Comparison between a Variant and an array is straightforward. How
does one accomplish the same between a SumType and an array?
```d
import std.variant;
import std.sumtype;
import std.stdio;
struct S
{
SumType!(double[]) data; // {1}
}
void main()
{
Variant v = [1.7, 2.7, 3.7, 4.7, 5.7
On Tuesday, 11 June 2024 at 16:41:46 UTC, confuzzled wrote:
Also, assuming that {1} read "SumType!(double)[] data;", what
would be the proper way to accomplish the assignment at {2} and
the subsequent comparison.
Not sure how to do solve the fist part of the question yet but I
was able to
On Tuesday, 11 June 2024 at 16:41:46 UTC, confuzzled wrote:
Comparison between a Variant and an array is straightforward.
How does one accomplish the same between a SumType and an array?
Okay, this is what I came up with. Just a sanity check please.
Did I do this correctly? Is there somethin
Wondering if someone can help me with this. Mr. Adam D. Ruppe got
me 90% there, but I'm a little lost after reaching the 99% mark.
I want to use XLSX I/O to manipulate excel spreadsheets.
I've cloned, built, and installed the library. And with the help
of Adam, I am now able to import it and l
On Friday, 11 November 2022 at 03:15:17 UTC, confuzzled wrote:
When I try to compile it, I get a slew of errors about
undefined symbols. It wasn't finding libexpat and libminizip so
I copied those to my work directory and tried again. With that,
most of the errors disappeared. The remaining one
On Saturday, 12 November 2022 at 08:43:13 UTC, Mike Parker wrote:
On Saturday, 12 November 2022 at 02:45:52 UTC, confuzzled wrote:
The linker doesn't care if the libraries are C or D, and the
compiler is only involved in that you can pass flags to the
linker via the compiler command line.
On Saturday, 12 November 2022 at 11:44:06 UTC, Mike Parker wrote:
On Saturday, 12 November 2022 at 10:02:12 UTC, confuzzled wrote:
On Saturday, 12 November 2022 at 08:43:13 UTC, Mike Parker
wrote:
On Saturday, 12 November 2022 at 02:45:52 UTC, confuzzled
wrote:
The linker doesn't care if the
On Saturday, 12 November 2022 at 12:48:40 UTC, confuzzled wrote:
Right, so I figured that the dependencies for for
libxlsxio_read would be resolved when it was being
compiled/linked. Therefore, when I used it later, I would just
need to import its and include it on the command line. I didn't
Any known workaround for this most recent issue on macOS Sonoma?
The file I'm compiling contains a blank main() without any
imports but this error shows up on everything I've attempted to
compile since upgrading to Sonoma.
(dmd-2.105.2) confuzzled@test ~ % dmd add
ld: multiple errors: symbol c
On Wednesday, 4 October 2023 at 11:01:08 UTC, Johan wrote:
Try passing `-ld_classic` to the linker. (`dmd -L-ld_classic`)
https://github.com/ldc-developers/ldc/issues/4501#issuecomment-1738295459
-Johan
Thanks. This did the trick.
I've ported a small script from C to D. The original C version takes
roughly 6.5 minutes to parse a 12G file while the port originally took
about 48 minutes. My naïve attempt to improve the situation pushed it
over an hour and 15 minutes. However, replacing std.stdio:File with
core.stdc.stdio:F
Good morning,
First, thanks to you, Steve, and Julian for responding to my inquiry.
On 11/3/23 4:59 AM, Sergey wrote:
On Thursday, 2 November 2023 at 15:46:23 UTC, confuzzled wrote:
I've ported a small script from C to D. The original C version takes
roughly 6.5 minutes to parse a 12G file w
On 11/3/23 2:30 AM, Steven Schveighoffer wrote:
On Thursday, 2 November 2023 at 15:46:23 UTC, confuzzled wrote:
You should use a buffering library like iopipe to write properly here
(it handles the encoding of text for you).
Thanks Steve, I will try that.
Given the following union
union F
{
double x;
struct {
ulong lo;
ulong hi;
}
}
I do not understand the output below. Please clarify.
import std.stdio;
void main()
{
F fp;
fp.lo.writeln; // Why is this not zero? How is this value derived?
fp.hi.writeln; //
On 12/6/23 4:28 AM, Adam D Ruppe wrote:
On Tuesday, 5 December 2023 at 19:24:51 UTC, confuzzled wrote:
Given the following union
union F
{
double x;
struct {
ulong lo;
ulong hi;
}
}
The default value of this would be `double.init`, since the first member
of the un
On 12/6/23 4:47 AM, H. S. Teoh wrote:
On Wed, Dec 06, 2023 at 04:24:51AM +0900, confuzzled via Digitalmars-d-learn
wrote:
[...]
Also, if you don't understand how floating-point in computers work, I
highly recommend reading this:
https://docs.oracle.com/cd/E19957-01/806
Hello all,
I have two scripts. I copied the first directly from the alpaca
website and massaged it with etc.c.curl until it compiled in D.
The result is that it creates the order and returns the result to
stdout. In the second script, I tried to use std.net.curl but
cannot get it to work.
T
On 3/26/24 8:44 PM, Andrea Fontana wrote:
On Tuesday, 26 March 2024 at 07:13:24 UTC, confuzzled wrote:
I think you should use the HTTP interface, did you check this docs?
https://dlang.org/phobos/std_net_curl.html#.HTTP
https://dlang.org/phobos/std_net_curl.html#.HTTP.addRequestHeader
Andrea
I apologize for the newbie question but how do I get the lambda
the following to execute and return a string instead of the
function pointer?:
private static immutable string[] typeNames = [staticMap!(T =>
typeof(T).stringof, TypeSeq)];
I currently get this error:
```D
sumtype.d(61): Error:
On 6/15/25 9:06 AM, Steven Schveighoffer wrote:
On Monday, 9 June 2025 at 07:24:41 UTC, confuzzled wrote:
Hello community,
Is it possible to accomplish the following using ref instead of
pointers? If so, please share an example.
A ref cannot be a member of a type. But ref can be returned by
Good day all,
What is the proper way to assign to accomplish this?
ulong rdtsc() {
ulong result;
uint* res = cast(uint*) &result;
asm {
rdtsc; // Puts result in edx:eax
// Cast our ulong's address to a 32-bit integer pointer
// and move the register values i
On 7/5/25 1:06 AM, confuzzled wrote:
ulong rdtsc() {
ulong result;
uint* res = cast(uint*) &result;
asm {
rdtsc; // Puts result in edx:eax
// Cast our ulong's address to a 32-bit integer pointer
// and move the register values into the correct memory lo
Hello community,
Is it possible to accomplish the following using ref instead of
pointers? If so, please share an example.
import std.stdio;
// Represents our large, external data source (like TimeSeries)
struct DataSource
{
int[3] data;
}
// Represents our Backtester engine
struct Engin
On 6/10/25 2:17 AM, Ali Çehreli wrote:
On 6/9/25 12:24 AM, confuzzled wrote:
> Is it possible to accomplish the following using ref instead of
> pointers?
Your example is a good case for a pointer. Was there a reason why a
reference should be used?
Just exploring the realm of possibilities
On 6/9/25 11:16 PM, monkyyy wrote:
On Monday, 9 June 2025 at 07:24:41 UTC, confuzzled wrote:
Hello community,
Is it possible to accomplish the following using ref instead of
pointers? If so, please share an example.
The hard part is the `foreach` the simple answer is throw a ref before
`v
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