On Wed, Jun 23, 2021 at 04:01:24PM +, vit via Digitalmars-d-learn wrote:
[...]
> My question is not about ranges/iterators but if is good idea
> autodecoding custom string or not.
No. Autodecoding is one of the decisions we regret because it
introduces an unavoidable overhead on basically
On Thu, Jun 17, 2021 at 05:41:28PM -0400, Steven Schveighoffer via
Digitalmars-d-learn wrote:
[.[..]
> Oh, and to throw a monkey wrench in here, the value is a string, not
> an integer. So I can't use std.conv.to to verify the enum is valid
> (plus, then I'm running a switch twice).
>
> Any
On Thu, Jun 17, 2021 at 07:44:31PM +, JN via Digitalmars-d-learn wrote:
[...]
> Foo[int] foos = [
> 0: Foo("abc"),
> 1: Foo(5)
> ];
> }
> ```
>
> Why does D need the explicit declarations whereas C++ can infer it?
Because D does not support implicit construction. The
On Wed, Jun 16, 2021 at 02:42:41PM -0700, Ali Çehreli via Digitalmars-d-learn
wrote:
[...]
> Actually, it is news to me that the compiler can know (determine?) the
> address of a global variable.
[...]
The compiler does not (and cannot) know. But the runtime dynamic linker
can, and does. The
On Wed, Jun 16, 2021 at 08:44:46PM +, Brian via Digitalmars-d-learn wrote:
[...]
> struct item
> {
> string name;
> int type;
> };
[...]
> new_item = { "item1", 1 };
The {...} initializer syntax is only available in variable declarations,
e.g.:
item i = { "item1",
On Tue, Jun 15, 2021 at 02:20:11PM +, Paul Backus via Digitalmars-d-learn
wrote:
[...]
> It's a time-space tradeoff. As you say, caching requires additional
> space to store the cached element. On the other hand, *not* caching
> means that you spend unnecessary time computing the next element
On Sun, Jun 13, 2021 at 03:45:53PM +, Justin Choi via Digitalmars-d-learn
wrote:
> I'm currently learning D right now, and I was wondering why certain
> functions like std.stdio.readln can work both with and without
> parenthesis for the function call. I've tried looking through the
>
On Fri, Jun 11, 2021 at 02:05:31PM -0700, H. S. Teoh wrote:
[...]
> Huh, that doesn't look right. This was fixed since June last year, so it
> *should* have made it into the latest compiler releases already. Unless
> this one was missed somehow (but I doubt it).
[...]
Just checked on LDC 1.26.0,
On Fri, Jun 11, 2021 at 08:30:28PM +, Mike Brown via Digitalmars-d-learn
wrote:
> On Friday, 11 June 2021 at 16:28:48 UTC, H. S. Teoh wrote:
> > On Fri, Jun 11, 2021 at 03:20:49PM +, Mike Brown via
> > Digitalmars-d-learn wrote:
> > > On Friday, 11 June 2021 at 15:13:17 UTC, rikki
On Fri, Jun 11, 2021 at 03:00:00PM +, JG via Digitalmars-d-learn wrote:
> Is it specified somewhere which way the following program will be
> interpreted?
>
> import std;
>
> struct A
> {
> int x=17;
> }
>
> int x(A a)
> {
> return 100*a.x;
> }
>
On Fri, Jun 11, 2021 at 03:20:49PM +, Mike Brown via Digitalmars-d-learn
wrote:
> On Friday, 11 June 2021 at 15:13:17 UTC, rikki cattermole wrote:
[...]
> Right OK, mine says 1/1 unittests failed - but this should say
> Modules?
>
> I will interpret it as Modules, ty!
This is a bug that was
On Tue, Jun 08, 2021 at 05:10:47PM +, seany via Digitalmars-d-learn wrote:
[...]
> Profiling doesn't help, because different input is causing different
> parts of the program to become slow.
[...]
Do you have any more specific information about what kind of inputs
cause which parts of the
On Tue, Jun 08, 2021 at 02:47:18AM +, someone via Digitalmars-d-learn wrote:
> https://dlang.org/articles/safed.html
> https://dlang.org/dmd-linux.html#switches
> http://ddili.org/ders/d.en/functions_more.html
>
> Neither man dmd nor man dmd.conf appear to have a related/switch
> setting.
>
On Mon, Jun 07, 2021 at 03:26:27PM +, someone via Digitalmars-d-learn wrote:
> Consider the following code:
>
> ```d
> class classComputer {
[...]
> }
>
> class classComputers {
>
>classComputers lhs;
>classComputers rhs;
>
>int opApply(int delegate(classComputers) dg) { ///
On Sat, Jun 05, 2021 at 01:46:45AM +, someone via Digitalmars-d-learn wrote:
[...]
> As I am writing code today I am encountering a lot of these situations.
>
> cast(ushort)(this.pintBottom1 - 1)
>
> My first walkaround for this was intuitive:
>
> this.pintBottom1 - cast(ushort) 1 /// I
On Wed, May 19, 2021 at 05:53:12PM +, Alain De Vos via Digitalmars-d-learn
wrote:
> It seems I need }; for a function a delegate and an alias.
> ```
> double function(int) F = function double(int x) {return x/10.0;};
> double delegate(int) D = delegate double(int x) {return c*x/10.0;};
>
On Sun, May 16, 2021 at 06:33:04PM +, Alain De Vos via Digitalmars-d-learn
wrote:
> On Sunday, 16 May 2021 at 18:27:40 UTC, H. S. Teoh wrote:
[...]
> > -snip-
> > import std.stdio:writeln;
> >
> > int [] fun() @safe {// N.B.: need @safe
> >
On Sun, May 16, 2021 at 05:24:40PM +, Alain De Vos via Digitalmars-d-learn
wrote:
> On Sunday, 16 May 2021 at 16:58:15 UTC, H. S. Teoh wrote:
> > On Sun, May 16, 2021 at 04:40:53PM +, Alain De Vos via
> > Digitalmars-d-learn wrote:
> > > This works also,
> > >
> > > ```
> > > import
On Sun, May 16, 2021 at 04:40:53PM +, Alain De Vos via Digitalmars-d-learn
wrote:
> This works also,
>
> ```
> import std.stdio:writeln;
>
> int [] fun(){
> int[3]s=[1,2,3];
> int[] r=s;
> return r;
> }
>
> void main(){
> writeln(fun()[0]);
> }
> ```
On Sat, May 15, 2021 at 02:31:08PM +, Alain De Vos via Digitalmars-d-learn
wrote:
> Which parts in dlang don't you use and why ?
>
> Personally i have no need for enum types, immutable is doing fine.
> Auto return types i find dangerous to use.
> Voldermont types.
> Named initialiser.
>
On Sat, May 15, 2021 at 11:25:10AM +, Chris Piker via Digitalmars-d-learn
wrote:
[...]
> Basically the issue is that if one attempts to make a range based
> pipeline aka:
>
> ```d
> auto mega_range = range1.range2!(lambda2).range3!(lambda3);
> ```
> Then the type definition of mega_range is
On Thu, Apr 22, 2021 at 11:44:51PM +, Rekel via Digitalmars-d-learn wrote:
> On Thursday, 22 April 2021 at 23:41:33 UTC, H. S. Teoh wrote:
> > On Thu, Apr 22, 2021 at 10:47:17PM +, Rekel via Digitalmars-d-learn
> > wrote:
> > > I'm not sure why this is happening, but after simplifying my
On Thu, Apr 22, 2021 at 10:47:17PM +, Rekel via Digitalmars-d-learn wrote:
> I'm not sure why this is happening, but after simplifying my code I
> traced it back to what the title may suggest.
Keep in mind that CTFE does not support reinterpretation via unions,
i.e., reading values from a
On Tue, Apr 20, 2021 at 03:56:33PM -0400, Steven Schveighoffer via
Digitalmars-d-learn wrote:
[...]
> I'm wondering if anyone has a "Write once" type, that is, a type that
> allows you to write it exactly once, and is treated like
> initialization on first setting (i.e. allows writing to
On Thu, Apr 15, 2021 at 08:56:18PM +, mw via Digitalmars-d-learn wrote:
[...]
> of course, one can manually dispatch:
>
> if (userInputString == "cat") createCat();
> else if (userInputString == "dog") createDog();
> ...
>
> but this this tedious.
---
// Disclaimer:
On Thu, Apr 08, 2021 at 08:28:44PM +, Alain De Vos via Digitalmars-d-learn
wrote:
> The ascii code of 0 is 48 so I think you can add everywhere 48 (but
> I'm not a specialist)
Why bother with remembering it's 48? Just add '0', like this:
int a = [1, 0, 1, 0, 1, ...];
string
On Fri, Apr 02, 2021 at 05:05:21AM +, mw via Digitalmars-d-learn wrote:
[...]
> This is just an example, what if the exact length is not known
> statically, is there a functions to trim the `\0`s?
Another way, if you want to avoid the extra allocation, slice the static
array with .indexOf:
On Fri, Apr 02, 2021 at 05:05:21AM +, mw via Digitalmars-d-learn wrote:
[...]
> This is just an example, what if the exact length is not known
> statically, is there a functions to trim the `\0`s?
What about `s.until('\0')`?
Example:
auto s = "abc\0\0\0def";
auto t = "blah"
On Fri, Apr 02, 2021 at 04:32:53AM +, mw via Digitalmars-d-learn wrote:
[...]
> ---
> import std;
> import std.conv : text;
>
>
> void main()
> {
> char[6] s;
> s = "abc";
> writeln(s, s.length); // abc6, ok it's the static array's length
>
> string t = text("head-", s,
On Fri, Apr 02, 2021 at 02:36:21AM +, Jon Degenhardt via
Digitalmars-d-learn wrote:
> On Thursday, 1 April 2021 at 19:55:05 UTC, H. S. Teoh wrote:
[...]
> > It's interesting that whenever a question about D's performance pops
> > up in the forums, people tend to reach for optimization flags.
On Thu, Apr 01, 2021 at 09:16:09PM +, Imperatorn via Digitalmars-d-learn
wrote:
> On Thursday, 1 April 2021 at 21:13:18 UTC, H. S. Teoh wrote:
[...]
> > Thanks for the very interesting information; so it looks like most
> > of the time spent is actually in copying array elements than
> >
On Thu, Apr 01, 2021 at 01:17:15PM -0700, Ali Çehreli via Digitalmars-d-learn
wrote:
> On 4/1/21 12:55 PM, H. S. Teoh wrote:
>
> > - Constructing large arrays by appending 1 element at a time with
> > `~`. Obviously, this requires many array reallocations and the
> > associated copying
>
> And
On Thu, Apr 01, 2021 at 07:25:53PM +, matheus via Digitalmars-d-learn wrote:
[...]
> Since this is a "Learn" part of the Foruam, be careful with
> "-boundscheck=off".
>
> I mean for this little snippet is OK, but for a other projects this my
> be wrong, and as it says here:
>
On Thu, Apr 01, 2021 at 04:52:17PM +, Nestor via Digitalmars-d-learn wrote:
[...]
> ```
> import std.stdio;
> import std.random;
> import std.datetime.stopwatch : benchmark, StopWatch, AutoStart;
> import std.algorithm;
>
> void main()
> {
> auto sw = StopWatch(AutoStart.no);
>
On Mon, Mar 29, 2021 at 07:28:23PM +, Adam D. Ruppe via Digitalmars-d-learn
wrote:
> On Monday, 29 March 2021 at 19:06:33 UTC, Marcone wrote:
> > Why can't I just use: import vibe.vibe; for import packages like Nim
> > or Python? Why I still use DUB?
>
> I don't use dub. Just dmd -i after
On Tue, Mar 30, 2021 at 12:32:36AM +, mw via Digitalmars-d-learn wrote:
> On Monday, 19 November 2018 at 22:32:55 UTC, H. S. Teoh wrote:
> > Actually, the case is unnecessary, because arrays implicitly convert
> > to void[], and pointers are sliceable. So all you need is:
> >
> >
On Tue, Mar 16, 2021 at 11:28:00PM +, mw via Digitalmars-d-learn wrote:
[...]
> suppose:
>
> double[] data; // D type: dynamic array
>
> As of 2021 what's the correct way to allocate and deallocate (free
> memory to the system immediately) D's dynamic array?
[...]
Note that T[] is just a
On Thu, Mar 11, 2021 at 06:06:35PM +, Chris Piker via Digitalmars-d-learn
wrote:
[...]
> Today I ran across a situation where an immutable associative array
> would be handy. While perusing the language spec I noticed here:
>
> https://dlang.org/spec/hash-map.html#static_initialization
>
On Fri, Mar 05, 2021 at 10:01:37PM +, Imperatorn via Digitalmars-d-learn
wrote:
> Basically none of the examples on here compile:
> https://dlang.org/library/std/conv/parse.html
>
> Any idea why?
File a bug.
T
--
By understanding a machine-oriented language, the programmer will tend to
On Fri, Mar 05, 2021 at 08:24:26PM +, Jack via Digitalmars-d-learn wrote:
> On Friday, 5 March 2021 at 20:18:44 UTC, Max Haughton wrote:
> > On Friday, 5 March 2021 at 20:13:54 UTC, Jack wrote:
[...]
> > > But the ones heap may never run at all, is that right?
> >
> > You can't rely on the
On Fri, Mar 05, 2021 at 08:03:58PM +, Jack via Digitalmars-d-learn wrote:
> On Friday, 5 March 2021 at 09:23:29 UTC, Mike Parker wrote:
> > On Friday, 5 March 2021 at 05:31:38 UTC, Jack wrote:
> > > The following code returns a memory error. I did notice it did
> > > happens whenever I did a
On Fri, Mar 05, 2021 at 02:13:39AM +, Jack via Digitalmars-d-learn wrote:
> something like filter[1] but that stops at first match? are there any
> native functions for this in D or I have to write one? just making
> sure to not reinvent the wheel
[...]
Why not just .front? E.g.:
On Fri, Mar 05, 2021 at 01:47:41AM +, Anthony via Digitalmars-d-learn wrote:
> Hello,
>
> I'm trying to run multiple unittest files with rdmd.
> So far I use `find` to just pipe in the files. Eg:
>
>
> time find source -name *__tests.d -exec rdmd -unittest --main
> -I../libprelude/source
On Thu, Mar 04, 2021 at 06:43:57AM +, user1234 via Digitalmars-d-learn
wrote:
> On Thursday, 4 March 2021 at 05:44:53 UTC, harakim wrote:
> > For the record, I was able to resolve all of my issues in about 7
> > hours. That included upgrading from DerelictSDL to bindbc and
> > converting to
On Mon, Mar 01, 2021 at 08:05:57PM +, Jack via Digitalmars-d-learn wrote:
> bool g(T)(T)
> {
> return __traits(compiles, mixin("{ enum a = t; }"));
> }
>
>
> int a;
> enum s = "";
> // both return false but g(s) is expected to return true
> pragma(msg, g(s));
> pragma(msg, g(a));
On Sat, Feb 27, 2021 at 01:03:56AM +, Jack via Digitalmars-d-learn wrote:
> On Friday, 26 February 2021 at 23:37:18 UTC, Murilo wrote:
> > On Friday, 26 February 2021 at 05:25:14 UTC, Jack wrote:
> > > I started with:
> > >
> > > enum isAssignableNull(T) = is(T : Object) || isPointer(T);
> >
On Fri, Feb 26, 2021 at 11:37:18AM -0800, H. S. Teoh via Digitalmars-d-learn
wrote:
> On Wed, Feb 24, 2021 at 08:10:30PM +, Mike Brown via Digitalmars-d-learn
> wrote:
> [...]
> > Thank you for the reply. Im struggling extending this to get the
> > nesting working.
[
On Wed, Feb 24, 2021 at 08:10:30PM +, Mike Brown via Digitalmars-d-learn
wrote:
[...]
> Thank you for the reply. Im struggling extending this to get the
> nesting working.
>
> I'm trying something like:
>
> string entry(string i, string[] inherit = []) {
> return i;
> }
>
> alias
On Fri, Feb 26, 2021 at 06:53:32PM +, evilrat via Digitalmars-d-learn wrote:
> On Friday, 26 February 2021 at 18:20:38 UTC, Maxim wrote:
> > On Friday, 26 February 2021 at 17:57:12 UTC, ryuukk_ wrote:
> > > "targetType": "executable",
> > >
> > > and it should just run using "dub run"
> >
On Wed, Feb 24, 2021 at 06:32:00PM +, Maxim via Digitalmars-d-learn wrote:
> On Wednesday, 24 February 2021 at 18:21:40 UTC, evilrat wrote:
> > On Wednesday, 24 February 2021 at 17:45:56 UTC, Maxim wrote:
> > >
> > > Unfortunately, I tried bindbc-sfml package but the problem is
> > > still
On Wed, Feb 24, 2021 at 03:52:57AM +, Kyle Ingraham via Digitalmars-d-learn
wrote:
[...]
> I was under the impression that compile-time or template parameters
> were only for types.
In D, template parameters can take not only types, but almost any type
(provided they are constructible at
On Tue, Feb 23, 2021 at 10:24:50PM +, Mike Brown via Digitalmars-d-learn
wrote:
> Hi all,
>
> Im porting some C++ code, which has a mess of a section that
> implements prime number type id's. I've had to smother it to death
> with test cases to get it reliable, I think metaprogramming that D
On Mon, Feb 22, 2021 at 08:59:01PM +, Greatsam4sure via Digitalmars-d-learn
wrote:
> Dlang is a system programming language. How do I access the battery
> level of my system using code in dlang? I will appreciate vide sample
There is no universal API for this. It depends on which OS you're
On Wed, Feb 17, 2021 at 03:38:00PM +, z via Digitalmars-d-learn wrote:
> So i've upgraded one of my structs to use the more flexible delegates
> instead of function pointers but when the member function tries to
> access the struct's members, the contents are random and the program
> fails.
On Tue, Feb 16, 2021 at 04:20:06AM +, z via Digitalmars-d-learn wrote:
> What would be the overall best manner(in ease of implementation and
> speed) to arbitrarily remove an item in the middle of an array while
> iterating through it?
> So far i've thought about simply using D's standard
On Fri, Feb 12, 2021 at 07:23:12AM +, frame via Digitalmars-d-learn wrote:
> On Friday, 12 February 2021 at 02:22:35 UTC, H. S. Teoh wrote:
>
> > This turns the OP's O(n log n) algorithm into an O(n) algorithm,
> > doesn't need to copy the entire content of the file into memory, and
> > also
On Fri, Feb 12, 2021 at 01:45:23AM +, mw via Digitalmars-d-learn wrote:
> On Friday, 12 February 2021 at 01:23:14 UTC, Josh wrote:
> > I'm trying to read in a text file that has many duplicated lines and
> > output a file with all the duplicates removed.
>
> If you only need to remove
On Wed, Feb 10, 2021 at 11:35:27PM +, WhatMeWorry via Digitalmars-d-learn
wrote:
[...]
> Okay, thanks. Then why does the README.md at
>
> https://github.com/dlang/druntime
>
> say "Runtime is typically linked together with Phobos in a release
> such that the compiler only has to link to a
On Sat, Feb 06, 2021 at 02:01:28AM +, Jack via Digitalmars-d-learn wrote:
> in C/C++ you have void* and C#'s object, to create a variable to hold
> a genetic type. So in C# you can do:
>
> class A {
> object foo;
> }
>
> and
>
> var a = new A();
> a.foo = any class...;
>
> does D have
On Wed, Feb 03, 2021 at 03:47:34PM +, Imperatorn via Digitalmars-d-learn
wrote:
> On Wednesday, 3 February 2021 at 14:00:23 UTC, JN wrote:
> > I am dealing with some nasty issue in my code. Basically random
> > unrelated lines of code are crashing with access violations, and if
> > I switch
On Wed, Feb 03, 2021 at 02:00:23PM +, JN via Digitalmars-d-learn wrote:
> I am dealing with some nasty issue in my code. Basically random
> unrelated lines of code are crashing with access violations, and if I
> switch from dmd to ldc the crash goes away, or crash comes back, or it
> crashes
On Fri, Jan 29, 2021 at 10:41:33PM +, WhatMeWorry via Digitalmars-d-learn
wrote:
> // The following four lines in run.lang.io
>
> int[] a;
> alias T = long;
> pragma(msg, is(typeof(a) : U[], U : T));
This means: "does the type of 'a' have the form U[], where U is a type
that implicitly
On Fri, Jan 29, 2021 at 12:45:02PM +, Imperatorn via Digitalmars-d-learn
wrote:
> On Wednesday, 27 January 2021 at 15:25:17 UTC, H. S. Teoh wrote:
> > On Wed, Jan 27, 2021 at 02:39:08PM +, Adam D. Ruppe via
> > Digitalmars-d-learn wrote:
> > > On Wednesday, 27 January 2021 at 14:36:16
To answer your other question:
On Thu, Jan 28, 2021 at 07:44:59PM +, kdevel via Digitalmars-d-learn wrote:
[...]
> After inserting print statements into the other modules I found that
> the additional four unittests originate from the imported files. Is
> there a trick to get only the
On Thu, Jan 28, 2021 at 07:44:59PM +, kdevel via Digitalmars-d-learn wrote:
> Today I moved some functions to a new module within the same package
> and ran
>
>dmd -g -i -unittest -checkaction=context -main -run .
>
> dmd reported
>
>5 unittests passed
Which version of dmd is this?
On Wed, Jan 27, 2021 at 05:17:18PM +, Paul Backus via Digitalmars-d-learn
wrote:
> On Wednesday, 27 January 2021 at 17:11:52 UTC, Leonardo wrote:
> > Hi, I want to know if are some way to dinamically create Tuples,
> > with variable size and types defined at runtime. Thanks.
>
> No. D is a
On Wed, Jan 27, 2021 at 02:39:08PM +, Adam D. Ruppe via Digitalmars-d-learn
wrote:
> On Wednesday, 27 January 2021 at 14:36:16 UTC, Adam D. Ruppe wrote:
> > (btw as for me fixing it myself
>
> oh edit, I should point out it also requires some degree of language
> change to match what
On Wed, Jan 27, 2021 at 01:28:33AM +, Paul Backus via Digitalmars-d-learn
wrote:
> On Tuesday, 26 January 2021 at 23:57:43 UTC, methonash wrote:
> > > Using AA's may not necessarily improve performance. It depends on
> > > what your code does with it. Because AA's require random access
> >
On Tue, Jan 26, 2021 at 06:13:54PM +, methonash via Digitalmars-d-learn
wrote:
[...]
> I cannot post the full source code.
Then we are limited in how much we can help you.
> Regarding a reduced version reproducing the issue: well, that's
> exactly what the nested foreach loop does. Without
On Tue, Jan 26, 2021 at 05:40:36PM +, methonash via Digitalmars-d-learn
wrote:
[...]
> 1) Read a list of strings from a file
> 2) De-duplicate all strings into the subset of unique strings
> 3) Sort the subset of unique strings by descending length and then by
> ascending lexicographic
On Tue, Jan 26, 2021 at 02:12:17PM +, Adam D. Ruppe via Digitalmars-d-learn
wrote:
> On Monday, 25 January 2021 at 21:48:10 UTC, Vitalii wrote:
> > Q: Why filling assoc.array in shared library freeze execution?
>
> D exes loading D dlls are very broken on Windows. You can kinda make
> it
On Mon, Jan 25, 2021 at 06:45:43PM +, Saurabh Das via Digitalmars-d-learn
wrote:
> On Monday, 25 January 2021 at 18:19:24 UTC, H. S. Teoh wrote:
[...]
> > It's probably a bug. File a bug on bugzilla: https://issues.dlang.org
[...]
> > DMD's backend is known to have obscure bugs that crop up
On Mon, Jan 25, 2021 at 06:43:18PM +, Rempas via Digitalmars-d-learn wrote:
> On Monday, 25 January 2021 at 18:28:09 UTC, Ferhat Kurtulmuş wrote:
> > On Monday, 25 January 2021 at 17:38:21 UTC, Rempas wrote:
> > > On Monday, 25 January 2021 at 10:33:14 UTC, Mike Parker wrote:
> > > > [...]
> >
On Mon, Jan 25, 2021 at 06:07:46PM +, Saurabh Das via Digitalmars-d-learn
wrote:
> I'm seeing what appears to be a bug with the -O flag in dmd.
[...]
> The assert trips when run with "rdmd -O test.d" and it does not trip
> when run with "rdmd test.d".
It's probably a bug. File a bug on
On Friday, 22 January 2021 at 17:29:08 UTC, Steven Schveighoffer
wrote:
On 1/22/21 11:57 AM, Jon Degenhardt wrote:
[...]
Another way to look at it: If split (eager) took a predicate,
that 'xyz.splitter(args).back' and 'xyz.split(args).back'
should produce the same result. But they will not
On Thu, Jan 21, 2021 at 05:43:37PM -0500, Steven Schveighoffer via
Digitalmars-d-learn wrote:
> auto sp1 = "a|b|c".splitter('|');
>
> writeln(sp1.back); // ok
>
> auto sp2 = "a.b|c".splitter!(v => !isAlphaNum(v));
>
> writeln(sp2.back); // error, not bidirectional
>
> Why? is it an oversight,
On Wed, Jan 20, 2021 at 09:57:59PM +, Paul Backus via Digitalmars-d-learn
wrote:
> On Wednesday, 20 January 2021 at 19:01:19 UTC, frame wrote:
> > On Wednesday, 20 January 2021 at 13:11:09 UTC, Paul Backus
> > >
> > > Please post an example with enough code to actually produce the
> > >
On Mon, Jan 18, 2021 at 11:43:20AM +, aberba via Digitalmars-d-learn wrote:
[...]
> It talks how the use of GC is desired even in a game engine like
> Unreal. Several AAA title's have been built on Unreal.
>
> Apparently you can't convince people who have made up their mind about
> GC being
On Fri, Jan 15, 2021 at 09:04:13PM +, welkam via Digitalmars-d-learn wrote:
> On Friday, 15 January 2021 at 07:35:00 UTC, H. S. Teoh wrote:
> > (1) Refactored one function called from an inner loop to reuse a
> > buffer instead of allocating a new one each time, thus eliminating a
> > large
On Fri, Jan 15, 2021 at 08:19:18PM +, tsbockman via Digitalmars-d-learn
wrote:
[...]
> However, generational GCs are somewhat closer to LIFO than what we
> have now, which does provide some performance gains under common usage
> patterns. People have discussed adding a generational GC to D
On Fri, Jan 15, 2021 at 04:22:59PM +, IGotD- via Digitalmars-d-learn wrote:
[...]
> Are we talking about the same things here? You mentioned DMD but I was
> talking about programs compiled with DMD (or GDC, LDC), not the nature
> of the DMD compiler in particular.
>
> Bump the pointer and
On Fri, Jan 15, 2021 at 03:18:31PM +, IGotD- via Digitalmars-d-learn wrote:
[...]
> Bump the pointer is a very fast way to allocate memory but what is
> more interesting is what happens when you return the memory. What does
> the allocator do with chunks of free memory? Does it put it in a
On Thu, Jan 14, 2021 at 12:36:12PM +, claptrap via Digitalmars-d-learn
wrote:
[...]
> I think you also have to consider that the GC you get with D is not
> state of the art, and if the opinions expressed on the newsgroup are
> accurate, it's not likely to get any better. So while you can find
On Wed, Jan 13, 2021 at 07:51:08PM +, aberba via Digitalmars-d-learn wrote:
[...]
> So Adam's tool setup is pretty clear (talked to him). What remains is
> calling Java classes and interacting with the Android's API. I know a
> little bit of Java but not enough Android. Just the calling
>
On Wed, Jan 13, 2021 at 06:58:56PM +, Marcone via Digitalmars-d-learn wrote:
> I've always heard programmers complain about Garbage Collector GC. But
> I never understood why they complain. What's bad about GC?
It's not merely a technical issue, but also a historical and
sociological one.
On Sun, Jan 10, 2021 at 06:58:13PM +, aberba via Digitalmars-d-learn wrote:
> I'm looking to explore running a D application on Android based on
> Adams previous foundation work. However, I'm not familiar with the
> Android + D integration so I need some help.
>
> Has any of you successfully
On Thu, Jan 07, 2021 at 07:00:15PM +, sighoya via Digitalmars-d-learn wrote:
> On Thursday, 7 January 2021 at 18:12:18 UTC, H. S. Teoh wrote:
[...]
> > Wrong. Out of memory only occurs at specific points in the code
> > (i.e., when you call a memory allocation primitive).
>
> What about
On Thu, Jan 07, 2021 at 05:47:37PM +, sighoya via Digitalmars-d-learn wrote:
> On Thursday, 7 January 2021 at 14:34:50 UTC, H. S. Teoh wrote:
> > This has nothing to do with inlining. Inlining is done at
> > compile-time, and the inlined function becomes part of the caller.
>
> True
>
> >
On Thu, Jan 07, 2021 at 11:15:26AM +, sighoya via Digitalmars-d-learn wrote:
> On Thursday, 7 January 2021 at 10:36:39 UTC, Jacob Carlborg wrote:
[...]
> > It's claimed that exceptions are not zero cost, even when an
> > exception is not thrown. Because the compiler cannot optimize
> >
On Thu, Jan 07, 2021 at 12:01:23AM +, sighoya via Digitalmars-d-learn wrote:
> On Wednesday, 6 January 2021 at 21:27:59 UTC, H. S. Teoh wrote:
[...]
> > You don't need to box anything. The unique type ID already tells
> > you what type the context is, whether it's integer or pointer and
> >
On Wed, Jan 06, 2021 at 05:36:07PM +, sighoya via Digitalmars-d-learn wrote:
> On Tuesday, 5 January 2021 at 21:46:46 UTC, H. S. Teoh wrote:
> > 4) The universal error type contains two fields: a type field and a
> > context field.
> >
> > a) The type field is an ID unique to every thrown
On Tue, Jan 05, 2021 at 06:23:25PM +, sighoya via Digitalmars-d-learn wrote:
> Personally, I don't appreciate error handling models much which
> pollute the return type of each function simply because of the
> conclusion that every function you define have to handle errors as
> errors can
On Tue, Dec 29, 2020 at 07:39:14PM +, Raikia via Digitalmars-d-learn wrote:
[...]
> So interestingly, I actually got this to work by running "sudo wine"
> instead of just "wine". No idea why wine needs root access on the
> underlying system for wine to operate properly but ok...
>
> Now I'm
On Tue, Dec 29, 2020 at 12:50:06PM -0500, Steven Schveighoffer via
Digitalmars-d-learn wrote:
> On 12/29/20 12:45 PM, H. S. Teoh wrote:
[...]
> > You need to add 'static' to the (outer) struct declarations in your
> > unittest block, because otherwise they *will* have a context
> > pointer.
>
>
On Tue, Dec 29, 2020 at 05:13:19PM +, Arjan via Digitalmars-d-learn wrote:
[...]
> On the C/C++ side there is no static. I added those on the D side to
> to make sure there is no context pointer being added, since that will
> change the layout and size of struct. (in the c/c++ code those
On Tue, Dec 22, 2020 at 04:47:13AM +, Rekel via Digitalmars-d-learn wrote:
[...]
> Defending array-notation by giving an example of explicitly not using
> declared aliases makes no sense to me.
> When I define 2d arrays, or index them, I think in row -> column terms
> (often math notation for
On Thu, Dec 17, 2020 at 06:57:08PM +, IGotD- via Digitalmars-d-learn wrote:
[...]
> How does this connect to the array with zero elements? According to
> your explanation if I have understood it correctly, capacity is also
> indicating if the pointer has been "borrowed" from another array
>
On Thu, Dec 17, 2020 at 06:10:25PM +, IGotD- via Digitalmars-d-learn wrote:
[...]
> b.m_buffer.length 2, b.m_buffer.capacity 31
> b.m_buffer.length 0, b.m_buffer.capacity 0
>
> capacity 0, suggests that the array has been deallocated.
Are you sure?
My understanding is that capacity is
On Fri, Dec 11, 2020 at 07:49:12PM +, vnr via Digitalmars-d-learn wrote:
> For a project with good performance, I would need to be able to
> analyse text. To do so, I would write a parser by hand using the
> recursive descent algorithm, based on a stream of tokens. I started
> writing a lexer
On Tue, Dec 01, 2020 at 10:49:55PM +, ddcovery via Digitalmars-d-learn
wrote:
> Yesterday I really shocked when, comparing one algorithm written in
> javascript and the equivalent in D, javascript performed better!!!
[...]
> With 1 million Double numbers (generated randomly):
> Javascript
401 - 500 of 1572 matches
Mail list logo
