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So, I need some help. I am working on a project in C++. However, I think I have somehow managed to corrupt my heap. This is based on the fact that I added an `std::string` to a class and assigning it a value from another `std::string`: ``` std::string hello = "Hello, world.\n"; /* exampleString = "Hello, world.\n" wou...
Of Memory Management, Heap Corruption, and C++
CC BY-SA 3.0
0
2008-08-11T04:52:50.800
2021-06-13T11:53:11.710
2021-06-13T11:53:11.710
5,459,839
61
[ "c++", "memory", "stack", "heap-memory" ]
7,523
2
null
7,477
80
null
Facebook does it, when you write on people's walls, but only resizes vertically. Horizontal resize strikes me as being a mess, due to word-wrap, long lines, and so on, but vertical resize seems to be pretty safe and nice. None of the Facebook-using-newbies I know have ever mentioned anything about it or been confused...
null
CC BY-SA 3.0
null
2008-08-11T04:49:33.930
2016-02-13T00:56:16.607
2016-02-13T00:56:16.607
63,550
234
null
7,540
1
7,570
null
11
2,612
Recently I have been having issues with Firefox 3 on Ubuntu Hardy Heron. I will click on a link and it will hang for a while. I don't know if its a bug in Firefox 3 or a page running too much client side JavaScript, but I would like to try and debug it a bit. So, my question is "is there a way to have some kind of p...
Some kind of task manager for JavaScript in Firefox 3?
CC BY-SA 3.0
null
2008-08-11T05:24:33.593
2021-01-09T17:19:41.030
2016-07-02T03:24:33.073
3,604,745
122
[ "javascript", "firefox", "memory", "cpu" ]
7,543
2
null
7,525
1
null
It could be heap corruption, but it's just as likely to be stack corruption. Jim's right. We really need a bit more context. Those two lines of source don't tell us much in isolation. There could be any number of things causing this (which is the real joy of C/C++). If you're comfortable posting your code, you cou...
null
CC BY-SA 2.5
null
2008-08-11T05:31:27.213
2008-08-11T05:31:27.213
null
null
872
null
7,539
1
7,561
null
63
87,868
Recently I tried understanding the use of but failed to understand properly. Is it used for rounding in `java.math.BigDecimal`. If yes why does not it round the decimal digits but even mantissa part. From API docs, I came to know that it follows the standard specified in `ANSI X3.274-1996` and `ANSI X3.274-1996/AM 1-...
Use of java.math.MathContext
CC BY-SA 4.0
0
2008-08-11T05:23:02.427
2018-08-13T14:41:31.967
2018-08-13T14:41:31.967
8,706,759
959
[ "java", "math", "bigdecimal", "mathcontext" ]
7,547
2
null
7,535
19
null
This can be done via SQL Enterprise Manager or like this: ``` ALTER DATABASE <database> SET COMPATIBILITY_LEVEL = { 80 | 90 | 100 } ``` Use 90 for 2005 compatibility. This replaces the functionality used for previous releases, the stored procedure .
null
CC BY-SA 2.5
null
2008-08-11T05:35:06.177
2008-08-11T05:44:12.353
2008-08-11T05:44:12.353
224
224
null
7,555
2
null
7,472
2
null
Here's another good resource from MSDN: [Data Binding Overview](http://msdn.microsoft.com/en-us/library/ms752347.aspx).
null
CC BY-SA 2.5
null
2008-08-11T05:51:39.093
2008-08-11T05:51:39.093
null
null
373
null
7,551
1
7,618
null
839
315,349
When designing a REST API or service are there any established best practices for dealing with security (Authentication, Authorization, Identity Management) ? When building a SOAP API you have WS-Security as a guide and much literature exists on the topic. I have found less information about securing REST endpoints. ...
Best Practices for securing a REST API / web service
CC BY-SA 2.5
0
2008-08-11T05:44:42.803
2017-12-28T16:38:45.010
2014-07-14T22:18:32.153
3,017,003
541
[ "wcf", "security", "rest", "authorization", "rest-security" ]
7,549
2
null
7,525
1
null
Your code as I can see has no errors. As has been said more context is needed. If you haven't already tried, install gdb (the gcc debugger) and compile the program with -g. This will compile in debugging symbols which gdb can use. Once you have gdb installed run it with the program (gdb <your_program>). [This](http://w...
null
CC BY-SA 4.0
null
2008-08-11T05:38:47.090
2020-06-21T19:19:55.867
2020-06-21T19:19:55.867
9,780,149
716
null
7,557
2
null
5,527
2
null
Instead of J#, I would rather prefer IKVM ([http://www.ikvm.net/](http://www.ikvm.net/)) to convert my JARs to .NET assemblies as well as access Java APIs in C#.
null
CC BY-SA 2.5
null
2008-08-11T05:56:14.730
2008-08-11T05:56:14.730
null
null
959
null
7,550
2
null
7,539
5
null
If I'm understanding you correctly, it sounds like you're expecting the MathContext to control how many digits should be kept after the decimal point. That's not what it's for. It specifies how many digits to keep, . So if you specify that you want 3 significant digits, that's all you're going to get. For example, ...
null
CC BY-SA 2.5
null
2008-08-11T05:44:00.747
2008-08-11T05:44:00.747
null
null
872
null
7,558
1
null
null
2
4,348
I am displaying a list of items using a SAP ABAP column tree model, basically a tree of folder and files, with columns. I want to load the sub-nodes of folders dynamically, so I'm using the EXPAND_NO_CHILDREN event which is firing correctly. Unfortunately, after I add the new nodes and items to the tree, the folder is ...
Column Tree Model doesn't expand node after EXPAND_NO_CHILDREN event
CC BY-SA 4.0
null
2008-08-11T06:00:22.333
2020-12-26T21:16:06.167
2020-12-26T21:16:06.167
9,150,270
null
[ "events", "treeview", "abap" ]
7,552
2
null
7,539
5
null
It's not for fun. Actually I found some online example, which stated the use of `MathContext` to round the amounts/numbers stored in BigDecimal. For example, If `MathContext` is configured to have `precision = 2` and `rounding mode = ROUND_HALF_EVEN` `BigDecimal Number = 0.5294`, is to So I thought it is a newer ...
null
CC BY-SA 3.0
null
2008-08-11T05:45:35.173
2015-12-23T10:09:10.810
2015-12-23T10:09:10.810
113,962
959
null
7,562
2
null
7,551
118
null
There are no standards for REST other than HTTP. There are established REST services out there. I suggest you take a peek at them and get a feel for how they work. For example, we borrowed a lot of ideas from Amazon's S3 REST service when developing our own. But we opted not to use the more advanced security model ba...
null
CC BY-SA 2.5
null
2008-08-11T06:07:03.680
2010-11-01T13:47:00.177
2010-11-01T13:47:00.177
72,312
758
null
7,567
2
null
7,525
1
null
> Also, I actually fixed the std::string problem. How? By replacing it with a vector, compiling, then replacing the string again. It was consistently crashing there, and that fixed even though it...couldn't. There's something nasty there, and I'm not sure what. That sounds like you really did shake a chicken at it. I...
null
CC BY-SA 2.5
null
2008-08-11T06:26:06.853
2008-08-11T06:26:06.853
null
null
872
null
7,559
2
null
7,525
1
null
The code was simply an example of where my program was failing (it was allocated on the stack, Jim). I'm not actually looking for 'what have I done wrong', but rather 'how do I diagnose what I've done wrong'. Teach a man to fish and all that. Though looking at the question, I haven't made that clear enough. Thank goodn...
null
CC BY-SA 2.5
null
2008-08-11T06:01:25.610
2008-08-11T06:16:46.217
2008-08-11T06:16:46.217
61
61
null
7,564
2
null
1,041
3
null
Why don't you use Microsoft ATL's regex library? Kenny Kerr has written a [short article](http://weblogs.asp.net/kennykerr/archive/2008/07/18/visual-c-in-short-regular-expressions.aspx) on that recently. > ATL includes a lightweight regular expression implementation. Although originally part of Visual C++, it is now...
null
CC BY-SA 3.0
null
2008-08-11T06:13:15.927
2018-03-31T23:08:29.340
2018-03-31T23:08:29.340
1,466,970
837
null
7,576
2
null
6,210
0
null
> [Adam Haile](https://stackoverflow.com/questions/6210/e-mail-notifications#6212) writes:> check out the System.Web.Mail namespace By which you mean System.Net.Mail in .Net 2.0 and above :)
null
CC BY-SA 2.5
null
2008-08-11T06:55:05.220
2008-08-11T06:55:05.220
2017-05-23T12:24:43.947
-1
952
null
7,566
2
null
7,525
7
null
Oh, if you want to know how to debug the problem, that's simple. First, get a dead chicken. Then, [start shaking it](http://c2.com/cgi/wiki?VoodooChickenCoding). Seriously, I haven't found a consistent way to track these kinds of bugs down. Because there's so many potential problems, there's not a simple checklist ...
null
CC BY-SA 2.5
null
2008-08-11T06:20:21.810
2008-08-11T06:20:21.810
null
null
872
null
7,570
2
null
7,540
9
null
It's probably the [awesome firefox3 fsync "bug"](http://shaver.off.net/diary/2008/05/25/fsyncers-and-curveballs/), which is a giant pile of fail. In summary - - - - -
null
CC BY-SA 2.5
null
2008-08-11T06:35:58.160
2008-08-11T06:35:58.160
null
null
234
null
7,573
2
null
7,525
3
null
Some places to start: If you're on windows, and using visual C++6 (I hope to god nobody still uses it these days) it's implentation of std::string is not threadsafe, and can lead to this kind of thing. [Here's an article I found which explains a lot of the common causes of memory leaks and corruption.](http://www.yol...
null
CC BY-SA 2.5
null
2008-08-11T06:49:15.777
2008-08-11T06:49:15.777
null
null
234
null
7,579
1
9,424,260
null
47
103,323
In the SSW rules to better SQL Server Database there is an example of a full database maintenance plan: [SSW](http://www.ssw.com.au/ssw/Standards/Rules/RulesToBetterSQLServerDatabases.aspx#MaintenancePlan). In the example they run both a Reorganize Index and then a Rebuild Index and then Update Statistics. Is there any...
Reorganise index vs Rebuild Index in Sql Server Maintenance plan
CC BY-SA 2.5
0
2008-08-11T07:02:46.483
2016-01-27T10:39:28.347
2014-07-13T07:26:37.220
321,731
961
[ "sql-server", "rebuild", "maintenance-plan", "reorganize" ]
7,587
2
null
6,210
0
null
How about using the new Workflow components in .NET 3.0 (and 3.5)? That is what we use in combination with templates in my current project. The templates have the basic format and the tokens are replaced with user information.
null
CC BY-SA 3.0
null
2008-08-11T07:33:18.730
2016-11-20T00:25:16.067
2016-11-20T00:25:16.067
6,392,939
null
null
7,584
2
null
7,525
1
null
Run Purify. It is a near-magical tool that will report when you are clobbering memory you shouldn't be touching, leaking memory by not freeing things, double-freeing, etc. It works at the machine code level, so you don't even have to have the source code. One of the most enjoyable vendor conference calls I was ever ...
null
CC BY-SA 2.5
null
2008-08-11T07:24:10.137
2008-08-11T07:24:10.137
null
null
116
null
7,591
2
null
7,586
0
null
The cell location is an attached property - the value belongs to the TextBlock rather than Grid. However, since the property itself belongs to Grid, you need to use either the property definition field or the provided static functions. ``` TextBlock tb = new TextBlock(); // // Locate tb in the second row, third column...
null
CC BY-SA 2.5
null
2008-08-11T07:39:44.490
2008-08-11T07:39:44.490
null
null
891
null
7,561
2
null
7,539
54
null
@jatan > Thanks for you answer. It makes sense. Can you please explain me MathContext in the context of BigDecimal#round method. There's nothing special about `BigDecimal.round()` any other `BigDecimal` method. In all cases, the `MathContext` specifies the number of significant digits and the rounding technique. B...
null
CC BY-SA 2.5
null
2008-08-11T06:06:48.483
2008-08-11T06:06:48.483
null
null
872
null
7,597
2
null
7,592
-1
null
Is there a reason you can't just send the data to a page which handles sending the mail? It is pretty easy to send an email in most languages, so unless there's a strong reason to push it to client side, I would recommend that route.
null
CC BY-SA 2.5
null
2008-08-11T07:50:53.953
2008-08-11T07:50:53.953
null
null
122
null
7,595
2
null
7,579
34
null
The reorganize and rebuild are different things. Reorganize: it's a defrag for indexes. Takes the existing index(es) and defragments the existing pages. However if the pages are not in a contiguous manner, they stays like before. Only the content of the pages are changing. Rebuild: actually it drops the index and reb...
null
CC BY-SA 3.0
null
2008-08-11T07:44:54.637
2011-08-22T07:14:07.550
2011-08-22T07:14:07.550
284,240
968
null
7,586
1
7,590
null
8
4,028
I was trying to get my head around XAML and thought that I would try writing some code. Trying to add a grid with 6 by 6 column definitions then add a text block into one of the grid cells. I don't seem to be able to reference the cell that I want. There is no method on the grid that I can add the text block too. T...
How do I generate WPF controls through code
CC BY-SA 4.0
null
2008-08-11T07:26:46.903
2019-01-20T13:54:45.643
2019-01-20T13:54:45.643
567,854
null
[ "c#", ".net", "wpf", "xaml" ]
7,590
2
null
7,586
7
null
WPF makes use of a funky thing called [attached properties](http://msdn.microsoft.com/en-us/library/ms749011.aspx). So in your XAML you might write this: ``` <TextBlock Grid.Row="0" Grid.Column="0" /> ``` And this will effectively move the TextBlock into cell (0,0) of your grid. In code this looks a little strange....
null
CC BY-SA 2.5
null
2008-08-11T07:37:24.713
2008-08-11T07:42:16.497
2008-08-11T07:42:16.497
615
615
null
7,592
1
7,643
null
19
35,074
I want to create a client side mail creator web page. I know the problems of using the mailto action in an html form (not standard, no default mail appication set on the client). But the web page isn't very important, and they don't care very much. The mail created by the mailto action has the syntax: > subject: unde...
Can I use JavaScript to create a client side email?
CC BY-SA 3.0
0
2008-08-11T07:39:51.433
2021-11-25T17:34:20.207
2012-01-31T16:20:25.940
4,714
518
[ "javascript", "email" ]
7,599
2
null
7,596
4
null
Class names should always be descriptive and self-explanatory. If you have multiple domains of responsibility for your classes then they should probably be refactored. Likewise for you packages. They should be grouped by domain of responsibility. Every domain has it's own exceptions. Generally don't sweat it until yo...
null
CC BY-SA 2.5
null
2008-08-11T08:00:58.830
2008-08-11T08:00:58.830
null
null
342
null
7,593
2
null
7,586
0
null
Use attached properties of the Grid class. in C#: ``` Grid.SetRow( cell, rownumber ) ``` In XAML: ``` <TextBlock Grid.Row="1" /> ``` Also, I would advice if you do not use dynamic grids, use the XAML markup language. I know, it has a learning curve, but once you mastered it, it is so much easier, especially ...
null
CC BY-SA 2.5
null
2008-08-11T07:39:52.757
2008-08-11T07:54:26.347
2008-08-11T07:54:26.347
900
900
null
7,607
2
null
4,246
3
null
Another possibility is to use DTS or Integration Services (DTS for SQL Server 7 or 2000, SSIS for 2005 or higher). Both are from Microsoft, included in the Sql Server installation (in Standard edition at least) and have an FTP task and are designed for import/export jobs from Sql Server.
null
CC BY-SA 2.5
null
2008-08-11T08:17:19.750
2008-08-11T08:17:19.750
null
null
961
null
7,603
1
null
null
5
7,802
Can anyone point me to some decent introductions to WS-Security? I'm looking for tutorials or something that provide a fairly gentle introduction to the subject, though I don't mind if it assumes basic knowledge of web services and SOAP. Most of the stuff I've seen so far is very technical and you need a lot of comple...
Where can I find some good WS-Security introductions and tutorials?
CC BY-SA 2.5
0
2008-08-11T08:10:27.423
2009-05-13T03:22:13.120
2008-08-23T19:16:17.463
2,134
886
[ "web-services", "ws-security" ]
7,596
1
13,283
null
42
24,538
First of all, I know how to build a Java application. But I have always been puzzled about where to put my classes. There are proponents for organizing the packages in a strictly domain oriented fashion, others separate by tier. I myself have always had problems with - - So, 1. Where do you put your domain speci...
How should I structure a Java application, where do I put my classes?
CC BY-SA 3.0
0
2008-08-11T07:45:20.050
2018-10-16T17:11:27.253
2017-11-02T22:11:28.507
6,074,376
917
[ "java", "architecture" ]
7,608
2
null
7,603
3
null
I think the best introduction to the (any) subject are some good examples. [This article](http://www.codeproject.com/KB/webservices/WS-Security.aspx) at codeProject gives a fairly easy to follow guide trough web service security for a .NET application.
null
CC BY-SA 2.5
null
2008-08-11T08:20:01.007
2008-08-11T08:20:01.007
null
null
46
null
7,611
2
null
1,041
6
null
I would second the recommendation for [PCRE](http://pcre.org). I have used it in C++ projects in Windows and it works great. It's free, even for building commercial software. It also implements something of a de facto standard regular expression language, which will be welcome to your users. PCRE is of course Perl-comp...
null
CC BY-SA 2.5
null
2008-08-11T08:25:13.337
2008-09-20T07:27:23.973
null
null
893
null
7,613
2
null
7,525
1
null
One of the debugging techniques that I use frequently (except in cases of the most extreme weirdness) is to divide and conquer. If your program currently fails with some specific error, then divide it in half in some way and see if it still has the same error. Obviously the trick is to decide where to divide your progr...
null
CC BY-SA 2.5
null
2008-08-11T08:34:56.407
2008-08-11T08:34:56.407
null
null
893
null
7,616
2
null
7,231
0
null
Thanks for the answer, great! I did some research myself and found [ListNanny](http://www.advancedintellect.com/product.aspx?listnanny) - also super simple to use and tells you the type of bounce. Will write some proof of concept and see which one I like better...
null
CC BY-SA 2.5
null
2008-08-11T08:43:18.963
2008-08-11T08:43:18.963
null
null
925
null
7,617
2
null
5,667
0
null
Then you'll have to warp CURRENT in another function that you'll call from the first (but this is a hack on the previous hack ...).
null
CC BY-SA 2.5
null
2008-08-11T08:43:31.583
2008-08-11T08:43:31.583
null
null
927
null
7,618
2
null
7,551
303
null
As tweakt said, Amazon S3 is a good model to work with. Their request signatures do have some features (such as incorporating a timestamp) that help guard against both accidental and malicious request replaying. The nice thing about HTTP Basic is that virtually all HTTP libraries support it. You will, of course, need ...
null
CC BY-SA 2.5
null
2008-08-11T08:45:13.343
2008-08-11T08:45:13.343
null
null
893
null
7,619
2
null
7,592
4
null
With javascript alone, it's . Javascript is not intended to do such things and is severely crippled in the way it can interact with anything other than the webbrowser it lives in, (for good reason!). Think about it: a spammer writing a website with client side javascript which will automatically mail to thousands of...
null
CC BY-SA 2.5
null
2008-08-11T08:48:39.017
2008-08-11T08:48:39.017
null
null
46
null
7,610
2
null
7,596
3
null
Use packages to group related functionality together. Usually the top of your package tree is your domain name reversed (`com.domain.subdomain`) to guarantee uniqueness, and then usually there will be a package for your application. Then subdivide that by related area, so your `FileStorageStrategy` might go in, say, `...
null
CC BY-SA 2.5
null
2008-08-11T08:24:02.950
2008-08-11T08:24:02.950
null
null
588
null
7,614
1
null
null
1
987
What is the best way of testing a function that throws on failure? Or testing a function that is fairly immune to failure? For instance; I have a `I/O Completion Port` class that throws in the constructor if it can't initialise the port correctly. This uses the `Win32` function of `CreateIoCompletionPort` in the initi...
Testing a function that throws on failure
CC BY-SA 3.0
null
2008-08-11T08:36:39.460
2020-05-14T05:36:22.617
2018-03-13T17:20:41.433
1,936,366
342
[ "c++", "unit-testing", "tdd" ]
7,612
2
null
7,592
6
null
You more or less only have two alternatives when sending mail via the browser.. 1. make a page that takes user input, and allows them to send the mail via your web-server. You need some kind of server-side scripting for this. 2. use a mailto: link to trigger opening of the users registered mail client. This has the o...
null
CC BY-SA 2.5
null
2008-08-11T08:29:27.650
2008-08-11T09:26:08.177
2008-08-11T09:26:08.177
1
960
null
7,626
2
null
7,614
1
null
You should consider writing your code in such a way that you can mock your I/O completion port. Make an interface/abstract class that exposes the methods you need on the I/O object, and write and test implementation that does things like it's supposed to (and an option to simulate failure perhaps). AFAIK it's a common...
null
CC BY-SA 2.5
null
2008-08-11T08:57:54.270
2008-08-11T08:57:54.270
null
null
909
null
7,624
2
null
7,614
2
null
It is definitely worthwhile to test failure conditions, both that your class properly throws an exception when you want it to and that exceptions are handled properly in the class. This can easily be done if you are acting on an object passed in to the constructor... just pass in a mock. If not, I tend to prefer to h...
null
CC BY-SA 2.5
null
2008-08-11T08:57:26.097
2008-08-11T09:01:06.697
2008-08-11T09:01:06.697
122
122
null
7,635
2
null
7,579
8
null
Exactly what [Biri](https://stackoverflow.com/questions/7579/reorganise-index-vs-rebuild-index-in-sql-server-maintenance-plan?sort=Votes#7595) said. Here is how I would reindex an entire database: ``` EXEC [sp_MSforeachtable] @command1="RAISERROR('DBCC DBREINDEX(''?'') ...',10,1) WITH NOWAIT DBCC DBREINDEX('?')" ```
null
CC BY-SA 2.5
null
2008-08-11T09:17:41.640
2008-08-11T09:17:41.640
2017-05-23T11:54:15.770
-1
383
null
7,622
1
7,636
null
173
291,020
In C, are the shift operators (`<<`, `>>`) arithmetic or logical?
Are the shift operators (<<, >>) arithmetic or logical in C?
CC BY-SA 3.0
0
2008-08-11T08:55:13.277
2018-03-09T17:35:51.247
2016-08-09T16:02:20.580
895,245
973
[ "c", "binary", "bit-manipulation", "bit-shift" ]
7,632
2
null
7,622
184
null
When shifting left, there is no difference between arithmetic and logical shift. When shifting right, the type of shift depends on the type of the value being shifted. (As background for those readers unfamiliar with the difference, a "logical" right shift by 1 bit shifts all the bits to the right and fills in the lef...
null
CC BY-SA 2.5
null
2008-08-11T09:16:34.607
2008-08-11T09:16:34.607
null
null
893
null
7,636
2
null
7,622
116
null
According to [K&R 2nd edition](https://rads.stackoverflow.com/amzn/click/com/0131103628) the results are implementation-dependent for right shifts of signed values. [Wikipedia](http://en.wikipedia.org/wiki/Arithmetic_shift) says that C/C++ 'usually' implements an arithmetic shift on signed values. Basically you need ...
null
CC BY-SA 3.0
null
2008-08-11T09:18:29.533
2016-10-09T17:43:54.990
2016-10-09T17:43:54.990
6,772,989
193
null
7,637
2
null
7,622
5
null
Well, I looked [it up on wikipedia](http://en.wikipedia.org/wiki/Logical_shift), and they have this to say: > C, however, has only one right shift operator, >>. Many C compilers choose which right shift to perform depending on what type of integer is being shifted; often signed integers are shifted using the...
null
CC BY-SA 2.5
null
2008-08-11T09:18:52.247
2008-08-11T09:18:52.247
null
null
122
null
7,641
2
null
2,046
18
null
Look into DB Unit. It is a Java library, but there must be a C# equivalent. It lets you prepare the database with a set of data so that you know what is in the database, then you can interface with DB Unit to see what is in the database. It can run against many database systems, so you can use your actual database s...
null
CC BY-SA 2.5
null
2008-08-11T09:40:44.607
2008-08-11T09:40:44.607
null
null
122
null
7,639
2
null
7,614
3
null
If you are doing this in .NET, there is an ExpectedException attribute that you can add to your test: ``` [Test, ExpectedException(typeof(SpecificException), "Exception's specific message")] public void TestWhichHasException() { CallMethodThatThrowsSpecificException(); } ``` Test will pass if the exception of th...
null
CC BY-SA 2.5
null
2008-08-11T09:30:32.643
2008-08-11T09:30:32.643
null
null
372
null
7,642
1
7,644
null
23
13,497
Is there an official convention for naming private fields in VB.NET? For example, if I have a property called 'Foo', I normally call the private field '_Foo'. This seems to be frowned upon in the [Offical Guidelines](http://msdn.microsoft.com/en-us/library/ms229012.aspx): "Do not use a prefix for field names. For ex...
Naming convention for VB.NET private fields
CC BY-SA 2.5
0
2008-08-11T09:41:11.373
2021-03-13T07:08:58.023
null
null
133
[ "vb.net", "convention" ]
7,647
2
null
7,642
2
null
I don't think there is an official naming convention, but i've seen that Microsoft use m_ in the Microsoft.VisualBasic dll (via reflector).
null
CC BY-SA 2.5
null
2008-08-11T09:48:17.100
2008-08-11T09:48:17.100
null
null
961
null
7,646
2
null
7,642
3
null
Official guidelines are just that -- guidelines. You can always go around them. That being said we usually prefix fields with an underscore in C# and VB.NET. This convention is quite common (and obviously, the Official Guidelines ignored). Private fields can then be referenced without the "me" keyword (the "this" key...
null
CC BY-SA 2.5
null
2008-08-11T09:46:46.480
2008-08-11T09:46:46.480
null
null
372
null
7,644
2
null
7,642
21
null
I still use the _ prefix in VB for private fields, so I'll have _foo as the private field and Foo as the property. I do this for c# as well and pretty much any code I write. Generally I wouldn't get too caught up in "what is the right way to do it" because there isn't really a "right" way (altho there are some very bad...
null
CC BY-SA 2.5
null
2008-08-11T09:45:27.967
2008-08-11T09:45:27.967
null
null
493
null
7,643
2
null
7,592
18
null
What we used in a projet is a popup window that opens a mailto: link, it is the only way we found to compose a mail within the default mail client that works with all mail clients (at least all our clients used). ``` var addresses = "";//between the speech mark goes the receptient. Seperate addresses with a ; var body...
null
CC BY-SA 3.0
null
2008-08-11T09:45:17.873
2011-10-11T19:32:54.403
2011-10-11T19:32:54.403
-1
268
null
7,650
2
null
1,241
4
null
Check out [asio](http://tenermerx.com/Asio/). It is a cross compatable c++ library for asyncronous IO. I am not sure if this would be useful for the server ( I have never tried to link a standard c++ DLL to a c# project) but for the client it would be useful. We use it with our application, and it solved most of our I...
null
CC BY-SA 2.5
null
2008-08-11T10:00:06.437
2008-08-11T10:00:06.437
null
null
716
null
7,656
2
null
7,652
0
null
First of all. Getting linq itself to work on 2.0 is out of the question. Its possible, but really not something to do outside a testing environment. The closest you can get in terms of the ORM/Dynamic Querying part of it, is imho SubSonic, which I'll recommend for anyone stuck in C# 2.0
null
CC BY-SA 2.5
null
2008-08-11T10:15:49.933
2008-08-11T10:15:49.933
null
null
960
null
7,653
2
null
7,652
0
null
There's a way to reference LINQ in the .NET 2.0 Framework, but I have to warn you that it be against the terms of use/EULA of the framework: [LINQ on the .NET 2.0 Runtime](https://stackoverflow.com/questions/2138/linq-on-the-net-20-runtime#2146)
null
CC BY-SA 2.5
null
2008-08-11T10:09:27.153
2008-08-11T10:09:27.153
2017-05-23T11:54:01.217
-1
372
null
7,651
1
7,657
null
171
236,540
I have an array in Perl: ``` my @my_array = ("one","two","three","two","three"); ``` How do I remove the duplicates from the array?
How do I remove duplicate items from an array in Perl?
CC BY-SA 3.0
0
2008-08-11T10:04:32.093
2021-12-03T18:42:20.533
2014-12-25T19:57:31.240
223,226
381
[ "perl", "arrays", "unique", "duplicates" ]
7,658
2
null
7,651
24
null
My usual way of doing this is: ``` my %unique = (); foreach my $item (@myarray) { $unique{$item} ++; } my @myuniquearray = keys %unique; ``` If you use a hash and add the items to the hash. You also have the bonus of knowing how many times each item appears in the list.
null
CC BY-SA 3.0
null
2008-08-11T10:18:45.090
2014-07-20T16:35:58.380
2014-07-20T16:35:58.380
257,635
274
null
7,652
1
7,710
null
3
1,641
I have a project that I'm currently working on but it currently only supports the .net framework 2.0. I love linq, but because of the framework version I can't use it. What I want isn't so much the ORM side of things, but the "queryability" (is that even a word?) of Linq. So far the closest is [llblgen](http://www.ll...
Querying like Linq when you don't have Linq
CC BY-SA 3.0
null
2008-08-11T10:04:50.483
2018-04-05T20:59:11.340
2018-04-05T20:59:11.340
9,132,049
493
[ "database", "linq", "orm" ]
7,657
2
null
7,651
177
null
You can do something like this as demonstrated in [perlfaq4](http://perldoc.perl.org/perlfaq4.html#How-can-I-remove-duplicate-elements-from-a-list-or-array%3f): ``` sub uniq { my %seen; grep !$seen{$_}++, @_; } my @array = qw(one two three two three); my @filtered = uniq(@array); print "@filtered\n"; ``` O...
null
CC BY-SA 3.0
null
2008-08-11T10:16:22.770
2014-06-21T01:39:29.480
2014-06-21T01:39:29.480
1,733,163
893
null
7,663
2
null
7,662
53
null
1. No. A table should be named after the entity it represents. Person, not persons is how you would refer to whoever one of the records represents. 2. Again, same thing. The column FirstName really should not be called FirstNames. It all depends on what you want to represent with the column. 3. NO. 4. Yes. Case it for...
null
CC BY-SA 3.0
null
2008-08-11T10:35:10.643
2017-01-20T22:10:16.410
2017-01-20T22:10:16.410
428,241
960
null
7,662
1
7,724
null
899
675,952
Whenever I design a database, I always wonder if there is a best way of naming an item in my database. Quite often I ask myself the following questions: 1. Should table names be plural? 2. Should column names be singular? 3. Should I prefix tables or columns? 4. Should I use any case in naming items? Are there any...
Database, Table and Column Naming Conventions?
CC BY-SA 2.5
0
2008-08-11T10:27:22.780
2021-01-11T18:16:04.257
2011-09-29T14:40:48.863
27,637
383
[ "database", "database-design", "language-agnostic", "naming-conventions" ]
7,661
1
32,551
null
10
23,110
Searching for some sample code for converting a point in WGS84 coordinate system to a map position in Google Maps (pixel position), also supporting zoom levels. If the codes is well commented, then it can also be in some other language. You can also point me to a open source Java project :) Some resources found: [...
Java code for WGS84 to Google map position and back
CC BY-SA 3.0
0
2008-08-11T10:23:48.763
2020-06-23T07:38:34.270
2016-06-13T10:14:14.240
706
706
[ "java", "google-maps", "mapping", "wgs84" ]
7,668
2
null
7,661
0
null
Someone took the javascript code from Google Maps and ported it to python: [gmerc.py](http://code.google.com/p/gheat/source/browse/trunk/__/lib/python/gmerc.py) I've used this and it works great.
null
CC BY-SA 2.5
null
2008-08-11T10:58:11.080
2008-08-11T10:58:11.080
null
null
309,844
null
7,667
2
null
7,662
108
null
Ok, since we're weighing in with opinion: I believe that table names should be plural. Tables are a collection (a table) of entities. Each row represents a single entity, and the table represents the collection. So I would call a table of Person entities People (or Persons, whatever takes your fancy). For those who l...
null
CC BY-SA 2.5
null
2008-08-11T10:49:03.687
2010-01-22T16:14:04.117
2010-01-22T16:14:04.117
1,450
615
null
7,665
1
7,666
null
254
208,125
Given an absolute or relative path (in a Unix-like system), I would like to determine the full path of the target after resolving any intermediate symlinks. Bonus points for also resolving ~username notation at the same time. If the target is a directory, it might be possible to chdir() into the directory and then cal...
How to resolve symbolic links in a shell script
CC BY-SA 2.5
0
2008-08-11T10:40:41.363
2022-08-15T11:37:23.650
2009-07-29T04:29:32.837
893
893
[ "bash", "shell", "scripting", "symlink" ]
7,666
2
null
7,665
100
null
According to the standards, `pwd -P` should return the path with symlinks resolved. C function `char *getcwd(char *buf, size_t size)` from `unistd.h` should have the same behaviour. [getcwd](http://www.opengroup.org/onlinepubs/009695399/functions/getcwd.html) [pwd](http://www.opengroup.org/onlinepubs/009695399/utilit...
null
CC BY-SA 3.0
null
2008-08-11T10:48:19.260
2015-10-21T18:41:11.687
2015-10-21T18:41:11.687
45,375
964
null
7,672
2
null
7,662
11
null
I think the best answer to each of those questions would be given by you and your team. It's far more important to have a naming convention then how exactly the naming convention is. As there's no right answer to that, you should take some time (but not too much) and choose your own conventions and - the important p...
null
CC BY-SA 2.5
null
2008-08-11T11:14:11.937
2008-08-11T11:14:11.937
null
null
431
null
7,676
1
null
null
2
1,160
Can it be done and if so, how?
Replicating between SQL Server 2005 and SQL Server Compact Edition
CC BY-SA 3.0
null
2008-08-11T11:23:05.490
2020-06-23T11:21:32.017
2012-02-15T07:40:11.050
13,302
230
[ "sql-server" ]
7,669
2
null
7,664
6
null
You can use a similar technique on Windows, you just need to use different words for the same concepts. :) This article: [http://msdn.microsoft.com/en-us/library/ms682499.aspx](http://msdn.microsoft.com/en-us/library/ms682499.aspx) uses a win32 pipe to handle I/O from another process, you just have to do the same thing...
null
CC BY-SA 2.5
null
2008-08-11T11:05:37.820
2008-08-11T11:05:37.820
null
null
893
null
7,673
2
null
7,665
3
null
Common shell scripts often have to find their "home" directory even if they are invoked as a symlink. The script thus have to find their "real" position from just $0. ``` cat `mvn` ``` on my system prints a script containing the following, which should be a good hint at what you need. ``` if [ -z "$M2_HOME" ] ; the...
null
CC BY-SA 2.5
null
2008-08-11T11:17:23.803
2008-08-11T11:17:23.803
null
null
972
null
7,674
1
8,982
null
5
2,202
We have a custom-built Flash-based video player that I maintain, and it needs to support preroll ads and ideally both progressive video playback and streaming depending on a server switch. I've been working with the flvPlayback component but am finding myself a little out of my depth. Are there any good tutorials or r...
Best practices for building Flash video player
CC BY-SA 2.5
null
2008-08-11T11:17:36.547
2010-11-22T18:45:46.653
2010-11-22T18:45:46.653
137
137
[ "flash", "video" ]
7,677
2
null
7,662
11
null
1. Definitely keep table names singular, person not people Same here No. I've seen some terrible prefixes, going so far as to state what were dealing with is a table (tbl_) or a user store procedure (usp_). This followed by the database name... Don't do it! Yes. I tend to PascalCase all my table names
null
CC BY-SA 3.0
null
2008-08-11T11:24:50.823
2011-06-20T20:04:25.770
2011-06-20T20:04:25.770
57,611
977
null
7,682
2
null
7,664
3
null
You have to remember that what MSVCRT calls "OS handles" are not Win32 handles, but another layer of handles added just to confuse you. MSVCRT tries to emulate the Unix handle numbers where `stdin` = 0, `stdout` = 1, `stderr` = 2 and so on. Win32 handles are numbered differently and their values always happen to be a m...
null
CC BY-SA 3.0
null
2008-08-11T11:39:21.853
2015-12-21T15:24:01.357
2015-12-21T15:24:01.357
5,348,281
893
null
7,679
2
null
7,661
3
null
[GeoTools](http://web.archive.org/web/20090810085708/http://geotools.codehaus.org:80/) has code to transform to and from about any coordinate system you could imagine, and among them also Google Map's. It's also open source. However, it should also be pointed out that GeoTools is a library, so if you're looking someth...
null
CC BY-SA 4.0
null
2008-08-11T11:29:18.113
2020-06-23T07:38:34.270
2020-06-23T07:38:34.270
9,780,149
890
null
7,681
1
7,688
null
10
2,399
What is the best way to verify/test that a text string is serialized to a byte array with a certain encoding? In my case, I want to verify that an XML structure is serialized to a byte array with the UTF-8 encoding which is of variable character length. As an example, my current ugly procedure is to inject a character...
Test serialization encoding
CC BY-SA 2.5
null
2008-08-11T11:33:01.930
2013-01-09T05:53:18.357
null
null
972
[ "java", "xml", "string", "serialization", "encoding" ]
7,685
1
null
null
54
94,080
I was recently brushing up on some fundamentals and found merge sorting a linked list to be a pretty good challenge. If you have a good implementation then show it off here.
Merge Sort a Linked List
CC BY-SA 2.5
0
2008-08-11T11:43:27.230
2022-03-11T21:43:48.097
2012-04-10T15:44:38.583
1,630
608
[ "algorithm", "sorting", "linked-list", "mergesort" ]
7,688
2
null
7,681
2
null
Perhaps you could deserialise the byte array using a known encoding and ensure that (a) it doesn't throw any exceptions, and (b) deserialises to the original string. It seems that from your description of the scenario, you may not have the original string readily available. Might there be a way to create it?
null
CC BY-SA 2.5
null
2008-08-11T11:46:40.030
2008-08-11T11:46:40.030
null
null
893
null
7,678
2
null
7,662
16
null
My opinions on these are: 1) No, table names should be singular. While it appears to make sense for the simple selection (`select * from Orders`) it makes less sense for the OO equivalent (`Orders x = new Orders`). A table in a DB is really the set of that entity, it makes more sense once you're using set-logic: ``...
null
CC BY-SA 2.5
null
2008-08-11T11:27:56.230
2012-04-12T10:30:28.433
2012-04-12T10:30:28.433
905
905
null
7,687
2
null
7,662
-4
null
``` --Example SQL CREATE TABLE D001_Students ( StudentID INTEGER CONSTRAINT nnD001_STID NOT NULL, ChristianName NVARCHAR(255) CONSTRAINT nnD001_CHNA NOT NULL, Surname NVARCHAR(255) CONSTRAINT nnD001_SURN NOT NULL, CONSTRAINT pkD001 PRIMARY KEY(StudentID) ); CREATE INDEX idxD001_STID on D001_Students; ...
null
CC BY-SA 2.5
null
2008-08-11T11:46:05.617
2008-08-11T11:46:05.617
null
null
978
null
7,696
2
null
7,676
2
null
You can use Merge Replication. Theres a tutorial here [SQL Server Compact 3.5 How-to Tutorials](http://msdn.microsoft.com/en-us/sqlserver/bb219480.aspx) (Number 5).
null
CC BY-SA 2.5
null
2008-08-11T11:59:47.553
2008-08-11T11:59:47.553
null
null
961
null
7,697
2
null
7,694
4
null
MSDTC must be enabled on both systems, both server and client. Also, make sure that there isn't a firewall between the systems that blocks RPC. [DTCTest](http://www.sqldev.net/misc/DTCTest.htm) is a nice litt app that helps you to troubleshoot any other problems.
null
CC BY-SA 2.5
null
2008-08-11T12:04:11.523
2008-08-11T12:04:11.523
null
null
960
null
7,698
2
null
7,681
0
null
That's good. You're right, I don't have the original string, since I'm testing a module that creates an XML document as a byte array. I didn't think about deserializing to a String with an expected encoding. That will do the trick.
null
CC BY-SA 3.0
null
2008-08-11T12:05:03.427
2013-01-09T05:53:18.357
2013-01-09T05:53:18.357
1,471,203
972
null
7,700
2
null
1,584
1
null
Remote shell doesn't solve the productivity issue. (It merely makes things possible.) From what I've heard, everything that the future Microsoft GUI:s do will be possible to do with powershell since the GUI:s use the same API:s as those that are available from powershell. Personally, I love cygwin but cygwin can not ...
null
CC BY-SA 2.5
null
2008-08-11T12:09:04.867
2008-11-03T18:15:19.357
2008-08-21T19:48:50.270
972
972
null
7,694
1
27,263,904
null
115
256,795
Is this even a valid question? I have a .NET Windows app that is using MSTDC and it is throwing an exception: > System.Transactions.TransactionManagerCommunicationException: Network access for Distributed Transaction Manager (MSDTC) has been disabled. Please enable DTC for network access in the security configuratio...
How do I enable MSDTC on SQL Server?
CC BY-SA 3.0
0
2008-08-11T11:57:17.480
2022-01-18T15:44:15.970
2015-08-05T23:11:53.143
109,702
230
[ "sql-server", "msdtc" ]
7,664
1
7,669
null
6
11,689
I am wrapping existing C++ code from a project in our own custom wrapper and I want to integrate it to our code with as few changes as possible. This code uses `fprintf` to print to in order to log / report errors. I want to redirect this to an alternative place within the same process. On I have done this with a `...
Windows C++: How can I redirect stderr for calls to fprintf?
CC BY-SA 3.0
0
2008-08-11T10:38:51.570
2018-03-13T17:20:09.077
2018-03-13T17:20:09.077
1,936,366
912
[ "c++", "windows", "redirect" ]
7,701
2
null
7,694
104
null
Do you even need MSDTC? The escalation you're experiencing is often caused by creating multiple connections within a single TransactionScope. If you do need it then you need to enable it as outlined in the error message. On XP: - - - -
null
CC BY-SA 2.5
null
2008-08-11T12:10:05.363
2008-08-11T12:10:05.363
null
null
608
null
7,713
2
null
3,088
1
null
Copy some simple code line by line and get them to read and interpret it as they go along. They will soon work it out. I started programming on an Acorn Electron with snippets of code from Acorn magazines. I had no idea about programming when I was 6, I used to copy the text, but gradually I learnt what the different w...
null
CC BY-SA 2.5
null
2008-08-11T12:23:24.247
2008-08-11T12:23:24.247
null
null
986
null
7,712
2
null
2,588
1
null
If you're looking for high performance, you are going to want to avoid paging completely, so the page file size becomes less significant. Invest in as much RAM as feasible for the DB server.
null
CC BY-SA 2.5
null
2008-08-11T12:22:31.097
2008-08-11T12:22:31.097
null
null
729
null
7,710
2
null
7,652
5
null
Have a look at this: [http://www.albahari.com/nutshell/linqbridge.html](http://www.albahari.com/nutshell/linqbridge.html) Linq is several different things, and I'm not 100% sure which bits you want, but the above might be useful in some way. If you don't already have a book on Linq (I guess you don't), then I found ...
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2008-08-11T12:20:36.327
2008-08-11T12:20:36.327
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I would recommend in first teaching the very basics that are used in almost every language, but doing so without a language. Outline all the basic concepts If-Else If-Else, Loops, Classes, Variable Types, Structures, etc. Everything that is the foundation of most languages. Then move onto really understanding Boolean, ...
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2008-08-11T12:30:33.997
2008-08-11T12:30:33.997
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If I understand you correctly, the idea is to get a different "singleton" object for each caller object or "context". One thing you can do is to create a thread-local global variable where you write the ID of the current context. (This can be done with AOP.) Then in the singleton getter, the context ID is fetched from ...
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2008-08-11T12:32:02.480
2008-08-11T12:32:02.480
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I have an element which may contain very big amounts of data, but I don't want it to ruin the page layout, so I set `max-height: 100px` and `overflow:auto`, hoping for scrollbars to appear when the content does not fit. It all works fine in Firefox and IE7, but IE8 behaves as if `overflow:hidden` was present instead ...
IE8 overflow:auto with max-height
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2008-08-11T12:18:02.150
2016-01-14T19:09:35.757
2014-09-03T16:54:42.593
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[ "internet-explorer-8", "overflow", "css" ]