On Wed, Nov 25, 2020 at 06:44:52PM +, NonNull via Digitalmars-d-learn wrote:
> For automatically generated code of some low level kinds it is
> convenient to have "computed goto" like this:
>
> https://gcc.gnu.org/onlinedocs/gcc/Labels-as-Values.html
>
> and D does not have this.
>
> A
On Fri, Nov 20, 2020 at 02:52:41PM +, Adam D. Ruppe via Digitalmars-d-learn
wrote:
> On Friday, 20 November 2020 at 14:47:52 UTC, Paul Backus wrote:
> > There is no way to create an anonymous template in D.
>
> I wish there was, maybe some day we can think of a way to add it to
> the
On Fri, Nov 20, 2020 at 02:47:52PM +, Paul Backus via Digitalmars-d-learn
wrote:
[...]
> In this specific case, you could also make `foo` a type-safe variadic
> function [1], which would eliminate the need for `allSatisfy`:
>
> void foo(double[] args...)
> {
> // ...
> }
On Fri, Nov 20, 2020 at 11:03:18AM +0100, Daniel Kozak via Digitalmars-d-learn
wrote:
[...]
>I remember days when I liked UFCS too . Unfortunately it is not so
>awesome when you use it with IDE. So I am now avoiding UFCS as much
>as possible and it is a much better experience for me.
On Sun, Nov 15, 2020 at 10:06:55AM +, Martin via Digitalmars-d-learn wrote:
> On Sunday, 15 November 2020 at 00:29:41 UTC, H. S. Teoh wrote:
> > if you don't like the semantics, don't use it; always allocate the
> > field in the class ctor instead.
>
> Hi, i neither like it nor dislike it -
On Sat, Nov 14, 2020 at 11:20:55PM +, Martin via Digitalmars-d-learn wrote:
> Hi, i do no know if this is intended - but imo this is weird:
> https://run.dlang.io/is/eBje3A
>
> I expected that `c.a.str == ""` (just like `c.str` is). But instead
> `c.a.str` keeps the value of `b.a.str`.
>
>
On Sat, Nov 14, 2020 at 05:55:13PM +, WhatMeWorry via Digitalmars-d-learn
wrote:
>
> I was poking around the dmd code just to "learn from the best"
IMNSHO, Phobos is more representative of typical D code than dmd; dmd
code was automatically translated from C++, so a lot of it may still
have
On Wed, Nov 11, 2020 at 01:05:21AM +, SealabJaster via Digitalmars-d-learn
wrote:
> Please see the code at https://run.dlang.io/is/Yjidek
[Quoting code in full here for future reference]
> struct PreValidate
> {
> alias FuncT = bool delegate(string arg);
>
> FuncT func;
>
>
On Tue, Nov 10, 2020 at 01:00:50AM +, Mark via Digitalmars-d-learn wrote:
[...]
> my question would be about using D or not using D. Is the newest C++
> iteration any good compared to D?
[...]
> I haven't looked into the newest C++. In theory, they might have added
> something helpful in the
On Mon, Nov 09, 2020 at 03:39:05PM +, Per Nordlöw via Digitalmars-d-learn
wrote:
> Is there any library that can deal with decoding and generating
> character matchers for Unicode regular expression described at
>
> https://www.regular-expressions.info/unicode.html
I'm pretty sure std.regex
On Fri, Nov 06, 2020 at 07:17:53PM +, Selim Ozel via Digitalmars-d-learn
wrote:
> On Thursday, 5 November 2020 at 22:36:36 UTC, Anonymouse wrote:
> > If I'm not mistaken the `csvReader` function returns a range struct,
> > and the full type is something long and unwieldy like
> >
On Fri, Nov 06, 2020 at 03:36:46PM +, Paul Backus via Digitalmars-d-learn
wrote:
[...]
> User-defined implicit conversions are one of the most error-prone
> features of C++, and have been deliberately excluded from D, with the
> exception of `alias this`.
And Walter is already expressing
On Thu, Nov 05, 2020 at 10:48:38PM +, Marcone via Digitalmars-d-learn wrote:
> How add class or struct member after construction? Is it possible in
> D? How?
You can't, because D is statically-typed.
However, you *can* implement something equivalent manually by other
means, depending on your
On Tue, Nov 03, 2020 at 10:42:55AM -0800, Ali Çehreli via Digitalmars-d-learn
wrote:
> -i is a useful feature:
>
> https://dlang.org/dmd-linux.html
>
> Does dmd compile auto-included files separately? Does it generate
> temporary object files? If so, where does it write the files? Would -i
>
On Thu, Oct 29, 2020 at 04:56:46PM +, IGotD- via Digitalmars-d-learn wrote:
> On Thursday, 29 October 2020 at 16:45:51 UTC, Ali Çehreli wrote:
> >
> > import std;
> >
> > immutable string p;
> >
> > shared static this() {
> > p = environment["PATH"]; // <-- Run time
> > }
> >
>
> Just
On Thu, Oct 29, 2020 at 11:00:42AM -0400, Steven Schveighoffer via
Digitalmars-d-learn wrote:
> On 10/29/20 10:39 AM, H. S. Teoh wrote:
> > On Thu, Oct 29, 2020 at 09:50:28AM -0400, Steven Schveighoffer via
> > Digitalmars-d-learn wrote:
> > [...]
> > > D frequently allows no-op attributes.
> >
On Thu, Oct 29, 2020 at 09:50:28AM -0400, Steven Schveighoffer via
Digitalmars-d-learn wrote:
[...]
> D frequently allows no-op attributes.
[...]
I find that to be a bad smell in terms of language design, actually.
Either something should be allowed and have a definite effect, or it
should not
On Thu, Oct 29, 2020 at 08:13:42AM +, Jan Hönig via Digitalmars-d-learn
wrote:
[...]
> Is there some rule of thumb when to use what?
>
> I judge that using enum will slow down the compilation process, but
> might increase performance.
Nah. The slowdown is practically indiscernible. You
On Thu, Oct 29, 2020 at 09:06:21AM +, Jan Hönig via Digitalmars-d-learn
wrote:
> On Thursday, 29 October 2020 at 09:01:12 UTC, Jan Hönig wrote:
> > This would mean, that this one should work as well.
>
> It does not work as I intended, as `() => {}` has not the return type
> of `void`.
>
>
On Wed, Oct 28, 2020 at 10:52:33PM +, Adam D. Ruppe via Digitalmars-d-learn
wrote:
> On Wednesday, 28 October 2020 at 22:43:12 UTC, mw wrote:
> > I wonder what's the best way to resolve this conflict, i.e my local
> > file name with 3rd party library dir name.
>
> Don't write any module with
On Wed, Oct 28, 2020 at 09:54:19PM +, Jan Hönig via Digitalmars-d-learn
wrote:
> Maybe this is a silly question, but I don't understand completely the
> difference between an `enum` and a `shared immutable`.
>
> I could have:
>
> enum x = 1;
>
> or
>
> shared immutable x = 1;
>
> What is
On Wed, Oct 28, 2020 at 06:54:01PM +, Vino via Digitalmars-d-learn wrote:
> Hi All,
>
>Is it possible to create an associative array using
> std.container.array, if possible can you please provide me an example
> nor send me some link which has this information.
On Wed, Oct 28, 2020 at 03:15:40PM +, Paul via Digitalmars-d-learn wrote:
> per the D sample wc2.d
> size_t[string] dictionary; <-is printed by...
> .
> foreach (word1; dictionary.keys.sort) writef etc
>
> I want to print the dictionary sorted by value not key. I can write
> an
On Mon, Oct 26, 2020 at 11:36:12PM +, Per Nordlöw via Digitalmars-d-learn
wrote:
> I need a string template system for generation of parsers in D code to
> compiled in separate phase (not Pegged).
>
> What packages is there for this?
Adela Vais is working on D support for GNU bison, a
On Thu, Oct 22, 2020 at 03:32:57PM +, Andrey Zherikov via
Digitalmars-d-learn wrote:
> There are two ways how __FILE__, __LINE__ etc. can se used in function
> parameters: as regular parameters and as template parameters:
[...]
> What is recommended way?
> What are pros/cons of each case?
I
On Fri, Oct 16, 2020 at 08:04:07PM +, Imperatorn via Digitalmars-d-learn
wrote:
[...]
> I think it might be just because you havent defined the function yet
> at that point.
That's not correct; the following works:
module mymodule;
void func() {
On Fri, Oct 16, 2020 at 07:55:53PM +, wilcro via Digitalmars-d-learn wrote:
> The web page "Programming in D for C Programmers"
> (https://dlang.org/articles/ctod.html#forwardfunc) states that forward
> declarations are neither required nor permitted,
[...]
> However, the following code will
On Thu, Oct 15, 2020 at 09:47:16PM +, IGotD- via Digitalmars-d-learn wrote:
> On Thursday, 15 October 2020 at 21:29:59 UTC, WhatMeWorry wrote:
> >
> > I've go a small DLL and a test module both written in D. Why do I
> > need to use the extern(C)? Shouldn't both sides be using D name
> >
On Wed, Oct 14, 2020 at 05:30:37PM +, Andre Pany via Digitalmars-d-learn
wrote:
> On Wednesday, 14 October 2020 at 16:39:39 UTC, Imperatorn wrote:
> > On Wednesday, 14 October 2020 at 15:27:46 UTC, Andre Pany wrote:
[...]
> > > Please add this to your dub.json file:
> > > "versions": [
On Mon, Oct 12, 2020 at 05:51:21AM +, Imperatorn via Digitalmars-d-learn
wrote:
> On Monday, 12 October 2020 at 00:59:33 UTC, Adam D. Ruppe wrote:
> > On Monday, 12 October 2020 at 00:46:37 UTC, Imperatorn wrote:
> > > To people trying to learn, why is that % before ( needed in the
> > >
On Sun, Oct 11, 2020 at 01:26:13PM +, Alaindevos via Digitalmars-d-learn
wrote:
> Sidenote, sort also not works with static arrays.
Just slice it with [].
T
--
I think the conspiracy theorists are out to get us...
On Wed, Oct 07, 2020 at 07:15:42PM +, aberba via Digitalmars-d-learn wrote:
[...]
> It seems the D ecosystem is not immediately obvious to some people.
> Dub, compilers, and IDEs are recurring issues.
This is stuff that needs to be documented up-front and in-your-face. For
example, if we're
On Tue, Oct 06, 2020 at 10:18:39PM +, Alaindevos via Digitalmars-d-learn
wrote:
> I have a large table consisting of two columns.One with words.Another
> with frequencies. I want to sort them efficiently according to the
> names or frequency.
> For this I need an efficient sort function where
On Tue, Sep 29, 2020 at 06:14:45PM +, Chloé Kekoa via Digitalmars-d-learn
wrote:
> On Tuesday, 29 September 2020 at 17:04:51 UTC, H. S. Teoh wrote:
> > OTOH, the relevant Unicode data file that contains East_Asian_Width
> > data (EastAsianWidth.txt) is relatively straightforward to parse.
> >
On Tue, Sep 29, 2020 at 09:56:41AM +, ikod via Digitalmars-d-learn wrote:
> Hello,
>
> Sorry if I unintentionally hurt anybody in this thread.
> I'll try to implement sane and correct iteration behavior for AA
> without noticeable performance loss, and propose it if I succeed.
No feelings
On Tue, Sep 29, 2020 at 04:22:18PM +, Dukc via Digitalmars-d-learn wrote:
> On Monday, 28 September 2020 at 18:23:43 UTC, Chloé Kekoa wrote:
> > The documentation of std.uni [1] says that the unicode struct
> > provides sets for several binary properties. I am looking for a way
> > to query
On Mon, Sep 28, 2020 at 08:04:49PM +, ikod via Digitalmars-d-learn wrote:
> On Monday, 28 September 2020 at 19:18:20 UTC, H. S. Teoh wrote:
[...]
> > The problem with arbitrary, unrestricted modification of a container
> > while iterating over it, is that it inevitably leads to
> >
On Mon, Sep 28, 2020 at 05:18:41PM +, ikod via Digitalmars-d-learn wrote:
> On Monday, 28 September 2020 at 14:58:15 UTC, Steven Schveighoffer wrote:
[...]
> > One could write a specific function to iterate and remove. I
>
> This looks like dead end to me, as you may not only remove items
On Sun, Sep 27, 2020 at 01:59:07PM +, DMon via Digitalmars-d-learn wrote:
> Are these in the Specification or Phobos?
See: https://dlang.org/articles/d-array-article.html
T
--
Государство делает вид, что платит нам зарплату, а мы делаем вид, что работаем.
On Sun, Sep 27, 2020 at 01:02:04PM +, Per Nordlöw via Digitalmars-d-learn
wrote:
> Is it safe to remove AA-elements from an `aa` I'm iterating over via
> aa.byKeyValue?
No. Modifying a container while iterating over it is, in general, a bad
idea (unless the container is designed to be used
On Fri, Sep 25, 2020 at 05:58:08PM +, 60rntogo via Digitalmars-d-learn
wrote:
> On Friday, 25 September 2020 at 15:21:22 UTC, Steven Schveighoffer wrote:
> > If the input is not ref, you should not return by ref, because then
> > you would be returning a reference to local stack data that is
On Thu, Sep 24, 2020 at 08:36:38PM -0400, James Blachly via Digitalmars-d-learn
wrote:
> On 9/24/20 6:22 PM, mw wrote:
[...]
> > I'm just wondering what's the best way to convert sysTime to local
> > machine's time (zone)?
[...]
> It is definitely not easy to find.
>
>
On Wed, Sep 23, 2020 at 07:08:47PM +, data pulverizer via
Digitalmars-d-learn wrote:
> On Wednesday, 23 September 2020 at 18:56:33 UTC, wjoe wrote:
> >
> > It doesn't occur to me that the compiler doesn't know at compile
> > time that
> >
> > interface IFoo{}
> > class Foo: IFoo {}
> >
> >
Try this:
interface I {}
class C : I {}
class D {}
struct S {}
pragma(msg, is(C : I)); // true
pragma(msg, is(D : I)); // false
pragma(msg, is(S : I)); // false
So probably what you want is something like this:
void register(C,
On Mon, Sep 21, 2020 at 07:43:30PM -0400, Steven Schveighoffer via
Digitalmars-d-learn wrote:
[...]
> No, it's not a bug. It's intentional.
>
> private and package functions are final, and we aren't going to change
> that now, even if it makes sense to make them virtual.
[...]
Whoa. But why??
On Mon, Sep 21, 2020 at 11:17:13PM +, claptrap via Digitalmars-d-learn
wrote:
> Seems like a completely pointless restriction to me.
[...]
It looks like a bug to me. Please file one if there isn't already one:
https://issues.dlang.org/
T
--
Computerese Irregular Verb
On Sat, Sep 19, 2020 at 08:26:36AM +, Imperatorn via Digitalmars-d-learn
wrote:
> What are some good examples of pretty large/medium size, good
> structured repos in D? I'm looking for examples to learn from
[...]
Phobos itself. I have to say, it's the most readable programming
language
On Fri, Sep 18, 2020 at 06:20:41PM +, Andrey Zherikov via
Digitalmars-d-learn wrote:
> How can I rewrite foo() function as a free-function that won't cause
> struct copying? My simplified code is:
>
> struct S
> {
> ref S foo() return
> {
> return this;
> }
> }
>
On Fri, Sep 18, 2020 at 08:20:59AM +, IGotD- via Digitalmars-d-learn wrote:
> On Friday, 18 September 2020 at 05:02:21 UTC, H. S. Teoh wrote:
> >
> > That's the obvious solution, except that actually implementing it is not
> > so simple. When you have multiple threads listening for each
On Thu, Sep 17, 2020 at 09:53:07PM -0400, James Blachly via Digitalmars-d-learn
wrote:
[...]
> I never considered this -- so when I call core.stdc.stdlib : exit,
> none of my destructors get called?
Yes.
> Presumably also not scope(exit) blocks?
Yes.
> If this is the case, could we simply
On Thu, Sep 17, 2020 at 06:06:56PM -0400, Steven Schveighoffer via
Digitalmars-d-learn wrote:
> On 9/17/20 9:13 AM, Simen Kjærås wrote:
>
> > To be clear: I don't mind 'enum' being used this way, but if I were
> > to do things over again, I would have used 'alias'.
>
> fun fact: for a (very)
On Thu, Sep 17, 2020 at 08:40:06PM +, wjoe via Digitalmars-d-learn wrote:
> On Thursday, 17 September 2020 at 19:27:41 UTC, Adam D. Ruppe wrote:
> > fyi my baby was just born i'll come back to this but it might be a
> > day or two
[...]
"A day or two"??! More likely a month for starters. :-D
On Thu, Sep 17, 2020 at 02:58:48PM +, drathier via Digitalmars-d-learn
wrote:
> What's the proper way to exit with a specific exit code?
>
> I found a bunch of old threads discussing this, making sure
> destructors run and the runtime terminates properly, all of which
> seemingly concluding
On Mon, Sep 14, 2020 at 09:49:13PM -0400, James Blachly via Digitalmars-d-learn
wrote:
> I wish to write a function including ∂x and ∂y (these are trivial to
> type with appropriate keyboard shortcuts - alt+d on Mac), but without
> a unicode byte order mark at the beginning of the file, the lexer
On Sat, Sep 12, 2020 at 07:31:57PM +, mw via Digitalmars-d-learn wrote:
[...]
> I've tried something like this: the AliasSeq specify the logical
> divide
>
>printRandomElemAddr(AliasSeq!(extraA, extraB, extraC, extraD), a, b, c);
>
> but cannot make it work.
Yes, because AliasSeq
On Fri, Sep 04, 2020 at 07:36:00PM +0200, Jacob Carlborg via
Digitalmars-d-learn wrote:
[...]
> It's useful for serialization and, as you can see in your example, for
> debugging as well. `writeln` will print the values of the fields in a
> struct, even for private fields.
It's certainly useful,
On Thu, Sep 03, 2020 at 06:18:00PM +, Mike Brown via Digitalmars-d-learn
wrote:
[...]
> I did however, get taken in by how small and precise the D code was
> compared to my C++ equivalent. The templating is beautiful, I’m now
> considering writing in D rather than C++ as the smaller and
On Mon, Aug 31, 2020 at 08:39:10PM +, Andrey Zherikov via
Digitalmars-d-learn wrote:
> On a low level, I want something like this code to work:
> string[] arr; // this can be any suitable type
>
> arr ~= "a";// data is compile-time constant
>
> enum f = arr[0]; //
On Tue, Aug 25, 2020 at 03:02:14PM +, FreeSlave via Digitalmars-d-learn
wrote:
> On Tuesday, 25 August 2020 at 03:41:06 UTC, Jon Degenhardt wrote:
> > What's the best way to get the element type of an array at compile
> > time?
> >
> > Something like std.range.ElementType except that works
On Tue, Aug 25, 2020 at 03:41:06AM +, Jon Degenhardt via
Digitalmars-d-learn wrote:
> What's the best way to get the element type of an array at compile
> time?
>
> Something like std.range.ElementType except that works on any array
> type. There is std.traits.ForeachType, but it wasn't
On Thu, Aug 20, 2020 at 04:28:41AM +, Arun via Digitalmars-d-learn wrote:
> Which version of DMD is GDC 10 based on?
Compile the following D program to find out:
-
static assert(0, "Compiler language version: " ~ __VERSION__.stringof);
-
I have this line in a file called langver.d,
On Wed, Aug 19, 2020 at 10:47:19PM +, data pulverizer via
Digitalmars-d-learn wrote:
> Hi all,
>
> I've been looking for where `CoreUnqual` is defined in the Dlang
> repos. I've tried searching in dmd and phobos but only found the
> reference usage in std.traits:
>
> import
On Wed, Aug 19, 2020 at 08:09:31PM +, bachmeier via Digitalmars-d-learn
wrote:
[...]
> Maybe I'm the only one, but I think double*[] is hideous, and I'd sure
> hate for someone not used to D to see it.
IMO, double*[] is absolutely logical. It's a natural consequence of type
syntax.
> Alias
On Tue, Aug 18, 2020 at 05:34:58AM +, novice3 via Digitalmars-d-learn wrote:
[...]
> The problem is:
> if i use fmt.spec in overloaded toString(),
> when i get error "phobos/std/format.d(2243): Error: no property ip for
> type onlineapp.IpV4Address"
Here's a working example:
On Mon, Aug 17, 2020 at 02:29:47PM +, novice3 via Digitalmars-d-learn wrote:
[...]
> ```
> struct IpV4Address
> {
> private uint ip;
> alias ip this;
>
> string toString()
> {
> import std.conv: to;
> return to!string((ip >>> 24) & 0xFF) ~ "." ~
>to!string((ip >>>
On Mon, Aug 17, 2020 at 12:20:24AM +, Cecil Ward via Digitalmars-d-learn
wrote:
> In a lambda, how do we know what types the arguments are? In something
> like
> (x) => x * x
It's implemented as a template, whose argument types are inferred based
on usage context.
> - there I just
On Thu, Aug 13, 2020 at 08:30:44AM +, Jonathan via Digitalmars-d-learn
wrote:
[...]
> Is there a reason you need to run all unittests every time you want to
> run the program?
During development, this is a valuable time-saver: instead of compiling
twice, once with -unittest and once without,
On Sat, Aug 08, 2020 at 01:47:27AM +, jmh530 via Digitalmars-d-learn wrote:
> On Friday, 7 August 2020 at 21:39:44 UTC, H. S. Teoh wrote:
> > [snip]
>
> "Furthermore, it can dispatch to a type-erased implementation ala Java
> -- at your choice;"
>
> This is interesting. Would you just cast
On Fri, Aug 07, 2020 at 09:03:47PM +, aberba via Digitalmars-d-learn wrote:
> Syntactically they look the same (although D's can do more things) so
> I'm trying to understand how why in D it's called template but in
> languages like C#/Java they're generics.
>
> I guess I have fair
On Fri, Aug 07, 2020 at 09:02:03PM +, Per Nordlöw via Digitalmars-d-learn
wrote:
> On Thursday, 6 August 2020 at 22:24:43 UTC, Paul Backus wrote:
> > [1] https://dlang.org/spec/expression.html#is_expression
>
> I bet there a several places in Phobos where this feature isn't but
> could be
On Thu, Aug 06, 2020 at 01:07:14PM +, Per Nordlöw via Digitalmars-d-learn
wrote:
[...]
> However, your solution
>
> template maxSize(T...)
> {
> align(1) union Impl { T t; }
> enum maxSize = Impl.sizeof;
> }
>
> fails as
>
> variable `std.variant.maxSize!(void,
On Thursday, 6 August 2020 at 00:58:39 UTC, Per Nordlöw wrote:
Is it possible to implement
template maxSizeOf(T...)
{
static if (T.length == 1)
enum size_t maxSizeOf = T[0].sizeof;
else
{
enum size_t firstSize = T[0].sizeof;
enum size_t maxSizeRest =
On Wed, Aug 05, 2020 at 06:02:58AM +, cy via Digitalmars-d-learn wrote:
> D's compile-time-execution is fantastic, but there are some times when
> I'd like to examine the generated code, or produce code that needs to
> pass through earlier phases before CTFE, or do AST stuff. Sometimes I
>
On Mon, Aug 03, 2020 at 08:16:57PM -0700, Ali Çehreli via Digitalmars-d-learn
wrote:
[...]
> UDAs were added to D by a request from Manu Evans and that's when I
> learned them. In one of Manu's use cases they would put a @Tweakable
> attribute to certain struct members. The effect of that
On Mon, Aug 03, 2020 at 03:00:08AM +, Cecil Ward via Digitalmars-d-learn
wrote:
> When practically speaking would you use UDAs? A real-world use-case?
There are probably more use cases than this, but for me, their primary
usefulness is in declarative programming and compile-time
On Thu, Jul 30, 2020 at 06:52:42PM +, sportsracer via Digitalmars-d-learn
wrote:
[...]
> int[] xs = new int[100];
> const chunked = xs.chunks(10);
> writeln(chunked[0][0]);
> }
>
> Error: mutable method std.range.Chunks!(int[]).Chunks.opIndex is not
> callable using a const
On Thu, Jul 30, 2020 at 01:41:05PM +, Oleg B via Digitalmars-d-learn wrote:
[...]
> Logically we can compare versions, but what must return `opCmp` if one of
> versions has 'not comparible' state?
[...]
opCmp is allowed to return float; so you could return float.nan in this
case.
T
--
On Mon, Jul 27, 2020 at 11:39:32AM +, John Burton via Digitalmars-d-learn
wrote:
[...]
> I tried looking there for information and examples of getting glfw3
> statically linked into my program using LDC and didn't really find
> anything.
>
> I wonder if adding a page for static linking tips
On Sun, Jul 26, 2020 at 07:10:41AM +, Charles via Digitalmars-d-learn wrote:
> Suppose I have the following line of code where arr is an array,
> doSomething is some predicate that does a lot of processing on each
> element, sort must come after the mapping, and there are more
> operations
On Mon, Jul 20, 2020 at 04:55:52PM -0400, Steven Schveighoffer via
Digitalmars-d-learn wrote:
> I am doing some scripting via D, and using std.process.execute to git
> clone things.
>
> I don't want any user interaction. Occasionally, I get a repository
> that no longer exists (404). Then git
On Sat, Jul 18, 2020 at 04:00:09PM +, Dukc via Digitalmars-d-learn wrote:
> I have a project where I need to take and send UDP packets over the
> Internet. Only raw UDP - my application uses packets directly, with
> their starting `[0x5a, packet.length.to!ubyte]` included. And only
>
On Wed, Jul 15, 2020 at 09:27:22PM +, tastyminerals via Digitalmars-d-learn
wrote:
[...]
> D wiki is badly outdated. This is not a fact but a gut feeling after
> reading through some of its pages. I was wondering who's owning it
> myself but never actually dared to just go and update.
Why
On Wed, Jul 15, 2020 at 04:04:56PM +, aberba via Digitalmars-d-learn wrote:
> So I'm looking to make changes to the D wiki but I'm not sure who to
> talk to about such changes.
>
> Currently: Move all other IDEs low-quality down (maybe to Others) and
> focus on just the few that really works
On Sat, Jul 11, 2020 at 04:28:32AM +, cy via Digitalmars-d-learn wrote:
> hunt/source/hunt/serialization/JsonSerializer.d:125:20: error: basic
> type expected, not foreach
> 125 | static foreach (string member; FieldNameTuple!T) {
>
> I'm having a little trouble using the hunt
On Thu, Jul 09, 2020 at 06:02:02PM +, IGotD- via Digitalmars-d-learn wrote:
[...]
> Is this the reason that ubyte[arraySize] doesn't create a dynamic
> array with size arraySize?
>
> Now you need to do.
>
> ubyte[] arr;
> arr.length = arraySize;
Nah, just do this:
arr = new
On Thu, Jul 09, 2020 at 05:24:33PM +, matheus via Digitalmars-d-learn wrote:
[...]
> I wonder if the question was more like intended to display the value
> using pointers, ie:
>
> import std.stdio;
>
> void main(){
> int i;
> readf("%d\n", i);
> int *p =
> writeln(*p);
> }
>
On Thu, Jul 09, 2020 at 04:16:53PM +, Quantium via Digitalmars-d-learn
wrote:
> I have one more question. I tested the programm, as you said, it
> worked rarely because of OS restrictions. If I compile that code to
> dll, and run it through dll launcher, should it work?
No, it's subject to
On Thu, Jul 09, 2020 at 12:12:06PM +, wjoe via Digitalmars-d-learn wrote:
> + The size is known at compile time.
>
> vs.
>
> - Can neither grow nor shrink them
> - Can't append elements
> - Can't remove elements
Consider a 3D game in which you represent vectors as static arrays of 4
On Wed, Jul 08, 2020 at 08:11:05PM +, IGotD- via Digitalmars-d-learn wrote:
[...]
> Doing the same in D, would with my lack of knowledge look like this.
>
>
> size_t mySize(T)()
> {
> return T.sizeof + 42;
> }
What you want is:
enum mySize(T) = T.sizeof + 42;
And there is no
On Wed, Jul 01, 2020 at 05:04:28AM +, Anthony via Digitalmars-d-learn wrote:
[...]
> auto str_utf8 = str.toUTF8();
> bson_error_t error
>
> auto bson = bson_new_from_json(cast(const uint8_t*)str_utf8.ptr, -1,
> );
>
>
> I get a "Program exited with code -11" message.
> Does anyone know what
On Tue, Jun 30, 2020 at 02:06:13PM -0400, Steven Schveighoffer via
Digitalmars-d-learn wrote:
> On 6/30/20 12:37 PM, Steven Schveighoffer wrote:
[...]
> I take it back, I didn't realize this wasn't something that happened
> with dynamic arrays:
>
> int[] dyn = [1, 2, 3];
>
> dyn = 5; // error
>
On Tue, Jun 30, 2020 at 04:50:07PM +, Adam D. Ruppe via Digitalmars-d-learn
wrote:
> On Tuesday, 30 June 2020 at 16:41:50 UTC, JN wrote:
> > I like my code to be explicit, even at a cost of some extra typing,
> > rather than get bitten by some unexpected implicit behavior.
>
> I agree, I
On Tue, Jun 30, 2020 at 04:22:57PM +, JN via Digitalmars-d-learn wrote:
> Spent some time debugging because I didn't notice it at first,
> essentially something like this:
>
> int[3] foo = [1, 2, 3];
> foo = 5;
> writeln(foo); // 5, 5, 5
>
> Why does such code compile? I don't think this
On Fri, Jun 26, 2020 at 02:12:00PM +, drathier via Digitalmars-d-learn
wrote:
> I'm trying to get this to compile, without much luck:
>
> ```
> bool foo()
> {
> template fn(A)
> {
> A delegate(A) fn;
> fn = delegate A(A a)
> {
> return fn(a);
>
On Fri, Jun 26, 2020 at 01:40:57PM +, Simen Kjærås via Digitalmars-d-learn
wrote:
> On Friday, 26 June 2020 at 13:21:25 UTC, drathier wrote:
> > How can I tell the compiler that I will never create a value of type
> > X, while still being able to write code that uses it? Using void as
> > a
On Wed, Jun 24, 2020 at 04:28:24PM -0400, Steven Schveighoffer via
Digitalmars-d-learn wrote:
> I have code that instantiates a template:
>
> templ!int("abc");
>
> When I read the source of where I *think* this template should be, I
> can't find one that would match (I think). I feel like it's
On Tue, Jun 23, 2020 at 11:53:36PM +, claptrap via Digitalmars-d-learn
wrote:
> So you have opBinary and half a dozen operators to implement. Do you
> use a separate method for each operator or do you have one method and
> a big static if else if to select code path?
[...]
If your
On Tue, Jun 23, 2020 at 03:25:55AM +, Stanislav Blinov via
Digitalmars-d-learn wrote:
> On Tuesday, 23 June 2020 at 02:41:55 UTC, Jonathan M Davis wrote:
>
> > As things stand, uncopyable ranges aren't really a thing, and common
> > range idiomns rely on ranges being copyable.
>
> Which
On Mon, Jun 22, 2020 at 08:53:22PM -0600, Jonathan M Davis via
Digitalmars-d-learn wrote:
[...]
> Exactly. It's because of issues like this that generic, range-based
> functions need to be tested with a variety of range types - including
> reference types. Without that, bugs are routinely missed.
On Mon, Jun 22, 2020 at 09:11:07PM +, Stanislav Blinov via
Digitalmars-d-learn wrote:
> On Monday, 22 June 2020 at 20:51:37 UTC, Jonathan M Davis wrote:
[...]
> > And moving doesn't fix anything, since the original variable is
> > still there (just in its init state, which would still be
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