I have a list of files to download, and I want to download them
in parallel. At the end of each of those parallel download I want
to send the main thread a message from the parallel loop.
import std.concurrency, std.parallelism;
string[] files = ["a", "b", "c"];
void download(string[] links)
On 2020-06-26 18:54, Denis wrote:
OK, now this makes sense.
I tested calling the same callback function directly from D: it compiled
and worked correctly. So at least prefixing the callback function with
`extern(C)` doesn't prevent the rest of the D program from calling it too.
No, of cours
On Friday, 26 June 2020 at 08:15:27 UTC, Jacob Carlborg wrote:
On Friday, 26 June 2020 at 00:30:22 UTC, Denis wrote:
extern(C) void cfunc(void function(int));
extern(C) void dcallback(int x) {...} <-- Why extern(C)?
cfunc(&dcallback);
Can this be rewritten, dropping the prefix f
On Friday, 26 June 2020 at 15:10:07 UTC, Adam D. Ruppe wrote:
On Friday, 26 June 2020 at 14:12:00 UTC, drathier wrote:
I'm trying to get this to compile, without much luck:
You might be able to make it a function:
bool foo()
{
auto fn(A)()
{
A delegate(A) fn;
fn = del
On Fri, Jun 26, 2020 at 02:12:00PM +, drathier via Digitalmars-d-learn
wrote:
> I'm trying to get this to compile, without much luck:
>
> ```
> bool foo()
> {
> template fn(A)
> {
> A delegate(A) fn;
> fn = delegate A(A a)
> {
> return fn(a);
>
On Fri, Jun 26, 2020 at 01:40:57PM +, Simen Kjærås via Digitalmars-d-learn
wrote:
> On Friday, 26 June 2020 at 13:21:25 UTC, drathier wrote:
> > How can I tell the compiler that I will never create a value of type
> > X, while still being able to write code that uses it? Using void as
> > a te
On 2020-06-26 15:16, Adam D. Ruppe wrote:
Yeah, I've been wanting to change that and use the native apis for years
but like I just haven't been able to figure out the documentation of them.
That would be nice.
That's the problem of everything Apple makes. Kinda drives me nuts
trying to keep
On Friday, 26 June 2020 at 14:12:00 UTC, drathier wrote:
I'm trying to get this to compile, without much luck:
You might be able to make it a function:
bool foo()
{
auto fn(A)()
{
A delegate(A) fn;
fn = delegate A(A a)
{
return fn(a);
};
On 2020-06-26 14:43, User wrote:
It is possible to statically link libcurl into your application. No need
to use OpenSSL as libcurl can be built with SChannel.
That sounds good.
It looks like I remembered wrong. std.net.curl uses `dlopen` on libcurl,
not OpenSSL. This might be less of an iss
On 2020-06-26 14:41, Kagamin wrote:
Maybe just start wget or something like that?
The point was to avoid runtime dependencies.
Since you want the latest certificate storage, you intend to support
only the latest system. Many root certificates will timeout now.
I didn't say the latest certi
On Friday, 26 June 2020 at 13:53:46 UTC, Johannes Loher wrote:
Am 26.06.20 um 15:35 schrieb ag0aep6g:
`isInputRange!R` fails because it has no knowledge of your
free `empty` function. Without `empty`, `R` is obviously not a
range.
Ah, OK, that makes sense. It's kind of sad though because it
I'm trying to get this to compile, without much luck:
```
bool foo()
{
template fn(A)
{
A delegate(A) fn;
fn = delegate A(A a)
{
return fn(a);
};
}
return fn!(bool)(true);
}
```
What am I missing here? How can I define a recursive dele
On 26.06.20 15:35, ag0aep6g wrote:
`isInputRange!R` fails because it has no knowledge of your free `empty`
function. Without `empty`, `R` is obviously not a range.
To be clear: It's the same with `front` and `popFront`. You can't
implement any range primitives as free functions.
It only work
Am 26.06.20 um 15:35 schrieb ag0aep6g:
> `isInputRange!R` fails because it has no knowledge of your free `empty`
> function. Without `empty`, `R` is obviously not a range.
Ah, OK, that makes sense. It's kind of sad though because it really
limits the extensibility of existing types with UFCS. Do y
On Friday, 26 June 2020 at 13:21:25 UTC, drathier wrote:
How can I tell the compiler that I will never create a value of
type X, while still being able to write code that uses it?
Using void as a template parameter is where I started, but I
still need to be able to declare variables inside this
On 26.06.20 15:09, Johannes Loher wrote:
import std.meta : allSatisfy, staticMap;
import std.traits : allSameType;
import std.range : isInputRange, ElementType, empty;
[...]
@property bool empty(TypeArgs...)(auto ref scope SumType!(TypeArgs) r)
if (allSatisfy!(isInputRange, TypeArgs) &
How can I tell the compiler that I will never create a value of
type X, while still being able to write code that uses it? Using
void as a template parameter is where I started, but I still need
to be able to declare variables inside this unreachable function,
like `T foo;` even when `T == void
On Friday, 26 June 2020 at 10:12:09 UTC, Jacob Carlborg wrote:
* Arsd [4]. Relies on OpenSSL
Yeah, I've been wanting to change that and use the native apis
for years but like I just haven't been able to figure out the
documentation of them.
Though for plain download, on Windows there's a hi
Recently, I read about problems regarding the API design of ranges (not
being able to make them const, differences between class and struct
based ranges etc.).
One of the issues that came up what the fact that sometimes it is useful
to use the class wrappers `InputRangeObject` etc. if you need to
On Friday, 26 June 2020 at 10:12:09 UTC, Jacob Carlborg wrote:
Downloading files over TLS. This seems that it's something that
should be quite simple to do. My high level goals are
cross-platform and easy distribution. I don't need anything
fancy just a simple API like this:
download("https:/
On Friday, 26 June 2020 at 10:12:09 UTC, Jacob Carlborg wrote:
Windows:
I don't know that much of this platform.
* std.net.curl and basically all other options already
mentioned relies on OpenSSL, which is not provided by the
platform
* SChannel. As far as I know, this the the platform prov
On Friday, 26 June 2020 at 11:41:27 UTC, Jacob Carlborg wrote:
On Friday, 26 June 2020 at 11:10:27 UTC, ikod wrote:
[...]
Oh, it's that bad. That's disappointing.
[...]
I'm using a script (written in D) in my tool, DStep [1][2], to
identify which versions of libclang is available and to
On Friday, 26 June 2020 at 11:10:27 UTC, ikod wrote:
Hello,
re `requests` - it uses dlopen (and variants for OSX and
Windows, see
https://github.com/ikod/dlang-requests/blob/master/source/requests/ssl_adapter.d#L50). The reason for dlopen is simple - compatibility with both openssl ver 1.0 an
On Friday, 26 June 2020 at 10:12:09 UTC, Jacob Carlborg wrote:
Downloading files over TLS. This seems that it's something that
should be quite simple to do. My high level goals are
cross-platform and easy distribution. I don't need anything
fancy just a simple API like this:
download("https:/
Downloading files over TLS. This seems that it's something that
should be quite simple to do. My high level goals are
cross-platform and easy distribution. I don't need anything fancy
just a simple API like this:
download("https://url.com";, "/local/file");
Because of these goals, I have a fe
On Thursday, 25 June 2020 at 03:00:04 UTC, Dylan Graham wrote:
I'm currently making an automatic transmission controller with
Arduino. C++ just has too many traps that I keep falling into.
Since stability is critical (if the code screws up at 100km/h
I'm dead), I'd rather use a sane language li
On Friday, 26 June 2020 at 00:30:22 UTC, Denis wrote:
I have a two questions about calling C functions from D.
(1) When passing a D callback to a C function, is there a way
to write the code without having to prefix the callback
declaration with "extern(C)"?
It's not a big deal adding the pr
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