On Friday, 4 July 2014 at 16:28:48 UTC, Frustrated wrote:
On Friday, 4 July 2014 at 15:42:36 UTC, bearophile wrote:
Frustrated:
I'm not using 2.066 though...
I will revert back to the dmd version I was using when it
worked... Hopefully someone can make sure this is not a
regression in the
On Wednesday, 12 April 2017 at 22:56:25 UTC, solidstate1991 wrote:
I know the existence of those and I'm frequently using them,
however I need a two-way one. (Might be using two hash-tables
instead if I can't find a better solution)
So, you're looking for a generic way to store objects of
On Monday, 17 April 2017 at 10:02:22 UTC, Suliman wrote:
New question. Can I put result of filtering in itself without
creation of new variables like x:
auto x =
MySQLTablesRange.array.filter!(a=>a[0].coerce!string.canFind("_"));
No. filter is simply a wrapper around the source range, it
On Wednesday, 19 April 2017 at 14:36:13 UTC, Nick Treleaven wrote:
This bug is fixed as the code no longer segfaults but throws
instead:
https://issues.dlang.org/show_bug.cgi?id=5995
void main(){
string ret;
int i = -1;
ret ~= i;
}
Why is it legal to append an integer?
On Thursday, 20 April 2017 at 19:20:28 UTC, H. S. Teoh wrote:
Another pernicious thing I encountered recently, related to
implicit conversions, is this:
https://issues.dlang.org/show_bug.cgi?id=17336
It drew a very enunciated "WAT?!" from me.
Yeah, that one is annoying. I've dealt
On Wednesday, 19 April 2017 at 17:34:01 UTC, Jonathan M Davis
wrote:
Personally, I think that we should have taken the stricter
approach and not had integral types implicit convert to
character types, but from what I recall, Walter feels pretty
strongly about the conversion rules being the
On Wednesday, 19 April 2017 at 07:28:32 UTC, Suliman wrote:
1. You're measuring it wrong. Array length is already measured
in terms of type size.
So should I do:
cargpspoints.length * cargpspoints[0].sizeof ?
No. .sizeof is the statically known size of a type, it can't take
into account
On Wednesday, 19 April 2017 at 18:40:23 UTC, H. S. Teoh wrote:
A few extra keystrokes to type cast(int) or cast(char) ain't
gonna kill nobody. In fact, it might even save a few people by
preventing certain kinds of bugs.
Yup. Not to mention one could have
@property
auto
On Tuesday, 18 April 2017 at 15:07:27 UTC, WhatMeWorry wrote:
When I try to upload these files to my new repo, GitHub
(rightfully so) complains that
I have too many files. Since I'm using sdl and not json, can I
safely delete all the files
that pertain to json? Can I do this some way at the
On Tuesday, 18 April 2017 at 13:28:57 UTC, Suliman wrote:
Also I can't understand why app take so much memory? I checked
array of structures size with this code:
auto mymem = cargpspoints.length *
typeof(cargpspoints[0]).sizeof;
writeln(mymem);
And it's print: 16963440
it's about 16MB...
On Tuesday, 18 April 2017 at 14:09:28 UTC, Stanislav Blinov wrote:
foreach(row; result)
{
arr ~= row.toStruct(cargpspoint);
}
Sorry, this should be
foreach(row; result)
{
row.toStruct(cargpspoint);
arr ~= cargpspoint;
}
On Tuesday, 18 April 2017 at 13:28:06 UTC, Solomon E wrote:
I tried to produce an example of calling a function with
variadic template arguments using special tokens __FILE__ and
__LINE__.
This compiles and runs, producing the output shown, using the
default gdc
provided by Ubuntu 17.04.
On Sunday, 23 April 2017 at 20:34:12 UTC, Mike B Johnson wrote:
I'd like to get the symbolic name of the current function I'm in
void foo()
{
writeln(thisFunc.stringof()); // prints foo
}
I need something short, elegant and doesn't require modifying
preexisting code... I'm sure D has
On Sunday, 23 April 2017 at 20:33:48 UTC, Kevin Balbas wrote:
I guess the follow up here is: Is this the correct way to do
it?
cast to shared, send to main thread, cast away shared?
At the moment, pretty much yes. Either that or make the
(unnecessary) immutable copies.
There are no
On Monday, 17 April 2017 at 19:00:44 UTC, Jonathan M Davis wrote:
Because otherwise, it's not acting like a reference to the
original range, which is the whole point of RefRange. The
correct solution would probably be to @disable opAssign in the
case where the original range can't be
Would be prettier as a language feature, but still:
template test(alias pred)
{
import std.functional : unaryFun;
alias P = unaryFun!pred;
auto test(R)(R r)
{
struct Test
{
R v;
string toString()
{
import
On Thursday, 27 April 2017 at 06:40:49 UTC, Alex wrote:
Hi all,
a short question about an example.
having read this:
https://dlang.org/library/std/typecons/scoped.html
There is a struct B defined in the middle of the example, with
a scoped class member.
How to define an array of such members
On Thursday, 27 April 2017 at 15:47:38 UTC, Alex wrote:
struct S
{
@disable this();
@disable this(this);
this(size_t dummy){}
}
Given a struct with an explicit constructor and a postblit. How
to make an array of it?
You mean with a disabled default ctor and postblit?
On Thursday, 27 April 2017 at 17:07:05 UTC, Ali Çehreli wrote:
I haven't used it yet but it's worth noting that there is
EMSI's container library as well:
http://code.dlang.org/packages/emsi_containers
A brief glance at the source of dynamicarray there suggests that
it won't help with
On Thursday, 27 April 2017 at 18:36:08 UTC, Alex wrote:
* I'm pretty sure that the code is going to be invalid when
you're dealing with const/immutable data.
Ok... this is important... I tried this out, and the value of
the immutable data even remains the same. But for safety
reasons, I would
On Friday, 28 April 2017 at 20:43:50 UTC, Alex wrote:
Hi all,
I have a question about the Parameters trait from
https://dlang.org/phobos/std_traits.html#Parameters
The following code does not compile. Why?
Is it mainly assumed to use it with functions without overloads?
Rather, it is to be
On Saturday, 29 April 2017 at 06:18:34 UTC, Alex wrote:
The problem is another one: say I have something like this:
import std.traits;
struct A(alias T) if(isCallable!T)
{
auto opCall(U...)(U args) if(is(Parameters!T == U))
//if(__traits(compiles, T(args)))
{
On Thursday, 4 May 2017 at 03:59:36 UTC, Leonardo wrote:
On Thursday, 4 May 2017 at 02:45:30 UTC, Adam D. Ruppe wrote:
On Thursday, 4 May 2017 at 02:12:13 UTC, Leonardo wrote:
nullptr word. How I use this?
Does it work if you just use `null` ?
No.
First I got: source/app.d(45,69): Error:
On the point of "not possible...", "only a symbol...", etc:
T* ptrCast(T, alias ptr)() { return cast(T*)ptr; }
void addInt(void* state, void* data)
{
alias _state = ptrCast!(int, state);
alias _data = ptrCast!(int, data);
static assert(!is(typeof(_state) == int*));
static
On Sunday, 14 May 2017 at 21:55:01 UTC, ag0aep6g wrote:
On 05/14/2017 11:35 PM, Moritz Maxeiner wrote:
On Sunday, 14 May 2017 at 21:16:04 UTC, Stanislav Blinov wrote:
[...]
T* ptrCast(T, alias ptr)() { return cast(T*)ptr; }
[...]
alias _state = ptrCast!(int, state);
[...]
That's a
On Thursday, 11 May 2017 at 10:39:03 UTC, Andre Pany wrote:
Hi,
in this example, both asserts fails. Is my assumption right,
that UDA on alias have no effect? If yes, I would like to see a
compiler warning.
But anyway, I do not understand why the second assertion fails.
Are UDAs on arrays
On Wednesday, 10 May 2017 at 13:27:17 UTC, k-five wrote:
Thanks, but I know about what are you saying. The user_apply[4]
has so many possibilities and I cannot use if-else
That doesn't sound right. Either you've already handled all the
possible cases and thus expect the to! to not throw (can
On Tuesday, 9 May 2017 at 07:50:33 UTC, David Zhang wrote:
If indeed there is no way to avoid allocation, do the
allocations have to remain 'alive' for the duration of the
instance? Or can I deallocate immediately afterwards? I can't
seem to find it in the Vulkan spec.
2.3.1. Object
On Saturday, 13 May 2017 at 08:50:20 UTC, k-five wrote:
Way arguing when a simple code can clarify the subject? right?
If am not clear so consider me as an stupid man, no problem at
all.
but CAN you please solve it for me?
import std.stdio: writeln;
import std.conv:to;
void
On Saturday, 13 May 2017 at 18:32:16 UTC, Lewis wrote:
import std.random;
import std.stdio;
int[4] testfunc(int num) @nogc
{
return [0, 1, num, 3];
}
int main()
{
int[4] arr = testfunc(uniform(0, 15));
writeln(arr);
return 0;
}
I've read a bunch of stuff that seems to indicate
On Monday, 15 May 2017 at 21:38:52 UTC, Yuxuan Shui wrote:
Suppose I have a
struct A {
@disable this(this);
} x;
How do I append it into an array?
Do I have to do
array.length++;
moveEmplace(x, array[$-1]);
?
moveEmplace is for moving an initialized object into an
uninitialized one.
On Tuesday, 16 May 2017 at 01:22:49 UTC, Yuxuan Shui wrote:
Can I expand an array with uninitialized object? Or can I rely
on the compiler to optimize the initialization away?
Built-in arrays always default-initialize their elements. If you
need something that unsafe, there's
On Monday, 15 May 2017 at 06:50:04 UTC, Nicholas Wilson wrote:
On Monday, 15 May 2017 at 06:44:53 UTC, Nordlöw wrote:
Have anybody done this already?
Yes, https://maikklein.github.io/post/soa-d/
The code in that article is overly simplified. Concrete use cases
would require more than
On Tuesday, 9 May 2017 at 12:25:29 UTC, Nordlöw wrote:
On Tuesday, 9 May 2017 at 11:52:35 UTC, Nordlöw wrote:
I've tagged the ref-returning functions (in this case
`opSlice`) with `return scope` for my statically allocated
array struct at
Here's a simpler example
On Wednesday, 10 May 2017 at 15:35:24 UTC, k-five wrote:
On Wednesday, 10 May 2017 at 14:27:46 UTC, Stanislav Blinov
wrote:
On Wednesday, 10 May 2017 at 13:27:17 UTC, k-five wrote:
Thanks, but I know about what are you saying. The
user_apply[4] has so many possibilities and I cannot use
On Tuesday, 9 May 2017 at 14:08:48 UTC, bachmeier wrote:
On Tuesday, 9 May 2017 at 02:33:06 UTC, dummy wrote:
On Monday, 8 May 2017 at 12:29:27 UTC, bachmeier wrote:
On Monday, 8 May 2017 at 11:56:10 UTC, dummy wrote:
When i build some application with dub, i got this error:
I'm not a Dub
On Saturday, 20 May 2017 at 08:02:26 UTC, lixiaozi wrote:
so, what should i do to disable inlining of ldc2 in release
build?
As Stefan mentioned, a test case would be nice. But have you
tried annotating the offending function with pragma(inline,
false)?
On Saturday, 20 May 2017 at 10:48:54 UTC, Gary Willoughby wrote:
In the following code, the `_foo` pointer (of the Foo struct)
is null in the first call to the destructor. Why is this? I
think it's got something to do with the foreach loop but I'm
not sure. Any ideas?
Oof. Dangerous stuff.
On Monday, 22 May 2017 at 21:03:42 UTC, Bastiaan Veelo wrote:
`
void main()
{
import std.stdio;
struct S
{
int i;
union
{
int a;
double b;
}
}
S
On Tuesday, 23 May 2017 at 06:42:55 UTC, Timoses wrote:
The easiest way is probably casting:
```
import std.traits;
import std.bitmanip;
class Test {
byte[4] marray;
byte mbyte;
}
void main() {
auto value = [0x12, 0x23, 0x34, 0x45, 0x56];
auto test = cast(Test*) value.ptr;
}
On Tuesday, 23 May 2017 at 10:42:54 UTC, Nicholas Wilson wrote:
On Tuesday, 23 May 2017 at 10:30:56 UTC, Alex wrote:
On Monday, 22 May 2017 at 21:44:17 UTC, ag0aep6g wrote:
With that kind of variadics, you're not dealing with a
template. A (run-time) variadic delegate is an actual
delegate,
On Tuesday, 23 May 2017 at 16:48:31 UTC, Nordlöw wrote:
On Tuesday, 23 May 2017 at 16:46:18 UTC, Nordlöw wrote:
http://forum.dlang.org/post/wvulryummkqtskiwr...@forum.dlang.org
Correction; should be:
On Tuesday, 23 May 2017 at 11:45:13 UTC, Alex wrote:
On Tuesday, 23 May 2017 at 11:05:09 UTC, Stanislav Blinov wrote:
void variadic(Args...)(auto ref Args args) { /* ... */ }
This infers whether you pass lvalues or rvalues. If passing
further down the chain of such calls is needed, one can
On Friday, 26 May 2017 at 11:27:19 UTC, zakk wrote:
I have a followup question: my background is C and in Wolfram
Mathematica, so my knowledge of templates is limited to trivial
examples in C++, like:
template
const T& min(const T& lhs, const T& rhs)
{
return lhs < rhs ? lhs : rhs;
}
On Friday, 26 May 2017 at 09:59:26 UTC, zakk wrote:
Hello everyone,
I just started using D and I am a bit puzzled by the syntax of
the sort function is std.algorithm.sorting, which is
sort!(comparingFunction)(list)
where comparingFunction is often a lambda expression. For
instance in the
On Friday, 26 May 2017 at 18:06:42 UTC, Mike B Johnson wrote:
On Friday, 26 May 2017 at 14:05:34 UTC, ag0aep6g wrote:
On 05/26/2017 10:15 AM, realhet wrote:
But hey, the GC knows that is should not search for any
pointers in those large blocks.
And the buffer is full of 0-s at the start, so
On Friday, 26 May 2017 at 12:49:27 UTC, Oleksii wrote:
Hi,
I'm trying to link against a DLL which exports a bunch of C
functions. The issue is: C symbols do not have underscore
prefix in Windows, but DMD sticks underscore in front of the
symbol name. For example: `extern(C) void Foo()`
On Sunday, 21 May 2017 at 12:48:10 UTC, Adam D. Ruppe wrote:
On Saturday, 20 May 2017 at 10:48:54 UTC, Gary Willoughby wrote:
// Why is this._foo null here???
The others have answered why and what to do, but note that
according to the spec, that any struct should be able to
On Sunday, 21 May 2017 at 15:13:55 UTC, bastien penavayre wrote:
I've been trying to translate the following idea expressed here
in c++:
template
void func(Arguments... args) {}
so I tried
void func(UserArgs..., Arguments...)(Arguments args) {}
and then
void func(Args...)(Filter!(isType,
On Saturday, 27 May 2017 at 19:23:59 UTC, Igor Shirkalin wrote:
Hi,
I try to make a class template with single template argument
defaulted to some type.
Is it possible to use the name of class without specification
of template argumet (no '!' operator)?
Example:
class ClassName(T=double) {
On Saturday, 27 May 2017 at 17:57:03 UTC, Mike B Johnson wrote:
And what if one isn't interfacing to C? All pointers should be
known. You can't access memory by and int or any other
non-pointer type! Hence, when pointers are created or ints are
cast to pointers, the GC should be informed and
On Monday, 29 May 2017 at 23:39:17 UTC, Russel Winder wrote:
C++ allows one to create types that are pointer types but wrap
a primitive pointer to give RAII handling of resources. For
example:
class Dvb::FrontendParameters_Ptr {
private:
dvb_v5_fe_parms * ptr;
public:
On Tuesday, 30 May 2017 at 23:41:01 UTC, H. S. Teoh wrote:
This little challenge piqued my interest. So I decided to take
a shot at seeing if I could beat my system's /usr/bin/wc -l.
First order of business: whenever it comes to performance,
always choose the right compiler for the job...
On Saturday, 3 June 2017 at 08:01:14 UTC, Jonathan M Davis wrote:
On Saturday, June 03, 2017 06:41:44 Stanislav Blinov via
Digitalmars-d-learn wrote:
On Saturday, 3 June 2017 at 06:19:29 UTC, Jonathan M Davis
wrote:
> looking at what rt_finalize does, I don't see why it
> couldn't be n
On Saturday, 3 June 2017 at 06:19:29 UTC, Jonathan M Davis wrote:
looking at what rt_finalize does, I don't see why it couldn't
be nothrow. So, unless I'm missing something, it seems like
that would be a good enhancement.
- Jonathan M Davis
Presently, rt_finalize cannot be made nothrow, or
On Saturday, 3 June 2017 at 23:36:18 UTC, Mike B Johnson wrote:
https://dlang.org/phobos/std_utf.html#toUTF16z
This didn't work. More errors than the first.
Works for me:
void main()
{
import std.conv;
import std.stdio;
import core.stdc.wchar_;
import core.stdc.stdio;
On Saturday, 3 June 2017 at 19:55:30 UTC, ag0aep6g wrote:
On 06/03/2017 09:37 PM, Moritz Maxeiner wrote:
Of course, but AFAIK you'd need to explicitly assign it to an
object, so `ptr` won't null by accident, but only by explicit
programmer intent (same as overwriting the memory the object
On Saturday, 3 June 2017 at 21:39:54 UTC, Moritz Maxeiner wrote:
On Saturday, 3 June 2017 at 21:16:08 UTC, Stanislav Blinov
wrote:
On Saturday, 3 June 2017 at 20:53:05 UTC, Moritz Maxeiner
wrote:
Quite, but if you backtrack to my initial statement, it was
about ptr not being/becoming null
On Saturday, 3 June 2017 at 22:54:22 UTC, Mike B Johnson wrote:
How to convert a string to wchar*?
C-style null-terminated wchar*?
https://dlang.org/phobos/std_utf.html#toUTF16z
On Saturday, 3 June 2017 at 20:53:05 UTC, Moritz Maxeiner wrote:
On Saturday, 3 June 2017 at 20:25:22 UTC, Stanislav Blinov
wrote:
On Saturday, 3 June 2017 at 20:13:30 UTC, Moritz Maxeiner
wrote:
Calling std.algorithm.move is explicit programmer intent, I
consider that about as accidental as
On Saturday, 3 June 2017 at 22:38:31 UTC, Mark wrote:
In the future I'll include a compilable example. I was having
problems with a class I made which is about 45 lines, that
might be a lot of code for a post.
You can use external resources such as:
https://d.godbolt.org/
On Sunday, 4 June 2017 at 09:04:14 UTC, Jonathan M Davis wrote:
if throwing in a destructor is considered a runtime error,
perhaps another valid enhancement would be to statically
disallow throwing Exceptions in destructors, i.e. *require*
them be nothrow?..
My initial reaction would be
On Thursday, 8 June 2017 at 01:57:47 UTC, Andrew Edwards wrote:
Ranges may be finite or infinite but, while the destination may
be unreachable, we can definitely tell how far we've traveled.
So why doesn't this work?
import std.traits;
import std.range;
void main()
{
string[string] aa;
On Thursday, 8 June 2017 at 02:25:17 UTC, Jonathan M Davis wrote:
Oh I see, the was error related to iteration, not sorting.
Ranges do not support iterating with an index. The workaround
if you want to have an index with ranges and foreach, then you
should use lockstep:
On Thursday, 1 June 2017 at 12:04:05 UTC, Daniel Tan Fook Hao
wrote:
Somehow this code works for me:
```D
auto error (int status, string description){
struct Error {
int status;
string description;
}
Error err = {
status,
description
};
return
On Thursday, 8 June 2017 at 04:07:22 UTC, Andrew Edwards wrote:
On Thursday, 8 June 2017 at 03:40:08 UTC, Jonathan M Davis
sort() returns a SortedRange so that other algorithms can
know...
Yes, I understand that. Again, using "std.range: release" earns
me nothing more than I already get
On Saturday, 3 June 2017 at 20:13:30 UTC, Moritz Maxeiner wrote:
Calling std.algorithm.move is explicit programmer intent, I
consider that about as accidental as calling memcpy with a
source full of zeroes.
In any case, having that check in the destructor is fairly
cheap, so better safe than
On Sunday, 11 June 2017 at 05:36:08 UTC, helxi wrote:
I was writing a program that reads and prints the first nth
lines to the stdout:
import std.stdio;
void main(string[] args)
{
import std.algorithm, std.range;
import std.conv;
stdin.byLine.take(args[1].to!ulong).each!writeln;
}
On Sunday, 7 May 2017 at 10:33:25 UTC, k-five wrote:
On Sunday, 7 May 2017 at 09:46:22 UTC, Patrick Schluter wrote:
On Saturday, 6 May 2017 at 10:15:03 UTC, k-five wrote:
If you want to learn the basis of the range concept and their
link to C++ Iterators, you should definitively read
On Wednesday, 3 May 2017 at 10:55:44 UTC, I Lindström wrote:
So, a question from a beginner. What is the .obj file that
appears after the source is compiled into the executable? I
can't find a good explanation on the Net for it. I take it the
file has to accompany the executable for the
On Friday, 5 May 2017 at 09:54:03 UTC, k-five wrote:
Hi all.
I have a simple command-line program utility in C++ that can
rename or remove files, based on regular expression.
After finding D that is more fun than C++ is, I want to port
the code, but I have problem with this part of it:
On Saturday, 6 May 2017 at 10:15:03 UTC, k-five wrote:
On Saturday, 6 May 2017 at 08:53:12 UTC, Jonathan M Davis wrote:
On Saturday, May 6, 2017 8:34:11 AM CEST k-five via
Digitalmars-d-learn wrote:
On Friday, 5 May 2017 at 17:07:25 UTC, Stanislav Blinov wrote:
> On Friday, 5 May 2017 at
On Saturday, 6 May 2017 at 08:34:11 UTC, k-five wrote:
Also what is the parameter "a.empty" for template filter
Jonathan covered the type part. As for that last bit, the filter
template takes a predicate as parameter. This predicate is called
for each input element, and if returns false,
On Saturday, 6 May 2017 at 21:40:24 UTC, Mike B Johnson wrote:
I'd like to get the value assign to a field at CT.
struct
{
int x = 3434;
}
I'd like to get the assigned "value" 3434 for x at CT.
Use the .init property:
struct S
{
int x = 3434;
}
unittest
{
static
In the meantime, you can get around the issue by redeclaring the
function with another name and loading it manually just after
calling DerelictSDL2.load():
import derelict.sdl2.sdl;
__gshared SDL_bool function (const(SDL_Point)*, int,
const(SDL_Rect)*, SDL_Rect*) SDL_EnclosePoints_;
void
On Thursday, 25 May 2017 at 15:41:47 UTC, crimaniak wrote:
It seems to me that examples on the site require additional
work and in the current form are counterproductive in terms of
attracting new users.
https://github.com/dlang/phobos
On Thursday, 25 May 2017 at 18:13:15 UTC, Anonymouse wrote:
Part of the strings I'm working with can be assumed to be only
ASCII, yes. indexOf only wants strings or char[]s, but
interestingly if I use the same benchmark but have countUntil
work on raw ubyte[]s, it is faster. See
On Sunday, 21 May 2017 at 23:59:08 UTC, Guillaume Piolat wrote:
On Sunday, 21 May 2017 at 12:48:10 UTC, Adam D. Ruppe wrote:
Any struct should be able to have its destructor called
Does this rule also applies to class objects?
Yes. If your destructor does modify the state, you should expect
On Monday, 22 May 2017 at 00:23:26 UTC, Adam D. Ruppe wrote:
On Sunday, 21 May 2017 at 14:13:20 UTC, Stanislav Blinov wrote:
Not if you either emplace() or blit Foo.init into all of the
array elements.
You especially need to be safe calling ~this on Foo.init.
How so? .init is supposed to be
On Monday, 22 May 2017 at 00:45:27 UTC, Adam D. Ruppe wrote:
On Monday, 22 May 2017 at 00:36:24 UTC, Stanislav Blinov wrote:
I can't think of any case where you'd want preconditions on
destructor when the object is in .init state.
I think we're actually saying the same thing: I mean the
On Monday, 8 October 2018 at 11:19:40 UTC, Per Nordlöw wrote:
And how this is related to the trait `hasElaborateConstructor`
for both `classes` and `structs`.
There's no such trait as far as I'm aware. If there were, it'd
likely be checking for the presence of a '__ctor' member. Thing
is, it
On Friday, 12 October 2018 at 07:32:26 UTC, Mike Parker wrote:
DMD has the -i option which tells the compiler to automatically
compile all imported modules. I don't know if LDC has anything
similar.
It does, same option.
On Saturday, 13 October 2018 at 11:11:41 UTC, Codifies wrote:
Does anyone has any ideas on improving this sortable list
Yes. Use an array. No, really, use an array. Now, really, use an
array.
If reallocations while building your paths become a problem, you
can write a deque (bucket array)
On Friday, 19 October 2018 at 02:04:37 UTC, Samir wrote:
I am working my way through the exercises in the "Programming
in D" tutorial (http://ddili.org/ders/d.en/arrays.html). Why
is the line assigning the length of the dynamic array required?
[...]
Without the line:
myArray.length =
On Monday, 22 October 2018 at 11:42:59 UTC, test wrote:
some how when I call "is(typeof(__traits(getMember, BaseType,
name))) " in the template, my code report others error like:
Error: no property fromPointer for type void
Error: template instance TypeTemplate!(BaseType) is used as a
type
On Monday, 22 October 2018 at 10:16:22 UTC, test wrote:
I try use traits get all public static function of a struct
pass to template...
how to do this ?
void allFunctions(T)() {
import std.stdio;
foreach (name; __traits(allMembers, T)) {
static foreach (overload;
On Monday, 22 October 2018 at 10:49:10 UTC, test wrote:
test1.d
=
alias Fn1 = void function();
struct XX {
alias Fn= Fn1;
// ...
}
'Fn' is not a static function, it's a type. I.e. you can declare
a function pointer with it:
Fn func;
On Monday, 22 October 2018 at 12:03:22 UTC, test wrote:
On Monday, 22 October 2018 at 11:59:21 UTC, test wrote:
On Monday, 22 October 2018 at 11:42:59 UTC, test wrote:
I try made a simple example but it has no error:
I find the way to show the error:
https://run.dlang.io/is/f8cULz
import
On Friday, 19 October 2018 at 17:40:59 UTC, Carl Sturtivant wrote:
If we imagine an Ordered Range being a finite Range of some
kind with the additional property that its values are ordered
(--- exact definition needed ---)...
There's already a SortedRange:
On Wednesday, 17 October 2018 at 20:53:02 UTC, Vijay Nayar wrote:
This particular use of "scope" I overheard at the last DConf,
and I believe it has been added to the official documentation
here: https://dlang.org/spec/expression.html#new_expressions
If a NewExpression is used as an
On Wednesday, 17 October 2018 at 22:30:31 UTC, Jordan Wilson
wrote:
Ideally, I'd check args before I take the time to load up data.
https://dlang.org/phobos/core_runtime.html#.Runtime
On Wednesday, 17 October 2018 at 20:24:56 UTC, Vijay Nayar wrote:
I have a snippet of code like this:
scope chordAngle = new S1ChordAngle(_center, other._center);
return _radius + other._radius >= chordAngle;
The reason the "scope" temporary variable exists is to avoid a
heap
On Wednesday, 17 October 2018 at 02:54:26 UTC, test wrote:
I need get the Route UDA only for method without (static
methods, property, constructor, destructor), dont know how to
do it.
1) Note that __traits(allMembers, T) gets you a tuple of names,
not actual member aliases.
2) Remember
On Thursday, 18 October 2018 at 10:50:18 UTC, Paolo Invernizzi
wrote:
There's a rational behind the fact that there's not a 'shared'
version of notify/wait method in Condition?
They were implemented before complete `shared` spec existed,
which is any time between it's conception and now.
On Wednesday, 17 October 2018 at 09:53:22 UTC, Dukc wrote:
Whatever iterates through the range could then throw an
appopriate exception when it encounters an error token.
Exceptions in a parser? Monsieur knows his perversion.
On Tuesday, 16 October 2018 at 09:38:44 UTC, John Burton wrote:
The information I have found indicates that it runs to free
memory when the system runs out of memory to allocate.
No, that is incorrect. By default, here's what's happening:
1) At startup (or first 'new' or GC.malloc) the GC
On Wednesday, 17 October 2018 at 13:48:04 UTC, FrankLike wrote:
What can I do?
Delete the bloatware that you downloaded.
On Monday, 29 October 2018 at 00:01:21 UTC, DanielG wrote:
In my D app I'm declaring it this way:
extern (C) {
extern __gshared int myIntValue;
int myIntFunc (int a, int b);
}
The function seems to link OK, but the C global will not.
Should it be extern(Windows),
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:
```
bool opEquals(Object);
```
the compiler rewrites `a == b` as
On Wednesday, 31 October 2018 at 12:13:57 UTC, Codifies wrote:
On Wednesday, 31 October 2018 at 12:09:04 UTC, Stanislav Blinov
wrote:
```
void printValue(Args...)(Font fnt, float x, float y, string
frmt, auto ref Args args) {
// ...
import std.functional : forward;
string
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