On Tuesday, June 20, 2023 8:09:26 PM MDT Cecil Ward via Digitalmars-d-learn
wrote:
> First is an easy one:
>
> 1.) I have a large array and a sub-slice which I want to set up
> to be pointing into a sub-range of it. What do I write if I know
> the start and end indices ? Concerned about an
On Sunday, June 18, 2023 2:24:10 PM MDT Cecil Ward via Digitalmars-d-learn
wrote:
> I wasn’t intending to use DMD, rather ldc if possible or GDC
> because of their excellent optimisation, in which DMD seems
> lacking, is that fair? (Have only briefly looked at dmd+x86 and
> haven’t given DMD’s
On Thursday, June 15, 2023 7:54:22 PM MDT Jonathan M Davis via Digitalmars-d-
learn wrote:
> On Thursday, June 15, 2023 7:18:25 PM MDT zjh via Digitalmars-d-learn wrote:
> > On Friday, 16 June 2023 at 01:00:05 UTC, Steven Schveighoffer
> >
> > wrote:
> > > B b = B.ma
On Thursday, June 15, 2023 7:18:25 PM MDT zjh via Digitalmars-d-learn wrote:
> On Friday, 16 June 2023 at 01:00:05 UTC, Steven Schveighoffer
>
> wrote:
> > B b = B.make(); // call factory function
> >
> > -Steve
>
> Thank you for your tip.
> If could simplify it a bit more, it would be even
On Thursday, June 15, 2023 7:18:06 AM MDT Steven Schveighoffer via
Digitalmars-d-learn wrote:
> But in general, if you want a mutable character array that's zero
> terminated, you need to make a copy with a zero terminator, but type it
> as mutable. I'm surprised there isn't a way to do this
On Friday, July 10, 2020 12:30:16 PM MDT mw via Digitalmars-d-learn wrote:
> On Friday, 10 July 2020 at 17:35:56 UTC, Steven Schveighoffer
>
> wrote:
> > Mark your setTime as shared, then cast away shared (as you
> > don't need atomics once it's locked), and assign:
> >
> > synchronized
On Thursday, July 9, 2020 9:01:20 PM MDT mw via Digitalmars-d-learn wrote:
> On Friday, 10 July 2020 at 02:59:56 UTC, mw wrote:
> > Error: template std.datetime.systime.SysTime.opAssign cannot
> > deduce function from argument types !()(SysTime) shared,
> > candidates are:
> >
On Thursday, July 9, 2020 10:21:41 AM MDT H. S. Teoh via Digitalmars-d-learn
wrote:
> > - Assignment copies the whole array, as in int[5] a; auto b = a;
>
> Sometimes this is desirable. Consider the 3D game example. Suppose
> you're given a vector and need to perform some computation on it. If
On Monday, June 22, 2020 9:25:55 PM MDT 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 idioms
On Monday, June 22, 2020 3:33:08 PM MDT H. S. Teoh via Digitalmars-d-learn
wrote:
> On Mon, Jun 22, 2020 at 09:11:07PM +, Stanislav Blinov via Digitalmars-
d-learn wrote:
> > That is not true. Copying of forward ranges is absolutely fine. It's
> > what the current `save()` primitive is
On Monday, June 22, 2020 3:11:07 PM MDT Stanislav Blinov via Digitalmars-d-
learn wrote:
> On Monday, 22 June 2020 at 20:51:37 UTC, Jonathan M Davis wrote:
> > You're unlikely to find much range-based code that does that
> > and there really isn't much point in doing that. Again, copying
> > isn't
On Monday, June 22, 2020 3:38:02 PM MDT Paul Backus via Digitalmars-d-learn
wrote:
> On Monday, 22 June 2020 at 21:33:08 UTC, H. S. Teoh wrote:
> > Jonathan is coming from the POV of generic code. The problem
> > with move leaving the original range in its .init state isn't
> > so much that it
On Monday, June 22, 2020 3:46:57 PM MDT Per Nordlöw via Digitalmars-d-learn
wrote:
> Has anybody written a procedure for creating a temporary file in
> a race-free manner?
>
> And why has such a procedure not already been added to std.file
> when std.file.tempDir has?
>
> See:
On Monday, June 22, 2020 3:10:28 PM MDT kinke via Digitalmars-d-learn wrote:
> On Monday, 22 June 2020 at 20:51:37 UTC, Jonathan M Davis wrote:
> > [...]
>
> That's why I put the struct in parantheses. Moving a class ref
> makes hardly any sense, but I've also never written a *class* to
>
On Monday, June 22, 2020 1:41:34 PM MDT kinke via Digitalmars-d-learn wrote:
> On Monday, 22 June 2020 at 19:03:44 UTC, Jonathan M Davis wrote:
> > in practice, that means that generic code cannot use a range
> > once it's been copied
>
> Translating to a simple rule-of-thumb: never copy a
On Monday, June 22, 2020 10:59:45 AM MDT kinke via Digitalmars-d-learn wrote:
> If copying a range is considered to be generally unsafe and a
> common pitfall (vs. the save() abomination), maybe range-foreach
> shouldn't allow any lvalue ranges in the 1st place, thus not
> making any copies and
On Sunday, June 21, 2020 2:25:37 PM MDT kinke via Digitalmars-d-learn wrote:
> A foreach over a custom range makes an initial copy, so that the
> original range is still usable after the foreach (not empty).
No, it's not so that the range will be useable afterwards. In fact, for
generic code, you
On Saturday, June 13, 2020 10:22:39 AM MDT John Chapman via Digitalmars-d-
learn wrote:
> On Saturday, 13 June 2020 at 15:33:55 UTC, Boris Carvajal wrote:
> > On Saturday, 13 June 2020 at 09:02:21 UTC, John Chapman wrote:
> >> Is this a bug or have I made a mistake? This worked a few days
> >> ago
On Friday, June 12, 2020 5:12:35 PM MDT claptrap via Digitalmars-d-learn
wrote:
> struct Foo
> {
> float* what;
> float opIndex(size_t idx) { return what[idx]; }
> }
>
> Foo* foo;
> float x = foo[idx]; // ***
>
>
> *** (68): Error: cannot implicitly convert expression
>
On Wednesday, June 10, 2020 3:41:54 PM MDT H. S. Teoh via Digitalmars-d-learn
wrote:
> On Wed, Jun 10, 2020 at 08:24:19PM +, Vinod K Chandran via Digitalmars-
d-learn wrote:
> > Hi all,
> > I read in an old thread that authors of D wants to eliminate
> > @property. I just roughly read the big
On Sunday, May 24, 2020 6:12:31 AM MDT bauss via Digitalmars-d-learn wrote:
> Is there a way to do that?
>
> Since the following are both true:
>
> int[] a = null;
> int[] b = [];
>
> assert(a is null);
> assert(!a.length);
>
> assert(b is null);
> assert(!b.length);
>
> What I would like is to
On Sunday, May 24, 2020 2:57:28 AM MDT Luis via Digitalmars-d-learn wrote:
> Lets take this example code (https://run.dlang.io/is/Vkpx9j) :
>
> ´´´D
> import std;
>
> void main()
> {
> }
>
> class ExampleC
> {
>int x;
>this (int x) @safe
>{
> this.x = x;
>}
>
>override
On Sunday, May 24, 2020 12:38:46 AM MDT Tim via Digitalmars-d-learn wrote:
> Oh right. I mean it makes sense but I got confused when super()
> is valid syntax. Why would you need to call the super constructor
> when it's called automatically?
1. If you wanted to run any code before calling the
On Saturday, May 23, 2020 4:43:04 PM MDT Tim via Digitalmars-d-learn wrote:
> It is but I want to make sure for other cases in the future where
> I create a new class that inherits from GameObject. This was I
> can avoid future bugs by ensure that all classes in the future
> that inherit from
On Sunday, May 17, 2020 11:36:01 PM MDT Mike Parker via Digitalmars-d-learn
wrote:
> Unfortunately, the minimum Windows version "officially" supported
> is Windows 7:
>
> https://forum.dlang.org/post/ktfgps$2ghh$1...@digitalmars.com
>
> With no testing on XP, you are bound to run into
On Tuesday, May 5, 2020 11:11:53 AM MDT learner via Digitalmars-d-learn
wrote:
> On Tuesday, 5 May 2020 at 16:41:06 UTC, Adam D. Ruppe wrote:
> > typeof(return)
>
> Thank you, that was indeed easy!
>
> Is it possible to retrieve also the caller return type? Something
> like:
>
> ```
> int foo() {
On Sunday, May 3, 2020 2:54:17 PM MDT Marcone via Digitalmars-d-learn wrote:
> On Sunday, 3 May 2020 at 20:46:30 UTC, Adam D. Ruppe wrote:
> > On Sunday, 3 May 2020 at 20:21:24 UTC, Marcone wrote:
> >> How can I check if a variable is iterable?
> >
> > Every variable has a type. You can get it
On Monday, April 27, 2020 9:52:32 AM MDT drug via Digitalmars-d-learn wrote:
> 27.04.2020 18:28, data pulverizer пишет:
> > I'm probably not the first person to say this but. Isn't @trusted an odd
> > label to give unsafe functions and open to abuse by unscrupulous
> > programmers? It almost says
On Thursday, April 16, 2020 12:41:14 PM MDT Steven Schveighoffer via
Digitalmars-d-learn wrote:
> On 4/16/20 2:28 PM, Steven Schveighoffer wrote:
> > OK, I thought, just put it in ~/bin, and run it from there. Doesn't
> > work, now it looks in ~/bin (where there is no compiler), and fails.
>
> I
On Saturday, April 4, 2020 4:22:29 AM MDT Robert M. Münch via Digitalmars-d-
learn wrote:
> D doesn't have implicit operators for structs?
>
> struct S {float a, float b};
> S a = {1, 5};
> S b = {2, 5);
>
> a += b;
> Error: a is not a scalar, it is a S
>
> So I really have to write an overloaded
On Friday, March 20, 2020 4:33:58 PM MDT jxel via Digitalmars-d-learn wrote:
> On Friday, 20 March 2020 at 21:03:55 UTC, Jonathan M Davis wrote:
> > On Wednesday, March 18, 2020 10:23:26 AM MDT IGotD- via
> >
> > Digitalmars-d-learn wrote:
> >> I have not seen any example where version has several
On Wednesday, March 18, 2020 10:23:26 AM MDT IGotD- via Digitalmars-d-learn
wrote:
> I have not seen any example where version has several OR matches.
>
> Example idiom:
>
> version(X86_64 || X86)
> {
>
> }
> else version(ARM || Thumb)
> {
>
> }...
>
> you get the idea. So is this possible at all
On Sunday, March 8, 2020 11:19:33 PM MDT tchaloupka via Digitalmars-d-learn
wrote:
> On Sunday, 8 March 2020 at 17:28:33 UTC, Robert M. Münch wrote:
> > On 2020-03-07 12:10:27 +, Jonathan M Davis said:
> >
> > DateTime dt =
> > DateTime.fromISOExtString(split("2018-11-06T16:52:03+01:00",
> >
On Saturday, March 7, 2020 2:43:47 AM MST Robert M. Münch via Digitalmars-d-
learn wrote:
> It looks like std.datetime is not anticipating the +1:00 part of a date
> like: "2018-11-06T16:52:03+01:00"
>
> Those dates are used all over on the internet and I'mm wondering why
> it's not supported. Any
On Sunday, February 16, 2020 12:22:01 PM MST Paul Backus via Digitalmars-d-
learn wrote:
> On Sunday, 16 February 2020 at 18:11:11 UTC, Jonathan M Davis
>
> wrote:
> > Either way, generic code should never be using a range after
> > it's been copied, and copying is a key part of how idiomatic,
> >
On Sunday, February 16, 2020 10:53:36 AM MST Paul Backus via Digitalmars-d-
learn wrote:
> On Sunday, 16 February 2020 at 17:10:24 UTC, Jonathan M Davis
>
> wrote:
> > On Sunday, February 16, 2020 7:29:11 AM MST uranuz via
> >
> >> This is working fine with disabled postblit...
> >> import std;
>
On Sunday, February 16, 2020 6:52:17 AM MST uranuz via Digitalmars-d-learn
wrote:
> It's very bad. Because there seem that when I use range based
> algorithm I need to take two things into account. The first is
> how algrorithm is implemented. If it creates copies of range
> inside or pass it by
On Sunday, February 16, 2020 7:29:11 AM MST uranuz via Digitalmars-d-learn
wrote:
> On Sunday, 16 February 2020 at 12:38:51 UTC, Jonathan M Davis
>
> wrote:
> > On Sunday, February 16, 2020 3:41:31 AM MST uranuz via
> >
> > Digitalmars-d-learn wrote:
> >> I have reread presentation:
> >>
On Sunday, February 16, 2020 3:41:31 AM MST uranuz via Digitalmars-d-learn
wrote:
> I have reread presentation:
> http://dconf.org/2015/talks/davis.pdf
> We declare that `pure` input range cannot be `unpoped` and we
> can't return to the previous position of it later at the time. So
> logically
On Saturday, February 15, 2020 7:34:42 AM MST Steven Schveighoffer via
Digitalmars-d-learn wrote:
> On 2/15/20 5:53 AM, uranuz wrote:
> > I am interested in current circumstances when we have new copy
> > constructor feature what is the purpose of having range `save`
> > primitive? For me they
On Tuesday, February 4, 2020 12:52:05 AM MST JN via Digitalmars-d-learn
wrote:
> int[int] a = [5: 7];
>
> void main()
> {
> }
>
>
> This fails because apparently [5: 7] is a "non-const expression".
> How? Why?
>
> Yes, I know I can just init in a static this() section, but that
> feels like a bad
On Tuesday, February 4, 2020 12:33:42 AM MST mark via Digitalmars-d-learn
wrote:
> I have just discovered that D seems to treat empty and null
> strings as the same thing:
>
> // test.d
> import std.stdio;
> import std.string;
> void main()
> {
> string x = null;
> writeln("x = \"",
On Friday, January 31, 2020 5:43:44 AM MST MoonlightSentinel via
Digitalmars-d-learn wrote:
> On Friday, 31 January 2020 at 12:37:43 UTC, Adnan wrote:
> > What's causing this?
>
> You mixed up the array lengths:
>
> const int[3][2] matA = [[0, -1, 2], [4, 11, 2]];
> const int[2][3] matB = [[3,
On Thursday, January 30, 2020 2:37:40 AM MST Michael via Digitalmars-d-learn
wrote:
> auto is surely a nice feature. Nonetheless I'd prefer to use
> explicit types. So when reading a code and I see the auto keyword
> I also have to find out what kind of type is meant.
>
> I have a line of code
On Wednesday, January 29, 2020 12:16:29 AM MST Ferhat Kurtulmuş via
Digitalmars-d-learn wrote:
> On Wednesday, 29 January 2020 at 06:53:15 UTC, Jonathan M Davis
>
> wrote:
> > On Tuesday, January 28, 2020 10:17:03 PM MST Marcone via
> >
> > Digitalmars-d-learn wrote:
> >> [...]
> >
> > Of course
On Tuesday, January 28, 2020 10:17:03 PM MST Marcone via Digitalmars-d-learn
wrote:
> How to convert "string" to const(wchar)* ?
> The code bellow is making confuse strange characters.
>
> cast(wchar*) str
Of course it is. string is immutable(char)[], and the characters are in
UTF-8.
On Wednesday, January 22, 2020 7:50:01 AM MST Per Nordlöw via Digitalmars-d-
learn wrote:
> On Wednesday, 22 January 2020 at 10:19:38 UTC, Jacob Carlborg
>
> wrote:
> > That looks like it's for internal use. There is a `compare`
> > method in the `TypeInfo` of each type.
>
> Will that incur an
On Wednesday, January 15, 2020 9:13:05 AM MST Paul Backus via Digitalmars-d-
learn wrote:
> On Thursday, 9 January 2020 at 10:26:07 UTC, Jonathan M Davis
>
> wrote:
> > On Wednesday, January 8, 2020 10:56:20 PM MST rikki cattermole
> >
> > via Digitalmars-d-learn wrote:
> >> Slicing via the
On Wednesday, January 8, 2020 10:56:20 PM MST rikki cattermole via
Digitalmars-d-learn wrote:
> Slicing via the opSlice operator overload is a convention, not a
> requirement.
It's not a requirement, but it's more than a convention. If you use the
container with foreach, the compiler will call
On Wednesday, January 8, 2020 10:28:23 PM MST Alex Burton via Digitalmars-d-
learn wrote:
> I am writing a specialised container class, and want to make it
> work like a normal array with range functions.
> After some struggle, I look at the code for std.container.array
> and see this comment :
>
On Wednesday, January 8, 2020 2:58:59 PM MST Marcel via Digitalmars-d-learn
wrote:
> On Wednesday, 8 January 2020 at 07:03:26 UTC, Jonathan M Davis
>
> wrote:
> > On Tuesday, January 7, 2020 5:23:48 PM MST Marcel via
> >
> > Digitalmars-d-learn wrote:
> >> [...]
> >
> > In terms of an error
On Wednesday, January 8, 2020 4:54:06 AM MST Simen Kjærås via Digitalmars-d-
learn wrote:
> On Wednesday, 8 January 2020 at 07:03:26 UTC, Jonathan M Davis
>
> wrote:
> > you could just document that no one should ever use its init
> > value explicitly, and that they will have bugs if they do
>
>
On Tuesday, January 7, 2020 5:23:48 PM MST Marcel via Digitalmars-d-learn
wrote:
> Hello!
> I'm writing a library where under certain conditions i need all
> the default constructors to be disabled. I would like to tell the
> user why they can't instantiate the struct.
> Is there a way to do
On Monday, January 6, 2020 8:52:01 AM MST Steven Schveighoffer via
Digitalmars-d-learn wrote:
> On 1/6/20 5:07 AM, WebFreak001 wrote:
> > I was wondering, how are you supposed to use std.file : read in @safe
> > code when it returns a void[] but you want to get all bytes in the file?
> >
> > Is
On Saturday, December 7, 2019 5:23:30 AM MST Joseph Rushton Wakeling via
Digitalmars-d-learn wrote:
> On Saturday, 7 December 2019 at 03:23:00 UTC, Jonathan M Davis
>
> wrote:
> > The module to look at here is std.utf, not std.encoding.
>
> Hmmm, docs may need updating then -- several functions
On Friday, December 6, 2019 9:48:21 AM MST Joseph Rushton Wakeling via
Digitalmars-d-learn wrote:
> Hello folks,
>
> I have a use-case that involves wanting to create a thin struct
> wrapper of underlying string data (the idea is to have a type
> that guarantees that the string has certain
On Friday, December 6, 2019 12:03:45 AM MST berni44 via Digitalmars-d-learn
wrote:
> In std.typecons, in Tuple there are two opCmp functions, that are
> almost identical; they only differ by one being const and the
> other not:
>
> int opCmp(R)(R rhs)
> if
On Tuesday, December 3, 2019 3:23:20 AM MST Basile B. via Digitalmars-d-
learn wrote:
> On Tuesday, 3 December 2019 at 10:19:02 UTC, Jonathan M Davis
>
> wrote:
> > On Tuesday, December 3, 2019 3:03:22 AM MST Basile B. via
> >
> > Digitalmars-d- learn wrote:
> >> [...]
> >
> > There isn't much
On Tuesday, December 3, 2019 3:03:22 AM MST Basile B. via Digitalmars-d-
learn wrote:
> On Tuesday, 3 December 2019 at 09:58:36 UTC, Jonathan M Davis
>
> wrote:
> > On Tuesday, December 3, 2019 12:12:18 AM MST Basile B. via
> >
> > Digitalmars-d- learn wrote:
> >> I wish something like this was
On Tuesday, December 3, 2019 12:12:18 AM MST Basile B. via Digitalmars-d-
learn wrote:
> I wish something like this was possible, until I change the
> return type of `alwaysReturnNull` from `void*` to `auto`.
>
>
> ---
> class A {}
> class B {}
>
> auto alwaysReturnNull() // void*, don't compile
>
On Sunday, December 1, 2019 8:20:42 AM MST Per Nordlöw via Digitalmars-d-
learn wrote:
> Is it possible to compile and run unittest of dmd without
> druntime and phobos?
>
> If so, how?
>
> I'm trying the following under dmd root:
>
> make -C src -f posix.mak unittest
>
On Monday, November 25, 2019 9:25:08 AM MST ParticlePeter via Digitalmars-d-
learn wrote:
> I am producing a bunch of functions/methods through string
> mixins. I also generated DDoc comments for those functions, in
> the hope that they would produce proper documentation, but they
> don't. So how
On Tuesday, November 26, 2019 4:29:18 AM MST S.G via Digitalmars-d-learn
wrote:
> On Tuesday, 26 November 2019 at 10:24:00 UTC, Robert M. Münch
>
> wrote:
> > How can I write something like this to check if any of a set of
> > specific versions is used?
> >
> > static assert(!(version(a) |
On Monday, November 25, 2019 1:22:17 AM MST Andrej Mitrovic via Digitalmars-
d-learn wrote:
> From:
> https://github.com/dlang/phobos/blob/10b9174ddcadac52f6a1ea532deab3310d3a8
> c03/std/concurrency.d#L1913-L1916:
>
> -
> ///
> final @property bool isClosed() @safe @nogc pure
> {
>
On Monday, November 25, 2019 1:32:53 AM MST H. S. Teoh via Digitalmars-d-
learn wrote:
> On Mon, Nov 25, 2019 at 08:07:50AM +, Fanda Vacek via
> Digitalmars-d-learn wrote: [...]
>
> > But anyway, pointers are not allowed in @safe code, so this is not
> > always solution.
>
> [...]
>
> This is
On Sunday, November 17, 2019 11:44:43 PM MST Joel via Digitalmars-d-learn
wrote:
> I can only parse one row successfully. I tried increasing the
> popFronts, till it said I'd gone off the end.
>
> Running ./app
> core.exception.AssertError@../../../../.dub/packages/dxml-0.4.1/dxml/sourc
>
On Wednesday, November 13, 2019 7:01:13 AM MST BoQsc via Digitalmars-d-learn
wrote:
> I don't like to see exclamation marks in my code in as weird
>
> syntax as these ones:
> > to!ushort(args[1])
> > s.formattedRead!"%s!%s:%s"(a, b, c);
>
> I'm not sure why, but template instantiation syntax is
On Tuesday, November 12, 2019 2:24:54 PM MST Marcone via Digitalmars-d-learn
wrote:
> I am using this function to sleep, but I want a simple Alias. How
> can I alias this?
>
> // Function sleep(int)
> void sleep(int seconds){
> Thread.sleep(dur!("seconds")( seconds ));
> }
>
> sleep(1); //
On Monday, November 11, 2019 12:17:37 PM MST Bastiaan Veelo via Digitalmars-
d-learn wrote:
> Recently I got my first surprise with our use of D. The symptom
> was that two local variables in two different functions appeared
> to be sharing data.
>
> A simplified example is shown below (the
On Tuesday, November 5, 2019 5:09:15 AM MST Ferhat Kurtulmuş via
Digitalmars-d-learn wrote:
> On Tuesday, 5 November 2019 at 12:06:44 UTC, Ferhat Kurtulmuş
>
> wrote:
> > On Tuesday, 5 November 2019 at 11:20:47 UTC, Mike Parker wrote:
> >> On Tuesday, 5 November 2019 at 10:32:03 UTC, Ferhat
On Tuesday, November 5, 2019 9:16:27 AM MST ixid via Digitalmars-d-learn
wrote:
> On Monday, 4 November 2019 at 20:46:41 UTC, H. S. Teoh wrote:
> > On Mon, Nov 04, 2019 at 07:51:26PM +, Tobias Pankrath via
> >
> > Digitalmars-d-learn wrote:
> >> Why does the following not work? It works, if I
On Thursday, October 31, 2019 9:11:42 AM MDT Ferhat Kurtulmuş via
Digitalmars-d-learn wrote:
> On Thursday, 31 October 2019 at 13:46:07 UTC, Adam D. Ruppe wrote:
> > On Thursday, 31 October 2019 at 03:56:56 UTC, lili wrote:
> >> Hi:
> >>why writeln need GC?
> >
> > It almost never does, it
On Friday, November 1, 2019 11:23:42 AM MDT Ali Çehreli via Digitalmars-d-
learn wrote:
> On 11/01/2019 09:33 AM, Paul Backus wrote:
> > On Friday, 1 November 2019 at 15:29:24 UTC, Ali Çehreli wrote:
> >> Apparently, it's the version for static arrays. However, I don't think
> >> the template
On Sunday, October 27, 2019 6:44:05 AM MDT Per Nordlöw via Digitalmars-d-
learn wrote:
> In which circumstances can a `char` be initialized a non-7-bit
> value (>= 128)? Is it possible only in non-@safe code?
>
> And, if so, what will be the result of casting such a value to
> `dchar`? Will that
On Thursday, October 24, 2019 8:40:59 PM MDT lili via Digitalmars-d-learn
wrote:
> On Thursday, 24 October 2019 at 22:40:31 UTC, Jonathan M Davis
>
> wrote:
> > On Thursday, October 24, 2019 7:04:56 AM MDT Paul Backus via
> >
> > Digitalmars-d- learn wrote:
> >> On Thursday, 24 October 2019 at
On Thursday, October 24, 2019 7:04:56 AM MDT Paul Backus via Digitalmars-d-
learn wrote:
> On Thursday, 24 October 2019 at 12:58:11 UTC, lili wrote:
> > Hi:
> >In Dlang where is strange design. The in expression can only
> >
> > use to associative array, why array can not use in expression.
>
On Tuesday, October 22, 2019 4:27:59 PM MDT Per Nordlöw via Digitalmars-d-
learn wrote:
> On Tuesday, 22 October 2019 at 15:39:17 UTC, Adam D. Ruppe wrote:
> > On Tuesday, 22 October 2019 at 15:33:05 UTC, Per Nordlöw wrote:
> >> Why isn't a call to
> >>
> >> skipOver(string, string)
> >>
> >>
On Tuesday, October 22, 2019 9:33:05 AM MDT Per Nordlöw via Digitalmars-d-
learn wrote:
> Why isn't a call to
>
> skipOver(string, string)
>
> nothrow?
>
> I see no reason why it shouldn't be.
>
> Further, this test should be qualifyable as nothrow:
>
> @safe pure /* TODO nothrow @nogc */
On Friday, October 18, 2019 10:54:55 AM MDT Roland Hadinger via Digitalmars-
d-learn wrote:
> These questions probably need some context: I'm working on an
> interpreter that will manage memory via reference counted struct
> types. To deal with the problem of strong reference cycles
> retaining
On Saturday, October 12, 2019 9:48:02 PM MDT jmh530 via Digitalmars-d-learn
wrote:
> On Saturday, 12 October 2019 at 21:44:57 UTC, Jonathan M Davis
>
> wrote:
> > [snip]
>
> Thanks for the reply.
>
> As with most people, I don't write a lot of D code that uses
> classes that much.
>
> The use
On Saturday, October 12, 2019 2:11:28 PM MDT jmh530 via Digitalmars-d-learn
wrote:
> On Friday, 11 October 2019 at 17:50:42 UTC, Jonathan M Davis
>
> wrote:
> > [snip]
>
> A very thorough explanation!
>
> One follow-up question: would it be possible to mimic the
> behavior of Java generics in D?
On Saturday, October 12, 2019 2:18:02 AM MDT Martin Brezeln via Digitalmars-
d-learn wrote:
> Is it possible to execute only certain modules or tests which are
> defined in certain directories?
>
> For example, in go one can run "go test ./XYZ" to execute ony
> tests in ./XYZ or "go test ./..." to
On Thursday, October 10, 2019 5:03:29 PM MDT Damian via Digitalmars-d-learn
wrote:
> Missing _getmaxstdio / _setmaxstdio?
> I'd like to try and increase the limit of open files without
> resorting to Windows API, is it possible or will I have to resort
> to the WinAPI to achieve this?
Phobos
On Friday, October 11, 2019 12:09:20 PM MDT Just Dave via Digitalmars-d-
learn wrote:
> Thanks for the thorough explanation. Most of that is how I was
> thinking it worked. However, that leaves me perplexed. If
> templates just generate code then how come:
>
> Wouldnt..
>
> class SomeClass(T)
On Friday, October 11, 2019 8:43:49 AM MDT Just Dave via Digitalmars-d-learn
wrote:
> I come from both a C++ and C# background. Those have been the
> primary languages I have used. In C# you can do something like
> this:
>
> public interface ISomeInterface
> {
> T Value { get;
On Thursday, October 10, 2019 9:47:58 AM MDT Just Dave via Digitalmars-d-
learn wrote:
> In C# you can do something like:
>
>
> if (obj is Person)
> {
> var person = obj as Person;
> // do stuff with person...
> }
>
> where you can check the type of an object prior
On Tuesday, October 8, 2019 2:42:22 PM MDT mipri via Digitalmars-d-learn
wrote:
> On Tuesday, 8 October 2019 at 10:48:45 UTC, Jonathan M Davis
>
> wrote:
> > The result of this is that code like
> >
> > stack.popBack();
> > stack ~= foo;
> > stack ~= bar;
> > stack.popBack();
> > stack ~= baz;
>
On Tuesday, October 8, 2019 9:40:33 AM MDT Paul Backus via Digitalmars-d-
learn wrote:
> On Sunday, 6 October 2019 at 20:34:55 UTC, Brett wrote:
> > If it can be done and make to work well with ranges it would
> > allow many algorithms to be very easily expressed and make
> > ranges more powerful.
On Monday, October 7, 2019 1:16:31 PM MDT IGotD- via Digitalmars-d-learn
wrote:
> On Monday, 7 October 2019 at 17:36:09 UTC, Ferhat Kurtulmuş wrote:
> >> I'm not talking about memory deletion. I'm talking about push,
> >> pop, enqueue, and dequeue behavior. I'd assume in a garbage
> >> collected
On Friday, October 4, 2019 1:22:26 PM MDT Dennis via Digitalmars-d-learn
wrote:
> On Friday, 4 October 2019 at 19:08:04 UTC, Adam D. Ruppe wrote:
> > (personally though I like to explicitly slice it all the time
> > though, it is more clear and the habit is nice)
>
> Turns out I have this habit
On Friday, October 4, 2019 4:00:08 AM MDT Per Nordlöw via Digitalmars-d-
learn wrote:
> I have a wrapper container FixedArray at
>
> https://github.com/nordlow/phobos-next/blob/25f4a4ee7347427cebd5cd375c9990
> b44108d2ef/src/fixed_array.d
>
> on top of a static array store that provides the member
On Wednesday, October 2, 2019 11:48:46 PM MDT Mike Parker via Digitalmars-d-
learn wrote:
> On Thursday, 3 October 2019 at 04:57:44 UTC, mipri wrote:
> > On Thursday, 3 October 2019 at 04:33:26 UTC, Brett wrote:
> >> I was trying to avoid such things since X is quite long in
> >> name. Not a huge
On Wednesday, October 2, 2019 11:22:40 AM MDT Just Dave via Digitalmars-d-
learn wrote:
> I was reading the C++ to D page, and came across this little bit
> about when to call the base class constructor:
>
> "It's superior to C++ in that the base constructor call can be
> flexibly placed anywhere
On Tuesday, September 24, 2019 1:35:24 AM MDT lili via Digitalmars-d-learn
wrote:
> Hi:
>in phobos/std/range/primitives.d has this code
> ```
> static assert( isInputRange!(int[]));
> static assert( isInputRange!(char[]));
> static assert(!isInputRange!(char[4]));
> static
On Monday, September 23, 2019 5:22:14 PM MDT Brett via Digitalmars-d-learn
wrote:
> On Monday, 23 September 2019 at 20:45:00 UTC, destructionator
>
> wrote:
> > On Mon, Sep 23, 2019 at 08:38:03PM +, Brett via
> >
> > Digitalmars-d-learn wrote:
> >> The only thing is that szExeFile is a static
On Saturday, September 21, 2019 10:32:08 PM MDT Paul Backus via Digitalmars-
d-learn wrote:
> On Sunday, 22 September 2019 at 04:15:53 UTC, lili wrote:
> > Hi：
> >
> >yesterday I saw some d code， where is an .fn() call syntax,
> >
> > what is it mean.
>
> It means that `fn` is looked up in the
On Saturday, September 21, 2019 12:52:23 PM MDT Dennis via Digitalmars-d-
learn wrote:
> Since I marked the method as const, `auto a = head` got the type
> const(Node!T) and `a = a.next` no longer compiled. With structs
> you can declare a const(Node!T)* (mutable pointer to const node),
> but I
On Friday, September 20, 2019 7:08:03 AM MDT Joseph Rushton Wakeling via
Digitalmars-d-learn wrote:
> On Thursday, 19 September 2019 at 22:55:55 UTC, Jonathan M Davis
>
> wrote:
> > For better or worse, ranges were more or less set up as a
> > linear hierarchy, and it's unlikely that use cases
On Friday, September 20, 2019 5:21:22 AM MDT Ali Çehreli via Digitalmars-d-
learn wrote:
> tl;dr Instead of returning an object that uses local state, return an
> object that uses member variables.
The other issue this helps with is problems related to having multiple
contexts. IIRC, without it,
On Thursday, September 19, 2019 3:31:32 AM MDT Joseph Rushton Wakeling via
Digitalmars-d-learn wrote:
> Hello folks,
>
> A question that occurred to me while implementing a new data
> structure recently, which I'm not sure I've ever seen a reason
> for.
>
> Why must bidirectional ranges also be
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