Re: How to add time to Clock.currTime
On Saturday, 5 October 2013 at 02:42:49 UTC, Jonathan M Davis wrote: On Saturday, October 05, 2013 03:31:33 JohnnyK wrote: Wow I appreciate the quick response. Ok I have seen this before. What is the dur? Where is dur defined? Also I am confused how 300.seconds would work. How can a literal number have properties? dur is in core.time as are the aliases for each of the units: http://dlang.org/phobos/core_time.html#dur 300.seconds works thanks to UFCS (Universal Function Call Syntax). Any time that the compiler sees x.foo(args); and foo is not a member function of x, it converts it to foo(x, args); So, if there's a free function with that name which will work with those arguments, then it will be called (otherwise, you'll get an error, because there is no matching function). The parens can be dropped on 300.seconds, because the parens are optional on function calls that take no arguments. seconds is not actually a property function (it's an alias for dur!"seconds, which is not a property function either), but the fact that the parens are optional makes it so that you can use it with the same syntax that would be used for a getter property. If you want an overview of std.datetime and the time stuff in Phobos, I suggest that you read http://dlang.org/intro-to-datetime.html - Jonathan M Davis I appreciate everyone's responses and yes Jonathan that article did help. I know I looked under the article section but I must have overlooked this article.
Re: How to add time to Clock.currTime
On Friday, 4 October 2013 at 21:54:19 UTC, Brad Anderson wrote: On Friday, 4 October 2013 at 21:50:31 UTC, Brad Anderson wrote: On Friday, 4 October 2013 at 21:46:43 UTC, JohnnyK wrote: Hi All, I did search but I cannot find it anywhere. All I want to do is add 300 seconds to the output of Clock.currTime. So basically if Clock.currTime equals 2013-Oct-04 17:19:31.3338333 then I want to subtract 300 seconds from that to get the time that it was 300 seconds ago. In other languages I would convert the time value to seconds and subtract the 300 seconds then convert it back to what ever time value it was before. I don't know how to convert 300 seconds to hnsecs and I have never actually heard of hnsecs before. Anyway if someone could help I would appreciate it. auto t = Clock.currTime; t -= 300.seconds; t += 300.seconds; And just a little bit more info, another way to write this is: auto t = Clock.currTime; t -= seconds(300); t += seconds(300); The first way I wrote is just the UFCS version of that. You could also do: auto t = Clock.currTime; t -= dur!"seconds"(300); t += dur!"seconds"(300); seconds() is just an alias for the dur template with the "seconds" template argument. Wow I appreciate the quick response. Ok I have seen this before. What is the dur? Where is dur defined? Also I am confused how 300.seconds would work. How can a literal number have properties?
How to add time to Clock.currTime
Hi All, I did search but I cannot find it anywhere. All I want to do is add 300 seconds to the output of Clock.currTime. So basically if Clock.currTime equals 2013-Oct-04 17:19:31.3338333 then I want to subtract 300 seconds from that to get the time that it was 300 seconds ago. In other languages I would convert the time value to seconds and subtract the 300 seconds then convert it back to what ever time value it was before. I don't know how to convert 300 seconds to hnsecs and I have never actually heard of hnsecs before. Anyway if someone could help I would appreciate it.
request for a RSS feed of the D Forum
I could not find any posts on this and have not found a link on the site about this either. It would be nice if there was a RSS feed for the forum at least for the announce forum. It is very difficult to monitor changes and updates with so much activity just through the forum. Sorry if this is the wrong place to post this but I did not see a forum for Forum suggestions or web site suggestions.
Re: pointers, assignments, Garbage Collection Oh My?
On Wednesday, 10 July 2013 at 18:45:56 UTC, H. S. Teoh wrote:
On Wed, Jul 10, 2013 at 08:38:40PM +0200, JohnnyK wrote:
[...]
Reminds me of how Delphi (aka Pascal) strings are work. Thanks
everyone this answers some of my questions. Now what about
when the
return type of a function is a string? Is D returning the
pointer
to the string structure or is it returning the structure?
D structs are always passed by value, so it's the
length+pointer pair
that's being returned. There's no extra indirection involved
here. What
it points to stays where it is on the GC heap.
So for example:
int[] data = [1,2,3];
int[] f() {
return data;
}
void main() {
auto arr = f(); // returns copy of data's ptr+length
arr.length--; // modifies this copy
assert(arr == [1,2]);
assert(data == [1,2,3]); // data itself hasn't changed
}
Does this help?
I understand thanks for the information.
Re: pointers, assignments, Garbage Collection Oh My?
On Wednesday, 10 July 2013 at 18:22:24 UTC, Ali Çehreli wrote:
On 07/10/2013 11:10 AM, Sean Kelly wrote:
> On Jul 10, 2013, at 10:45 AM, Namespace
wrote:
>
>>> A string in D, and all arrays, is a struct looking like
this:
>>>
>>> struct Array (T)
>>> {
>>> T* ptr;
>>> size_t length;
>>> }
>>
>> I always thought it looks like this:
>>
>> struct Array(T) {
>> T* ptr;
>> size_t length, capacity;
>> }
>
> Sadly, no. The only way to determine the capacity of an
array is to query the GC.
>
And to be pedantic, length comes first:
struct Array (T)
{
size_t length;
T* ptr;
}
Which is actually property-like because assigning to length
does pretty complex stuff. So the member cannot be named as
'length':
struct Array (T)
{
size_t length_;
T* ptr;
}
Anyway... :)
Ali
Reminds me of how Delphi (aka Pascal) strings are work. Thanks
everyone this answers some of my questions. Now what about when
the return type of a function is a string? Is D returning the
pointer to the string structure or is it returning the structure?
pointers, assignments, Garbage Collection Oh My?
I hope you like the subject matter and I hope it is not too
simplistic or have been answered before.
Anyway I have a question about how the garbage collector works
in a very specific situation. When passing string type to a
function in a shared library or DLL and assigning it to a
variable of type string inside the function and returning the
internal string. Such as this.
export string mytest(string tstStr)
{
string st = tstStr;
/* abbreviated to protect the innocent but other operations
such as concatenating and deleting may be done to st before
the return
*/
return st;
}
Is the string type a pointer or is it something else? In the
line where tstStr is assigned to st does it copy the address in
tstStr to st or does it copy the value in tstStr? I am just a
bit confused about string types since I come from a C background
and C has no type like this. Also what is returned by this
function? Does this function return a pointer or the contents of
an array? If I do export this what does it do to the Garbage
Collection? Does the Garbage Collection collect tstStr or st?
Also notice the comment in the function.
Re: GitHub behind proxy servers among other questions
On Tuesday, 9 July 2013 at 08:55:29 UTC, monarch_dodra wrote: On Monday, 8 July 2013 at 19:20:46 UTC, John Colvin wrote: I don't see how it is problematic? The firewall doesn't allow a particular type of connection, so you cache the result somewhere else and then access it via something that is allowed. It's the same as downloading the zip file from github, only you're doing the "zipping" yourself, then using scp to do the download instead of http. Is it common to have ssh connections banned in the IT policy but *not* blocked by the firewall? I'm just saying that maybe the firwall is blocking that protocol on purpose? Github can very easily be seen as "File Sharing" and/or "Online Storage". The sole act of downloading/uploading anything on there is possible violations of policy. You could download viruses, or be stealing your company's code to publish it online. Even if you *can* download the zip via http, it doesn't mean you are actually allowed to. If your company's firewall doesn't block a porn site, does that means its OK to surf it? Now, most companies wouldn't really care that much about it, if you connect every now and then, no one will care. Worst case scenario, you'll get a reminder not to download/upload crap on internet. But, if you start doing all this via ssh, or other alternative routes, then you are *activelly* bypassing protections, and in particular, doing something you *know* you shouldn't be doing. That's a more serious offense. Now, do what you want. I'm just saying before going it and deploying such tools to download the files on git, please make sure you aren't violating your company's policies. I do not encourage anyone to bypass network security protections and I do encourage letting your conscious be your guide on this topic. The issue is that it is just more complicating than I think it should be to download libraries and such. Authors of helper libraries and other D related code should take their queue from dlang.org and actually have binaries that users can download and just use without the need to compile before they can use the wares. It is not a firewall issue or anything like that. It was just GIT not supporting modern proxy authorization schemes. Problem resolved but it could have been avoided all together for those of us that are not to the point of contributing to these projects and are just trying to get their feet wet without drowning first. On another note I was able to successfully compile the DWT lib and I was able to compile the snippet example programs to test DWT. I did notice for those that are interested DWT exe's are over 2MB which is really what I was wanted to find out. I will redirect DWT questions to the appropriate forum. The workaround for GIT via proxy is just not as pretty as I would have liked it. However as I posted previously I found a suitable workaround for the issue. No other discussion is needed for this issue.
Re: GitHub behind proxy servers among other questions
On Monday, 8 July 2013 at 19:37:08 UTC, JohnnyK wrote: Another thing about GitHub's Download Zip button and this process as a whole. While the Download Zip button does allow you to download the master folders with recursive directories I do find it somewhat cumbersome or should I say awkward since you have to extract these in their correct locations upon download. This is not good when you are trying to follow someones instructions on how to download, build, and install their wares. I just don't get git? Just compile the code and put a binary up there for people to use. If I want to contribute to the code base then I will I guess go through all this hassle but for those of us not smart enough to contribute and just want to use it show me the binary please. In the amount of time it is taking to get this stuff I could have made major strides at building my own. Also I don't know what this fragmented downloading is going to do in the future when I want an updated version of the software. Please remember many of us are simpletons and don't use all these fancy version control systems and just need the binary so that we can use it. I guess you could say we are your customers and not your contributors. Please everyone in the D community try and follow the KISS methodology and if you do I bet you could get many more users of your wares and not people banging their heads until they give up. Yeah I was only 2 clicks away from giving up on this whole D thing thinking it was just too darned hard to make it worth my while. Who knows I still may give up since I have not attempted to compile it yet. I think I will wait until tomorrow before I try to tackle that part of the destruction's. For now I think I have it downloaded. BTW did I mention that I really hate git and compiling other people's code just to use an edit box and button on a dialog???
Re: GitHub behind proxy servers among other questions
On Monday, 8 July 2013 at 18:34:33 UTC, Jesse Phillips wrote: On Monday, 8 July 2013 at 16:24:53 UTC, JohnnyK wrote: It would be nice if GitHUB would change their Downlaod Zip button such that it does a recursive zip to include all the subfolders. Ehhh, well that is useless. Sorry I couldn't hook you up with a solution. Thanks for all the input. I found a tool called NTLMAPS at http://ntlmaps.sourceforge.net/ which allows one to create a pass through proxy which understands NTLM proxy servers and are able to connect and forward HTTP requests and return responses so long story short I can now git clone as I need to NTLMAPS config file is pretty easy to configure with your proxy authentication information. However I did have to change the following named/value pairs. from this LM_PART:1 NT_PART:0 # Highly experimental option. See research.txt for details. # LM - 0682 # NT - 0582 # LM + NT - 0782 NTLM_FLAGS: 0682 to this LM_PART:1 NT_PART:1 # Highly experimental option. See research.txt for details. # LM - 0682 # NT - 0582 # LM + NT - 0782 NTLM_FLAGS: 0782 The proxy that I am behind was not happy until I did that. Anyway it is working now and I hope this post serves to help others with the same issue. also note that I had to use http:// in place of git:// in the git paths and in the case of DWT I had to go to every major folder and git clone them individually because for some reason git wanted to use git:// for subsequent requests. It is strange that it did not do that for the Win-Res folder just for the others. So I had to do commands like the following C:\GITClones>cd dwt C:\GITClones\dwt>git clone --recursive http://github.com/d-widget-toolkit/base.g it Cloning into 'base'... remote: Counting objects: 806, done. remote: Compressing objects: 100% (326/326), done. remote: Total 806 (delta 402), reused 803 (delta 401) Receiving objects: 100% (806/806), 310.62 KiB | 261.00 KiB/s, done. Resolving deltas: 100% (402/402), done. C:\GITClones\dwt>git clone --recursive http://github.com/d-widget-toolkit/org.ec lipse.swt.gtk.linux.x86.git Cloning into 'org.eclipse.swt.gtk.linux.x86'... remote: Counting objects: 1691, done. remote: Compressing objects: 100% (634/634), done. remote: Total 1691 (delta 951), reused 1659 (delta 944) Receiving objects: 100% (1691/1691), 1.71 MiB | 361.00 KiB/s, done. Resolving deltas: 100% (951/951), done. C:\GITClones\dwt>git clone --recursive http://github.com/d-widget-toolkit/org.ec lipse.swt.win32.win32.x86.git Cloning into 'org.eclipse.swt.win32.win32.x86'... The only other thing I wish git could do is compile it for me so that I wouldn't have too but until we have HDgit I guess I am stuck with all this command line busy work. Thanks again for every ones time.
Re: GitHub behind proxy servers among other questions
On Monday, 8 July 2013 at 03:35:03 UTC, Jesse Phillips wrote: On Monday, 8 July 2013 at 02:42:50 UTC, JohnnyK wrote: Hi all, I have searched everywhere over the Internet and I have yet to find a way to clone a project using git when my workstation is behind a company proxy. Can you guys clone your projects to a single zip file that I can download? This would be easier instead of working with some strange command-line tool that does not recognize modern networks. Honestly I just need the DWT binary with the help files so I can use the api. I have spent weeks searching for a way to download DWT to my windows workstation at work and have yet figured out how to make GIT work. Git provides a download by zip; Right side, bottom. This is what I found on getting Git to work with a proxy: http://stackoverflow.com/questions/128035/how-do-i-pull-from-a-git-repository-through-an-http-proxy I appreciate your response. I have tried these. I think the real issue is that I am not sure on the IP and port needed for the proxy here at work. The company uses WPAD in the browser and I cannot figure out what the IP and port the browser is using to connect through the proxy. If I knew that I probably could make it work. It would be nice if GitHUB would change their Downlaod Zip button such that it does a recursive zip to include all the subfolders.
GitHub behind proxy servers among other questions
Hi all, I have searched everywhere over the Internet and I have yet to find a way to clone a project using git when my workstation is behind a company proxy. Can you guys clone your projects to a single zip file that I can download? This would be easier instead of working with some strange command-line tool that does not recognize modern networks. Honestly I just need the DWT binary with the help files so I can use the api. I have spent weeks searching for a way to download DWT to my windows workstation at work and have yet figured out how to make GIT work.
