main()
> {
> ubyte a;
> a = a + 5; // onlineapp.d(11): Error: cannot implicitly convert
> expression `cast(int)a + 5` of type `int` to `ubyte`
[...]
Welcome to your first encounter with why
On Fri, Apr 25, 2025 at 05:24:18PM +, Andy Valencia via Digitalmars-d-learn
wrote:
> On Friday, 25 April 2025 at 16:59:16 UTC, monkyyy wrote:
> > its extremely unclear what your trying to do my best geuss:
>
> I want to use a mixin template to generate a top-level function.
Your best bet act
On Wed, Apr 16, 2025 at 04:23:43AM +, Andy Valencia via Digitalmars-d-learn
wrote:
> On Wednesday, 16 April 2025 at 01:44:33 UTC, Paul Backus wrote:
> > Nope, you're not missing anything. Using pointers is totally normal
> > and idiomatic in D.
>
> That said, I try to code under @safe when I
On Thu, Mar 20, 2025 at 11:51:46PM +, WhatMeWorry via Digitalmars-d-learn
wrote:
> Is there an elegant way, like with foreach, to step through a red black
> tree non-destructively? This destructive failure is the best I've been able
> to come up with.
>
> while(!rbt.empty)
> {
>
On Wed, Mar 19, 2025 at 10:26:54PM +, WhatMeWorry via Digitalmars-d-learn
wrote:
[...]
> The above compiles and executes successfully. But the following fails
> with: app.d(179,13): Error: no property `wasFound` for `i` of type
> `long`
>
> I thought the templated function would take care of
On Wed, Mar 19, 2025 at 11:21:15PM +, monkyyy via Digitalmars-d-learn wrote:
[...]
> ufcs on local functions is hit or miss;
[...]
I thought it was always a miss. :-D At least, it's never worked for me
every time I tried it. I always have to move the UFCS function to
module scope, then it wo
On Wed, Jan 29, 2025 at 07:08:49PM -0700, Jonathan M Davis via
Digitalmars-d-learn wrote:
> On Wednesday, January 29, 2025 6:38:07 PM MST Kyle Ingraham via
> Digitalmars-d-learn wrote:
> > Does D have a 'try' `std.conv:to` that does not throw if it fails?
> > Something like:
> > ```D
> > string i
On Mon, Jan 13, 2025 at 04:05:25AM +, Jim Balter via Digitalmars-d-learn
wrote:
> On Thursday, 9 January 2025 at 22:08:31 UTC, Dennis wrote:
> > On Thursday, 9 January 2025 at 22:01:59 UTC, WhatMeWorry wrote:
> > > this(Location locaction, uint f) {
> > > this.location = location;
On Mon, Jan 06, 2025 at 07:30:27PM +, Renato via Digitalmars-d-learn wrote:
> Is there any Phobos function that collects "some" items of a range
> into an array/slice?
> It's kind of embarrassing that I've been trying to find this for hours
> now without success :(.
[...]
> My use case is to pa
On Sat, Dec 21, 2024 at 07:06:12PM +, Jo Blow via Digitalmars-d-learn wrote:
[...]
> There really should be some push to get D integrated into some major
> platform. Maybe D could be the "JNI language" for the Android
> platform?
This is the difference between a corporate-backed and funded pro
On Thu, Dec 19, 2024 at 06:04:33AM +, Jo Blow via Digitalmars-d-learn wrote:
[...]
> I'm wondering if it would be worth the effort to try to get D to work
> with android studio since it can compile to all those. E.g., write the
> jetpack compose code in kotlin and hook up the business in with D
On Tue, Dec 17, 2024 at 07:16:55PM +, DLearner via Digitalmars-d-learn
wrote:
[...]
> What is wrong with changing the specification of unittest so that it
> recompiles/reexecutes the associated source on every unittest {}
> block?
That means the compiler will have to rerun your program once p
On Mon, Dec 16, 2024 at 08:33:27PM +, Andy Valencia via Digitalmars-d-learn
wrote:
> I have a string full of JavaScript to serve up, and a couple variable
> values need to be interpolated into it. I read that dlang now has
> interpolated strings under i"...", so yay! A bit of example code to
On Sun, Dec 15, 2024 at 08:45:22AM +, DLearner via Digitalmars-d-learn
wrote:
[...]
> I appreciate this behaviour matches the docs (so not a bug), but is it
> desirable?
>
> To me, as a test harness, a umittest block should be a completely
> fresh-from-scratch invocation of the code inside th
On Thu, Dec 12, 2024 at 06:52:27AM +, GrimMaple via Digitalmars-d-learn
wrote:
> On Wednesday, 11 December 2024 at 18:16:24 UTC, solidstate1991 wrote:
> > I'm thinking about writing, or well, rather modifying the existing
> > default runtime of D, mainly by stripping out the GC and moving
> >
On Tue, Oct 29, 2024 at 04:59:48PM +, Chris Piker via Digitalmars-d-learn
wrote:
> Hi D
>
> There is a bug listed in the Bugzilla tracking tool that affected me
> the other day,
> [15526](https://issues.dlang.org/show_bug.cgi?id=15526). It's not a
> big problem, just an unexpected issue and
On Wed, Oct 23, 2024 at 06:10:07PM +, Anton Pastukhov via
Digitalmars-d-learn wrote:
> On Wednesday, 23 October 2024 at 18:05:15 UTC, monkyyy wrote:
> >
> > Its intended and probably the right decision, but good luck finding
> > relivent docs.
>
> What's the motivation behind it? For me, it
On Tue, Oct 01, 2024 at 04:30:27PM +, Salih Dincer via Digitalmars-d-learn
wrote:
[...]
> > ```
> Please add this to your MyCon structure:
> ```d
> alias value this;
> // assert(num1 == 3.14);
> ```
> And test it like this too, I think it's awesome!
[...]
IMO it's not a good idea to recommend
On Tue, Oct 01, 2024 at 01:00:08AM +, Andy Valencia via Digitalmars-d-learn
wrote:
> I had an old atoi() I wrote when I was getting started with D. You know,
> fixed type, string in, int output. Today for fun I templated the type:
>
> T atoi(T)(string s)
[...]
It's all good and fun to try
On Sat, Sep 28, 2024 at 06:16:55PM +, Ian via Digitalmars-d-learn wrote:
> Hi,
>
> I'm coming from C and some C++ so the way D stores class instance
> variables is new to me. If I'm not mistaken the basic unadorned
> instance variable is like a "hidden" pointer. So, when passing class
> instan
On Fri, Sep 27, 2024 at 04:13:45PM -0400, thinkunix via Digitalmars-d-learn
wrote:
[...]
> I've seen a lot of "use auto everywhere" especially in C++ and was
> wondering where the D community stands on it's use. Is it generally
> favored or not?
>
> Personally, I think auto makes understanding c
On Fri, Jul 19, 2024 at 05:48:37PM +, Dennis via Digitalmars-d-learn wrote:
> On Friday, 19 July 2024 at 17:20:22 UTC, matheus wrote:
> > couldn't this case for example be caught during the compiling time?
>
> The RangeError is only thrown when at runtime, the key doesn't exist,
> so that can'
On Fri, Jul 19, 2024 at 09:34:13AM +, Lewis via Digitalmars-d-learn wrote:
> ```
> string[3][string] lookup;
> string[] dynArray = ["d", "e", "f"];
> lookup["test"] = dynArray[0..$];
> ```
>
> This fails at runtime with RangeError. But if I change that last line to:
>
> ```
> lookup["test"] =
On Tue, Jul 09, 2024 at 08:03:15PM +, kiboshimo via Digitalmars-d-learn
wrote:
> On Tuesday, 9 July 2024 at 14:42:01 UTC, monkyyy wrote:
> > On Tuesday, 9 July 2024 at 07:54:12 UTC, kiboshimo wrote:
[...]
> > > Really liked the idea of doing it with betterC to start my systems
> > > programmin
On Sun, Jul 07, 2024 at 02:41:31PM +, Andrey Zherikov via
Digitalmars-d-learn wrote:
> Seems different functions in std.path do not work together:
> ```d
> import std.path;
>
> // Error: no property `asNormaliedPath` for
> `dirName("/sandbox/onlineapp.d")` of type `string`
> auto p = __FILE_F
On Thu, Jun 27, 2024 at 10:14:06PM +, WhatMeWorry via Digitalmars-d-learn
wrote:
> Thanks, that did the trick. Not sure why having the declarations at
> global scope (or is it module scope in D) would work versus having
> them at local scope?
If you stuck 'static' to the local scope declarati
On Thu, Jun 27, 2024 at 08:56:13PM +, WhatMeWorry` via Digitalmars-d-learn
wrote:
> import std.container : RedBlackTree;
>
> int main()
> {
>
> struct Location {
> int x;
> int y;
> }
>
> struct Node{
> this(Location loc, uint f) {
> this.loc
On Tue, Jun 18, 2024 at 11:07:47PM +, Murilo via Digitalmars-d-learn wrote:
> I've created a software which performs the Fermat's Primality Test,
> however if I input a very big number it causes an error saying
> "Illegal instruction (core dumped)". Does anyone know why?
>
> I've used GDB and
On Thu, Jun 06, 2024 at 05:49:39PM +, Andy Valencia via Digitalmars-d-learn
wrote:
> I was using instance initialization which allocated a new object. My
> intention was this initialization would happen per-instance, but all
> instances appear to share the same sub-object? That is, f1.b and
On Wed, Apr 24, 2024 at 08:08:06AM +, Menjanahary R. R. via
Digitalmars-d-learn wrote:
> I tried to solve Project Euler [problem
> #2](https://projecteuler.net/problem=2) using
> [Recurrence/recurrence](https://dlang.org/library/std/range/recurrence.html).
>
> Assuming `genEvenFibonacci` is t
On Wed, Apr 03, 2024 at 09:57:00PM +, Liam McGillivray via
Digitalmars-d-learn wrote:
> On Friday, 29 March 2024 at 01:18:22 UTC, H. S. Teoh wrote:
> > Take a look at the docs for core.memory.GC. There *is* a method
> > GC.free that you can use to manually deallocate GC-a
On Fri, Apr 05, 2024 at 03:18:09PM +, Salih Dincer via Digitalmars-d-learn
wrote:
> Hi everyone,
>
> Technically r1 and r2 are different types of range. Isn't it
> inconsistent to chain both? If not, why is the char type converted to
> int?
[...]
It's not inconsistent if there exists a commo
On Thu, Mar 28, 2024 at 11:49:19PM +, Liam McGillivray via
Digitalmars-d-learn wrote:
> On Thursday, 28 March 2024 at 04:46:27 UTC, H. S. Teoh wrote:
> > The whole point of a GC is that you leave everything up to it to
> > clean up. If you want to manage your own memory, d
On Thu, Mar 28, 2024 at 10:10:43PM +, jms via Digitalmars-d-learn wrote:
> On Thursday, 28 March 2024 at 02:30:11 UTC, jms wrote:
[...]
> I think I figured it out and the difference is probably in the mode.
> This documentation
> https://learn.microsoft.com/en-us/cpp/c-runtime-library/reference
On Thu, Mar 28, 2024 at 05:23:39PM +, Andy Valencia via Digitalmars-d-learn
wrote:
[...]
> auto t = T();
> foreach (i, ref val; t.tupleof) {
> static if (is(typeof(val) == int)) {
> val = this.get_int();
> } else {
> val = this.get_str();
>
On Thu, Mar 28, 2024 at 03:56:10AM +, Liam McGillivray via
Digitalmars-d-learn wrote:
[...]
> I may be now starting to see why the use of a garbage collector is
> such a point of contention for D. Not being able to predict how the
> garbage collection process will happen seems like a major pro
On Wed, Mar 27, 2024 at 09:43:48PM +, Liam McGillivray via
Digitalmars-d-learn wrote:
[...]
> ```
> ~this() {
> this.alive = false;
> if (this.map !is null) this.map.removeUnit(this);
> if (this.faction !is null) this.faction.removeUnit(this);
> if (this.cur
On Sat, Mar 16, 2024 at 09:16:51PM +, Liam McGillivray via
Digitalmars-d-learn wrote:
> On Friday, 15 March 2024 at 00:21:42 UTC, H. S. Teoh wrote:
[...]
> > When dealing with units of data smaller than a byte, you generally
> > need to do it manually, because memory is not
On Thu, Mar 14, 2024 at 11:39:33PM +, Liam McGillivray via
Digitalmars-d-learn wrote:
[...]
> I tried to rework the functions to use bitwise operations, but it was
> difficult to figure out the correct logic. I decided that it's not
> worth the hassle, so I just changed the value storage from
On Thu, Mar 14, 2024 at 08:58:21PM +, Andy Valencia via Digitalmars-d-learn
wrote:
> On Thursday, 14 March 2024 at 18:05:59 UTC, H. S. Teoh wrote:
> > ...
> > The best way to do multi-type varags in D is to use templates:
> >
> > import std;
> >
On Thu, Mar 14, 2024 at 05:57:21PM +, Andy Valencia via Digitalmars-d-learn
wrote:
> Can somebody give me a starting point for understanding varadic
> functions? I know that we can declare them
>
> int[] args...
>
> and pick through whatever the caller provided. But if the caller
> wants
On Wed, Mar 06, 2024 at 11:39:13PM +, Carl Sturtivant via
Digitalmars-d-learn wrote:
> I notice that a class with no data members has a size of two words (at
> 64 bits). Presumably there's a pointer to a table of virtual
> functions, and one more. Is the Vtable first?
[...]
> What is actually
On Wed, Feb 28, 2024 at 03:00:55AM +, Liam McGillivray via
Digitalmars-d-learn wrote:
> In D, it appears that dynamic arrays (at least by default) use a ulong
> as their key type. They are declared like this:
> ```
> string[] dynamicArray;
> ```
>
> I imagine that using a 64-bit value as the
On Thu, Feb 15, 2024 at 02:17:15AM +, Basile B. via Digitalmars-d-learn
wrote:
> From what I remember, it was that there was no reference to the
> source. Things got blitted and you had to fix the copy, already
> blitted. Was that the only issue ?
I don't quite remember all of the reasons no
On Tue, Feb 13, 2024 at 06:36:22PM +, Nick Treleaven via
Digitalmars-d-learn wrote:
> On Monday, 12 February 2024 at 18:22:46 UTC, H. S. Teoh wrote:
[...]
> > Honestly, I think this issue is blown completely out of proportion.
> > The length of stuff in any language needs to
On Mon, Feb 12, 2024 at 07:34:36PM +, bachmeier via Digitalmars-d-learn
wrote:
> On Monday, 12 February 2024 at 18:22:46 UTC, H. S. Teoh wrote:
>
> > Honestly, I think this issue is blown completely out of proportion.
>
> Only for people that don't have to deal with
On Mon, Feb 12, 2024 at 05:26:25PM +, Nick Treleaven via
Digitalmars-d-learn wrote:
> On Friday, 9 February 2024 at 15:19:32 UTC, bachmeier wrote:
> > It's been discussed many, many times. The behavior is not going to
> > change - there won't even be a compiler warning. (You'll have to
> > che
On Sat, Feb 10, 2024 at 03:53:09PM +, Alexander Zhirov via
Digitalmars-d-learn wrote:
> Is it possible to calculate the difference between dates in years
> using regular means? Something like that
>
>
> ```
> writeln(Date(1999, 3, 1).diffMonths(Date(1999, 1, 1)));
> ```
>
> At the same time
On Thu, Feb 08, 2024 at 06:22:29PM +, Carl Sturtivant via
Digitalmars-d-learn wrote:
> On Wednesday, 7 February 2024 at 17:11:30 UTC, H. S. Teoh wrote:
> > Do we know why the compiler isn't getting it right? Shouldn't we be
> > fixing it instead of just turni
On Thu, Feb 08, 2024 at 05:44:59AM +1300, Richard (Rikki) Andrew Cattermole via
Digitalmars-d-learn wrote:
> On 08/02/2024 5:36 AM, Carl Sturtivant wrote:
[...]
> > ```
> > $ dmd --help | grep allinst
> > -allinst generate code for all template instantiations
> > ```
> > Unclear exactl
On Sat, Jan 20, 2024 at 02:33:24PM +, atzensepp via Digitalmars-d-learn
wrote:
> Hello,
>
> I am new with D and want to convert a c program for a csv file manipulation
> with exhaustive dynamic memory mechanics to D .
>
> When reading a CSV-file line by line I would like to create an associa
On Sat, Jan 20, 2024 at 01:35:44AM +0100, Daniel Kozak via Digitalmars-d-learn
wrote:
[...]
>> Try addressing the points I wrote above and see if it makes a
>> difference.
>
>I have tried it (all of it) even before you wrote it here, because
>I have completely the same ideas, but
On Fri, Jan 19, 2024 at 01:40:39PM +, Renato via Digitalmars-d-learn wrote:
> On Friday, 19 January 2024 at 10:15:57 UTC, evilrat wrote:
[...]
> > Additionally if you comparing D by measuring DMD performance -
> > don't. It is valuable in developing for fast iterations, but it
> > lacks many m
On Thu, Jan 18, 2024 at 04:23:16PM +, Renato via Digitalmars-d-learn wrote:
[...]
> Ok, last time I'm running this for someone else :D
>
> ```
> Proc,Run,Memory(bytes),Time(ms)
> ===> ./rust
> ./rust,23920640,30
> ./rust,24018944,147
> ./rust,24068096,592
> ./rust,24150016,1187
> ./rust,776601
On Thu, Jan 18, 2024 at 11:58:32PM +, zoujiaqing via Digitalmars-d-learn
wrote:
> On Thursday, 18 January 2024 at 23:43:13 UTC, Jonathan M Davis wrote:
> > On Thursday, January 18, 2024 4:26:42 PM MST zoujiaqing via
> > Digitalmars-d- learn wrote:
> > > ```D
> > > import std.datetime : Clock,
On Wed, Jan 17, 2024 at 07:57:02AM -0800, H. S. Teoh via Digitalmars-d-learn
wrote:
[...]
> I'll push the code to github.
[...]
Here: https://github.com/quickfur/prechelt/blob/master/encode_phone.d
T
--
Why do conspiracy theories always come from the same people??
On Wed, Jan 17, 2024 at 07:19:39AM +, Renato via Digitalmars-d-learn wrote:
[...]
> But pls run the benchmarks yourself as I am not going to keep running
> it for you, and would be nice if you posted your solution on a Gist
> for example, pasting lots of code in the forum makes it difficult to
On Wed, Jan 17, 2024 at 07:19:39AM +, Renato via Digitalmars-d-learn wrote:
> On Tuesday, 16 January 2024 at 22:13:55 UTC, H. S. Teoh wrote:
> > used for the recursive calls. Getting rid of the .format ought to
> > speed it up a bit. Will try that now...
> >
>
> T
On Tue, Jan 16, 2024 at 10:15:04PM +, Siarhei Siamashka via
Digitalmars-d-learn wrote:
> On Tuesday, 16 January 2024 at 21:15:19 UTC, Renato wrote:
[...]
> > ... what I am really curious about is what the code I wrote is doing
> > wrong that causes it to run 4x slower than Rust despite doing "
On Tue, Jan 16, 2024 at 09:15:19PM +, Renato via Digitalmars-d-learn wrote:
> On Tuesday, 16 January 2024 at 20:34:48 UTC, H. S. Teoh wrote:
> > On Tue, Jan 16, 2024 at 12:28:49PM -0800, H. S. Teoh via
> > Digitalmars-d-learn wrote: [...]
> > > Anyway, I've fixe
On Tue, Jan 16, 2024 at 12:28:49PM -0800, H. S. Teoh via Digitalmars-d-learn
wrote:
[...]
> Anyway, I've fixed the problem, now my program produces the exact same
> output as Renato's repo. Code is posted below.
[...]
Oops, forgot to actually paste the
ent
excluding many more matching possibilities, effectively pruning away
large parts of the search tree.
> @"H. S. Teoh" you implemented the solution as a Trie!! Nice, that's
> also what I did when I "participated" in the study. Here's [my Trie
> solut
P.S. Compiling my program with `ldc -O2`, it runs so fast that I
couldn't measure any meaningful running time that's greater than startup
overhead. So I wrote a helper program to generate random phone numbers
up to 50 characters long, and found that it could encode 1 million phone
numbers in 2.2 s
On Tue, Jan 16, 2024 at 07:50:35AM -0800, H. S. Teoh via Digitalmars-d-learn
wrote:
[...]
> Unfortunately there seems to be some discrepancy between the output I
> got and the prescribed output in your repository. For example, in your
> output the number 1556/0 does not have an enco
On Mon, Jan 15, 2024 at 08:10:55PM +, Renato via Digitalmars-d-learn wrote:
> On Monday, 15 January 2024 at 01:10:14 UTC, Sergey wrote:
> > On Sunday, 14 January 2024 at 17:11:27 UTC, Renato wrote:
> > > If anyone can find any flaw in my methodology or optmise my code so
> > > that it can still
On Mon, Jan 15, 2024 at 06:16:44PM +, Bastiaan Veelo via
Digitalmars-d-learn wrote:
> Hey people, I can use some help understanding why the last line
> produces a compile error.
>
> ```d
> import std.stdio;
>
> struct S
> {
> static void foo(alias len)()
[...]
The trouble is with the `s
On Mon, Jan 08, 2024 at 05:28:50PM +, matheus via Digitalmars-d-learn wrote:
> Hi,
>
> I was doing some tests and this code:
>
> import std;
>
> struct S{
> string[] s = ["ABC"];
> int i = 123;
> }
[...]
It's not recommended to use initializers to initialize mutable
array-valued mem
On Fri, Jan 05, 2024 at 08:41:53PM +, Noé Falzon via Digitalmars-d-learn
wrote:
> On the subject of `map` taking the function as template parameter, I
> was surprised to see it could still be used with functions determined
> at runtime, even closures, etc. I am trying to understand the
> mecha
On Wed, Jan 03, 2024 at 04:50:57PM +, axricard via Digitalmars-d-learn
wrote:
> I have an interface that is implemented by many classes, and I want to
> pick one of these implementations at random. There are two more
> constraints : first the distribution is not uniform, all classes can
> defi
On Fri, Dec 22, 2023 at 09:40:03PM +, bomat via Digitalmars-d-learn wrote:
> On Friday, 22 December 2023 at 16:51:11 UTC, bachmeier wrote:
> > Given how fast computers are today, the folks that focus on memory
> > and optimizing for performance might want to apply for jobs as
> > flooring inspe
On Fri, Dec 22, 2023 at 07:22:15PM +, Dmitry Ponyatov via
Digitalmars-d-learn wrote:
> > It's called GC phobia, a knee-jerk reaction malady common among
> > C/C++ programmers
>
> I'd like to use D in hard realtime apps (gaming can be thought as one
> of them, but I mostly mean realtime dynami
On Mon, Dec 18, 2023 at 04:44:11PM +, Bkoie via Digitalmars-d-learn wrote:
[...]
> but what is with these ppl and the gc?
[...]
It's called GC phobia, a knee-jerk reaction malady common among C/C++
programmers (I'm one of them, though I got cured of GC phobia thanks to
D :-P). 95% of the time
On Wed, Dec 13, 2023 at 11:58:42AM -0800, H. S. Teoh via Digitalmars-d-learn
wrote:
[...]
> Add a module declaration to your source file. For example:
>
> echo 'module abc; import std; void main(){writefln(__MODULE__);}' | dmd
> -run -
>
> Output:
>
On Wed, Dec 13, 2023 at 07:37:09PM +, Siarhei Siamashka via
Digitalmars-d-learn wrote:
> Example:
>
> ```D
> import std;
> void main() {
> deliberate syntax error here
> }
> ```
>
> ```bash
> $ cat example.d | dmd -run -
> __stdin.d(3): Error: found `error` when expecting `;` or `=`, did y
On Wed, Dec 06, 2023 at 04:24:51AM +0900, confuzzled via Digitalmars-d-learn
wrote:
[...]
> import std.stdio;
> void main()
> {
> F fp;
> fp.lo.writeln; // Why is this not zero? How is this value derived?
> fp.hi.writeln; // expected
> fp.x.writeln; // expected
>
> fp.x =
>
On Mon, Dec 04, 2023 at 11:46:45PM +, DLearner via Digitalmars-d-learn
wrote:
[...]
> Basically, B corresponds to the whole record (and only a whole record
> can be read).
> But the task only requires Var1 and Var2, the last two fields on the record.
> By putting all the irrelevant fields into
On Thu, Nov 23, 2023 at 07:22:22PM +, BoQsc via Digitalmars-d-learn wrote:
> Is it possible to declare empty pointer variable inside function calls
> and pass its address to the function?
>
> These are sometimes required while using Win32 - Windows Operating
> System API.
>
> * Empty pointer
On Fri, Nov 03, 2023 at 12:19:48AM +, Andrey Zherikov via
Digitalmars-d-learn wrote:
> On Thursday, 2 November 2023 at 19:43:01 UTC, Adam D Ruppe wrote:
> > On Thursday, 2 November 2023 at 19:30:58 UTC, Jonathan M Davis wrote:
> > > The entire reason that it was added to the language was to be
On Wed, Oct 11, 2023 at 02:54:53AM +, mw via Digitalmars-d-learn wrote:
> Hi,
>
> I want to confirm: in the following loop, is the array literal `a` vs.
> `b` stack or heap allocated? and how many times?
>
> void main() {
>
> int[2] a;
This is stack-allocated. Once per call to the function.
On Sat, Oct 07, 2023 at 12:00:48AM +, claptrap via Digitalmars-d-learn
wrote:
>
> char[] foo;
> foo.length = 4;
> foo[] = 'a'; // ok sets all elements
> foo[] = "a"; // range error at runtime?
> foo[] = "ab"; // range error at runtime?
>
> So I meant to init with a char literal but accidentl
On Mon, Sep 11, 2023 at 10:39:00PM +, Salih Dincer via Digitalmars-d-learn
wrote:
> On Monday, 11 September 2023 at 22:13:25 UTC, H. S. Teoh wrote:
> >
> > Because sometimes I want a specific type.
> >
>
> it's possible...
>
> ```d
> alias ST = Op
On Mon, Sep 11, 2023 at 10:05:11PM +, Salih Dincer via Digitalmars-d-learn
wrote:
> On Monday, 11 September 2023 at 20:17:09 UTC, H. S. Teoh wrote:
> >
> > Someone should seriously come up with a way of eliminating the
> > repeated type name in default parameters.
>
On Mon, Sep 11, 2023 at 07:59:37PM +, ryuukk_ via Digitalmars-d-learn wrote:
[...]
> Recent version of D added named arguments so you can do something
> like:
>
> ```D
> void someFunction(Options option = Options(silenceErrors: false))
> ```
>
> I don't like the useless repeating "option opti
On Sat, Sep 09, 2023 at 09:21:32AM +, rempas via Digitalmars-d-learn wrote:
> On Saturday, 9 September 2023 at 08:54:14 UTC, Brad Roberts wrote:
> > I'm pretty sure this is your problem. You're allocating size bytes
> > which is only going to work where sizeof(T) == 1. Changing to
> > malloc(
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