On Sunday, 22 April 2018 at 06:00:15 UTC, WhatMeForget wrote:
foreach(i, elem; a)
{
int[] temp = new int[](5);
..
a[i] = &temp;
}
You're taking the address of a local variable and persisting it
beyond the variable's scope. This is not safe in general;
compilers
On Friday, 4 May 2018 at 15:36:29 UTC, wjoe wrote:
I have a class that I want to be able to register callbacks and
I'd like to be able to register any callable - functions,
delegates, lambdas, anything.
Is there another way to do it besides converting those
toDelegate, which states a bug with
On Friday, 4 May 2018 at 19:12:16 UTC, ag0aep6g wrote:
If toDelegate isn't (always) @safe, how can you be sure that
your wrapper is?
If it were @safe, the compiler would accept it.
Looking at the code, I believe there are several casts that the
compiler can't verify but are used safely.
Al
On Saturday, 5 May 2018 at 16:42:12 UTC, Sisor wrote:
Error: template std.string.stripRight cannot deduce function
from argument types
You used
http://dpldocs.info/experimental-docs/std.string.stripRight.html
This function only takes one argument and strips whitespace.
You want
http://dpld
On Tuesday, 15 May 2018 at 20:36:21 UTC, Dennis wrote:
I have a file with two problems:
- It's too big to fit in memory (apparently, I thought 1.5 Gb
would fit but I get an out of memory error when using
std.file.read)
Memory mapping should work. That's in core.sys.posix.sys.mman for
Posix s
On Friday, 18 May 2018 at 23:53:12 UTC, IntegratedDimensions
wrote:
Why does D complain when using == to compare with null? Is
there really any technical reason? if one just defines == null
to is null then there should be no problem. It seems like a
pedantic move by who ever implemented it and
On Saturday, 19 May 2018 at 01:48:38 UTC, Jonathan M Davis wrote:
Actually, that runtime function has existed since before TDPL
came out in 2010. It even shows the implementation of the free
function opEquals (which at the time was in object_.d rather
than object.d). I'm not even sure that the
On Saturday, 19 May 2018 at 04:30:24 UTC, Jonathan M Davis wrote:
On Saturday, May 19, 2018 03:32:53 Neia Neutuladh via
Digitalmars-d-learn wrote:
> Of course, the most notable case where using == with null is
> a terrible idea is dynamic arrays, and that's the case where
>
On Saturday, 26 May 2018 at 17:12:38 UTC, Dr.No wrote:
What's D's way to do that? I need it to be mutable array of
wchar because a Windows function requires that.
Alternative to go down to using pointers, which would be
something like:
wchar[] w = new wchar[s.length];
memcpy(w.ptr, s.ptr, s.
On Saturday, 26 May 2018 at 15:00:40 UTC, Malte wrote:
This compiles with DMD, however it returns random numbers
instead of the value I passed in. Looks like a bug to me.
Should that work or is there any other pattern I could use for
that?
Filed as https://issues.dlang.org/show_bug.cgi?id=189
On Monday, 28 May 2018 at 21:04:21 UTC, Dr.No wrote:
import std.parallelism : parallel;
foreach(t; parallel(arr))
{
if(!doSomething(t)) {
return false;
}
On Saturday, 2 June 2018 at 18:10:38 UTC, eastanon wrote:
Does D array implementation support an array of null values?
int a[4] = null;
But I ran into a type error while checking if a[i] is null
foreach(i; 0..3){
if(i == null){
writeln("it is null");
}
}
}
How do you set fixed size a
On Saturday, 2 June 2018 at 21:44:39 UTC, greatsam4sure wrote:
Sorry for the typo
is it possible to define infix function in D
3.min(5)// 3: where min is a function, works in D
3 min 5 // does not work.
thanks in advance
This is a horrible abuse of D's operator overloading discovered
by Fee
On Monday, 11 June 2018 at 00:47:27 UTC, Jonathan M Davis wrote:
Why do you care about detecting code that can throw an Error?
Errors are supposed to kill the program, not get caught. As
such, why does it matter if it can throw an Error?
Error is currently used for three different things:
* Th
On Wednesday, 13 June 2018 at 00:38:55 UTC, Jonathan M Davis
wrote:
It's possible to write programs that check and handle running
out of memory, but most programs don't, and usually, if a
program runs out of memory, it can't do anything about it and
can't function properly at that point.
Simu
On Sunday, 17 June 2018 at 10:58:29 UTC, Cauterite wrote:
Is there a reason scope(success) needs to set up for exception
handling?
Or is this a bug / potential enhancement ?
If you had no exception handling in place, you'd need to
duplicate code in the output. For instance:
void foo()
{
s
On Tuesday, 10 July 2018 at 22:53:25 UTC, kdevel wrote:
extern (C) __gshared bool rt_trapExceptions;
static this ()
{
rt_trapExceptions = false;
}
This will catch exceptions raised in main and in static
constructors that run after this one. However, if you put that
code in t
On Friday, 3 August 2018 at 19:41:32 UTC, Bastiaan Veelo wrote:
But if you commit it, and a compiler deprecation causes a
dependency in that pinned version to fail to compile, then your
app won't compile either, even though your code itself does not
suffer from the deprecation and even though a
On Sunday, 19 August 2018 at 18:32:17 UTC, QueenSvetlana wrote:
In the D Style Guide, it says:
Properties
https://dlang.org/dstyle.html#properties
Functions should be property functions whenever appropriate. In
particular, getters and setters should generally be avoided in
favor of property f
On Friday, 31 August 2018 at 06:20:09 UTC, James Blachly wrote:
Hi all,
I am linking to a C library which defines a symbol,
const char seq_nt16_str[] = "=ACMGRSVTWYHKDBN";
In the C sources, this is an array of 16 bytes (17 I guess,
because it is written as a string).
In the C headers, it is
On Friday, 31 August 2018 at 07:38:54 UTC, Marcin wrote:
https://github.com/dlang/dmd/blob/master/samples/listener.d
Can some one add more comment to that example?
I need to make code that connects to local application, very
similar to this.
Assumptions:
1. Create an application that listens
On Monday, 3 September 2018 at 03:04:57 UTC, Chris Katko wrote:
This should be simple? All I want to do is load an entire file,
and access individual bytes. The entire thing. I don't want to
have know the file size before hand, or "guess" and have a
"maximum size" buffer.
So far, all google s
On Wednesday, 12 September 2018 at 23:41:16 UTC, James Blachly
wrote:
When I add the "shared" attribute to an array, I am no longer
able to call reserve because the template won't instantiate:
Error: template object.reserve cannot deduce function from
argument types !()(shared(int[]), int), ca
On Sunday, 16 September 2018 at 16:28:20 UTC, Per Nordlöw wrote:
If I have
alias N = Nullable!(T, T nullValue)
fed as template parameter to another template how can I
at compile-time get the `nullValue` ?
import std.traits;
enum nullValue = TemplateArgsOf!(N)[1];
On Thursday, 20 September 2018 at 05:34:42 UTC, Chris Katko wrote:
All I want to do is loop from 0 to [constant] with a for or
foreach, and have it split up across however many cores I have.
You're looking at std.parallelism.TaskPool, especially the amap
and reduce functions. Should do pretty
On 10/10/2018 04:03 PM, James Japherson wrote:> Says that it cannot
interpret X(the class that contains the static> opApply).
It's a bit hard to diagnose the problem you're getting using that
function when we don't have the code that uses it. Or the context that's
referenced with the foreach loo
targetType "executable" does it for me (dub 1.11.0).
Can you post your full dub.sdl?
On Sun, 28 Oct 2018 18:00:06 +, Stanislav Blinov wrote:
> On Sunday, 28 October 2018 at 12:38:12 UTC, ikod wrote:
>
>> and object.opEquals(a,b) do not inherits safety from class C
>> properties, and also I can't override it.
>
> Yep. Since Object is the base class and it defines opEquals as:
The spec says that a user-defined attribute must be an expression, but DMD
accepts a wide range of things as UDAs:
struct Foo { string name = "unknown"; }
@Foo int bar;
`bar` has the *type* Foo as an attribute. It's not an *instance* of Foo.
So if I try to look at the UDAs:
static foreac
On Thu, 01 Nov 2018 11:35:27 -0700, Ali Çehreli wrote:
> On 11/01/2018 09:14 AM, Neia Neutuladh wrote:
>> The spec says that a user-defined attribute must be an expression, but
>> DMD accepts a wide range of things as UDAs:
>>
>>struct Foo { string name = "unknown"; }
>>@Foo int bar;
>>
>
On Thu, 01 Nov 2018 20:01:51 +, Stanislav Blinov wrote:
> Check if an UDA is a type?.. As in, not just `is(uda == Foo)`,
> but simply `is(uda)`:
Which works, but generally makes things more complex in code that's
already pretty deeply nested. It's also something I have to worry about
every t
On Thu, 01 Nov 2018 23:59:26 +, kerdemdemir wrote:
> I am doing trading and super scared of suprices like mathematical errors
> during the multiplications(or division 1/tickSize) since market will
> reject my orders even if there is a small mistake.
>
> Is this safe? Or is there a better way o
On Fri, 02 Nov 2018 00:36:18 +, Nicholas Wilson wrote:
>> What do you do to handle this?
>
> @Foo() int bar;
>
> instead of
>
> @Foo int bar;
Right. And if you're offering a library with UDAs for other people to use?
On Fri, 02 Nov 2018 04:01:00 +, Nicholas Wilson wrote:
> By noting that all (interesting for the purpose of UDA's i.e. not void)
> types have a .init
>
> or you could do
>
> static if (is(typeof(uda) == Foo) || is(uda == Foo))
Which, again, only tests for presence, when I want to check for p
On Tue, 06 Nov 2018 00:33:56 +, MatheusBN wrote:
> Just to be clear, when you say "x exists at the label Q", you mean at
> the same scope, right?
The same or an outer scope. It's also invalid to write:
goto Y;
{
int x;
{
Y:
}
}
> That's interesting but a bit confusing isn't?
>
> A
On Thu, 08 Nov 2018 12:45:57 +, Alex wrote:
> Hmm... not sure, if I got your idea... Do you think about something like
> this?
The point is dependency inversion. The class shouldn't need to know how to
build its dependencies; it should leave that to other code. The fact that
you can use the
On Thu, 08 Nov 2018 11:04:19 +, Sjoerd Nijboer wrote:
> I'm trying to invert the dependency from the classes `Bar -> Foo` to
> `Foo -> IFoo <- Bar` at compile time.
>
> I do want `Foo's` to be embedded into `Bar`
These goals are a *little* at odds with each other; having a scoped!Foo
puts si
On Thu, 08 Nov 2018 17:27:40 -0700, Jonathan M Davis wrote:
> You ran into one of the rare cases where it makes sense catch an Error
> or a Throwable, and you're one of the few people who understands the
> situation well enough to deal with it properly. The vast majority of D
> programmers don't. C
On Fri, 09 Nov 2018 02:03:36 +, Chris Katko wrote:
> Simple curious question.
>
> Why isn't :
>
> import std.stdio;
>
> instead:
>
> import std.io;
IO includes things like memory mapping, sockets, listing files, named
pipes, that sort of thing.
Standard IO includes only reading and writi
The following code doesn't work with @safe -dip1000:
int* p;
int i;
p = &i;
i has a shorter lifetime than p, the compiler complains.
But this code does:
int i;
int* p;
p = &i;
In both cases, p can't point to i before i exists, and p ceases to exist
when i ceases to exi
On Sat, 10 Nov 2018 11:47:24 +, Nicholas Wilson wrote:
> On Saturday, 10 November 2018 at 06:56:29 UTC, Neia Neutuladh wrote:
>> Is this right?
>
> Are you sure you added @safe to the second example?
> https://run.dlang.io/is/2RbOwK fails to compile.
Maybe take another look at the post you're
On Sat, 10 Nov 2018 16:25:40 +, Stanislav Blinov wrote:
> Yep, you just over-simplified the first case.
It is too simple to clearly illustrate why the code is invalid, but not so
simple that the compiler accepts that code.
> Consider:
>
> int* p;
> {
> int i;
> p = &i;
> }
> *p =
On Wed, 14 Nov 2018 19:28:44 +, WebFreak001 wrote:
> It's a real pain that you can't select specific commits in dub, but I
> try to keep up with the updates and make them work somehow.
Yeah, I've used submodules and path-based dependencies once or twice
because of that. It's not the best.
On Sat, 17 Nov 2018 13:55:24 +, aliak wrote:
> You can use "debug blah" to hide inside functions that are attributed,
> but when you have an attributed function that calls a template,
> attribtues of which are supposed to be inferred, it seems to fail.
You can explicitly mark a templated funct
On Sat, 17 Nov 2018 17:58:54 +, John Chapman wrote:
> The idea is that users could type (for example) makeWith!`Calendar`(…)
> instead of the longer makeWith!ICalendarFactory(…).
Your project might define a hundred types named ICalendarFactory; the
compiler can't figure out which one you're t
On Sat, 17 Nov 2018 21:16:13 +, aliak wrote:
> Could do. But it's not scalable. I'd have to comment out all the
> unittests that call the template function with a T that allocates inside
> the @nogc template (if I understood you correctly that it)
I meant something like:
void debugln(T...
On Sun, 18 Nov 2018 17:47:07 +, Vladimirs Nordholm wrote:
> Is there anyway to make it "neater"? Maybe something in one line:
>
> enum foo = version (Posix) { "posix" } : { "other" } ;
If you're doing it often:
T ifPosix(T)(T a, T b)
{
version (Posix) return a; else return b;
}
enum f
On Mon, 19 Nov 2018 21:23:31 +, Jordi Gutiérrez Hermoso wrote:
> When I was first playing with D, I managed to create a segfault by doing
> `SomeClass c;` and then trying do something with the object I thought I
> had default-created, by analogy with C++ syntax. Seasoned D programmers
> will re
On Mon, 19 Nov 2018 21:30:36 +, welkam wrote:
> So my question is in subject/title. I want to parse binary file into D
> structs and cant really find any good way of doing it. What I try to do
> now is something like this
>
> byte[4] fake_integer;
> auto fd = File("binary.data", "r");
> fd.raw
On Mon, 19 Nov 2018 14:32:55 -0800, H. S. Teoh wrote:
>> Standard caveats about byte order and alignment.
>
> Alignment shouldn't be a problem, since local variables should already
> be properly aligned.
Right, and the IO layer probably doesn't need to read to aligned memory
anyway.
Struct fiel
On Tue, 20 Nov 2018 00:30:44 +, Jordi Gutiérrez Hermoso wrote:
> On Monday, 19 November 2018 at 21:57:11 UTC, Neia Neutuladh wrote:
>
>> Programmers coming from nearly any language other than C++ would find
>> it expected and intuitive that declaring a class instance variable
>> leaves it null
On Tue, 20 Nov 2018 15:29:50 +, Kagamin wrote:
> On Tuesday, 20 November 2018 at 11:11:43 UTC, aliak wrote:
>> This only applies to little scripts and unittests maybe.
>>
>> Not when you're writing any kind of relatively larger application that
>> involves being run for longer or if there's mor
On Tue, 20 Nov 2018 23:14:27 +, Johan Engelen wrote:
> When you don't call `a.foo()` a dereference, you basically say that
> `this` is allowed to be `null` inside a class member function. (and then
> it'd have to be normal to do `if (this) ...` inside class member
> functions...)
That's what w
On Wed, 21 Nov 2018 17:00:29 +, Alex wrote:
> C# wouldn't reject the case above, would it?
C# *would* reject that (you can't call any methods on a null object), but
in D, it compiles and runs and doesn't segfault.
On Wed, 21 Nov 2018 20:15:42 +, welkam wrote:
> In D classes are reference type and unless you mark them as final they
> will have vtable.
Even if you mark your class as final, it has a vtable because it inherits
from Object, which has virtual functions. The ProtoObject proposal is for a
bas
On Thu, 22 Nov 2018 15:50:01 +, Stefan Koch wrote:
> I'd say the problem here is not just false positives, but false
> negatives!
False negatives are a small problem. The compiler fails to catch some
errors some of the time, and that's not surprising. False positives are
highly vexing becaus
On Fri, 23 Nov 2018 17:21:25 -0800, H. S. Teoh wrote:
> Ddoc may have its stink points, but in this case, the stuff inside
> version(Windows) blocks simply isn't compiled, so you can't expect ddoc
> to do much about it. You can't just arbitrarily ddoc everything inside
> version blocks, because th
On Fri, 23 Nov 2018 21:43:01 -0700, Jonathan M Davis wrote:
> A solution like that might work reasonably well, but you still
> have the problem of what to do when a symbol is documented in multiple
> version blocks, and having almost all the documentation in one version
> block and a few pieces of
Easiest way is to put this in your build script:
find path/to/package -name '*.d' | \
xargs grep '^module ' | \
sed 's,^module,import,' \
> data/modules.d
Add `-J data` to your DMD command line, or add `"stringImportPaths":
["data"]` to dub.json.
Then in your file:
mixin(import("module
On Sun, 25 Nov 2018 20:46:28 +, Tony wrote:
> From std.compiler.D_major and std.compiler.D_minor I see that my D
> language version is at 2.0 . But the version of gdc front-end I am using
> (via Debian default gdc package as of a few months ago) from
> std.compiler.version_major and std.compile
On Tue, 27 Nov 2018 02:00:44 +, PacMan wrote:
> f is defined as:
>
>> void f(T)(T t, string p)
>> if(is(T == A) || is(T == B))
>>{
>> // ...
>>}
>
> my goal is get "p" as string.
`f` is a template that generates functions. Before you instantiate that
template, the function doesn't exis
On Tue, 27 Nov 2018 18:22:17 +, PacMan wrote:
> I've been looking for a function or library to parse a date in a custom
> format (for validation) similar to C#'s [1]
> TryParseExactbut I couldn't find any. so far I only found
> fromISOExtString(), and fromSimpleString() which doesn't allow me t
On Thu, 29 Nov 2018 21:11:06 +, John Chapman wrote:
> Is there any way to get a string representing a function's exact
> signature as declared in the source? I can generate it myself using
> reflection but it might not be 100% verbatim so wanted to know if
> there's anything built in?
>
>f
On Fri, 30 Nov 2018 20:41:03 +, ikod wrote:
> I can't find the reason why nogc/nothrow can't be inferred in this case:
>
> class S(K,V)
> {
> auto get/*()*/(K a) {
> return 0;
> }
> }
> void main() @nogc nothrow {
> S!(int, string) sia;
> auto v = sia.get(1);
> }
On Fri, 30 Nov 2018 22:10:11 +, ikod wrote:
> Thanks for explanation, got it.
>
> My case is actually
>
> interface I(K,V)
> {
> int get()(K);
> }
Interface functions must be abstract. Templated functions are implicitly
final. Final things can't be abstract.
If there's something about
On Mon, 03 Dec 2018 21:27:52 +, faissaloo wrote:
> Then shouldn't the following output false, false, true?
An object reference is a pointer value. The pointer values are copied. The
pointed-at objects are not copied.
Furthermore, the syntax
Object[6] array = new Object();
only allocate
On Fri, 07 Dec 2018 02:37:34 +, Arun Chandrasekaran wrote:
> I'm trying to get the current function name and apparently the commented
> line errors out.
>
> What am I doing wrong?
Referring to nested functions is weird.
Dotted identifiers let you traverse aggregates. Modules, C++ namespaces
On Thu, 06 Dec 2018 22:50:49 +, albertas-jn wrote:
> If templates are a compile-time feature and instances of templates are
> generated by compiler at compile time, why is it possible to compile a
> template definition with dmd -lib or -c?
You compile files, not individual declarations like a
On Sat, 08 Dec 2018 20:16:09 +, Andrew Pennebaker wrote:
> I think it's lame to have to use magical code like `version(unittest) {}
> else` to guard our main functions, when we run unit tests. Could D go
> ahead and do the right thing, automatically shadowing our main functions
> when the unit
On Mon, 10 Dec 2018 11:08:23 +, Narxa wrote:
> Hello, people!
>
> I would like to have a constant with the value of some environment
> variable that is defined at compile time.
In your build script, echo the environment variable into a file. Then
import() that file and use the value.
> I kn
On Mon, 10 Dec 2018 17:58:32 +, aliak wrote:
> string parseConfig(string str) {
>string ret;
>foreach (line; str.split("\n")) {
> auto parts = line.split("=");
> ret ~= `string ` ~ parts[0] ~ ` = "` parts[2] `";`;
>}
>return ret;
> }
That works as long as none of the
On Fri, 14 Dec 2018 00:16:51 +, Michelle Long wrote:
> byte x = 0xF;
> ulong y = x >> 60;
"Error: shift by 60 is outside the range 0..31"
This is the result of integer promotion rules. Change the 30 to a 60 and
it works, and the result is, as you would expect, 0.
> I thought D required brea
On Sat, 15 Dec 2018 02:54:55 +, Heromyth wrote:
> shared static this() {
> writeln("running A in shared static this(),
> sharedField=", sharedField);
>
> Thread th = new Thread(() { });
> th.start();
When you start a D thread, thread-local static constructors
On Sat, 15 Dec 2018 13:49:03 +, Heromyth wrote:
> Yes, it's very dangerous to create a new thread in shared static this().
> For a big project, it sometimes hard to identify this problem. Maybe,
> the compiler should do something for this, should it?
The runtime, more likely. There are plenty
On Sat, 15 Dec 2018 17:19:05 +, Timoses wrote:
> Running `dub test` will output:
> Running ./unit-test-library writeln: unittest All unit tests have been
> run successfully.
>
> Why is the `shared static this()` not executed?
Run `dub clean; dub test -v` and you'll see that main.d isn't compi
On Mon, 17 Dec 2018 22:20:54 +, harfel wrote:
> I am looking for a way to serialize/deserialize the state of the
> std.random.Random number generator, ideally using orange
> (https://github.com/jacob-carlborg/orange) or another serialization
> library. From looking at the module source code, I
On Wed, 19 Dec 2018 12:57:14 +, Codifies wrote:
> I could do this with a few simple rules in a Makefile, but I have no
> clue how to achieve this using dub.
If you need dub, you can create a wrapper script that generates the dub
file for the plugins directory.
Make is a lot better for this k
On Wed, 19 Dec 2018 15:12:14 +, bauss wrote:
> That's assuming that it's compile-time data though.
>
> If not then you can't do what you want to do.
>
> What you can do is wrap it in a function in the mixin template which you
> just call after instantiating it.
Or while instantiating it:
mi
On Fri, 21 Dec 2018 10:56:39 +, Atila Neves wrote:
> I don't see how you can do this with dub, and I wouldn't attempt it
> either. Just use make, and have make call dub for the main project (and
> potentially any plugins that need it). Remember to make the dub targets
> `.PHONY` since you don't
On Sat, 22 Dec 2018 18:55:47 +, Dru wrote:
> I would like to use "deprecated" on a member function, but do it from a
> separate file
>
> this works:
> ///
> void func() {}
>
> deprecated {
>void func();
> }
You're defining two functions, presumably in two different modules and
with two
On Sat, 22 Dec 2018 21:33:14 +, Dru wrote:
> The first example shows that it is possible to deprecate a function
> separately from it's definition.
No, it doesn't. You declared two *different* functions. One was
deprecated; the other wasn't.
> I want to know if it is possible to "fix" the se
On Mon, 24 Dec 2018 08:16:01 -0800, H. S. Teoh wrote:
> Rather, it's *conventionally* taken to mean "unused". The language
> actually does not treat it in any special way apart from "normal"
> identifiers. It's perfectly valid (though probably not recommended!) to
> declare functions or variables
On Tue, 25 Dec 2018 13:03:13 +, Michelle Long wrote:
> But I am not talking about inside the template being used. The whole
> point of doing this is so that one can refer to the base class using the
> same name as the derived with a template parameter to make a composite
> structure.
The follo
On Tue, 25 Dec 2018 16:55:36 +, Neia Neutuladh wrote:
And I forgot part of it.
Let's say we did the work to make this function:
class X {}
template X(int N)
{
// `: X` somehow refers to the X in the outer scope
class X : X {}
}
How do you distinguish between the
1. Find the Thread object:
Tid threadId = spawn(&doStuff);
auto thread = Thread.getAll.filter!(x => x.id == threadId).front;
2. Check the `isRunning` property.
The indirection with spawn() is awkward.
On Tue, 25 Dec 2018 18:34:04 +, bauss wrote:
> I think there is a bigger problem at stake here in terms of software
> architecture.
>
> What's the point needed for them to have the same identifier?
A probably abstract base class with only one child class. Normally you
have "Foo" and "FooImpl
On Sun, 30 Dec 2018 05:36:41 +, Enjoys Math wrote:
> Is it:
>
> typeof(T).getHash(&o)?
This gets the hashcode for the object by calling toHash() on it.
> Or does that do something other than just get the address?
It XORs the address with a bitwise rotation of the address. This reduces
coll
On Tue, 01 Jan 2019 14:46:15 +, Ron Tarrant wrote:
> I've found a ton of syntax highlighter plugins for WordPress, but none
> that admit to supporting D. Anyone know of one?
I believe I use Enlighter for that:
https://wordpress.org/plugins/enlighter/
On Tue, 01 Jan 2019 14:05:43 +, Victor Porton wrote:
> In Ada2012 there are "subtypes". Subtypes can have tighter constraints
> (such as type invariants) than their base types.
>
> I have a struct X in D. Is it possible to define a type equivalent to X
> except that having tighter invariants?
On Thu, 03 Jan 2019 20:34:17 +, Machine Code wrote:
> Thank you very much, Ali. So the issue was basically I can't return from
> a static foreach() loop right?
The static foreach is done at compile time and the return is done at
runtime.
After the template is expanded, your code ends up look
On Thu, 03 Jan 2019 22:30:48 +, kdevel wrote:
> class A : D {
> int foo() { return 1; }
> }
>
> class B : A, D {
> [...]
>
> What is the meaning of the ", D"? It does not seem to make a difference
> if it is omitted.
B must provide its own implementation of D. It can't simply use A's
im
On Thu, 03 Jan 2019 23:44:15 +, Alex wrote:
> I assume that is another bug and has nothing to do with interfaces...
B.foo is both overriding A.foo and implementing D.foo, so that's not a bug.
On Fri, 04 Jan 2019 00:19:05 +, Alex wrote:
> B.foo overrides A.foo. By casting a B object to be an A object, A's
> behavior should be granted, shouldn't it?
I can't think of a single class system that works like that. C++, Java,
C#, Dart, and TypeScript all work like D here. GObject in C wor
On Fri, 04 Jan 2019 08:46:24 +, Alex wrote:
> Let's assume this is right. How to force a B object to behave like an A
> object? I thought casting is a possible approach...
It requires a bit of surgery:
import std.stdio;
class A
{
void foo() { writeln("hello from A!"); }
On Sat, 05 Jan 2019 13:01:24 +, Russel Winder wrote:
> Dub seems to have the inbuilt assumption that libraries are dependencies
> that do not change except via a formal release when you developing an
> application.
> Clearly there is the workflow where you want to amend the library but
> not re
On Sat, 05 Jan 2019 17:44:27 +, Neia Neutuladh wrote:
> 2. Different build configurations. The same source code has two
> different build targets; the executable doesn't depend on the library.
> Or, with enough bludgeoning, you can make the executable depend on the
> library.
Hit 'send' too so
On Sun, 06 Jan 2019 20:19:59 +, Rubn wrote:
> You can declare functions inside of functions in D. You weren't forward
> declare grow() in the module namespace, so much as you were forward
> declaring a new function grow.
Unfortunately, you can't do forward declarations for nested functions. If
On Fri, 11 Jan 2019 17:25:29 +, Enjoys Math wrote:
> Package peggged not found for registry at https://code.dlang.org/
The package name is pegged, not peggged. Two g's, not three.
On Sat, 12 Jan 2019 12:10:25 +, Droggl wrote:
> 2. Is there a way to get a certain git-version (eg. commit or maybe even
> just "latest") for a package in dub?
git submodule and path-based dependencies, if you need a particular
version.
> 3. How is everyone in general using curses with D? Is
On Mon, 14 Jan 2019 09:10:39 +, Vijay Nayar wrote:
> a.foo(1); // issues runtime error (instead of calling
> A.foo(int))
Calling the function doesn't issue any sort of error. Overriding one
overload without overloading or explicitly aliasing in the rest issues a
compile-time error.
If
1 - 100 of 129 matches
Mail list logo
