On Wed, Jan 19, 2022 at 09:59:15PM +, forkit via Digitalmars-d-learn wrote:
> so I have this code below, that creates an array of tuples.
>
> but instead of hardcoding 5 tuples (or hardcoding any amount of
> tuples), what I really want to do is automate the creation of
> how-ever-many tuples
On Tue, Jan 18, 2022 at 10:04:15PM +, forkit via Digitalmars-d-learn wrote:
> so I use this compile command (on Windows, using ldc)
>
> -link-defaultlib-shared=true
>
> Then (in simple example) the size of my compiled .exe:
>
> From 806KB down to 18KB
>
> Oh. That's so much nicer on my SSD
On Tue, Jan 18, 2022 at 04:02:42PM +, Tejas via Digitalmars-d-learn wrote:
[...]
> Newer languages nowadays use `start.. it's something we should follow?
I've never seen that before. Which languages use that?
T
--
"If you're arguing, you're losing." -- Mike Thomas
On Tue, Jan 18, 2022 at 05:41:34PM +, Anonymouse via Digitalmars-d-learn
wrote:
> On Tuesday, 18 January 2022 at 17:37:27 UTC, H. S. Teoh wrote:
> > > Bypassing dub and calling the raw ldc command gives no output.
> > > What else can I do?
> >
> > What does `echo $?` print immediately after
On Tue, Jan 18, 2022 at 05:20:04PM +, Anonymouse via Digitalmars-d-learn
wrote:
> On Tuesday, 18 January 2022 at 16:43:52 UTC, H. S. Teoh wrote:
> > What's the dustmite command you used? In such cases, it's useful to
> > check for this specific error message in your dustmite command, so
> >
On Tue, Jan 18, 2022 at 04:25:45PM +, Anonymouse via Digitalmars-d-learn
wrote:
> I did a big sweep through my project and changed all `writefln`s and
> `format`s and the such to take their format patterns as compile-time
> parameters, and now ldc can no longer build it on Windows. It works
On Mon, Jan 17, 2022 at 10:35:30PM +, forkit via Digitalmars-d-learn wrote:
> On Monday, 17 January 2022 at 22:28:10 UTC, H. S. Teoh wrote:
> >
> > If I ever needed to foreach over 1-based indices, I'd write it this
> > way in order to avoid all confusion:
> >
> > foreach (i; 1 .. 5 + 1)
On Mon, Jan 17, 2022 at 10:22:19PM +, forkit via Digitalmars-d-learn wrote:
[...]
> I think it's fair to say, that I'm familiar with 0-based indexing ;-)
>
> my concern was with the 1..5 itself.
>
> In terms of what makes sense, it actually makes more sense not to use
> it, at all ;-)
If I
On Mon, Jan 17, 2022 at 09:37:31PM +, forkit via Digitalmars-d-learn wrote:
> On Monday, 17 January 2022 at 11:58:18 UTC, Paul Backus wrote:
> >
> > This kind of half-open interval, which includes the lower bound but
> > excludes the upper bound, is used in programming because it lets you
> >
On Sun, Jan 16, 2022 at 01:42:21PM -0500, Steven Schveighoffer via
Digitalmars-d-learn wrote:
> On 1/16/22 1:33 PM, Paul Backus wrote:
[...]
> > ```d
> > extern(C) void handleCtrlC(int)
> > {
> > import core.stdc.stdlib: exit;
> > import std.stdio: writeln;
> >
> > try throw new
On Sun, Jan 16, 2022 at 08:21:29AM -0800, Ali Çehreli via Digitalmars-d-learn
wrote:
> On 1/16/22 07:32, Salih Dincer wrote:
> > On Sunday, 16 January 2022 at 11:43:40 UTC, Ali Çehreli wrote:
> >>
> >> void main() {
> >> enum count = 7;
> >>
> >> // Allocate some memory
> >> void* rawData =
On Sat, Jan 15, 2022 at 01:49:14AM +, forkit via Digitalmars-d-learn wrote:
[...]
> int[][] arrayOfarrays = iota(1, 16).chunks(5).to2Darray; // how to
> convert this into [][]
[...]
auto arrayOfArrays = iota(1, 16).chunks(5).map!(r => r.array).array;
T
--
Winners never quit,
On Wed, Jan 12, 2022 at 11:04:59AM -0500, Steven Schveighoffer via
Digitalmars-d-learn wrote:
> On 1/12/22 3:59 AM, JG wrote:
[...]
> > struct Point
> > {
> > double x;
> > double y;
> > alias expand = typeof(this).tupleof;
> > alias expand this;
> > }
On Wed, Jan 12, 2022 at 12:24:14AM +, forkit via Digitalmars-d-learn wrote:
> On Tuesday, 11 January 2022 at 21:50:00 UTC, Paul Backus wrote:
> > ..
> > If you know a particular bit of code is memory safe, but the compiler
> > can't prove it, you can mark that code as @trusted. For example:
>
On Fri, Jan 07, 2022 at 07:54:28PM +, eugene via Digitalmars-d-learn wrote:
[...]
> * Does .until() make a copy of original string? And GC then will take
> care of it?
No, it's one of the lazy range functions that lazily evaluates the
string and does not allocate.
> * So many ways to do
On Wed, Jan 05, 2022 at 11:29:08PM +, Era Scarecrow via Digitalmars-d-learn
wrote:
[...]
> That said, rolling your own mixins should really be the last resort.
> You're dumping a lot into a single line of code you can't trace,
> follow, debug, or look at.
Mixins are kinda like the nuclear
On Wed, Jan 05, 2022 at 08:40:15AM +, rempas via Digitalmars-d-learn wrote:
[...]
> void test(bool signed)(int num, int base) {
> static if (signed) {
> mixin(type_check!("static if", "i8", "true", "5", "4", "10", "5"));
> mixin(type_check!("else static if", "i16", "true", "7", "6",
On Wed, Jan 05, 2022 at 08:00:45AM +, forkit via Digitalmars-d-learn wrote:
[...]
> Well, in my case, it was nice to see that the oom reaper thread is
> working correctly ;-)
I'm well-acquainted with the OOM reaper; it and dmd are good friends,
and love to throw parties esp. when CTFE and
On Tue, Jan 04, 2022 at 03:34:41PM -0800, H. S. Teoh wrote:
[...]
> Of course, afterwards the optimizer would merge them into something
> saner, but while the compiler is unfolding all those assignments, its
> memory usage would obviously skyrocket.
Or the compiler would run out of memory before
On Tue, Jan 04, 2022 at 10:53:50PM +, forkit via Digitalmars-d-learn wrote:
[...]
> //
>
> module test;
> void main(){ static char[2147483646] arr; }
>
> //
I bet you it's the same problem I found a couple of years ago, where the
compiler translates the above code to something
On Tue, Jan 04, 2022 at 05:01:41PM +, Amit via Digitalmars-d-learn wrote:
> Hi!
>
> I wrote a text parser that takes a File argument and parses that
> file's contents. Now I would like to write a unit-test for that
> parser. I need a File (or a general IO interface) that reads from an
>
On Fri, Dec 31, 2021 at 11:52:21AM +, kdevel via Digitalmars-d-learn wrote:
[...]
> That is what I want to do. The function template lyr shall be
> (explicitly) instantiated in order to put the resulting function
> pointer into an AA. The call signature of lyr!(foo) and foo must be
> the same.
On Mon, Dec 27, 2021 at 04:40:19PM +, Adam D Ruppe via Digitalmars-d-learn
wrote:
> On Monday, 27 December 2021 at 15:26:16 UTC, H. S. Teoh wrote:
> > A lot of modern Linux applications don't even work properly under
> > anything non-UTF-8
>
> yeah, you're supposed to check the locale but
On Mon, Dec 27, 2021 at 02:30:55PM +, Adam D Ruppe via Digitalmars-d-learn
wrote:
> On Monday, 27 December 2021 at 11:21:54 UTC, rempas wrote:
> > So should I just use UTF-8 only for Linux?
>
> Most unix things do utf-8 more often than not, but technically you are
> supposed to check the
On Sun, Dec 26, 2021 at 11:45:25PM +, max haughton via Digitalmars-d-learn
wrote:
[...]
> I think that mental model is pretty good actually. Maybe a more
> specific idea exists, but this virtual machine concept does actually
> explain to the new programmer to expect dragons - or at least that
On Wed, Dec 15, 2021 at 10:01:19PM +, Jan via Digitalmars-d-learn wrote:
> On Wednesday, 15 December 2021 at 21:30:47 UTC, Tim wrote:
[...]
> ```cpp
> extern export __gshared static int var;
> ```
[...]
> Joking aside, I understood the docs such that `__gshared` actually
> *is* `static` in D,
On Mon, Dec 13, 2021 at 10:43:14PM +, forkit via Digitalmars-d-learn wrote:
> On Monday, 13 December 2021 at 21:13:25 UTC, H. S. Teoh wrote:
> >
> > What you should be doing is:
> >
> > return to!string(str[0 .. len]);
> >
> > Or just:
> >
> > return str[0 .. len].idup;
[...]
>
On Mon, Dec 13, 2021 at 08:58:42PM +, forkit via Digitalmars-d-learn wrote:
[...]
> immutable(char)[] replaceChar(char* str, ulong len, char ch1, char ch2)
> {
> for (ulong i = 0; i < len; i++)
> {
> if (str[i] == ch1)
> {
> writefln("Found %c at str[%d]",
On Mon, Dec 13, 2021 at 08:47:12PM +, forkit via Digitalmars-d-learn wrote:
> On Monday, 13 December 2021 at 20:28:26 UTC, H. S. Teoh wrote:
> > On Mon, Dec 13, 2021 at 08:04:24PM +, forkit via Digitalmars-d-learn
> > wrote:
[...]
> > > (this produces an unpredictable result??)
> > > char*
On Mon, Dec 13, 2021 at 08:04:24PM +, forkit via Digitalmars-d-learn wrote:
> On Monday, 13 December 2021 at 12:06:53 UTC, WebFreak001 wrote:
> >
> > You should really use `.dup` if you want to mutate your string. (You
> > would need to duplicate anyway if you don't want an unsafe cast)
>
>
On Wed, Dec 08, 2021 at 05:21:49PM +, Ben Jones via Digitalmars-d-learn
wrote:
[...]
> I considered just having a `ref int` parameter, but I didn't think
> that would work if I was actually calling a property function, rather
> than just modifying a struct member.
[...]
Why not pass the
On Wed, Dec 08, 2021 at 05:19:32PM +, Ben Jones via Digitalmars-d-learn
wrote:
> I'm trying to use a property member of a struct as a template alias
> parameter and I don't really understand how to fix the error message
> I'm seeing (I also tried the simpler case of a plain struct member,
>
On Thu, Dec 02, 2021 at 11:29:17PM +, Chris Katko via Digitalmars-d-learn
wrote:
[...]
> It seems I can (thanks to the amazing work of D community) simply do:
>
> ```d
> extern(C) int sched_yield(void); // #include
> ```
>
> however, how does the linker know I need and not some local
>
On Sat, Nov 27, 2021 at 03:24:43PM +, Coder via Digitalmars-d-learn wrote:
[...]
> Question, why a function can not be nothrow if I catch in the body?
>
> void foo() nothrow {
> import std.utf : validate, UTFException;
> try {
> validate("a");
> }
>
On Fri, Nov 19, 2021 at 10:21:52PM +, pascal111 via Digitalmars-d-learn
wrote:
[...]
> When I compiled the code after adding yours, I found this error message:
>
> "untitled20.d:24:8: error: no property 'copy' for type 'ByChunk'
>24 |.copy(outputFile.lockingBinaryWriter); // copy
On Fri, Nov 19, 2021 at 10:21:42PM +, Adam Ruppe via Digitalmars-d-learn
wrote:
[...]
> The OS functions for getch alone though are actually pretty simple:
>
> 1) change the terminal to "raw" mode. the default is to buffer lines,
> which means your application doesn't get anything until a
On Thu, Nov 18, 2021 at 10:20:48PM +, pascal111 via Digitalmars-d-learn
wrote:
> In next program that rewrites original written texts into new files, I
> see that it may need some additions or we can accept it like this
> because it's just a simple program that achieve its task and doesn't
>
On Thu, Nov 18, 2021 at 12:39:12AM +, jfondren via Digitalmars-d-learn
wrote:
[...]
> If what you're wanting to do is to *reshape* text so that it prints
> with proper word-breaks across lines according to the current size of
> the terminal, then you've got to do this work yourself.
[...]
On Wed, Nov 17, 2021 at 11:12:22AM +, rempas via Digitalmars-d-learn wrote:
> On Tuesday, 16 November 2021 at 21:30:08 UTC, H. S. Teoh wrote:
> >
> > Short answer: a template called with the same CT arguments will only
> > be instantiated once, and reused thereafter.
> >
> > Long answer: the
On Wed, Nov 17, 2021 at 12:58:43AM +, pascal111 via Digitalmars-d-learn
wrote:
> How can I use types to make string and char variables that hold French
> and Greek characters?
For strings, just use `string`. :-) D strings are Unicode by default,
no further effort is needed to use it.
On Tue, Nov 16, 2021 at 09:14:50PM +, rempas via Digitalmars-d-learn wrote:
> Let's say that I have the following function:
>
> ```
> void add(T)(T val, T val2) { return val + val2; } // Classic example, lol
> ```
>
> Now let's say that I call the function passing an `int` parameter. The
>
On Mon, Nov 15, 2021 at 03:56:57PM +, WebFreak001 via Digitalmars-d-learn
wrote:
> I have an API with some struct like a file reader. I want to add
> byChunks-like functionality to it, so I'm trying to implement it with
> a helper struct that implements opApply. I have disabled copying the
>
On Thu, Nov 11, 2021 at 01:09:26AM +, forkit via Digitalmars-d-learn wrote:
> On Thursday, 11 November 2021 at 00:11:07 UTC, H. S. Teoh wrote:
> > On Wed, Nov 10, 2021 at 11:39:40PM +, forkit via Digitalmars-d-learn
> > wrote: [...]
> > > I still remember compiling code on my 286x86 ...
On Wed, Nov 10, 2021 at 11:39:40PM +, forkit via Digitalmars-d-learn wrote:
[...]
> I still remember compiling code on my 286x86 ... talk about low
> memory..whoaaah.
That's nothing! ;-)
When I was a kid, I programmed a computer that had only 48K of RAM
(that's 48 *kilo*bytes, not
On Wed, Nov 10, 2021 at 03:13:08PM -0800, Ali Çehreli via Digitalmars-d-learn
wrote:
> On 11/10/21 3:05 PM, H. S. Teoh wrote:
>
> > I cannot compile even simple programs on a low-memory system because
> > the compiler runs out of memory
>
> Did the -lowmem switch help in some cases?
On my
On Wed, Nov 10, 2021 at 10:17:48PM +, russhy via Digitalmars-d-learn wrote:
> On Wednesday, 10 November 2021 at 06:47:32 UTC, forkit wrote:
> > btw. My pc has 24GB of main memory, and my CPU 8MB L3 cache. So I
> > really don't give a damn about allocations .. not one little bit ;-)
>
> It's
On Thu, Nov 04, 2021 at 01:17:02PM -0700, Ali Çehreli via Digitalmars-d-learn
wrote:
> On 11/4/21 10:36 AM, H. S. Teoh wrote:
>
> > import __stdin : myversion;
>
> Where can we learn more of that magic? :)
[...]
I kinda cheated, because I was the one who implemented dmd's stdin
feature, so
On Thu, Nov 04, 2021 at 05:24:44PM +, Andrey Zherikov via
Digitalmars-d-learn wrote:
> On Thursday, 4 November 2021 at 17:09:31 UTC, Steven Schveighoffer wrote:
> > D doesn't have any equivalent for this.
>
> Is it possible to add this feature having `-C VERSION="1.2.3"` (`-D`
> is already
On Wed, Nov 03, 2021 at 01:33:28AM +, dangbinghoo via Digitalmars-d-learn
wrote:
> On Wednesday, 3 November 2021 at 00:50:31 UTC, pascal111 wrote:
> > How can I include "ncurses" liberary in D? I'm using Ubuntu and GDC!
>
> Search ncurses in Dub registray shows that there's 3 ncurses D
>
On Sun, Oct 31, 2021 at 09:54:23AM -0700, Ali Çehreli via Digitalmars-d-learn
wrote:
> On 10/31/21 9:49 AM, H. S. Teoh wrote:
>
> > The current spec explicitly states that masking pointers this way is UB.
>
> Ok. :) What about unions?
>
> union U {
> ulong u;
> void* p;
> }
>
> Can the GC
On Sat, Oct 30, 2021 at 07:56:35PM -0700, Ali Çehreli via Digitalmars-d-learn
wrote:
> On 10/30/21 3:47 PM, Elronnd wrote:
>
> > If the GC were moving, it would also have to move the pointers you
> > took to AA elements.
>
> I doubt D's GC can ever change pointer values because the values may
>
On Fri, Oct 29, 2021 at 05:58:24PM +, Paul Backus via Digitalmars-d-learn
wrote:
> On Friday, 29 October 2021 at 17:40:38 UTC, Andrey Zherikov wrote:
> > I want to have a pointer to a value in an associative array. Does AA
> > guarantee that the value will remain at the same address all the
>
On Wed, Oct 27, 2021 at 04:54:49PM +, Simon via Digitalmars-d-learn wrote:
> Microsofts C++ compiler provides the __debugbreak function, which on
> x86 emits interrupt 3, which will cause the debugger to halt. What is
> the equivalent in D? I tried using raise(SIGINT) from
> core.stdc.signal,
On Tue, Oct 19, 2021 at 09:20:39AM -0700, Charles Hixson via
Digitalmars-d-learn wrote:
> given this code fragment:
>
> if (i < (line.length - 3) )
> { writeln ("in c4: i = ", i, ", line.length = ",
> line.length);
> add2 (c4, line [i..i+4]);
> I
On Sat, Oct 09, 2021 at 11:58:14PM +, Greg Strong via Digitalmars-d-learn
wrote:
> This should be a simple question, but I'm having difficult finding an
> answer. How do I filter some elements of an array into a new array?
> The filter! function returns a range, but I can't seems to assign
On Wed, Oct 06, 2021 at 06:06:38PM +, anon via Digitalmars-d-learn wrote:
> I interface to a C library that gives me a malloced object. How can I manage
> that pointer so that it gets freed automatically.
> What I've thought of so far:
[...]
> * struct wrapped in automem/ refcounted: The
On Fri, Oct 01, 2021 at 06:30:48PM +, Danny Arends via Digitalmars-d-learn
wrote:
[...]
> Is there a sort() algorithm that avoids swapping the items themselves
> and e.g. just returns the indexes so I can reorder the original array
> myself ?
On Tue, Sep 21, 2021 at 08:36:49PM +, eugene via Digitalmars-d-learn wrote:
> On Tuesday, 21 September 2021 at 20:17:15 UTC, eugene wrote:
>
> > Now, change operation order in the main like this:
>
> Actually, all proposed 'fixes'
>
> - use stopper somehow in the end
On Tue, Sep 21, 2021 at 08:17:15PM +, eugene via Digitalmars-d-learn wrote:
[...]
> ```d
> void main(string[] args) {
>
> auto Main = new Main();
> Main.run();
>
> auto stopper = new Stopper();
> stopper.run();
> ```
[...]
> ```d
> void main(string[] args) {
>
> auto
On Tue, Sep 21, 2021 at 07:42:48PM +, jfondren via Digitalmars-d-learn
wrote:
> On Monday, 13 September 2021 at 17:18:30 UTC, eugene wrote:
> > I do not understand at all why GC considers those sg0 and sg1 as
> > unreferenced.
> > And why old gdc (without -Os) and old ldc do not.
>
>
On Mon, Sep 13, 2021 at 06:19:20PM +, NonNull via Digitalmars-d-learn wrote:
> On Monday, 13 September 2021 at 16:12:34 UTC, H. S. Teoh wrote:
> > On Mon, Sep 13, 2021 at 02:12:36PM +, NonNull via
> > Digitalmars-d-learn wrote:
> > > Which operators cannot be overloaded and why not?
> >
>
On Mon, Sep 13, 2021 at 02:12:36PM +, NonNull via Digitalmars-d-learn wrote:
> Which operators cannot be overloaded and why not?
Others have already given the list, so I won't repeat that. As to the
"why":
In general, D tries to avoid the wild wild west, every operator for
himself situation
On Sun, Sep 12, 2021 at 01:08:17AM +, Alex Bryan via Digitalmars-d-learn
wrote:
> I am having trouble discovering what the proper (or at least a proper)
> way is to write a function that can take either a static or dynamic
> array as a parameter. My current implementation consists of 2
>
On Fri, Sep 03, 2021 at 11:39:44PM +, Per Nordlöw via Digitalmars-d-learn
wrote:
> When is a phobos unittest supposed to be qualified with version
> `(StdUnittest)`? Ideally, always? I don't see that their current use
> is consistenly following a rule. If so, is the purpose of its presence
>
On Thu, Sep 02, 2021 at 02:28:23PM -0700, Charles Hixson via
Digitalmars-d-learn wrote:
[...]
> --
> Javascript is what you use to allow third part programs you don't know
> anything about and doing you know not what to run on your computer.
ROFL! I'm st^Wborrowing this for my quotes file. ;-)
On Thu, Sep 02, 2021 at 05:17:15PM +, DLearner via Digitalmars-d-learn
wrote:
[...]
> The following clean-compiled and produced the expected result:
> ```
> ubyte[10] Arr;
>
> immutable void* ArrPtr;
> shared static this() {
> ArrPtr = cast(immutable void*)([0]);
On Thu, Sep 02, 2021 at 04:01:19PM +, DLearner via Digitalmars-d-learn
wrote:
> Suppose there is a variable that is set once per run, and is
> (supposed) never to be altered again. However, the value to which it
> is set is not known at compile time.
This is the classic use case of
On Mon, Aug 30, 2021 at 11:27:07PM +, Merlin Diavova via
Digitalmars-d-learn wrote:
> Hi All,
>
> I'm trying to understand immutability in D and it seems a bit odd.
> I'm coming from dynamic languages so please forgive my ignorance and
> dynamic language-isms.
>
> I want to have a base
On Mon, Aug 30, 2021 at 12:06:46AM +, Booster via Digitalmars-d-learn wrote:
> I have some dates and date-times. I need to interpolate the date-times
> from the dates.
Try looking at std.datetime perhaps?
T
--
The diminished 7th chord is the most flexible and fear-instilling chord. Use it
On Wed, Aug 25, 2021 at 10:16:39PM +, DLearner via Digitalmars-d-learn
wrote:
> Please see below:
> ```
> void main() {
>import std.stdio;
>
>uint TestVar = 5;
>
>string mxnWrite_Size_t(string VarName) {
^^
Obviously, VarName is a string.
On Wed, Aug 25, 2021 at 04:46:54PM +, Joseph Rushton Wakeling via
Digitalmars-d-learn wrote:
> On Wednesday, 25 August 2021 at 10:59:44 UTC, Steven Schveighoffer wrote:
> > structs still provide a mechanism (postblit/copy ctor) to properly
> > save a forward range when copying, even if the
On Tue, Aug 24, 2021 at 08:36:18AM +, frame via Digitalmars-d-learn wrote:
> Consider a simple input range that can be iterated with empty(),
> front() and popFront(). That is comfortable to use with foreach() but
> what if the foreach loop will be cancelled? If a range isn't depleted
> yet
On Tue, Aug 17, 2021 at 07:53:52PM +, james.p.leblanc via
Digitalmars-d-learn wrote:
> On Tuesday, 17 August 2021 at 19:44:29 UTC, H. S. Teoh wrote:
> > You could use a helper template and an AliasSeq for this:
> >
> > template isAmong(T, S...) {
> > static if (S.length == 0)
On Tue, Aug 17, 2021 at 07:22:54PM +, james.p.leblanc via
Digitalmars-d-learn wrote:
[...]
> auto moo(T : (int || float || mySpecialStruct )(T myMoo) {•••}
>
> When re-using any such sets, it would be nice to define the set as
> follows:
>
> S = (int || float || mySpecialStruct)
>
> and
On Tue, Aug 17, 2021 at 06:11:56PM +, james.p.leblanc via
Digitalmars-d-learn wrote:
> Evening All,
>
> Eponymous templates allow a nice calling syntax. For example, "foo"
> here can be called without needing the exclamation mark (!) at calling
> sites. We see that foo is restricting a,
On Fri, Aug 13, 2021 at 04:35:54PM -0700, Ali Çehreli via Digitalmars-d-learn
wrote:
> On 8/13/21 4:23 PM, Marcone wrote:
>
> > string x = "Hello World!";
> > writeln(x[x.indexOf("e")..x.indexOf("r")]);
>
> I don't see the usefulness and there are the following problems with
> it:
>
> - Not an
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
> predefined location?
References are essentially pointers under the
On Mon, Aug 09, 2021 at 06:35:56PM +, james.p.leblanc via
Digitalmars-d-learn wrote:
[...]
> > **T[] foo_temp(Complex!T[])(T x, T y){
> > auto r = [x, x];
> > auto i = [y, y];
> > auto z = [ Complex!T(x, y), Complex!T(x,y) ];
> > return z;
> > }**
Your syntax is wrong; the
On Fri, Aug 06, 2021 at 06:02:01PM +, james.p.leblanc via
Digitalmars-d-learn wrote:
[...]
> However, do NOT feel stupid ... the motivation behind why
> I cannot use a standard int[your_max_length] (in other words,
> use a static array), is because I need to do a specified
> memory alignment
On Thu, Aug 05, 2021 at 04:53:38PM +, someone via Digitalmars-d-learn wrote:
[...]
> I already assumed that loading the data from file is a goner.
>
> So this leaves me with two choices:
>
> - keep the code as it is incurring higher-than expected
> compilation-time: this is solely used in a
On Thu, Aug 05, 2021 at 03:09:13PM +, someone via Digitalmars-d-learn wrote:
> On Thursday, 5 August 2021 at 10:28:00 UTC, Steven Schveighoffer wrote:
>
> > H.S. Teoh, I know you know better than this ;) None of this is
> > necessary, you just need `rtValue` for both runtime and CTFE (and
> >
On Thu, Aug 05, 2021 at 01:39:42AM +, someone via Digitalmars-d-learn wrote:
[...]
> What happens in the following case ?
>
> public immutable enum gudtLocations = [
>r"BUE"d : structureLocation(r"arg"d, r"Buenos Aires"d, r"ART"d),
>r"GRU"d : structureLocation(r"bra"d, r"São Paulo"d,
On Thu, Aug 05, 2021 at 12:47:06AM +, someone via Digitalmars-d-learn wrote:
> What are the pros/cons of the following approaches ?
1) If the constant is a POD (int, float, etc.), use:
enum myValue = ...;
2) If the constant is a string or some other array:
static immutable
On Mon, Aug 02, 2021 at 04:42:14PM +, Rekel via Digitalmars-d-learn wrote:
[...]
> Also slightly off topic, but when would one use an alias instead of a
> function/delegate? I haven't used aliases before.
When you want a compile-time binding that could potentially elide the
indirect function
On Mon, Aug 02, 2021 at 02:31:45PM +, Rekel via Digitalmars-d-learn wrote:
> I recently found one can return function calls to void functions,
> though I don't remember any documentation mentioning this even though
> it doesn't seem trivial.
This is intentional, in order to make it easier to
On Fri, Jul 30, 2021 at 03:41:32PM +, Tejas via Digitalmars-d-learn wrote:
> On Friday, 30 July 2021 at 14:40:17 UTC, Paul Backus wrote:
[...]
> > ```d
> > struct test1 {
> > // member variables...
> >
> > char* data() {
> > return cast(char*) ( + 1);
> > }
> > }
> > ```
>
On Fri, Jul 23, 2021 at 06:53:06PM +, JG via Digitalmars-d-learn wrote:
[...]
> 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
On Tue, Jul 20, 2021 at 11:32:26AM -0700, Ali Çehreli via Digitalmars-d-learn
wrote:
> On 7/19/21 11:20 PM, Tejas wrote:
>
> > trying to create the spaceship operator of C++
>
> Just to make sure, D's opCmp returns an int. That new C++ operator was
> added to provide the same semantics.
[...]
On Tue, Jul 20, 2021 at 02:39:58AM +, seany via Digitalmars-d-learn wrote:
> On Tuesday, 20 July 2021 at 02:31:14 UTC, H. S. Teoh wrote:
> > On Tue, Jul 20, 2021 at 01:07:22AM +, seany via Digitalmars-d-learn
> > wrote:
> > > On Tuesday, 20 July 2021 at 00:37:56 UTC, H. S. Teoh wrote:
> >
On Tue, Jul 20, 2021 at 01:07:22AM +, seany via Digitalmars-d-learn wrote:
> On Tuesday, 20 July 2021 at 00:37:56 UTC, H. S. Teoh wrote:
> > On Tue, Jul 20, 2021 at 12:07:10AM +, seany via Digitalmars-d-learn
> > wrote:
> > > [...]
> > [...]
> >
> > I didn't test this, but I'm pretty sure
On Tue, Jul 20, 2021 at 12:07:10AM +, seany via Digitalmars-d-learn wrote:
> Consider :
>
> for (int i = 0; i < max_value_of_i; i++) {
> foreach ( j, dummyVar; myTaskPool.parallel(array_to_get_j_from,
> my_workunitSize) {
>
> if ( boolean_function(i,j) ) continue;
>
On Fri, Jul 16, 2021 at 10:23:31PM +, Dennis via Digitalmars-d-learn wrote:
> On Friday, 16 July 2021 at 20:45:11 UTC, H. S. Teoh wrote:
> > Have you tried `pure`?
>
> The code in question is all `@safe pure nothrow`.
Hmm, OK. Not sure why .array isn't being inferred as unique... but yeah,
On Fri, Jul 16, 2021 at 08:19:32PM +, Dennis via Digitalmars-d-learn wrote:
[...]
> ```D
> immutable(int)[] positive(int[] input) @safe
> {
> return input.filter!(x => x > 0).array;
> }
> ```
[...]
> I could make another primitive (`iarraySort`), but I wonder if there
> are more convenient
On Fri, Jul 16, 2021 at 04:54:18PM +, Scotpip via Digitalmars-d-learn wrote:
[...]
> I simply need a fast binary serialisation lib to read and write a
> large list of structs to local disk - it's not for inter-app
> communication. The struct is simple and only contains primitive D data
>
On Thu, Jul 15, 2021 at 08:24:57PM +, Scotpip via Digitalmars-d-learn wrote:
[...]
> For starters, it's now clear to me that a strong understanding of
> Templates is essential to make much headway - that's why I got stuck
> here. They are dealt with towards the back of the books, but you
>
On Thu, Jul 15, 2021 at 06:08:45PM +, Scotpip via Digitalmars-d-learn wrote:
[...]
> ```
> auto byLine(Terminator, Char) (
> KeepTerminator keepTerminator = No.keepTerminator,
> Terminator terminator = '\x0a'
> )
> if (isScalarType!Terminator);
>
> auto byLine(Terminator, Char) (
>
On Thu, Jul 15, 2021 at 05:21:45PM +, Tejas via Digitalmars-d-learn wrote:
> I can do it like this in C++:
> ```
> template
> class def
> {
> friend typename abc;
> }
> ```
>
> I am just hopelessly confused on how to achieve the same in D.
D does not have `friend` declarations.
On Fri, Jul 09, 2021 at 05:11:06AM +, Виталий Фадеев via
Digitalmars-d-learn wrote:
[...]
> I using CPU Pentium B970 It is old CPU, but even it contains a
> graphics accelerator.
> Mesa DRI Intel(R) HD Graphics 2000 (SNB GT1), has 4 conveers on GPU.
> Smartphones also contains GPU.
> Because
On Wed, Jun 30, 2021 at 07:40:40PM +, someone via Digitalmars-d-learn wrote:
[...]
> @property int data() { return m_data; } // read property
[...]
> string something() @property { return this.whatever; }
[...]
> Now I am not sure which is the correct way.
[...]
Both are correct. :-)
On Wed, Jun 30, 2021 at 05:47:05PM +, someone via Digitalmars-d-learn wrote:
[...]
> ```d
> public string getAmountSI(
>in float lnumAmount
>) const {
[...]
> }
> ```
>
> I used to put all attributes BEFORE the function name which now I
> understand is completely wrong since they
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