On Tuesday, 28 June 2022 at 21:14:42 UTC, Marcone wrote:
Is there any way to do this automatically like Python?
https://docs.python.org/3/download.html
Of course there is. But someone has to volunteer their time and
effort to do it ;-)
On Tuesday, 28 June 2022 at 18:42:11 UTC, Marcone wrote:
Beloved,
I love programming in D. D is my favorite programming language.
I'm not a professional programmer, but I love to program. I
would like to learn D deeply. Most programming languages have a
PDF/CHM/MOBI/ePub version of the
On Sunday, 12 June 2022 at 05:46:17 UTC, Mike Parker wrote:
I don't get it.
How does this enable one module to access the private parts of
another module?
Isn't 'private' *always* private to the module?
The idea I had, was to be able to spread a 'module' over more
than one file - for
On Sunday, 12 June 2022 at 05:05:46 UTC, forkit wrote:
e.g. If I could something like this:
// foo_1.d
module foo_1
private int a; // a is private to module foo_1
// foo_2.d
module foo_2
private int b; // b is private to module foo_2
// foo.d
module foo[dependencies:foo_1, foo_2];
import
Is it possible to create a package.d, consisting of (for
example), two modules, where each module can access private
declarations within each other.
In essence, declaring 'a module level friendship', or a kind of
'extended module' if you want.
I might still want to add another module to the
On Wednesday, 8 June 2022 at 01:32:42 UTC, Steven Schveighoffer
wrote:
I like `$`. It's got a well-defined meaning, and already is
somewhat magic.
-Steve
I agree it's magic.
warray[5..$] - this is one of the best uses of syntax magic in D!
I think it's what first attracted me to the
On Wednesday, 8 June 2022 at 01:11:45 UTC, Mike Parker wrote:
...The author withdrew the DIP
..
That's a shame.
Seems like a useful language feature. I'd be using it already if
it existed.
I'd have gone for:
int[..] arr = [1,2,3];
On Sunday, 15 May 2022 at 21:33:24 UTC, Ali Çehreli wrote:
I still think my answer is the real one. My implied question
remains: Why does C++ have struct and class disticnction? I
know they have different default access specifications but does
that warrant two kinds?
Here is a
On Tuesday, 17 May 2022 at 04:37:58 UTC, Ali Çehreli wrote:
In you OOP example, I am curious why you chose Shape to be an
interface, rather than a base class.
On Sunday, 15 May 2022 at 15:26:40 UTC, Kevin Bailey wrote:
I've done some scripting in D over the years but I never dug
into D until recently. I'm going through Learning D and I was
reminded that structs and classes are so different.
- struct methods are non-virtual while class methods are
On Sunday, 15 May 2022 at 15:59:17 UTC, Alain De Vos wrote:
Can i summarize ,
structs are value-objects which live on the stack.
class instances are reference objects which live on the heap.
the real difference, is that structs, being value types, are
passed by value, and classes, being
On Friday, 13 May 2022 at 15:56:31 UTC, H. S. Teoh wrote:
My mental image of this is Ali presenting some simple common
task, then at 3/4 of the presentation there's an amazing trick
that lets you write it in D in 5 times less code than in other
languages, and my mind is blown and I remember
On Friday, 13 May 2022 at 03:31:53 UTC, Ali Çehreli wrote:
On 5/12/22 18:56, forkit wrote:
> So...you want to do a talk that challenges D's complexity, by
getting
> back to basics?
I wasn't thinking about challenging complexity but it gives me
ideas.
I am looking for concrete topics like
On Thursday, 12 May 2022 at 21:58:33 UTC, Ali Çehreli wrote:
I am considering proposing a presentation for DConf 2022.
Would a "Back to Basics" style presentation be interesting? If,
so what exact topic would you like to see?
For ideas, here is what CppCon 2021 had on their track:
On Tuesday, 10 May 2022 at 03:22:04 UTC, MichaelBi wrote:
s is the string, and print result as following:
s.array.sort!("athen how to transfer into
[['A',231],['C',247],['G',240],['T',209]]? tried map!, but can
only sortout key or value... tried array(), but result is not
sorted
On Friday, 6 May 2022 at 07:51:01 UTC, Alexander Zhirov wrote:
On Friday, 6 May 2022 at 05:40:52 UTC, forkit wrote:
auto myTuple = line.split(" = ");
Well, only if as a strict form :)
well.. a settings file should be following a strict format.
..otherwise...anything goes... and good luck
On Thursday, 5 May 2022 at 17:53:57 UTC, Alexander Zhirov wrote:
I want to use a configuration file with external settings. I'm
trying to use regular expressions to read the `Property =
Value` settings. I would like to do it all more beautifully. Is
there any way to get rid of the line break
On Wednesday, 4 May 2022 at 21:55:18 UTC, H. S. Teoh wrote:
On Wed, May 04, 2022 at 09:46:50PM +, forkit via
Digitalmars-d-learn wrote: [...]
That languages with GC typically give the programmer some
control over the GC, is evidence that programmers do care
(otherwise such features would
On Wednesday, 4 May 2022 at 15:04:13 UTC, cc wrote:
The MemUtils package offers a `ScopedPool` utility that seems
interesting. It isn't well documented however so I have no
idea if it actually works like I expect. I presume this would
work something akin to a VM memory snapshot/rollback for
On Wednesday, 4 May 2022 at 12:57:26 UTC, Ali Çehreli wrote:
On 5/3/22 22:37, forkit wrote:
> In any case, I disagree that caring about when memory gets
deallocted
> means you shouldn't be using GC. (or did I get that one wrong
too??)
At least I don't agree with you there. :) Yes, one should
On Wednesday, 4 May 2022 at 08:23:33 UTC, Mike Parker wrote:
On Wednesday, 4 May 2022 at 05:37:49 UTC, forkit wrote:
That's not at all what I said. You don't have to care about
*when* memory is deallocated, meaning you don't have to
manage it yourself.
In any case, I disagree that caring
On Wednesday, 4 May 2022 at 05:13:04 UTC, Mike Parker wrote:
On Wednesday, 4 May 2022 at 04:52:05 UTC, forkit wrote:
It is certainly *not* about you not having to care anymore
(about memory management).
That's not at all what I said. You don't have to care about
*when* memory is
On Wednesday, 4 May 2022 at 02:42:44 UTC, Mike Parker wrote:
On Tuesday, 3 May 2022 at 14:57:46 UTC, Alain De Vos wrote:
Note, It's not i'm against GC. But my preference is to use
builtin types and libraries if possible,
But at the same time be able to be sure memory is given free
when a
On Saturday, 2 April 2022 at 23:40:39 UTC, Marcone wrote:
ImportC is deprecated as everything in D is deprecated and
abandoned. No link works, every download link is broken as no
one cares. All D code is always full of bugs and needs to be
corrected by the user before trying to run it, in
On Friday, 4 March 2022 at 02:10:11 UTC, Salih Dincer wrote:
On Thursday, 3 March 2022 at 20:23:14 UTC, forkit wrote:
On Thursday, 3 March 2022 at 19:28:36 UTC, matheus wrote:
I'm a simple man who uses D with the old C mentality:
[...]
```d
string s, str = "4A0B1de!2C9~6";
On Thursday, 3 March 2022 at 19:05:22 UTC, Leonardo wrote:
I saw the new feature called ImportC, it's cool to be able to
use C code/libraries, but I'm not much experience in C and
didn't understand this incomplete documentation:
https://dlang.org/spec/importc.html
How to use ImportC?
I
On Thursday, 3 March 2022 at 19:28:36 UTC, matheus wrote:
I'm a simple man who uses D with the old C mentality:
import std.stdio;
void main(){
string s, str = "4A0B1de!2C9~6";
foreach(i;str){
if(i < '0' || i > '9'){ continue; }
s ~= i;
}
writeln("Result: ", s);
On Friday, 18 February 2022 at 16:45:24 UTC, Ali Çehreli wrote:
...
I think that syntax will be obviated when D will have named
arguments.
Ali
Huh? D doesn't have named arguments, already?
That's an important component for safe(r) programming.
Do you know if there is a DIP for this, and
On Monday, 14 February 2022 at 11:37:38 UTC, ag0aep6g wrote:
On 14.02.22 12:14, forkit wrote:
However, if I uncomment the //import std.uni : isWhite;
then it will compile.
I don't understand. I thought 'import std;' would be
sufficient here??
"isWhite" is ambiguous. There's std.uni.isWhite
This code will not compile.
Error: no overload matches for `split`
However, if I uncomment the //import std.uni : isWhite;
then it will compile.
I don't understand. I thought 'import std;' would be sufficient
here??
//
module test;
@safe:
import std;
void main()
{
//import
On Sunday, 13 February 2022 at 00:43:18 UTC, Mike Parker wrote:
If you’ve installed dmd via one of the supported installers (or
the zip), you should already have the html files for the spec.
On Windows, they’re in a subdirectory. I assume on other
platforms they’re in the standard doc
On Thursday, 10 February 2022 at 01:43:54 UTC, H. S. Teoh wrote:
On Thu, Feb 10, 2022 at 01:32:00AM +, MichaelBi via
Digitalmars-d-learn wrote:
On Wednesday, 9 February 2022 at 19:48:49 UTC, H. S. Teoh
wrote:
> [...]
thanks, very helpful! i am using a assocArray now...
Are you sure
On Tuesday, 8 February 2022 at 10:17:19 UTC, Ola Fosheim Grøstad
wrote:
I don't use GPG often, so I probably did something wrong, and
failed to get a trusted verification. I do like the idea that a
hacker cannot change the signature file if gaining access to
the web/file hosts, but how to
It is not possible to do a simple iteration over directories in
@safe mode.
Really? I have to resort to unsafe??
//
module test;
@safe: // nope. no can do.
import std;
void main()
{
auto dFiles = dirEntries("", "*.{d,di}", SpanMode.depth);
foreach(d; dFiles)
On Friday, 4 February 2022 at 15:58:19 UTC, Stanislav Blinov
wrote:
..
...
As others have already stated, casting immutability away is
something that has to be supported, e.g. to interface with
const-agnostic APIs. `@safe` requires such casts to be more
verbose, with good reason.
I concede
On Friday, 4 February 2022 at 10:09:22 UTC, Patrick Schluter
wrote:
On Thursday, 3 February 2022 at 02:01:34 UTC, forkit wrote:
On Thursday, 3 February 2022 at 01:57:12 UTC, H. S. Teoh wrote:
would be nice if the compiler told me something though :-(
i.e. "hey, dude, you really wanna to
On Friday, 4 February 2022 at 10:09:22 UTC, Patrick Schluter
wrote:
On Thursday, 3 February 2022 at 02:01:34 UTC, forkit wrote:
On Thursday, 3 February 2022 at 01:57:12 UTC, H. S. Teoh wrote:
would be nice if the compiler told me something though :-(
i.e. "hey, dude, you really wanna to
On Thursday, 3 February 2022 at 03:25:39 UTC, H. S. Teoh wrote:
On Thu, Feb 03, 2022 at 02:01:34AM +, forkit via
Digitalmars-d-learn wrote: [...]
would be nice if the compiler told me something though :-(
i.e. "hey, dude, you really wanna to that?"
Mark your func
On Thursday, 3 February 2022 at 01:57:12 UTC, H. S. Teoh wrote:
would be nice if the compiler told me something though :-(
i.e. "hey, dude, you really wanna to that?"
On Thursday, 3 February 2022 at 01:39:33 UTC, forkit wrote:
oops! forgot the .dup
char[] palindrome = cast(char[])"able was I ere I saw elba".dup;
;-)
On Wednesday, 2 February 2022 at 23:30:50 UTC, H. S. Teoh wrote:
On Wed, Feb 02, 2022 at 11:21:52PM +, forkit via
Digitalmars-d-learn wrote: [...]
char[] palindrome = cast(char[])"able was I ere I saw
elba";
String literals are immutable by default. Casting immutable t
Any reason why compiling this with ldc would cause the exe to
crash?
Compiling with DMD (using either declaration of palindrome works
just fine though)
//
module test;
import std;
void main()
{
char[] palindrome = cast(char[])"able was I ere I saw elba";
//char[] palindrome
On Wednesday, 26 January 2022 at 11:25:47 UTC, Iain Buclaw wrote:
Whenever I've watched talks/demos where benchmarks were the
central topic, GDC has always blown LDC out the water when it
comes to matters of math.
..
https://dlang.org/blog/2020/05/14/lomutos-comeback/
On Tuesday, 25 January 2022 at 20:01:18 UTC, Johan wrote:
Tough to say. Of course DMD is not a serious contender, but I
believe the difference between GDC and LDC is very small and
really in the details, i.e. you'll have to look at assembly to
find out the delta.
Have you tried
On Tuesday, 25 January 2022 at 22:35:29 UTC, forkit wrote:
I should point out (to anyone looking at that code I posted),
that it's easier, and makes more sense, to just write:
writeln( ["typeA", "typeB", "typeC"].choice );
... but my main focus here, was learning about variadic template
On Tuesday, 25 January 2022 at 22:07:43 UTC, Ali Çehreli wrote:
thanks. makes it even shorter and simpler :-)
// --
module test;
@safe:
import std;
auto RandomChoice(R...)(R r)
{
auto rnd = MinstdRand0(unpredictableSeed);
return only(r).choice(rnd);
}
void main()
{
writeln(
On Tuesday, 25 January 2022 at 11:50:08 UTC, vit wrote:
thanks. problem solved (providing all parameters are of the same
type).
// ---
module test;
import std;
auto RandomChoice(R...)(R r)
{
auto rnd = MinstdRand0(unpredictableSeed);
return only(r).randomSample(1, rnd).front;
}
so I'm trying to write (or rather learn how to write) a 'variadic
template function', that returns just one of its variadic
parameter, randomly chosen.
But can't get my head around the problem here :-(
.. Error: template `std.random.randomSample` cannot deduce
function from argument types `
On Tuesday, 25 January 2022 at 02:12:50 UTC, H. S. Teoh wrote:
That's the *easy* way out?? Try this instead:
aaTable.keys.sort.each!((k) {
aaTable[k].keys.sort.each!((kk) {
writefln("%s:%s:%s", k, kk, aaTable[k][kk]);
});
On Tuesday, 25 January 2022 at 00:43:07 UTC, forkit wrote:
oh. thanks :-)
I will get that integrated into my example code, and will post
again, once it's working (so others can learn too)
ok.. so I took the easy way out ;-)
output is now ordered:
typeA:10003:[1, 1, 1, 0, 0, 0, 0, 0]
On Tuesday, 25 January 2022 at 00:39:05 UTC, H. S. Teoh wrote:
AA's are unordered containers. Do not rely on entries to appear
in any specific order when you traverse an AA; it is
implementation-dependent and may differ from OS to OS /
platform to platform / sequence of operations performed
On Tuesday, 25 January 2022 at 00:23:40 UTC, forkit wrote:
another example:
output is:
typeA:
10001:[0, 0, 1, 1, 1, 1, 1, 1]
10002:[0, 0, 0, 1, 1, 1, 1, 1]
typeB:
10005:[0, 0, 0, 0, 0, 0, 1, 1]
10003:[0, 0, 0, 0, 1, 1, 1, 1]
so I'm trying to understand why the output of the code below, is
in reverse order of the declaration (and how to fix it so that it
outputs in an ordered way)
i.e. output is:
typeA:
A2:A2value
A1:A1value
typeB:
B3:B3value
B2:B2value
B1:B1value
// --
On Sunday, 23 January 2022 at 22:08:28 UTC, Ali Çehreli wrote:
You use an asterisk and provide the width as an argument. This
one uses the length of the name of the program:
import std;
void main(string[] args)
{
int val = 999000;
writefln("[%*s]", args.front.length, val); // [
I would like to calculate the width of the format specifier
dynamically, at runtime.
e.g int WIDTH = something.length;
then my format specifier would be: %WIDTHs instead of %9s
// ---
module test;
import std;
void main()
{
int val = 999000;
writefln("[%9s]", val); // [ 999000]
}
On Saturday, 22 January 2022 at 19:55:43 UTC, Stanislav Blinov
wrote:
thanks for the explanation. That really helped :-)
writeln( generate!(() => dice(0.6, 1.4)).take(howManyTimes) );
[1, 1, 1, 1, 0]
(or after reading Ali's response - getting rid of rnd, and using
_ )
writeln(
On Saturday, 22 January 2022 at 22:44:31 UTC, forkit wrote:
and here is how to get the ip (depending on the formatting of
your output of course)
// ---
module test;
import std;
void main()
{
auto result = execute(["bash", "-c", "nmap -sn
192.168.11.0/24 | ack -B2 \"Philips\""]);
On Saturday, 22 January 2022 at 23:15:18 UTC, forkit wrote:
oh.. this is better i think...
ip = str[ ((lastIndexOf(str, "(")) + 1) .. lastIndexOf(str, ")")
];
On Saturday, 22 January 2022 at 20:55:38 UTC, Daren Scot Wilson
wrote:
is this helpful:
// ---
module test;
import std;
void main()
{
auto result = execute(["bash", "-c", "nmap -sn
192.168.11.0/24 | ack -B2 \"Phillips\""]);
if(canFind(result.to!string, "Host is up"))
trying to make sense of the below:
// ---
module test;
import std;
void main()
{
auto rnd = Random(unpredictableSeed);
int howManyTimes = 5;
// ok - using 'e =>' makes sense
writeln(howManyTimes.iota.map!(e => rnd.dice(0.6,
1.4)).format!"%(%s,%)");
// ok - though
On Saturday, 22 January 2022 at 01:33:16 UTC, Steven
Schveighoffer wrote:
That second `valuesPerRecord` is not used in the lambda, and
also it's not referring to the original element, it's the name
of a parameter in the lambda.
Are you sure this is doing what you want?
-Steve
It just
On Saturday, 22 January 2022 at 01:33:16 UTC, Steven
Schveighoffer wrote:
so I why watching this video by Andrei:
https://www.youtube.com/watch?v=mCrVYYlFTrA
In it, he talked about writing the simplest design that could
possibly work
Which got me thinking
//
module test;
On Friday, 21 January 2022 at 22:25:32 UTC, forkit wrote:
I really like how alias and mixin can simplify my code even
further:
//---
int[][int][] CreateDataSet
(const(int) recordsNeeded, const(int) valuesPerRecord)
{
int[][int][] records;
records.reserve(recordsNeeded);
const
On Friday, 21 January 2022 at 21:56:33 UTC, H. S. Teoh wrote:
What's the point of calling .dup here? The only reference to
records is going out of scope, so why can't you just return it?
The .dup is just creating extra work for nothing.
T
good pickup. thanks ;-)
//
module test;
On Friday, 21 January 2022 at 21:43:38 UTC, forkit wrote:
oops... should be:
// ---
int[][int][] CreateDataSet
(const(int) recordsNeeded, const(int)valuesPerRecord)
{
int[][int][] records;
records.reserve(recordsNeeded);
const int iotaStartNum = 100_000_001;
foreach(i, id;
On Friday, 21 January 2022 at 21:01:11 UTC, forkit wrote:
even better, I got rid of all those uncessary arrays ;-)
// ---
int[][int][] CreateDataSet
(const(int) recordsNeeded, const(int)valuesPerRecord)
{
int[][int][] records;
records.reserve(recordsNeeded);
foreach(i, id;
On Friday, 21 January 2022 at 18:50:46 UTC, Steven Schveighoffer
wrote:
Yeah, iota is a random-access range, so you can just pass it
directly, and not allocate anything.
Looking at the usage, it doesn't need to be an array at all.
But modifying the code to properly accept the range might
On Friday, 21 January 2022 at 18:36:42 UTC, H. S. Teoh wrote:
This is wasteful if you're not planning to use every ID in this
million-entry long array. Much better to just use an AA to
keep track of which IDs have already been generated instead.
Of course, if you plan to use most of the
On Friday, 21 January 2022 at 09:10:56 UTC, forkit wrote:
ok... in the interest of corecting the code I posted previously...
... here is a version that actually works in secs (for a million
records), as opposed to hours!
// ---
/+
On Friday, 21 January 2022 at 08:53:26 UTC, Stanislav Blinov
wrote:
turns out the problem has nothing to do with appender...
It's actually this line:
if (!idArray.canFind(x)):
when i comment this out in the function below, the program does
what I want in seconds.
only problem is, the
On Friday, 21 January 2022 at 04:08:33 UTC, forkit wrote:
// --
void ProcessRecords
(in int[][int][] recArray, const(string) fname)
{
auto file = File(fname, "w");
scope(exit) file.close;
Appender!string bigString = appender!string;
bigString.reserve(recArray.length);
On Friday, 21 January 2022 at 03:57:01 UTC, H. S. Teoh wrote:
std.array.appender is your friend.
T
:-)
// --
void ProcessRecords
(in int[][int][] recArray, const(string) fname)
{
auto file = File(fname, "w");
scope(exit) file.close;
Appender!string bigString = appender!string;
On Friday, 21 January 2022 at 03:45:08 UTC, forkit wrote:
On Friday, 21 January 2022 at 02:30:35 UTC, Ali Çehreli wrote:
The bigger question is, why did 'formattedRecords' exist at
all? You could have written the output directly to the file.
Oh. this was intentional, as I wanted to write
On Friday, 21 January 2022 at 02:30:35 UTC, Ali Çehreli wrote:
The bigger question is, why did 'formattedRecords' exist at
all? You could have written the output directly to the file.
Oh. this was intentional, as I wanted to write once, and only
once, to the file.
The consequence of that
On Friday, 21 January 2022 at 02:10:34 UTC, Steven Schveighoffer
wrote:
thanks Steven (and Ali too).
I have a line of code, that I do NOT want executed when -debug is
passed in.
enforce(!exists(fname), "Oop! That file already exists!");
Is this even possible? (with using -version ..)
On Friday, 21 January 2022 at 01:35:40 UTC, forkit wrote:
oops. nasty mistake to make ;-)
module test;
@safe
should be:
module test;
@safe:
On Thursday, 20 January 2022 at 23:49:59 UTC, Ali Çehreli wrote:
so here is final code, in idiomatic D, as far as I can tell ;-)
curious output when using -profile=gc
.. a line referring to:
std.array.Appender!(immutable(char)[]).Appender.Data
std.array.Appender!string.Appender.this
On Thursday, 20 January 2022 at 22:31:17 UTC, Steven
Schveighoffer wrote:
Because it would allow altering const data.
I'm not sure I understand. At what point in this function is
valuesArray modified, and thus preventing it being passed in with
const?
// ---
int[][int][] CreateDataSet
On Thursday, 20 January 2022 at 21:16:46 UTC, forkit wrote:
Cannot work out why I cannot pass valuesArray in as ref const??
get error: Error: cannot append type `const(int[])[const(int)]`
to type `int[][int][]`
// --
int[][int][] CreateDataSet(ref const int[] idArray, ref
On Thursday, 20 January 2022 at 12:40:09 UTC, Stanislav Blinov
wrote:
Allocating 4 megs to generate 10 numbers??? You can generate a
random number between 99900 and 10.
...
// id needs to be 9 digits, and needs to start with 999
x = uniform(999*10^^6, 10^^9);
On Thursday, 20 January 2022 at 10:11:10 UTC, bauss wrote:
Don't make them random then, but use an incrementor.
If you can have ids that aren't integers then you could use
uuids too.
https://dlang.org/phobos/std_uuid.html
The 'uniqueness' of id would actually be created in the database.
On Thursday, 20 January 2022 at 04:38:39 UTC, forkit wrote:
all done ;-)
// ---
module test;
import std.stdio : writeln;
import std.range : iota, isForwardRange, hasSlicing, hasLength,
isInfinite;
import std.array : array, Appender;
import std.random : Random, unpredictableSeed, dice,
On Thursday, 20 January 2022 at 04:00:59 UTC, forkit wrote:
void makeUniqueIDs(ref uint[] arr, size_t sz)
{
...
}
arrg!
what was i thinking! ;-)
// ---
void makeUniqueIDs(ref uint[] arr, size_t sz)
{
arr.reserve(sz);
// id needs to be 9 digits, and needs to start with 999
On Thursday, 20 January 2022 at 00:30:44 UTC, H. S. Teoh wrote:
Do the id's have to be unique?
yep...
I'm almost there ;-)
// ---
module test;
import std.stdio : writeln;
import std.range : iota, isForwardRange, hasSlicing, hasLength,
isInfinite;
import std.array : array, Appender;
On Wednesday, 19 January 2022 at 21:59:15 UTC, forkit wrote:
so at the moment i can get a set number of tuples, with a set
number of bool values contained within each tuple.
e.g.
createBoolMatrix(mArrBool,3, 2);
[[1, 0], [1, 1], [1, 0]]
my next challenge (more for myself, but happy for
On Wednesday, 19 January 2022 at 22:35:58 UTC, Ali Çehreli wrote:
so I combined ideas from all responses:
// --
module test;
import std.stdio : writeln;
import std.range : iota, isForwardRange, hasSlicing, hasLength,
isInfinite, array;
import std.random : Random, unpredictableSeed, dice;
On Wednesday, 19 January 2022 at 23:22:17 UTC, forkit wrote:
oops
// e.g: create a matrix consisting of 5 tuples, with each tuple
containing 3 random bools (0 or 1)
createBoolMatrix(mArrBool,5, 3);
On Wednesday, 19 January 2022 at 21:59:15 UTC, forkit wrote:
oh. that randomShuffle was unnecessary ;-)
so I have this code below, that creates an array of tuples.
but instead of hardcoding 5 tuples (or hardcoding any amount of
tuples),
what I really want to do is automate the creation of
how-ever-many tuples I ask for:
i.e.
instead of calling this: createBoolMatrix(mArrBool);
I would call
On Wednesday, 19 January 2022 at 03:00:49 UTC, Tejas wrote:
On Tuesday, 18 January 2022 at 20:43:08 UTC, forkit wrote:
On Tuesday, 18 January 2022 at 16:02:42 UTC, Tejas wrote:
Newer languages nowadays use `start..intent, think it's something we should follow?
I've decided to avoid using
On Tuesday, 18 January 2022 at 22:35:08 UTC, H. S. Teoh wrote:
On Tue, Jan 18, 2022 at 10:04:15PM +, forkit via
Digitalmars-d-learn wrote:
so I use this compile command (on Windows, using ldc)
-link-defaultlib-shared=true
Then (in simple example) the size of my compiled .exe:
From 806KB
On Tuesday, 18 January 2022 at 22:09:18 UTC, Adam D Ruppe wrote:
On Tuesday, 18 January 2022 at 22:04:15 UTC, forkit wrote:
so I use this compile command (on Windows, using ldc)
On Linux dmd can do `-defaultlib=libphobos2.so` for the same
thing.
On Windows, dmd cannot handle a shared
On Tuesday, 18 January 2022 at 20:50:06 UTC, Ali Çehreli wrote:
Needs a little more work to be correct. The following produces
and empty range. ;)
range(uint.min, uint.max)
Also, is it important for the result to be the same as T? For
example, even if T is ubyte, because b+1 is 'int',
so I use this compile command (on Windows, using ldc)
-link-defaultlib-shared=true
Then (in simple example) the size of my compiled .exe:
From 806KB down to 18KB
Oh. That's so much nicer on my SSD ;-)
(yes, I understand the implictions here of dynamic sharing, but I
test/compile/debug so
On Tuesday, 18 January 2022 at 16:02:42 UTC, Tejas wrote:
Newer languages nowadays use `start..intent, think it's something we should follow?
I've decided to avoid using number ranges 'directly', and instead
use a wrapper function...
auto range(T:T)(T a, T b)
{
import std.range :
On Monday, 17 January 2022 at 22:28:10 UTC, H. S. Teoh wrote:
If I ever needed to foreach over 1-based indices, I'd write it
this way in order to avoid all confusion:
foreach (i; 1 .. 5 + 1)
{
}
This will immediately make whoever reads the code (i.e., myself
after 2
On Monday, 17 January 2022 at 22:06:47 UTC, H. S. Teoh wrote:
Basically,
foreach (i; a .. b)
is equivalent to:
for (auto i = a; i < b; i++)
Just think of that way and it will make sense.
I think it's fair to say, that I'm familiar with 0-based indexing
;-)
my concern
On Monday, 17 January 2022 at 11:58:18 UTC, Paul Backus wrote:
This kind of half-open interval, which includes the lower bound
but excludes the upper bound, is used in programming because it
lets you write
foreach (i; 0 .. array.length) writef("%s ", array[i]);
...without going past
so I'm wondering why the code below prints:
1 2 3 4
and not
1 2 3 4 5
as I would expect.
foreach (value; 1..5) writef("%s ", value);
also, why is this not possible:
int[] arr = 1..5.array;
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