Hi,
I'm trying D for the first time and so far I'm really impressed
with both D and vibe-d.
My test project is an application server and I want to use
SQLite3 as its database. I understand Vibe.d uses an async model
under the hood and so my question is are Vibe-d and ddbc
compatible?
Than
On Sunday, 12 February 2023 at 15:24:14 UTC, Steven Schveighoffer
wrote:
Any synchronous calls will just be synchronous. They aren't
going to participate in the async i/o that vibe uses.
In other words, when you block on a call to sqlite, it will
block everything else in your web server until
On Sunday, 12 February 2023 at 19:38:47 UTC, Steven Schveighoffer
wrote:
That might work, depending on args. As documented in the API,
if anything in args are mutable references, then it is run as a
task, and the same problem still applies (it will use a fiber,
and count on the concurrency of v
On Monday, 13 February 2023 at 01:43:38 UTC, Steven Schveighoffer
wrote:
I think it needs to be immutable if it's a reference.
-Steve
I have tested args with isWeaklyIsolated!(typeof(arg)) and it
looks like good news 👍️
Thanks for your help, Steve.
The app is just a test echo server. JSON sent in the body of a
POST request is echoed back to the client. On Pop!_OS it works
fine but on Windows it responds, there's a delay of about 10
seconds and then it crashes with the error:
```
Error Program exited with code -1073741819
```
Here's the
I am trying to implement a simple map function. I found code to
do this in another post but it only seems to work with lambda
functions and I do not understand why. Any help would be greatly
appreciated
```
import std.stdio;
T[] map_vals(T,S)(scope T function(S) f, S[] a){
auto b = new T[
thanks a lot both! Yes I'm aware that map exists already. This
was didactic. I had tried to find out whether lambdas generate
function pointers but also couldn't figure that one out :D
following this example in the documentation of map:
```
import std.algorithm.comparison : equal;
import std.conv : to;
alias stringize = map!(to!string);
assert(equal(stringize([ 1, 2, 3, 4 ]), [ "1", "2", "3", "4" ]));
```
I would like to write a function that takes as its parameter a
functi
On Monday, 21 February 2022 at 23:07:44 UTC, Ali Çehreli wrote:
On 2/21/22 12:44, steve wrote:
...
thanks for your help. I'm unfortunately still a bit confused.
Maybe I wasn't clear or maybe I'm just missing something here.
What I was trying to return is function that can then be applied
to
Thank you both a lot for your help. I am new to D so all of this
is incredibly helpful. This seems like an amazing community!
@Ali I will have a look at std.functional as I think this is
really what I was looking for. Until then, I have solved the
problem with a simple class (e.g. below). I'm
float times_two(float x) {return 2*x;}
// if you would rather make sure the result is an array
float[] times_two_array(float[] arr) {
import std.algorithm; // for map
import std.array; // for array
return arr
.map!times_two // map your function
.array; // convert to an array
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