Re: Why I can't catch the exception?
On Sunday, 5 June 2016 at 18:20:12 UTC, Era Scarecrow wrote: The assertion is being thrown in the storage.d and backtracking it basically points to line 115 (usersCollection), so am going to guess based on error messages alone that you are passing a struct/class that doesn't match inputs that it is expecting for one of the elements it needs to store. So my advice is to look at the User struct/class, and then look at the DB's User table. But this is just a far thrown guess at the problem. You are very close. This is just a limitation of the current database code which can only handle the simplest structs. https://gitlab.com/PiotrekDlang/DraftLib/issues/4 Piotrek
Re: Will D have a standard cross platform GUI toolkit?
On Thursday, 26 February 2015 at 18:20:12 UTC, Rinzler wrote: Hello, I was wondering if D will have a standard cross platform GUI toolkit. I think that any modern language should provide a cross-platform GUI toolkit. I know that there are some GUI toolkits, but are there cross-platform? Are there serious works? That is, will them always be supported and evolve along with the D programming language? I think that having bindings of a GUI toolkit for a programming languages can be useful, but they have to be well supported. Will QT support D programming language? I really love the Qt framework (except from the fact it's not open source, as far as I know), even though I have not used it a lot. I have to admit that I love D, even if I did not start programming with it. It seems it combines the most useful things of C++ and Java, which are my favourite programming languages. Maybe there are other questions already in the forum, since I am new, I don't know, but a new question, more up to date, can also be useful. Thanks! Hi, There were several discussions about the std gui in the past. And the current state is not so bad. There are some big contributions in the gui domain. However the complexity of the topic is so hi that there is no *standard* gui for D for the time being. However I've been trying to start with the concept of DIP73 http://wiki.dlang.org/DIP73 (I'm the submitter and the only executor ;) with the hope that there is a chance. Currently I'm choosing some example ideas of new modules (including database and gui especially). Piotrek
Re: Problem with creating a new account on wiki.dlang.org
On Wednesday, 4 February 2015 at 07:02:01 UTC, Zach the Mystic wrote: Vladimir fixed it. Yay! That was quick action. Thank you both Zach and Vladimir. Piotrek
Problem with creating a new account on wiki.dlang.org
Hi, I wanted to create my account at wiki.dlang.org: Went to: http://wiki.dlang.org/?title=Special:UserLoginreturnto=Wish+listtype=signup And got: No questions found; set some in LocalSettings.php using the format from QuestyCaptcha.php. Anyone familiar with the issue? Piotrek
Re: static class vs. static struct
On Tuesday, 27 January 2015 at 18:24:29 UTC, Ali Çehreli wrote: On 01/27/2015 08:33 AM, Piotrek wrote: Non-static means nested. Hmm,this can be misleading. Nesting in structs doesn't introduce context pointer. You must be thinking of structs nested inside user-defined types. Structs that are nested inside functions do have the context pointer. Ali What you wrote about the structs is true. However I was referring to other thing. I just wanted to emphasize (with my poor English) that also classes and structs *nested in struct* doesn't contain the additional context pointer. As opposed to class nested in class. Then I think we'd better not say that non-static means nested. Piotrek
Re: static class vs. static struct
On Tuesday, 27 January 2015 at 18:18:02 UTC, Ali Çehreli wrote:
On 01/27/2015 08:58 AM, Piotrek wrote:
Nice list. :)
1. static variable
struct A{int a} // no static before declaration
static A s; //note that static is used for struct variable
storage class
(lifetime)
static int b;
etc.
2. static declaration
static struct A{int a}; //static used for context unnesting
static int fun(){}; // static used also for removing scope
context
Of course that includes static member functions, where the
'this' pointer is removed.
Actually, static opCall is kind of different because it makes
the type itself callable.
etc.
3. static if
static if(compile_time_cond)
{
//this section of code will be taken into the binary, used
for meta
programming
}
Another use of 'static' that means at compile time:
static assert
4. Module initialization and deinitialization:
static this
shared static this
static ~this
shared static ~this
5. Module import:
static import std.stdio;
Ali
Thanks for comments, Mr. Professor. On duty as usual ;)
Let me here thank for your book which I've been reading for some
time.
Piotrek
Re: static class vs. static struct
On Tuesday, 27 January 2015 at 09:01:39 UTC, ref2401 wrote:
For several times I've met struct(or static struct) usage in
Phobos for singleton pattern implementation. Unfortunately now
i can remember only core.runtime.Runtime.
So I've got a question. Why do Phobos guys use struct or static
struct for or singleton pattern implementation? Why don't use
static final class for this purpose?
You probably saw static member function.
Please take the following with a big grain of salt as I took it
out of my head:
We can divide the D static keyword usage into 3 types:
1. static variable
struct A{int a} // no static before declaration
static A s; //note that static is used for struct variable
storage class (lifetime)
static int b;
etc.
2. static declaration
static struct A{int a}; //static used for context unnesting
static int fun(){}; // static used also for removing scope context
etc.
3. static if
static if(compile_time_cond)
{
//this section of code will be taken into the binary, used for
meta programming
}
I don't think there is much (if any) use of static (type 1) for
singleton.
Piotrek
Re: static class vs. static struct
On Monday, 26 January 2015 at 21:55:19 UTC, anonymous wrote: On Monday, 26 January 2015 at 21:33:10 UTC, Piotrek wrote: On Monday, 26 January 2015 at 14:11:32 UTC, bearophile wrote: Non-static structs/classes have an extra pointer. Bye, bearophile Since when structs have an extra pointer? Maybe you are talking about nested structs? Non-static means nested. Hmm,this can be misleading. Nesting in structs doesn't introduce context pointer. But I agree that if we take into account a hypothetical inferred static attribute for nesting in struct and the module scope cases, then the static and non-static classification looks the most suitable. Piotrek
Re: static class vs. static struct
On Monday, 26 January 2015 at 14:11:32 UTC, bearophile wrote: Non-static structs/classes have an extra pointer. Bye, bearophile Since when structs have an extra pointer? Maybe you are talking about nested structs? Piotrek
