Re: Cannot dup an associative array but why?

2017-07-10 Thread Ali Çehreli via Digitalmars-d-learn
On 07/10/2017 11:46 AM, Jean-Louis Leroy wrote: > Is there something special about ClassInfo that confuses? Look at this > example: > > struct Foo > { > > } > > class Bar > { > } > > void main() > { > Foo*[Bar] a; > auto aa = a.dup; // OK > Foo*[ClassInfo] b; // Error: static assert

Re: Cannot dup an associative array but why?

2017-07-10 Thread Jean-Louis Leroy via Digitalmars-d-learn
On Monday, 10 July 2017 at 19:11:37 UTC, Ali Çehreli wrote: On 07/10/2017 11:46 AM, Jean-Louis Leroy wrote: > Is there something special about ClassInfo that confuses? Look at this > example: > > struct Foo > { > > } > > class Bar > { > } > > void main() > { > Foo*[Bar] a; > auto aa = a.dup;

Re: Application settings

2017-07-10 Thread Jacob Carlborg via Digitalmars-d-learn
On 2017-07-07 21:40, FoxyBrown wrote: What's the "best" way to do this? I want something I can simply load at startup in a convenient and easy way then save when necessary(possibly be efficient at it, but probably doesn't matter). Simply json an array and save and load it, or is there a

Re: Fiber based UI-Toolkit

2017-07-10 Thread Jacob Carlborg via Digitalmars-d-learn
On 2017-07-09 21:43, Christian Köstlin wrote: I wonder if there is any fiber based / fiber compatible UI-Toolkit out for dlang. The second question is, if it would make sense at all to have such a thing? If I recall correctly, vibe.d has some form of integration with the native GUI event loop

Re: Fiber based UI-Toolkit

2017-07-10 Thread Jacob Carlborg via Digitalmars-d-learn
On 2017-07-09 23:12, bauss wrote: I believe OSX (possibly macOS too.) only allows it from the main thread. Yes, that's correct. But what's the difference between OSX and macOS ;) -- /Jacob Carlborg

Re: pure factory function vs immutable(Foo)**

2017-07-10 Thread ag0aep6g via Digitalmars-d-learn
On 07/10/2017 05:42 PM, drug wrote: 10.07.2017 17:57, ag0aep6g пишет: [...] The error message is: "cannot implicitly convert expression (f(& p)) of type immutable(int)** to immutable(int**)". [...] I'm not sure I understand, but ``` immutable (T)** r = f(); ``` compiles. So compiler

Re: CTFE output is kind of weired

2017-07-10 Thread H. S. Teoh via Digitalmars-d-learn
On Sun, Jul 09, 2017 at 06:48:30AM +, Stefan Koch via Digitalmars-d-learn wrote: > On Sunday, 9 July 2017 at 04:03:09 UTC, H. S. Teoh wrote: [...] > > Stefan Koch allegedly will add a ctfeWriteln to his new CTFE engine > > that should alleviate this limitation. > > > > > > T > > In fact

Re: iterate over variadic

2017-07-10 Thread ag0aep6g via Digitalmars-d-learn
On 07/10/2017 08:31 PM, H. S. Teoh via Digitalmars-d-learn wrote: if (i % 2) { // even odd ... // do something with arg } else { // odd even

Cannot dup an associative array but why?

2017-07-10 Thread Jean-Louis Leroy via Digitalmars-d-learn
Is there something special about ClassInfo that confuses? Look at this example: struct Foo { } class Bar { } void main() { Foo*[Bar] a; auto aa = a.dup; // OK Foo*[ClassInfo] b; // Error: static assert "cannot call Foo*[TypeInfo_Class].dup because Foo* is not copyable" auto bb =

Why no offsetof for static struct?

2017-07-10 Thread FoxyBrown via Digitalmars-d-learn
Cannot get the offset of static members of a struct struct X { __gshared public: int x; } X.x.offsetof < invalid. We can clearly get a pointer to the static struct X since is effectively the address of X(regardless nomenclature and terminology issues in D trying to hide this).

Foreign threads in D code.

2017-07-10 Thread Igor Shirkalin via Digitalmars-d-learn
Hello! I have written some D code that I need to link to :C++ huge project. Let it be just one function that uses GC. The question is: if C++ code creates several threads and runs this :D function simultaneously, will GC work correctly? p.s. Of course the druntime is initialized before it.

Re: iterate over variadic

2017-07-10 Thread H. S. Teoh via Digitalmars-d-learn
On Sun, Jul 09, 2017 at 10:21:59PM +, FoxyBrown via Digitalmars-d-learn wrote: > How can we iterate over a variadic and have it's index. I'll do > different things depend on if it's an even or odd index, but seems to > be no way to get it. Easy: auto func(Args...)(Args args) {

Re: problem overloading functions with complex enum type

2017-07-10 Thread Lamex via Digitalmars-d-learn
On Saturday, 8 July 2017 at 15:23:10 UTC, Eric wrote: import std.stdio; check check one two

Re: problem overloading functions with complex enum type

2017-07-10 Thread Ali Çehreli via Digitalmars-d-learn
On 07/08/2017 08:23 AM, Eric wrote: > enum AS : string[2] { a = ["1","2"], b = ["3","4"] }; > enum BS : string[2] { a = ["5","6"], b = ["7","8"] }; > > void funcs(AS a) { writeln("AS"); } > void funcs(BS b) { writeln("BS"); } > funcs(AS.a); // compiler error: matches both funcs(AS) and

Re: Get a string of a function name from a function pointer?

2017-07-10 Thread Ali Çehreli via Digitalmars-d-learn
On 07/10/2017 05:26 AM, SauceKode wrote: > I need to pass a group of (C) function pointers to another language from > D... is there a way to derrive a name from a function pointer? Or do I > have to manually list out the names? libunwind should be able to provide that functionality. Otherwise,

Re: pure factory function vs immutable(Foo)**

2017-07-10 Thread drug via Digitalmars-d-learn
10.07.2017 17:57, ag0aep6g пишет: I feel like I must be missing something here. This works: alias T = int; T** f(const T** input) pure { T** output; return output; } void main() { T i; T* p = immutable T** r = f(); } `f` is `pure`, its parameter is const, and

Re: Is runtime info in shared memory?

2017-07-10 Thread Ali Çehreli via Digitalmars-d-learn
On 07/09/2017 02:38 AM, Jean-Louis Leroy wrote: When I look at ldc2's object.d I have the impression it's thread local. I may be wrong though, just beginning to learn about 'shared'. Unless it's marked as shared or __gshared it's thread-local by default. Ali

Re: Fiber based UI-Toolkit

2017-07-10 Thread Christian Köstlin via Digitalmars-d-learn
On 10.07.17 00:23, Christian Köstlin wrote: To elaborate on the previous post, I uploaded a small example, that tries naively to mix dlangui with fibers. Please have a look at: https://github.com/gizmomogwai/fibered-ui.git For sure it does not work. The fiber in the callback is started, but after

Re: Fiber based UI-Toolkit

2017-07-10 Thread bauss via Digitalmars-d-learn
On Monday, 10 July 2017 at 08:40:15 UTC, Jacob Carlborg wrote: On 2017-07-09 23:12, bauss wrote: I believe OSX (possibly macOS too.) only allows it from the main thread. Yes, that's correct. But what's the difference between OSX and macOS ;) Well besides that it's newer versions of the

Re: Why no offsetof for static struct?

2017-07-10 Thread Mike Parker via Digitalmars-d-learn
On 7/11/2017 6:14 AM, FoxyBrown wrote: On Monday, 10 July 2017 at 20:13:46 UTC, Adam D. Ruppe wrote: No, it isn't. Static members are stored in an entirely different place than non-static members. They are really just global variables in memory with their in-source name being nested

stacktrace for InvalidMemoryOperationError

2017-07-10 Thread crimaniak via Digitalmars-d-learn
Hi! I have vibe.d application and long-standing error in it. For the current moment, I have logs for stdout, stderr, and additional log to write exceptions I catch. This error gives me only the short line in stderr log: core.exception.InvalidMemoryOperationError@src/core/exception.d(696):

Re: Fiber based UI-Toolkit

2017-07-10 Thread Gerald via Digitalmars-d-learn
On Monday, 10 July 2017 at 14:03:59 UTC, Jacob Carlborg wrote: On 2017-07-10 15:37, Gerald wrote: Having said that, I'm in the camp where this doesn't make much sense. Using fibers on the main UI thread is likely going to result in a blocked UI whenever a fiber takes too long to do its work.

Re: Debugging D applications from VS code with webfreak.debug

2017-07-10 Thread Domain via Digitalmars-d-learn
On Friday, 24 February 2017 at 13:19:53 UTC, FR wrote: On Friday, 24 February 2017 at 03:15:11 UTC, Jerry wrote: You can use the C++ plugin, which provides a debugger. Just make sure you aren't using optlink, I don't think it generates compatible files. Also you might need to use "-gc" which

Re: Having a strange issue with std.net.curl.HTTP as a struct dependency

2017-07-10 Thread ketmar via Digitalmars-d-learn
NoBigDeal256 wrote: I'm currently learning D and started working on one of my first projects which is an API wrapper. I'm currently having an issue with my program getting a InvalidMemoryOperationError upon exiting the process on Windows 7. On my Debian VM I get a segmentation fault. known

Re: Having a strange issue with std.net.curl.HTTP as a struct dependency

2017-07-10 Thread NoBigDeal256 via Digitalmars-d-learn
On Monday, 10 July 2017 at 20:31:12 UTC, ketmar wrote: NoBigDeal256 wrote: I'm currently learning D and started working on one of my first projects which is an API wrapper. I'm currently having an issue with my program getting a InvalidMemoryOperationError upon exiting the process on Windows

Why no offsetof for static struct?

2017-07-10 Thread FoxyBrown via Digitalmars-d-learn
Cannot get the offset of static members of a struct struct X { __gshared public: int x; } X.x.offsetof < invalid. We can clearly get a pointer to the static struct X since is effectively the address of X(regardless nomenclature and terminology issues in D trying to hide this).

Re: Why no offsetof for static struct?

2017-07-10 Thread FoxyBrown via Digitalmars-d-learn
On Monday, 10 July 2017 at 20:13:46 UTC, Adam D. Ruppe wrote: On Monday, 10 July 2017 at 20:01:39 UTC, FoxyBrown wrote: Cannot get the offset of static members of a struct That's because static members do not have an offset. They are not part of the struct in memory, just in name. We can

Re: Having a strange issue with std.net.curl.HTTP as a struct dependency

2017-07-10 Thread ketmar via Digitalmars-d-learn
NoBigDeal256 wrote: Do you happen to have a link to the bug report for this specific issue that I could look at? I looked at the known bugs list and couldn't find anything related to this. nope. it is a kind of "known bug nobody bothered to report". ;-)

Re: Why no offsetof for static struct?

2017-07-10 Thread Adam D. Ruppe via Digitalmars-d-learn
On Monday, 10 July 2017 at 20:01:39 UTC, FoxyBrown wrote: Cannot get the offset of static members of a struct That's because static members do not have an offset. They are not part of the struct in memory, just in name. We can clearly get a pointer to the static struct X There's barely

Re: Having a strange issue with std.net.curl.HTTP as a struct dependency

2017-07-10 Thread NoBigDeal256 via Digitalmars-d-learn
Still haven't figured out what's wrong. Any help would be appreciated.

Re: Why no offsetof for static struct?

2017-07-10 Thread Ali Çehreli via Digitalmars-d-learn
On 07/10/2017 02:14 PM, FoxyBrown wrote: > On Monday, 10 July 2017 at 20:13:46 UTC, Adam D. Ruppe wrote: >> On Monday, 10 July 2017 at 20:01:39 UTC, FoxyBrown wrote: >>> Cannot get the offset of static members of a struct >> >> That's because static members do not have an offset. They are not

Get a string of a function name from a function pointer?

2017-07-10 Thread SauceKode via Digitalmars-d-learn
I need to pass a group of (C) function pointers to another language from D... is there a way to derrive a name from a function pointer? Or do I have to manually list out the names?

Re: Fiber based UI-Toolkit

2017-07-10 Thread Jacob Carlborg via Digitalmars-d-learn
On 2017-07-10 15:37, Gerald wrote: Having said that, I'm in the camp where this doesn't make much sense. Using fibers on the main UI thread is likely going to result in a blocked UI whenever a fiber takes too long to do its work. History has shown that cooperative multi-tasking typically

Re: Fiber based UI-Toolkit

2017-07-10 Thread Gerald via Digitalmars-d-learn
On Sunday, 9 July 2017 at 19:43:14 UTC, Christian Köstlin wrote: I wonder if there is any fiber based / fiber compatible UI-Toolkit out for dlang. The second question is, if it would make sense at all to have such a thing? As previously noted, like other UI toolkits GTK maintains a single

Re: Fiber based UI-Toolkit

2017-07-10 Thread Christian Köstlin via Digitalmars-d-learn
On 10.07.17 15:37, Gerald wrote: > On Sunday, 9 July 2017 at 19:43:14 UTC, Christian Köstlin wrote: >> I wonder if there is any fiber based / fiber compatible UI-Toolkit out >> for dlang. The second question is, if it would make sense at all to >> have such a thing? > > As previously noted, like

pure factory function vs immutable(Foo)**

2017-07-10 Thread ag0aep6g via Digitalmars-d-learn
I feel like I must be missing something here. This works: alias T = int; T** f(const T** input) pure { T** output; return output; } void main() { T i; T* p = immutable T** r = f(); } `f` is `pure`, its parameter is const, and its return type has mutable