Re: How to correctly generate enums at compile time.
On Sunday, 30 April 2017 at 22:03:02 UTC, Kevin Balbas wrote: On Sunday, 30 April 2017 at 21:31:22 UTC, jkpl wrote: On Sunday, 30 April 2017 at 21:13:07 UTC, Kevin Balbas wrote: On Sunday, 30 April 2017 at 20:58:36 UTC, jkpl wrote: On Sunday, 30 April 2017 at 20:05:59 UTC, Kevin Balbas wrote: Strangely enough, it does work fine in the test snippet, [...] My actual project uses dub/visuald for building, so I don't really tinker with file ordering. Is this a thing that's supposed to happen? Hell no !
Re: How to correctly generate enums at compile time.
On Sunday, 30 April 2017 at 21:13:07 UTC, Kevin Balbas wrote: On Sunday, 30 April 2017 at 20:58:36 UTC, jkpl wrote: On Sunday, 30 April 2017 at 20:05:59 UTC, Kevin Balbas wrote: Strangely enough, it does work fine in the test snippet, As well if you import the snippet in another module. That's what i tried to tell. try to reduce step by step; The problem cant be the stuff you mix.
Re: How to correctly generate enums at compile time.
On Sunday, 30 April 2017 at 20:05:59 UTC, Kevin Balbas wrote:
I've got the following code snippet, which almost does what I
want.
struct TaggedType {}
@TaggedType
struct Foo {}
@TaggedType
struct Bar {}
string GenerateTypeEnum()
{
string enumString = "enum TypeEnum {";
foreach (name; __traits(allMembers, mixin(__MODULE__)))
{
import std.traits;
static if (hasUDA!(mixin(name), TaggedType))
{
enumString ~= name;
enumString ~= "Type,";
}
}
enumString ~= "}";
return enumString;
}
// generates enum TypeEnum {FooType,BarType,}
mixin(GenerateTypeEnum());
This works great, except that TypeEnum isn't accessible from
other modules (undefined identifier 'TypeEnum'), which is kind
of the point of doing this (I'm using the enum as a system-wide
tag for inter-thread communication). I can imagine why this
would be the case, but it's a pretty serious problem. Is there
a way to do this?
if i put your sniped in b.d and import in a.d b then i'm able to
access TypeEnum.
You r problem must be something stupid that's not related to
UDA/mixins.
That leads to this question (sorry) but at least do you import
the module that contains TypeEnum ?
Re: Factory using an alias template parameter to set a member of the new tool ?
On Thursday, 9 February 2017 at 15:00:21 UTC, angel wrote:
On Thursday, 9 February 2017 at 14:39:41 UTC, angel wrote:
On Thursday, 9 February 2017 at 13:30:07 UTC, jkpl wrote:
I'm looking for a better way to do this, if possible:
Or actually, maybe this will suite your case better:
```
template namedTool(T, alias Variable)
{
enum namedTool = T.stringof ~ " " ~ Variable ~ " = new " ~
T.stringof ~ ";" ~
Variable ~ ".name = \"" ~ Variable ~ "\";";
}
void main()
{
mixin(namedTool!(Tool, "grep"));
assert(grep.name == "grep");
}
```
Thanks for trying. I know that it doesn't make much sense but it
would have been a cool sugar for the tool class.
Mixins are not good for me because of completion in the IDE.
Factory using an alias template parameter to set a member of the new tool ?
I'm looking for a better way to do this, if possible:
```
class Tool
{
string name;
}
T namedTool(alias Variable, T)()
{
T result = new T;
result.name = Variable.stringof;
return result;
}
void main()
{
Tool grep;
grep = namedTool!(grep,Tool);
assert(grep.name == "grep");
}
```
Ideally this would work like this:
```
Tool grep = namedTool!Tool;
assert(grep.name == "grep");
```
Possible ?
Re: Static array size?
On Thursday, 9 February 2017 at 12:16:26 UTC, jkpl wrote: On Thursday, 9 February 2017 at 11:22:28 UTC, Suliman wrote: Docs says that: "The total size of a static array cannot exceed 16Mb." But when I am creation array of: int [1000_000] x; // 1000_000 is equal ~ 0,95MB app crush on start. Should it's reserve this memory with guaranty? I mean that after app start it should take +0.95MB of RAM in task manager. multiply by 4 Also static array is not on the heap so take care to which column of the task manager you monitor.
Re: Static array size?
On Thursday, 9 February 2017 at 11:22:28 UTC, Suliman wrote: Docs says that: "The total size of a static array cannot exceed 16Mb." But when I am creation array of: int [1000_000] x; // 1000_000 is equal ~ 0,95MB app crush on start. Should it's reserve this memory with guaranty? I mean that after app start it should take +0.95MB of RAM in task manager. multiply by 4
Re: Seemingly patternless optlink premature termination
On Sunday, 8 January 2017 at 19:15:49 UTC, Jerry wrote: On Sunday, 8 January 2017 at 18:49:50 UTC, Walter Bright wrote: P.S. Isn't it maddening that Windows doesn't allow copying the data from a message window? A bit more maddening that D is still trying to support optlink, a linker that hasn't seen a commit in 2 years when it is hardly bug free. Your comment is not pertinent. The object format doesn't change so the linker doesn't need to be updated. The problem here seems to be a bug. Until someone finds it, it can't be fixed.
Re: Seemingly patternless optlink premature termination
On Sunday, 8 January 2017 at 18:49:50 UTC, Walter Bright wrote: P.S. Isn't it maddening that Windows doesn't allow copying the data from a message window? Not really, because you can, Ctrl+C...
Re: Project Highlight: Voxelman
On Saturday, 31 December 2016 at 13:27:13 UTC, MrSmith wrote: On Saturday, 31 December 2016 at 11:48:34 UTC, jkpl wrote: I don't blame your personally but the last time a blog post presented a game (it was the one made by the author of dlib) there was also a similar problem. Were you aware that something gonna be posted and that necessarily people would try to build it ? I haven't really got to building the whole thing on linux. For full functionality it needs LMDB, LZ4, GLFW3, Enet and IMGUI libs. Ideally there should be a linux build with all dependencies in releases. No, I don't think the deps are necessary. That's a bit what's cool with linux OSes. What I mean is that there's a compilation error related to dlib: dub build --build=release Performing "release" build using dmd for x86_64. cbor-d 0.5.4: target for configuration "library" is up to date. derelict-util 2.0.6: target for configuration "library" is up to date. derelict-enet 2.0.0: target for configuration "library" is up to date. derelict-gl3 1.0.18: target for configuration "library" is up to date. derelict-glfw3 2.0.0: target for configuration "derelict-glfw3-dynamic" is up to date. dlib ~master: building configuration "library"... deps/dlib/dlib/filesystem/delegaterange.d(62,18): Error: function dlib.filesystem.delegaterange.DelegateInputRange!(DirEntry).DelegateInputRange.opApply does not override any function, did you mean to override 'std.range.interfaces.InputRange!(DirEntry).InputRange.opApply'? deps/dlib/dlib/filesystem/delegaterange.d(75,18): Error: function dlib.filesystem.delegaterange.DelegateInputRange!(DirEntry).DelegateInputRange.opApply does not override any function, did you mean to override 'std.range.interfaces.InputRange!(DirEntry).InputRange.opApply'? deps/dlib/dlib/filesystem/dirrange.d(35,7): Error: template instance dlib.filesystem.delegaterange.DelegateInputRange!(DirEntry) error instantiating dlib.container.aarray is deprecated, use dlib.container.dict instead dmd failed with exit code 1. Just an advice to Mike Parker. If it's possible, next time a project is highlighted you could try to contact the person before publishing the post so that people are not disappointed when they try to build the stuff.
Re: Project Highlight: Voxelman
On Friday, 30 December 2016 at 13:42:10 UTC, MrSmith wrote: On Friday, 30 December 2016 at 13:28:12 UTC, Mike Parker wrote: Voxelman is a plugin-driven voxel game engine that is built around a client-server architecture and sports multi-threaded world & mesh generation. I stumbled across a post on /r/VoxelGameDev a few weeks back and recognized the handle of MrSmith33 from these forums. That prompted me to click through and I was DlighteD to discover it was created with that language I can't seem to stop writing about. The post: http://dlang.org/blog/2016/12/30/project-highlight-voxelman/ Reddit: https://www.reddit.com/r/programming/comments/5l3eej/introducing_voxelman_a_plugindriven_voxel_game/ Thanks for doing this blog post, Mike! It doesn't build under linux. Problem with dlib. I don't blame your personally but the last time a blog post presented a game (it was the one made by the author of dlib) there was also a similar problem. Were you aware that something gonna be posted and that necessarily people would try to build it ?
Re: D future ...
On Friday, 30 December 2016 at 13:56:30 UTC, Getald wrote: On Thursday, 29 December 2016 at 21:41:45 UTC, aberba wrote: Styling is similar to CSS but different. Wished someone would just go for a full blown CSS parser. CSS has proven its more capable and loved for client side styling/decoration. Isn't this what GTK is essentially doing already where widget rendering is primarily defined by CSS. Yes but it's gtk, there's year of work behind the library. For a homemade GUI library CSS or not CSS is really just bikeshedding around the format. The real stuff is to write the rendering engine. It becomes particularly tricky when the engine also supports transformations. If something is not well done you see it directly after rotation and translation.
Re: Bitfields?
On Friday, 30 December 2016 at 13:45:23 UTC, Martin wrote: Are there any C-like bitfields in D? Yes - How can I use them? No - What could be used in their stead? If you're okay with dependencies and if you use DUB there's this very decent wrapper called EnumSet: - https://code.dlang.org/packages/iz - https://github.com/BBasile/iz/blob/master/import/iz/enumset.d#L226
Re: How to detect free/unfree memory segments?
On Friday, 23 December 2016 at 06:18:02 UTC, Suliman wrote: I would like to visualize how GC works and display free/not free memory segments. How I can understand which of them are used and which not? Could anybody explain what dangerous of memory fragmentation in languages without GC? Am I right understand that there is stay some small memory chunks that very hard to reuse? You start with a wrong assumption. The C malloc functions is not just a nasty and mean memory provider. Several implementations uses internally freelists. Which means that the gaps created by a free() may be filled again. For example - TCMallocator use free lists - GCC C malloc use free lists (as stated here http://www.gnu.org/software/libc/manual/html_node/Freeing-after-Malloc.html) - for snn.lib malloc (used by DMD win32) I can't say.
Re: D support for the Meson build system
On Monday, 22 August 2016 at 11:45:37 UTC, Matthias Klumpp wrote: On Monday, 22 August 2016 at 01:34:36 UTC, jkpl wrote: On Sunday, 21 August 2016 at 19:08:59 UTC, Matthias Klumpp wrote: for a project like Terminix, dub with LDC builds in 8.6s, while Meson and ninja take only 6s here. Did you try to build with DUB but with WIFI or ethernet interface toggled off ? I ran these a few times, and the results were comparable, although I think if I would perform proper statistics the variance would be relatively high. Compiler was LDC 1.0.0 (on a Xeon E3-1231 v3). Sorry I was thinking to something, that could have slowed down the DUB build, but this was obviouslt wrong.
Re: Float values are wrong in union
On Monday, 22 August 2016 at 04:52:40 UTC, Cauterite wrote:
On Monday, 22 August 2016 at 04:37:50 UTC, stunaep wrote:
I made a union to convert between int bits and floats, but the
values are coming out wrong sometimes.
I can already tell what this is going to be...
The problem is almost certainly nothing to do with your union,
it's this line:
float t2 = t.f;
This will load 0x7fb0 into ST(0), which instantly converts
it to 7FF0 because it's a signalling NaN, then store ST(0)
in your float `t2`.
Signalling NaNs are an ongoing problem in D's codegen. See
Don's remarks at this page:
https://issues.dlang.org/show_bug.cgi?id=16105#c2
The reason it works in other languages is because they don't
place floats in the floating point registers for non-arithmetic
operations. I've been trying to patch DMD's backend to behave
this way too, but it's much harder than I expected (difficult
codebase to understand/navigate).
That's a 32 bit codegen issue then because DMD64 's disasm shows
that SSE regs are used:
void foo()
{
union test { int i; float f; }
test t = { i : 0x7fb0};
float t2 = t.f;
test t3 = { f : t2 };
}
===
yields to
===
004586D0h push rbp
004586D1h mov rbp, rsp
004586D4h sub rsp, 10h
004586D8h mov dword ptr [rbp-10h], 7FB0h
004586DFh movss xmm0, dword ptr [rbp-10h]
004586E4h movss dword ptr [rbp-0Ch], xmm0
004586E9h movss xmm1, dword ptr [rbp-0Ch]
004586EEh movss dword ptr [rbp-08h], xmm1
004586F3h leave
004586F4h ret
===
Re: Float values are wrong in union
On Monday, 22 August 2016 at 04:37:50 UTC, stunaep wrote:
I made a union to convert between int bits and floats, but the
values are coming out wrong sometimes. This is working without
issue in other languages so I'm really stumped. Here's an
example:
union test { int i; float f; }
test t = { i : 0x7fb0};
float t2 = t.f;//int bits 0x7fb0 as float
test t3 = { f : t2 };
writefln("%x", t3.i);//prints 7ff0 NOT 0x7fb0
Ok on linux, 0x7fb0 is written, I tested under linux x86_64
with latest dmd beta, ldc and also gdc.
Which compiler and version do you use ?
Which OS and archi ?
Re: D support for the Meson build system
On Sunday, 21 August 2016 at 19:08:59 UTC, Matthias Klumpp wrote: for a project like Terminix, dub with LDC builds in 8.6s, while Meson and ninja take only 6s here. Did you try to build with DUB but with WIFI or ethernet interface toggled off ?
Re: Please consider r/d_language for announcements
On Sunday, 21 August 2016 at 13:58:18 UTC, bachmeier wrote: Many users judge programming languages by activity on their subreddits. Ours is https://www.reddit.com/r/d_language/ One purpose of the subreddit is to market the language to non-users. I want to provide those new to the language with: - Evidence that D is a serious, actively used language - Information about everything that is available For instance, I just posted about the new ggplotd release. This is a really nice tool, but if we only make announcements of these projects in the announce forum, we're losing the marketing points we could be getting from them. Therefore, please consider announcing there. The sub could be branded a bit too. Afaik this requires admin privileges.
Re: Does a Interpretation-Engine fit in phobos ?
On Thursday, 30 June 2016 at 10:28:03 UTC, Stefan Koch wrote: Hi, I recently had a breakthrough in my CTFE work. Though because habits die hard. I am writing the bytecode-engine in a CTFEable style. Therefore I can be used as a quite comfortable IR for CTFE things as well. It should be fairly easy to generate a inline-asm-string from the byteCode at compiletime. And thereby creating the possibility of generating optimized code at compile-time. I was wondering if such a thing would fit in phobos. Please share your opinions with me :) Regards, Stefan No platform limitation is the rule of thumb.
Re: Some questions on latest work
On Wednesday, 27 April 2016 at 16:45:44 UTC, Bienlein wrote: On Tuesday, 26 April 2016 at 21:49:33 UTC, Bill Hicks wrote: Quitting a well paying job at Facebook to peruse a hobby (...) This is why I thought that those issues with the GC and things like RefCounted could have been fixed meanwhile. I would like to encourage the D people to put priority on fixing everything that is vital for surprise-free development in D. Because those surprises seem to me really being what drives people away from D, which is a pitty as it is really the best thought out language I have seen so far. For people not being C or C++ developers from ground up fixing those issues that pop up in D here and there themselves is simply too effortful ;-). It's because of the second concept.
Re: __traits(compiles) and template instantiation
On Thursday, 7 April 2016 at 21:36:37 UTC, Alex Parrill wrote:
On Thursday, 7 April 2016 at 20:31:12 UTC, jmh530 wrote:
I've been playing around with __traits and I find myself
confused on one aspect. In the code below, I was testing
whether some templates would compile given types. For the most
part it works as I would expect.
[...]
Neither the third nor sixth lines should be true.
alias wrongfoo = foo!int; /* Error: template instance
foo!int does not match template declaration foo(T, U)(T x, U y)
if (isNumeric!T && isNumeric!U) */
alias rightfoo = foo!(int, int); /* ok */
File a DMD bug.
(Also, you can use static assert here to check the assertions
at build-time instead of run-time)
is(typeof()) gives the expected results:
import std.traits : isNumeric;
import std.range : isInputRange;
void foo(T, U)(T x, U y) if (isNumeric!T && isNumeric!U) { }
void bar(T, U)(T x, U y) if (isNumeric!T && isInputRange!U) { }
unittest
{
static assert(is(typeof(foo!(int, int; //I get this
static assert(!is(typeof(foo!(bool, bool; //I get this
static assert(!is(typeof(foo!(int; //I think I get this
static assert(is(typeof(bar!(int, int[];//I get this
static assert(!is(typeof(bar!(int, int; //I get this
static assert(!is(typeof(bar!(int; //I don't get this
}
(note well I have changed the assertion 3 and 6).
There must be a subtle difference between __traits(compile,...)
and is(typeof()).
Does "compiles" mean that you've get something but that this
thing is not always of a valid type ?
Re: Problem using shared D library from C shared library
On Thursday, 7 April 2016 at 05:23:47 UTC, Yuxuan Shui wrote: On Thursday, 7 April 2016 at 04:36:02 UTC, Yuxuan Shui wrote: On Thursday, 7 April 2016 at 04:24:48 UTC, Yuxuan Shui wrote: [...] Looks like _d_arrayappendcTX asked for a enormous amount of memory and it fails, can't figure out why Just find out it's my own fault. BTW, memory block allocated by core.stdc.stdlib.malloc will not be scanned by collector, right? right, that's why it's annotated @nogc ;)
Re: Idiomatic way to generate all possible values a static array of ubyte can have
On Saturday, 2 April 2016 at 18:32:03 UTC, Steven Schveighoffer wrote: I honestly think you are better off just generating random arrays, even if it results in some overlap (unlikely to be relevant). -Steve Yes I know, I've realized how it's silly. just foreach(xn; 0 .. range) foreach(xn; 0 .. range) foreach(xn; 0 .. range) foreach(xn; 0 .. range) is enough. But still silly in term of complexity. I have to go for a heuristic approach. UNtil that I still use a prng.
Re: Idiomatic way to generate all possible values a static array of ubyte can have
gives: core.exception.OutOfMemoryError@src/core/exception.d(693): Memory allocation failed
Re: Idiomatic way to generate all possible values a static array of ubyte can have
On Saturday, 2 April 2016 at 09:11:34 UTC, jkpl wrote:
On Saturday, 2 April 2016 at 08:48:10 UTC, rikki cattermole
wrote:
On 02/04/2016 9:36 PM, jkpl wrote:
On Saturday, 2 April 2016 at 08:27:07 UTC, rikki cattermole
wrote:
Okay that is a problem then.
Yes clearly!
Maybe this, a bit better:
foreach (b0; randomCover(iota(0,256)))
foreach (b1; randomCover(iota(0,256)))
...
foreach (b255; randomCover(iota(0,256)))
{
...
}
Still not the right approach,
import std.stdio;
import std.random;
import std.range;
void testRunner(bool function(ubyte[128]) test)
{
uint[32] arr;
foreach (v0; randomCover(iota(0U,uint.max)))
foreach (v1; randomCover(iota(0U,uint.max)))
foreach (v2; randomCover(iota(0U,uint.max)))
foreach (v3; randomCover(iota(0U,uint.max)))
foreach (v4; randomCover(iota(0U,uint.max)))
foreach (v5; randomCover(iota(0U,uint.max)))
foreach (v6; randomCover(iota(0U,uint.max)))
foreach (v7; randomCover(iota(0U,uint.max)))
foreach (v8; randomCover(iota(0U,uint.max)))
foreach (v9; randomCover(iota(0U,uint.max)))
foreach (v10; randomCover(iota(0U,uint.max)))
foreach (v11; randomCover(iota(0U,uint.max)))
foreach (v12; randomCover(iota(0U,uint.max)))
foreach (v13; randomCover(iota(0U,uint.max)))
foreach (v14; randomCover(iota(0U,uint.max)))
foreach (v15; randomCover(iota(0U,uint.max)))
foreach (v16; randomCover(iota(0U,uint.max)))
foreach (v17; randomCover(iota(0U,uint.max)))
foreach (v18; randomCover(iota(0U,uint.max)))
foreach (v19; randomCover(iota(0U,uint.max)))
foreach (v20; randomCover(iota(0U,uint.max)))
foreach (v21; randomCover(iota(0U,uint.max)))
foreach (v22; randomCover(iota(0U,uint.max)))
foreach (v23; randomCover(iota(0U,uint.max)))
foreach (v24; randomCover(iota(0U,uint.max)))
foreach (v25; randomCover(iota(0U,uint.max)))
foreach (v26; randomCover(iota(0U,uint.max)))
foreach (v27; randomCover(iota(0U,uint.max)))
foreach (v28; randomCover(iota(0U,uint.max)))
foreach (v29; randomCover(iota(0U,uint.max)))
foreach (v30; randomCover(iota(0U,uint.max)))
foreach (v31; randomCover(iota(0U,uint.max)))
{
arr = [v0,v1,v2,v3,v4,v5,v6,v7,v8,v9,
v10,v11,v12,v13,v14,v15,v16,v17,v18,v19,
v20,v21,v22,v23,v24,v25,v26,v27,v28,v29,
v30, v31
];
writeln(arr);
//if (test(cast(ubyte[128]) arr))
return;
}
}
bool test(ubyte[128] arr)
{
if (arr[0] == 0U)
return true;
else
return false;
}
void main()
{
testRunner();
}
Re: Idiomatic way to generate all possible values a static array of ubyte can have
On Saturday, 2 April 2016 at 08:48:10 UTC, rikki cattermole wrote:
On 02/04/2016 9:36 PM, jkpl wrote:
On Saturday, 2 April 2016 at 08:27:07 UTC, rikki cattermole
wrote:
Okay that is a problem then.
Yes clearly!
Maybe this, a bit better:
foreach (b0; randomCover(iota(0,256)))
foreach (b1; randomCover(iota(0,256)))
...
foreach (b255; randomCover(iota(0,256)))
{
...
}
Re: Idiomatic way to generate all possible values a static array of ubyte can have
On Saturday, 2 April 2016 at 08:27:07 UTC, rikki cattermole wrote: On 02/04/2016 9:20 PM, jkpl wrote: Let's say I have a ubyte[256]. I want to test all the possible values this array can have on a function. Actually I'd use a hex string. So: static ubyte[256] DATA = cast(ubyte[256])x"00 01 02 03"; I'm sure you get the idea. That can be created easily enough. No I don't get the idea. I think that I haven't well explained. By static array I meant "not dynamic". The 256^256 combinations must be generated on the same ubyte[256], which is a variable, during the program execution.
Idiomatic way to generate all possible values a static array of ubyte can have
Let's say I have a ubyte[256]. I want to test all the possible values this array can have on a function. Currently I fill it for each new test with std.random.uniform but I'm sure that I loose some time with randomizing and with the tests that are repeated. Is there a simple way to do this ? Without thinking much, it seems that the loops to generate this would be seriously awefull. By thinking a bit more maybe with a fixed-size big integer it would work, since the value could be casted as the right array type (as long as its length is power of 2) ?
Re: Obtaining argument names in (variadic) functions
On Wednesday, 16 March 2016 at 20:24:38 UTC, data pulverizer
wrote:
Hi D gurus,
is there a way to obtain parameter names within the function
body? I am particularly interested in variadic functions.
Something like:
void myfun(T...)(T x){
foreach(i, arg; x)
writeln(i, " : ", arg);
}
void main(){
myfun(a = 2, b = "two", c = 2.0);
}
// should print
a : 2
b : two
c : 2.0
Thanks in advance
Loving the mixins and tuples
I try to anticipate the reason why you want this. As said in a
previous answer you can access to an individual element by using
the array syntax but also _param_, with X the index of the
parameter:
void myfun(T...)(T x)
{
import std.traits; import std.stdio;
writeln(ParameterIdentifierTuple!(myfun!T));
writeln(_param_0);
writeln(_param_1);
writeln(_param_2);
}
void main()
{
int a=1,b=2,c=3;
myfun(a,b,c);
}
Re: nanosecond time
On Saturday, 13 February 2016 at 19:24:44 UTC, ishwar wrote: I am stumped on need finding interval between two events in a program execution in nanoseconds. Any sample code will be appreciated (along with imports needed to make it work): - time in nanoseconds-now - do-some processing - time in nano-second-now Thanks use a StopWatch: http://dlang.org/phobos/std_datetime.html#.StopWatch
Re: DMD Issue with Asm Generation?
On Saturday, 13 February 2016 at 20:50:22 UTC, user001 wrote: Disregard all that above, looks like someone used a "double" which uses 0x7FF0 to check if infinite. Not sure why the code runs fine on x86 though, different library maybe? https://github.com/D-Programming-Language/phobos/blob/master/std/format.d#L1709 yes the line you highlight is for DMD64 (windows of course), which explains well why x86 is OK since it uses the C runtime library by DigitalMars (aka snn.lib). Now I'm not quite sure if it should be T tval = val; because of the comment just after: convert early to get "inf" in case of overflow
Re: D popularity clearly on the rise in early 2016?!
On Saturday, 6 February 2016 at 12:26:28 UTC, Rom wrote: Hi guys. I watch this index each month, and D moved 20 places up between January and February. it's now in the supposedly "top 20 most popular programming languages". I don't know yet whether this is due to some artefacts or if it reflects something true about D popularity. Link -> http://www.tiobe.com/index.php/content/paperinfo/tpci/index.html Hope you enjoy Rom already discussed here: https://forum.dlang.org/thread/xovaxpfwvmgdxfzgd...@forum.dlang.org
Re: Using C++ everywhere D is makes things worst
On Wednesday, 3 February 2016 at 13:27:45 UTC, karabuta wrote: I understand many D programmers were formally(or still is or in-between) C++ but most explanations for certain things tells me either D is a C++ clone or I need to learn C++ first before I really understand D (kind of like C++ is a subset of D). I must say that I never coded C++ beyond "hello, world!" and I don't plan to. This is not about me and what I want, it is about improving the D learning resources available. Explaining D code by using C/C++ code and or theory confuses me as a learner. D alone is too much to learn. You neither need a C nor a CPP background to learn D. Before starting to learn D I was only (and barely) reading C, just because of the few times I had to deal with C headers file when using bindings in another lang. You can start D from scratch. This is not because there are comparisons (such as the wiki sections: comming from...) that it's mandatory. For example with http://ddili.org/ders/d.en/index.html you can start from scratch, at least the book is advertised so.
Re: Variable below zero but if statement doesn't grab?
On Sunday, 27 December 2015 at 16:00:34 UTC, jkpl wrote: On Sunday, 27 December 2015 at 15:53:55 UTC, TheDGuy wrote: Any idea what i am doing wrong? https://www.youtube.com/watch?v=j_VCa-5VeP8 You could post the code also, personnaly I'm always almost at 2 meters from my screen, with zoom, so I can't read the code... I work more or less lying on a futon. Desks are so cheesy...
Re: Variable below zero but if statement doesn't grab?
On Monday, 28 December 2015 at 18:02:53 UTC, jkpl wrote: On Monday, 28 December 2015 at 15:50:06 UTC, Basile B. wrote: On Monday, 28 December 2015 at 15:07:08 UTC, jkpl wrote: On Sunday, 27 December 2015 at 16:00:34 UTC, jkpl wrote: On Sunday, 27 December 2015 at 15:53:55 UTC, TheDGuy wrote: Any idea what i am doing wrong? https://www.youtube.com/watch?v=j_VCa-5VeP8 You could post the code also, personnaly I'm always almost at 2 meters from my screen, with zoom, so I can't read the code... I work more or less lying on a futon. Desks are so cheesy... Anarchism is comfy... when I'm tired with the conformism I just let my head go on the pillow and I sleep... (snoring) Even if I dont't think that you have won: https://youtu.be/Uj_7kTwRMKE?t=2m35s https://www.youtube.com/watch?v=g7qx5oYdOEA tous fashos: juif, chrétien, musulmans,... Il n'y a bien que les communistes qui ont compris que les religions c'est de la merde.
Re: Variable below zero but if statement doesn't grab?
On Monday, 28 December 2015 at 15:50:06 UTC, Basile B. wrote: On Monday, 28 December 2015 at 15:07:08 UTC, jkpl wrote: On Sunday, 27 December 2015 at 16:00:34 UTC, jkpl wrote: On Sunday, 27 December 2015 at 15:53:55 UTC, TheDGuy wrote: Any idea what i am doing wrong? https://www.youtube.com/watch?v=j_VCa-5VeP8 You could post the code also, personnaly I'm always almost at 2 meters from my screen, with zoom, so I can't read the code... I work more or less lying on a futon. Desks are so cheesy... Anarchism is comfy... when I'm tired with the conformism I just let my head go on the pillow and I sleep... (snoring) Even if I dont't think that you have won: https://youtu.be/Uj_7kTwRMKE?t=2m35s
Re: Variable below zero but if statement doesn't grab?
On Monday, 28 December 2015 at 18:33:16 UTC, jkpl wrote: On Monday, 28 December 2015 at 18:12:24 UTC, jkpl wrote: On Monday, 28 December 2015 at 18:02:53 UTC, jkpl wrote: On Monday, 28 December 2015 at 15:50:06 UTC, Basile B. wrote: On Monday, 28 December 2015 at 15:07:08 UTC, jkpl wrote: On Sunday, 27 December 2015 at 16:00:34 UTC, jkpl wrote: On Sunday, 27 December 2015 at 15:53:55 UTC, TheDGuy wrote: Any idea what i am doing wrong? https://www.youtube.com/watch?v=j_VCa-5VeP8 You could post the code also, personnaly I'm always almost at 2 meters from my screen, with zoom, so I can't read the code... I work more or less lying on a futon. Desks are so cheesy... Anarchism is comfy... when I'm tired with the conformism I just let my head go on the pillow and I sleep... (snoring) Even if I dont't think that you have won: https://youtu.be/Uj_7kTwRMKE?t=2m35s https://www.youtube.com/watch?v=g7qx5oYdOEA tous fashos: juif, chrétien, musulmans,... Il n'y a bien que les communistes qui ont compris que les religions c'est de la merde. Also, european people should ask themselves why they stick on the US culture since 60 years, while actually Russians freed Berlin. One last thing. Tough guy ? https://www.youtube.com/watch?v=1igvrZ0KosA
Re: Variable below zero but if statement doesn't grab?
On Monday, 28 December 2015 at 18:12:24 UTC, jkpl wrote: On Monday, 28 December 2015 at 18:02:53 UTC, jkpl wrote: On Monday, 28 December 2015 at 15:50:06 UTC, Basile B. wrote: On Monday, 28 December 2015 at 15:07:08 UTC, jkpl wrote: On Sunday, 27 December 2015 at 16:00:34 UTC, jkpl wrote: On Sunday, 27 December 2015 at 15:53:55 UTC, TheDGuy wrote: Any idea what i am doing wrong? https://www.youtube.com/watch?v=j_VCa-5VeP8 You could post the code also, personnaly I'm always almost at 2 meters from my screen, with zoom, so I can't read the code... I work more or less lying on a futon. Desks are so cheesy... Anarchism is comfy... when I'm tired with the conformism I just let my head go on the pillow and I sleep... (snoring) Even if I dont't think that you have won: https://youtu.be/Uj_7kTwRMKE?t=2m35s https://www.youtube.com/watch?v=g7qx5oYdOEA tous fashos: juif, chrétien, musulmans,... Il n'y a bien que les communistes qui ont compris que les religions c'est de la merde. Also, european people should ask themselves why they stick on the US culture since 60 years, while actually Russians freed Berlin.
Re: Variable below zero but if statement doesn't grab?
On Monday, 28 December 2015 at 19:22:00 UTC, jkpl wrote: On Monday, 28 December 2015 at 18:33:16 UTC, jkpl wrote: On Monday, 28 December 2015 at 18:12:24 UTC, jkpl wrote: On Monday, 28 December 2015 at 18:02:53 UTC, jkpl wrote: On Monday, 28 December 2015 at 15:50:06 UTC, Basile B. wrote: On Monday, 28 December 2015 at 15:07:08 UTC, jkpl wrote: On Sunday, 27 December 2015 at 16:00:34 UTC, jkpl wrote: On Sunday, 27 December 2015 at 15:53:55 UTC, TheDGuy wrote: Any idea what i am doing wrong? https://www.youtube.com/watch?v=j_VCa-5VeP8 You could post the code also, personnaly I'm always almost at 2 meters from my screen, with zoom, so I can't read the code... I work more or less lying on a futon. Desks are so cheesy... Anarchism is comfy... when I'm tired with the conformism I just let my head go on the pillow and I sleep... (snoring) Even if I dont't think that you have won: https://youtu.be/Uj_7kTwRMKE?t=2m35s https://www.youtube.com/watch?v=g7qx5oYdOEA tous fashos: juif, chrétien, musulmans,... Il n'y a bien que les communistes qui ont compris que les religions c'est de la merde. Also, european people should ask themselves why they stick on the US culture since 60 years, while actually Russians freed Berlin. One last thing. Tough guy ? https://www.youtube.com/watch?v=1igvrZ0KosA I always try to find a link to the scene, in south america: "And finally I've done what I always done...". I never find it. It's probably because judgment defaits us: https://www.youtube.com/watch?v=xNRBajLM8_4 We want to show something, but we're always near, no so far, not close to our idea. It exists but we cant find a reference to the perfect representation of the idea...
Re: Variable below zero but if statement doesn't grab?
On Sunday, 27 December 2015 at 15:53:55 UTC, TheDGuy wrote: Any idea what i am doing wrong? https://www.youtube.com/watch?v=j_VCa-5VeP8 You could post the code also, personnaly I'm always almost at 2 meters from my screen, with zoom, so I can't read the code...
Re: Coedit 1 - update 1
On Thursday, 25 June 2015 at 11:34:17 UTC, tired_eyes wrote: On Thursday, 25 June 2015 at 04:10:15 UTC, Basile Burg wrote: This is the first update for Coedit 1, and probably the only. Errr... why so pessimistic? It's not pessimistic, it's the opposite. This explained by the software versioning system: the updates for the version 1 are on a dedicated branch; the changes made to the master branch are actually for the second version hence no more updates means that the software is stable. It's not like semver that continues after 1.0 to 1.1 then 1.2 and so on...
Re: fast way to insert element at index 0
On Tuesday, 23 June 2015 at 05:16:23 UTC, Assembly wrote:
What's a fast way to insert an element at index 0 of array? now
that the code is working I want to clean this:
void push(T val)
{
T[] t = new T[buffer.length + 1];
t[0] = val;
t[1 .. $] = buffer;
buffer = t;
}
I did this because I didn't find any suble built-in data
structure that let me insert an item into a specific index at
first search. Slist does have insertFron(), exactly what I'm
looking for it's a linked list.
* Option 1/
if most of the time you have to insert at the beginning, then
start reading from the end and append to the end, so that the
existing block has not to be moved. You just have to add val at
the end.
* Option 2/
better way to move the whole block (this can be done with memmove
too).
---
void push(T val)
{
buffer.length += 1;
buffer[1..$] = buffer[0..$-1];
// or memmove(buffer.ptr + T.sizeof, buffer.ptr,
(buffer.length - 1) * T.sizeof);
buffer[0] = val;
}
---
* Option 3/
linked lists are better to insert/move.
Re: Download DDMD?
On Wednesday, 22 April 2015 at 09:26:37 UTC, jkpl wrote: On Wednesday, 22 April 2015 at 07:57:40 UTC, Jeremiah DeHaan wrote: Just curious, but I was wondering if there was a 2.067 DDMD available for download somewhere for Windows. If not, then are there any special build instructions I need to build it? I kind of just want to try a couple of things, so I would rather I not have to build it if I can avoid it. the 2.067 ddmd is available as a static library. For the moment it only includes the lexer and the parser: https://github.com/yebblies/ddmd it does not require anything specific to build: pass the sources, set the -lib switch, maybe set the warnings/depreciations to off because there are some small syntax issues (C-stle array or switch case fallthrough). I've put it metad btw https://github.com/BBasile/metad/blob/master/projects/ddmd.coedit
Re: Download DDMD?
On Wednesday, 22 April 2015 at 15:06:17 UTC, Jeremiah DeHaan wrote: On Wednesday, 22 April 2015 at 09:26:37 UTC, jkpl wrote: On Wednesday, 22 April 2015 at 07:57:40 UTC, Jeremiah DeHaan wrote: Just curious, but I was wondering if there was a 2.067 DDMD available for download somewhere for Windows. If not, then are there any special build instructions I need to build it? I kind of just want to try a couple of things, so I would rather I not have to build it if I can avoid it. the 2.067 ddmd is available as a static library. For the moment it only includes the lexer and the parser: https://github.com/yebblies/ddmd it does not require anything specific to build: pass the sources, set the -lib switch, maybe set the warnings/depreciations to off because there are some small syntax issues (C-stle array or switch case fallthrough). Yes, I was aware of this, but I actually want it as a compiler. oops, i was not sure of you being a noob even if i saw your avatar many times here. Sorry. Just ask to someone of the core...
Re: SDC needs you -- redux
On Saturday, 18 April 2015 at 17:21:28 UTC, Shammah Chancellor wrote: ...Even just having people in the channel to have discourse with would be helpful! Cheers, -Shammah Hey. Is the win32 build fixed now (libd) ? Since, i don't know, maybe 2 monthes, it looks like there is a mess with the 32/64 bit types.
Re: Download DDMD?
On Wednesday, 22 April 2015 at 07:57:40 UTC, Jeremiah DeHaan wrote: Just curious, but I was wondering if there was a 2.067 DDMD available for download somewhere for Windows. If not, then are there any special build instructions I need to build it? I kind of just want to try a couple of things, so I would rather I not have to build it if I can avoid it. the 2.067 ddmd is available as a static library. For the moment it only includes the lexer and the parser: https://github.com/yebblies/ddmd it does not require anything specific to build: pass the sources, set the -lib switch, maybe set the warnings/depreciations to off because there are some small syntax issues (C-stle array or switch case fallthrough).
Re: Context Sensitive Gui Library
On Saturday, 11 April 2015 at 07:28:50 UTC, Rikki Cattermole wrote: On 11/04/2015 7:24 p.m., jkpl wrote: On Saturday, 11 April 2015 at 05:45:10 UTC, Rikki Cattermole wrote: On 11/04/2015 5:43 p.m., Rashad Vinshy wrote: CSGL: I would like to announce the release of my beta library for D! What is the best plan of action at this point to contribute it to the D community? (the library still needs debugging and optimization support, I've only tested it on my machine) For those interested the library hast he following features currently supported: 1. CSGL exists on a series of overlays over the workspace - by simply design one can simulate traditional gui's. 2. CSGL has context sensitive capabilities - Allows one to change the gui depending on what actions have previously taken place. 3. CSGL is intelligent and can find optimal patterns in your work flow. You are presented with what you need at that point. The self modifying gui can adapt not only visual elements but also context sensitive hotkeys, mouse interact, and even things such as MIDI, OSC, COM, etc. 4. CSGL has a built in fully capable scripting editor. One can not only write their on wrappers around the gui elements but also design commonly used macros to reduce complex gui interaction tasks. One can even do such things as animation using the scripting language 5. CSGL has pluggable modules that can be freely used by any gui that recognizes them. One can also access them through scripting. 6. The visual template of the gui can be easily changed through the gui template library. (your apps can be reskinned by a few clicks) 7. Full multi-monitor support, including automatically tracking usage patterns to present the user with the best possible scenario. 8. Full User-Edit mode. By a special hotkey the user can go into edit mode and configure and edit the different gui elements. The same editor is used to the design the gui. Features to come: Full GUI editor(not done yet). Something like Blend. -- Next week I will be able to upload a working demo that shows off some of the capabilities; Some of the graphics treats such as alpha channel tricks, along with how context sensitive gui's work. The demo is a graphics program that essentially changes the gui as you change your working actions. If you use the paintbrush tool, not only do the other tools reorder themselves, they also can(but not necessarily) configure themselves to present to you similar choices that were used before in similar contexts. In this case(of a new user) a circular swatch is present to the user that surrounds the canvas for easy color access that is on it's own overlay along with the right mouse button becoming a different function(from a secondary drawing tool function to an eraser. This was done by scripting side to show how it can be used). Also, If anyone is interested in helping with this project please let me know. Thanks, RV Thats nice. Now where is the source code? Same here...quite amused. I think that now he's gone in nothern Yukkon to kill the bear whose skin just been sold. Though i might be wrong. I umm, not sure I understand you. it's based on this french idiom: (vendre la peau de l'ours avant de l'avoir tué) in a nutshell: I suspect this announce to be spam because: 1/ googlelize the OP name: nothing, except this post. For such a framework, the guy cannot land from nowhere. 2/ he has posted in te wrong fourm section. 3/ no screenshot, no links. 4/ the concept is quite abstruse, not self-explanatory, no tech details (e.g open-gl for this, xml for that... 5/ it's too providential. Though i might be wrong.
Re: Context Sensitive Gui Library
On Saturday, 11 April 2015 at 05:45:10 UTC, Rikki Cattermole wrote: On 11/04/2015 5:43 p.m., Rashad Vinshy wrote: CSGL: I would like to announce the release of my beta library for D! What is the best plan of action at this point to contribute it to the D community? (the library still needs debugging and optimization support, I've only tested it on my machine) For those interested the library hast he following features currently supported: 1. CSGL exists on a series of overlays over the workspace - by simply design one can simulate traditional gui's. 2. CSGL has context sensitive capabilities - Allows one to change the gui depending on what actions have previously taken place. 3. CSGL is intelligent and can find optimal patterns in your work flow. You are presented with what you need at that point. The self modifying gui can adapt not only visual elements but also context sensitive hotkeys, mouse interact, and even things such as MIDI, OSC, COM, etc. 4. CSGL has a built in fully capable scripting editor. One can not only write their on wrappers around the gui elements but also design commonly used macros to reduce complex gui interaction tasks. One can even do such things as animation using the scripting language 5. CSGL has pluggable modules that can be freely used by any gui that recognizes them. One can also access them through scripting. 6. The visual template of the gui can be easily changed through the gui template library. (your apps can be reskinned by a few clicks) 7. Full multi-monitor support, including automatically tracking usage patterns to present the user with the best possible scenario. 8. Full User-Edit mode. By a special hotkey the user can go into edit mode and configure and edit the different gui elements. The same editor is used to the design the gui. Features to come: Full GUI editor(not done yet). Something like Blend. -- Next week I will be able to upload a working demo that shows off some of the capabilities; Some of the graphics treats such as alpha channel tricks, along with how context sensitive gui's work. The demo is a graphics program that essentially changes the gui as you change your working actions. If you use the paintbrush tool, not only do the other tools reorder themselves, they also can(but not necessarily) configure themselves to present to you similar choices that were used before in similar contexts. In this case(of a new user) a circular swatch is present to the user that surrounds the canvas for easy color access that is on it's own overlay along with the right mouse button becoming a different function(from a secondary drawing tool function to an eraser. This was done by scripting side to show how it can be used). Also, If anyone is interested in helping with this project please let me know. Thanks, RV Thats nice. Now where is the source code? Same here...quite amused. I think that now he's gone in nothern Yukkon to kill the bear whose skin just been sold. Though i might be wrong.
Re: Context Sensitive Gui Library
On Saturday, 11 April 2015 at 09:11:35 UTC, Rikki Cattermole wrote: On 11/04/2015 8:34 p.m., jkpl wrote: On Saturday, 11 April 2015 at 07:28:50 UTC, Rikki Cattermole wrote: On 11/04/2015 7:24 p.m., jkpl wrote: On Saturday, 11 April 2015 at 05:45:10 UTC, Rikki Cattermole wrote: On 11/04/2015 5:43 p.m., Rashad Vinshy wrote: CSGL: I would like to announce the release of my beta library for D! What is the best plan of action at this point to contribute it to the D community? (the library still needs debugging and optimization support, I've only tested it on my machine) For those interested the library hast he following features currently supported: 1. CSGL exists on a series of overlays over the workspace - by simply design one can simulate traditional gui's. 2. CSGL has context sensitive capabilities - Allows one to change the gui depending on what actions have previously taken place. 3. CSGL is intelligent and can find optimal patterns in your work flow. You are presented with what you need at that point. The self modifying gui can adapt not only visual elements but also context sensitive hotkeys, mouse interact, and even things such as MIDI, OSC, COM, etc. 4. CSGL has a built in fully capable scripting editor. One can not only write their on wrappers around the gui elements but also design commonly used macros to reduce complex gui interaction tasks. One can even do such things as animation using the scripting language 5. CSGL has pluggable modules that can be freely used by any gui that recognizes them. One can also access them through scripting. 6. The visual template of the gui can be easily changed through the gui template library. (your apps can be reskinned by a few clicks) 7. Full multi-monitor support, including automatically tracking usage patterns to present the user with the best possible scenario. 8. Full User-Edit mode. By a special hotkey the user can go into edit mode and configure and edit the different gui elements. The same editor is used to the design the gui. Features to come: Full GUI editor(not done yet). Something like Blend. -- Next week I will be able to upload a working demo that shows off some of the capabilities; Some of the graphics treats such as alpha channel tricks, along with how context sensitive gui's work. The demo is a graphics program that essentially changes the gui as you change your working actions. If you use the paintbrush tool, not only do the other tools reorder themselves, they also can(but not necessarily) configure themselves to present to you similar choices that were used before in similar contexts. In this case(of a new user) a circular swatch is present to the user that surrounds the canvas for easy color access that is on it's own overlay along with the right mouse button becoming a different function(from a secondary drawing tool function to an eraser. This was done by scripting side to show how it can be used). Also, If anyone is interested in helping with this project please let me know. Thanks, RV Thats nice. Now where is the source code? Same here...quite amused. I think that now he's gone in nothern Yukkon to kill the bear whose skin just been sold. Though i might be wrong. I umm, not sure I understand you. it's based on this french idiom: (vendre la peau de l'ours avant de l'avoir tué) in a nutshell: I suspect this announce to be spam because: 1/ googlelize the OP name: nothing, except this post. For such a framework, the guy cannot land from nowhere. 2/ he has posted in te wrong fourm section. 3/ no screenshot, no links. 4/ the concept is quite abstruse, not self-explanatory, no tech details (e.g open-gl for this, xml for that... 5/ it's too providential. Though i might be wrong. Ohhh that. Yeah I understand your pov on this. I just don't like risking alienating somebody who could become part of the D community. I think that if the guy is serious he won't give up because his product is about to be released and he would probably be clever enough to get that my suspicion doesn't matter since i'm just a casual user (casual poster here as well). By the way, after a few investigations and thanks to my hypermnesia, i think that i've spotted him, and if it's the case, the pre-announce is honnest. He might be the author of this other topic: http://forum.dlang.org/thread/yfdaeaduvbqyrjqsq...@forum.dlang.org#post-mailman.3008.1418200191.9932.digitalmars-d:40puremagic.com it was a survey to estimate if it's worth to release a commercial D library.
Re: UDAs and no complaints about need 'this'
On Thursday, 9 April 2015 at 09:53:15 UTC, John Colvin wrote:
struct BigLongStructName
{
int evenLongerMemberName;
}
struct QN{}
unittest
{
BigLongStructName bigLongStructName;
@(bigLongStructName.evenLongerMemberName)
QN quickName;
__traits(getAttributes, quickName)[0]++;
}
Is it just me or is it weird that this works? Once you pull the
UDA out from being a storage class and attempt to alias it, you
get the usual need 'this' for 'evenLongerMemberName' of type
'int' error messages on use.
Why are UDAs so special? I don't believe there's any other way
to achieve this sort of effective renaming.
I think it's an error. When the attribute is a struct, it looks
like the member is processed as a static variable. But the
equivalent with a class raises an AV:
---
class BigLongStructName
{
int evenLongerMemberName;
}
struct QN{}
unittest
{
import std.stdio;
BigLongStructName bigLongStructName;
@(bigLongStructName.evenLongerMemberName)
QN quickName;
__traits(getAttributes, quickName)[0]++;
}
---
which is a totally expected behaviour.
Re: A few notes on choosing between Go and D for a quick project
On Wednesday, 18 March 2015 at 23:41:41 UTC, Walter Bright wrote:
On 3/18/2015 5:45 AM, CraigDillabaugh wrote:
You said that Unfortunately this thinking is going out of
style for good
reasons. I am confused (sorry, I am at work, and didn't
have time to watch
the 1+ hour video you linked to - maybe some clues were there)!
Consider this C code:
#include stdbool.h
#include stdio.h
typedef long T;
bool find(T *array, size_t dim, T t) {
int i;
for (i = 0; i = dim; i++);
{
int v = array[i];
if (v == t)
return true;
}
}
There are several bugs in it. I've showed this to probably over
1000 programmers, and nobody found all the bugs in it (they are
obvious once pointed out). It is not easy to write bug free
loop code, and find() is a trivial function.
just for fun:
1/ '=' instead of ''
2/ array should be tested against null before entering the loop
3/ 'int v' instead of 'T v'
Got them all ?
Re: Defining a single opCast disables explicit cast to base interfaces
On Tuesday, 17 March 2015 at 05:27:38 UTC, Ali Çehreli wrote:
The following program compiles fine:
interface I
{}
class B : I
{}
class C : B
{
int i;
}
void main()
{
auto c = new C;
auto i = cast(I)c;// compiles
auto b = cast(B)c;// compiles
}
Let's add an unrelated opCast to C:
class C : B
{
int i;
int opCast(T : int)()
{
return i;
}
}
Now the last two lines of main fail to compile:
Error: template instance opCast!(I) does not match template
declaration opCast(T : int)()
Error: template instance opCast!(B) does not match template
declaration opCast(T : int)()
Is this per spec? (Actually, where is the spec? (Trick
question. ;) )
There is a workaround: Add a catch-all opCast that forwards to
the all-powerful std.conv.to:
T opCast(T)()
{
import std.conv;
return this.to!T;
}
Now it compiles and works as expected.
However, the question remains...
Thank you,
Ali
There is also another trick: generally when something cannot be
cast then it's often possible to cast it as a pointer to the cast
type that is directly derefered. And it work...
---
T opCast(T)()
{
static if(is(T==int))
return i;
else
return *cast(T*) this;
}
---
...ed until version 2.067 (now it's deprecated because of this
since this is already a ptr).
Re: static alias this
Another try
E)---
struct StaticRegister {
static private uint _value;
@property static uint value() { return _value; }
@property static void value(uint v) { _value = v; }
static uint opCall(){return _value;}
alias _value this;
}
void main(string[] s) {
StaticRegister = 1;
assert(StaticRegister()==1);
}
Yes you're right, it's a bit strange that the writer works...does
the expression 'static this' make sense ?!
Re: D, windows developement, frustration and fish
On Sunday, 1 February 2015 at 11:37:46 UTC, Vladimir Panteleev wrote: On Sunday, 1 February 2015 at 11:28:51 UTC, jkpl wrote: Shouldn't you compile with the following cmds ? dmd.exe test.d wininet.lib wininet.di -Ipath_to_di_file wininet.lib is unnecessary because wininet.d has `pragma(lib, wininet);`. wininet.di is unnecessary because it does not contain any code, only declarations - an import inside test.d is sufficient. (This may not be true if you pull in .init of struct types, for example) okay but the -Ipath is still missing, wouldn't be a bit the reason why dmd complains about undefined symbols ?
Re: D, windows developement, frustration and fish
On Sunday, 1 February 2015 at 09:42:49 UTC, ketmar wrote: today i was in need of a little utility that must download the file using wininet.dll. nothing fancy, just send a request and receive the contents. no, curl was not a choice. and -- oh, well, wininet is a dll which any windows box has, right? at least any windows box with XP and higher, which is ok. allright, i know that winapi bindings is a separate project, and it's ok for me: i fired my git and cloned the repo. surely, wininet.d was there. then i used my shiny fresh DMD build (i just did that to check my fix for read after free patch) to compile a simple test program. aaah! there is no wininet.lib! ok, installing msvc is a time and space consuming thing, and i know that dmc has that cool implib utility, which i can use to make the corresponding .lib file (ah, i love windows developement!). so i ran implib.exe /s wininet.lib c:\windows\system32\wininet.dll, copied the resulting wininet.lib to lib directory of dmd and tried to compile my sample: dmd.exe test.d ... /L+wininet.lib Shouldn't you compile with the following cmds ? dmd.exe test.d wininet.lib wininet.di -Ipath_to_di_file ?
Re: D, windows developement, frustration and fish
On Sunday, 1 February 2015 at 11:46:06 UTC, ketmar wrote: it's not missing, it's in sc.ini, along with other minor tweaks that aren't interesting in the context of the story itself. Ok, you should add this precision in the initial post.
Re: D in my trashbin
On Friday, 24 October 2014 at 02:42:13 UTC, frustrated wrote: Two days later and I still cant get a 'Hello World' to compile. It is far beyond me how a project can exist for so many years and still not have a straightforward installation that works out of the box. Yes.. read the forums and search google for solutions that may or may not work depending on the phases of the moon, I have to ask you: Why bother ? Why would anybody trust a compiler written by people who regard making it run out of the box an after-thought ? Sorry, actually it was a joke from me and I laught a lot while reading your answers during 3 days. The setup is just fine, although if you've started a nice think-tank about the problem... Sorry. My bad.
Re: D in my trashbin
On Saturday, 25 October 2014 at 21:24:14 UTC, Kyoji Klyden wrote: On Saturday, 25 October 2014 at 19:33:45 UTC, Jkpl wrote: On Friday, 24 October 2014 at 02:42:13 UTC, frustrated wrote: Two days later and I still cant get a 'Hello World' to compile. It is far beyond me how a project can exist for so many years and still not have a straightforward installation that works out of the box. Yes.. read the forums and search google for solutions that may or may not work depending on the phases of the moon, I have to ask you: Why bother ? Why would anybody trust a compiler written by people who regard making it run out of the box an after-thought ? Sorry, actually it was a joke from me and I laught a lot while reading your answers during 3 days. The setup is just fine, although if you've started a nice think-tank about the problem... Sorry. My bad. Regardless of me believing you or not, by what means was it a joke? OP complains about technical difficulties, several people offer assistance, then you arrive claim you laughed about the whole thing and apologize. I find it hard to believe there was any humor amongst any of that, aside from the few jokes a couple people made. Just ask to Vlad. He seems to be the forum maintainer. He'll check the IP. Even if I'm not the OP, the message is clear: why the hell do you care about this ? DMD setup is fine. It works. dot.
Re: D in my trashbin
On Saturday, 25 October 2014 at 22:41:59 UTC, Kyoji Klyden wrote: On Saturday, 25 October 2014 at 22:17:35 UTC, Jkpl wrote: Just ask to Vlad. He seems to be the forum maintainer. He'll check the IP. Even if I'm not the OP, the message is clear: why the hell do you care about this ? DMD setup is fine. It works. dot. Haha, why would anyone go check your IP? Should we tell everyone who has trouble with DMD: the setup is fine. It works. dot.? It has a very reassuring ring to it. Melts my troubles away. :P Once you're ready to take on Hello World or to show us your next great skit, feel free to post in D.Learn. Initially i was just trying to solve the thing by saying: dont bother it 's a joke, you can setup dmd and compile a simple hello world. But...it seems that's some people cant accept the perfect explanation. I mean: stop being stuck on this, the OP has made an error. He won't reply. Even if now he has compiled his hello world, do you really think, in your own soul, that he will come saying it's ok now, I get it, it works fine. Seriously.
Does it make sense to add attribute to operator overload functions ?
Everything is in the Q. I ask this because those functions are
hidden behind symbols and keywords (+=, ~, in, etc.). It's not
that obvious for a user who would write a custom type.
e.g:
---
struct myType
{
@safe nothrow opIndexAssign(t1 paramValue,t2 paramIndex){}
}
---
are the attributes necessary ? Are opXXX functions handled just
like any other functs ? (traversal compat. of the attribs)
Re: Does it make sense to add attribute to operator overload functions ?
On Saturday, 25 October 2014 at 18:38:12 UTC, John Colvin wrote:
On Saturday, 25 October 2014 at 17:14:51 UTC, Jkpl wrote:
Everything is in the Q. I ask this because those functions are
hidden behind symbols and keywords (+=, ~, in, etc.). It's not
that obvious for a user who would write a custom type.
e.g:
---
struct myType
{
@safe nothrow opIndexAssign(t1 paramValue,t2 paramIndex){}
}
---
are the attributes necessary ? Are opXXX functions handled
just like any other functs ? (traversal compat. of the attribs)
In every aspect they are ordinary functions, except they each
have an additional unique way of being called (the relevant
operator syntax).
In short, yes.
Thx, A bit less confused by them now.
