text stringlengths 0 30.5k | title stringclasses 1
value | embeddings listlengths 768 768 |
|---|---|---|
cluster for custom software I would be writing. I can not use something like Folding@home because I need constant contact with every part of the application. For example if I was running a simulation and one computer was controlling where rain was falling, and another controlling what my herbivores are doing in the sim... | [
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0.13169114291667938,
-0.05502475053071976,
-0.32916709780693054,
0.2524555921554... | |
I am working on Linux with the GCC compiler. When my C++ program crashes I would like it to automatically generate a stacktrace.
My program is being run by many different users and it also runs on Linux, Windows and Macintosh (all versions are compiled using `gcc`).
I would like my program to be able to generate a st... | [
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-0.5736814141273499,
0.24531063437461853,
0.499519407749176,
-0.3287982642650604,
0.273014456033706... | |
but I don't know how to generate the trace string. Any ideas?
For Linux and I believe Mac OS X, if you're using gcc, or any compiler that uses glibc, you can use the backtrace() functions in `execinfo.h` to print a stacktrace and exit gracefully when you get a segmentation fault. Documentation can be found [in the libc... | [
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0.5785526037216187,
-0.410914808511734,
-0.01375506725162... | |
// get void*'s for all entries on the stack
size = backtrace(array, 10);
// print out all the frames to stderr
fprintf(stderr, "Error: signal %d:\n", sig);
backtrace_symbols_fd(array, size, STDERR_FILENO);
exit(1);
}
void baz() {
int *foo = (int*)-1; // make a bad pointer
printf("%d\n", *foo); // c... | [
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-0.23823630809783936,
0.578347384929657,
-0.5789548754692078,
0.024202553555369377... | |
info in your output, which glibc can use to make a nice stacktrace:
```
$ gcc -g -rdynamic ./test.c -o test
```
Executing this gets you this output:
```
$ ./test
Error: signal 11:
./test(handler+0x19)[0x400911]
/lib64/tls/libc.so.6[0x3a9b92e380]
./test(baz+0x14)[0x400962]
./test(bar+0xe)[0x400983]
./test(foo+0xe)[0... | [
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0.03959041088819504,
0.4445832073688507,
-0.5448482036590576,
-0.111326463... | |
I am looking for an open-source project involving c++ GUI(s) working with a database. I have not done it before, and am looking for a way to get my feet wet. Which can I work on?
How about this one <http://sourceforge.net/projects/sqlitebrowser/>:
> SQLite Database browser is a light GUI editor for SQLite databases, b... | [
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0.22345253825187683,
0.3527733087539673,
-0.26599299907684326,
-0.19638453423... | |
I want to set a breakpoint on the `__DoPostBack` method, but it's a pain to find the correct file to set the breakpoint in.
The method `__DoPostBack` is contained in an auto-generated js file called something like:
```
ScriptResource.axd?d=P_lo2...
```
After a few post-backs visual studio gets littered with many o... | [
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0.0699832513928... | |
modify and edit SQLite databases using a set of wizards and a spreadsheet-like interface. | [
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-0.20372873544... | |
I would like to display multiple colors (and potentially shapes and sizes) of data points in a Google Chart scatter chart. Does anyone have an example of how to do so?
I answered my own question after waiting SECONDS for an answer here :-)
You can indeed have different colors for different data elements. For example:
... | [
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0.0952786430716514... | |
What are some suggestions for easy to use C++ compilers for a beginner? Free or open-source ones would be preferred.
GCC is a good choice for simple things.
Visual Studio Express edition is the free version of the major windows C++ compiler.
If you are on Windows I would use VS. If you are on linux you should use GCC... | [
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Do you guys keep track of stored procedures and database schema in your source control system of choice?
When you make a change (add a table, update an stored proc, how do you get the changes into source control?
We use SQL Server at work, and I've begun using darcs for versioning, but I'd be curious about general s... | [
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-0.0695320293307... | |
fancy 'sync' programs are necessary.
Schema changes are easy, all you need to do is create and maintain a single file for that version, including all schema and data changes. This becomes your conversion script from version x to x+1. You can then run it against a production backup and integrate that into your 'daily b... | [
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-0.684699535369873,
0.0110833328217267... | |
COLUMN SomeOtherID
GO
```
For stored procedures, we elect for a single file per sproc, and it uses the drop/create form. All stored procedures are recreated at deployment. The downside is that if a change was done outside source control, the change is lost. At the same time, that's true for any code, but your DBA'a n... | [
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-0.24945349991321564,
0.068281... | |
1)
drop procedure [usp_MyProc]
GO
CREATE PROCEDURE [usp_MyProc]
(
@UserID INT
)
AS
SET NOCOUNT ON
-- stored procedure logic.
SET NOCOUNT OFF
GO
```
The only thing left to do is write a utility program that collates all the individual files and creates a new file with the entire set of updates (as a single ... | [
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-0.11034929007... | |
how to source-control all sql without any special software.
addendum: Rick is correct that you will lose permissions on stored procedures with DROP/CREATE, so you may need to write another script will re-enable specific permissions. This permission script would be the last to run. Our experience found more issues with... | [
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0.02822374366223812,... | |
You've just written a pile of code to deliver some important feature under pressure. You've cut a few corners, you've mashed some code into some over-bloated classes with names like SerialIndirectionShutoffManager..
You tell your boss you're going to need a week to clean this stuff up.
"Clean what up?"
"My code - it... | [
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-0.16129140555858612,
-0.0006753097986... | |
weekend.. "
I've read Matin Fowler's book, but I'm not sure I agree with his advice on this matter:
* Encourage regular code reviews, so refactoring work is encouraged as a natural part of the development process.
* Just don't tell, you're the developer and its part of your duty.
Both these methods squirm out of the... | [
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0.46902990341186523,
-0.315268456935... | |
the deliverable deadline. It's like a surgeon doing surgery and then not making sure he put everything back the way it was supposed to be.
It is important to include all the parts of development (e.g. refactoring, usability research, testing, QA, revisions) in your original schedules. Ultimately this isn't so much a m... | [
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0.049045305699110... | |
for awhile (as they likely did), but each band-aid just delays the problem and ultimately makes the problem that much more expensive to fix.
Be honest with your boss and understand that a project isn't done until it's done. | [
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-0.295112937688827... | |
People also often ask "How can I compile Perl?" while what they really want is to create an executable that can run on machines even if they don't have Perl installed.
There are several solutions, I know of:
1. [perl2exe](http://www.indigostar.com/perl2exe.htm) of IndigoStar
It is commercial. I never tried. Its web s... | [
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0.075293950... | |
[PAR::Packer](http://search.cpan.org/dist/PAR-Packer/) that is free and open source. Based on the test reports it works on the Windows, Mac OS X, Linux, NetBSD and Solaris but theoretically it should work on other UNIX systems as well.
Recently I have started to use PAR for packaging on Linux and will use it on Windows... | [
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-0.05893707275390... | |
contenders in that it assembles all Perl dependencies in a source / lib directory instead of creating a single archive containing everything. There's a free version, but it's not Open Source. I haven't used this except for testing.
As for PAR, it's really a toolkit. It comes with a packaging tool which does the depend... | [
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0.1658714711666... | |
at [YAPC::EU](http://yapceurope.org/) 2008 go into more details on this.
There's also an active mailing list: par at perl dot org. | [
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0.0943097323179... | |
I make a lot of web applications and from time to time I need a color picker. What's one that I can use like an API and doesn't require a lot of code to plug in? I also need it to work in all browsers.
[Farbtastic](http://acko.net/dev/farbtastic) is a nice jQuery color picker
But apparently doesn't work in IE6
[Here... | [
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I'm currently running Vista and I would like to manually complete the same operations as my Windows Service. Since the Windows Service is running under the Local System Account, I would like to emulate this same behavior. Basically, I would like to run CMD.EXE under the Local System Account.
I found information online... | [
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-0.0013528703711926937,
0.3540329337120056... | |
via the Service Control (sc.exe) which merely launches CMD.exe.
```
C:\sc create RunCMDAsLSA binpath= "cmd" type=own type=interact
C:\sc start RunCMDAsLSA
```
In this case the service fails to start and results it the following error message:
```
FAILED 1053: The service did not respond to the start or control req... | [
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-0.555274486541748,
0.253970175981521... | |
each of my attempts have ended in failure. Any suggestions?
Though I haven't personally tested, I have good reason to believe that the above stated AT COMMAND solution will work for XP, 2000 and Server 2003. Per my and Bryant's testing, we've identified that the same approach does not work with Vista or Windows Server ... | [
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0.20565509796142... | |
I was running under the Local Admin Account like magic:
```
psexec -i -s cmd.exe
```
PSTools works well. It's a lightweight, well-documented set of tools which provides an appropriate solution to my problem.
Many thanks to those who offered help. | [
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Has anyone found a way to get gcc to build/install on SCO6? With 2.95 and 4.3 I get to the point where it needs to use (2.95) or find (4.3) the assembler and that's where it fails.
If anyone has figured this out I would appreciate the info!
Thanks
I have came across to the same error message. After digging for a whil... | [
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... | |
it did create an ok service interface. | [
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-0.0527930632... | |
We are developing automated regression tests using VMWare and NUnit. We have divided tests into steps and now I would like to see each step be examined for performance regression. Simply timing the tests, as NUnit does, does not seem reliable. I have figured in a acceptance factor of about 15% but our steps can differ ... | [
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-0.1354529559612... | |
simple pass/fail result. In real life, changing your system is likely to make some things faster and some other things slower, so it's usually not a choice between "better" and "not better", it's a choice between different kinds of better. (Of course, you want to avoid cases where it's strictly worse.)
What I've done ... | [
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0.31277188658714294,
0.0063960314728319645,
-0.17535410821... | |
web applet so everyone on the team can review them) and see if your performance is trending up or down, or if performance has been sucking ever since a particular revision.
The key thing here, though, is that it needs to be a *graph*. That way human eyes can look at it and find the trends. You could spend all week try... | [
0.4773293137550354,
-0.1461636871099472,
0.2958393692970276,
0.49523603916168213,
-0.1858786940574646,
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0.39687296748161316,
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0.17591913044452667,
0.33300670981407166,
-0.039148714393377304,
-0.11922513693571... | |
I thought I'd offer this softball to whomever would like to hit it out of the park. What are generics, what are the advantages of generics, why, where, how should I use them? Please keep it fairly basic. Thanks.
* Allows you to write code/use library methods which are type-safe, i.e. a List<string> is guaranteed to be ... | [
0.44965025782585144,
-0.12261427193880081,
-0.10657591372728348,
0.3410564064979553,
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0.4824284613132477,
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0.31595462560653687,
0.5853890180587769,
-0.2774530351161957,
-0.016558652743697... | |
less transparent runtime error.
* Faster than using objects as it either avoids boxing/unboxing (where .net has to convert [value types to reference types or vice-versa](https://stackoverflow.com/questions/5057267/what-is-the-difference-between-a-reference-type-and-value-type-in-c)) or casting from objects to the requi... | [
0.17153675854206085,
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-0.04773009195923805,
0.5679198503494263,
-0.2770232856273651,
-0.126797527074... | |
I really like Xml for saving data, but when does sqlite/database become the better option? eg, when the xml has more than *x* items or is greater than *y* MB?
I am coding an rss reader and I believe I made the wrong choice in using xml over a sqlite database to store a cache of *all* the feeds items. There are some fe... | [
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0.027900397777557373,
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0.14040516316890717,
0.3514569401741028,
-0.23628339171409607,
0.0740627944469451... | |
a cap because I like to be able to search through everything.
So, my questions are:
1. When is the overhead of sqlite/databases justified over using xml?
2. Are the **few large xml files** justification enough for the database when there are **a lot of small** ones, though even the small ones will grow over time? (a ... | [
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item and then set it to read/unread.
I basically agree with [Mitchel](https://stackoverflow.com/questions/77726/xml-or-sqlite-when-to-drop-xml-for-a-database#77750), that this can be highly specific depending on what are you going to do with XML and SQLite. For your case (cache), it seems to me that using SQLite (or ot... | [
0.3152131736278534,
-0.04155492037534714,
0.336978018283844,
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-0.05474056303501129,
0.002040705177... | |
SQLite over XML:**
* everything in one file,
* performance loss is lower than XML as cache gets bigger,
* you can keep feed metadata separate from cache itself (other table), but accessible in the same way,
* SQL is probably easier to work with than XPath for most people.
**Disadvantages of SQLite:**
* can be proble... | [
0.39902418851852417,
0.18211670219898224,
0.24037843942642212,
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-0.3640294075012207,
0.107045061886310... | |
standpoint (SQL injection). On the other hand, you are not coding web app, so this should not happen.
Other things are on par for both solutions probably.
To sum it up, answers to your questions respectively:
1. You will not know, unless you test your specific application with both back ends. Otherwise it's always j... | [
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0.0075072324834764,
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-0.18601259589195251,
-0.2017004489... | |
in XML would require index database anyway, in your case that would mean having cache for cache, not a particularly good idea. But with SQLite you can have indexing as part of database. | [
0.07382936775684357,
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-0.3671950399875641,
0.05278765782713... | |
At my current gig, we use iBATIS through Java to CRUD our databases. I like the abstract qualities of the tool, especially when working with legacy databases, as it doesn't impose its own syntax on you.
**I'm looking for a Python analogue to this library**, since the website only has Java/.NET/Ruby versions available.... | [
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0.00907555874... | |
SQL and some object model defined elsewhere.
SQL Alchemy can do this -- but it isn't really a very complete solution. Like iBatis, you can merely have SQL table definitions and a mapping between the tables and Python class definitions.
What's more complete is to have a class definition that is *also* the SQL databas... | [
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-0.421850323677063,
0.1788836419582367,... | |
design central and leave the SQL implementation be derived from the objects by the toolset.
I use SQLAlchemy for large, batch, stand-alone projects. DB Loads, schema conversions, DW reporting and the like work out well. In these projects, the focus is on the relational view of the data, not the object model. The SQL t... | [
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0.5336335301399231,
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0.2840315401... | |
to a specific database without using a separate settings module.
Django includes a number of common relationships (Foreign Key, Many-to-Many, One-to-One) for which it can manage the SQL implementation. It generates key and index definitions for the attached database.
If your problem is largely object-oriented, with t... | [
0.035522978752851486,
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-0.4737713634967804,
-0.019053896889090538,
0.6569843292236328,
-0.2130088061094284,
-0.22025306522... | |
How do you get Perl to stop and give a stack trace when you reference an undef value, rather than merely warning? It seems that `use strict;` isn't sufficient for this purpose.
```
use warnings FATAL => 'uninitialized';
use Carp ();
$SIG{__DIE__} = \&Carp::confess;
```
The first line makes the warning fatal. The nex... | [
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-0.17850303649902344,
0.47825708985328674,
-0.4856123626232147,
0.166607439517... | |
The Matrix in SSRS (SQL Server Reporting Services 2005) seems to have issues with certain the border styles when exporting to XLS (but not PDF or web view; maybe other formats, not sure?).
For example: Create a matrix and set the Matrix border style to Black Solid 1px, but all 4 of the cells to have a border style of ... | [
-0.010433411225676537,
-0.16216757893562317,
0.5688969492912292,
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-0.015868034213781357,
0.262681782245636,
-0.5493060946464539,
-0.05904339... | |
column. But all the cells in the middle of the report correctly have no border set.
Update:
If the Matrix borders are set to None, then the borders on the cells don't show up in XLS. So, how do you set an outer border around the Matrix, but not have it apply the 'all sides' border to every cell that touches the edge ... | [
0.0614323690533638,
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0.6372082233428955,
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0.204118549823761,
0.4097118079662323,
-0.25821200013160706,
-0.0226865354... | |
when you do this, it seems like setting the BorderStyle.Default property to Solid or None doesn't matter. The value explicitly set for the other sides overrides that Default value. | [
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0.06749771535396576,
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-0.10994336754083633,
-0.090442128479480... | |
I'm working on an embedded Linux project that interfaces an ARM9 to a hardware video encoder chip, and writes the video out to SD card or USB stick. The software architecture involves a kernel driver that reads data into a pool of buffers, and a userland app that writes the data to a file on the mounted removable devic... | [
0.23694564402103424,
0.06581039726734161,
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0.08067420870065689,
0.10462969541... | |
- and even if I could increase the number of buffers, the video data has to be synchronised (ideally within 40ms) with other things that are going on in real time. Between these 5 second "lag spikes", the writes complete well within 40ms (as far as the app is concerned - I appreciate they're buffered by the OS)
I thin... | [
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0.050821755081415176,
-0.0421953126... | |
as the stall is over the userland app is able to quickly service and write the backlog of buffers (that didn't overflow).
I think the device I'm writing to has reasonable ultimate throughput: copying a 15MB file from a memory fs and waiting for sync to complete (and the usb stick's light to stop flashing) gave me a wr... | [
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-0.0945405438542... | |
my app(s) aware of what is going on with the filesystem in terms of write backlog and throughput to the card/stick? I have the ability to change the video bitrate in the hardware codec on the fly which would be much better than dropping frames, or imposing an artificial cap on maximum allowed bitrate.
Some more info: ... | [
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0.06812325865030289,
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-0.06266986578702927,
1.0273219347000122,
-0.23704257607460022,
-0.00947866588... | |
into any Windows PC and read.
* Regularly calling sync() or fsync() say, every second causes regular stalls and unacceptably poor throughput
* I am using write() and open(O\_WRONLY | O\_CREAT | O\_TRUNC) rather than fopen() etc.
* I can't immediately find anything online about the mentioned "Linux realtime filesystems"... | [
0.19996950030326843,
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0.7213967442512512,
-0.14884960651397705,
0.1768020391464... | |
(touch wood).
The big win came from making the userland writer app multi-threaded. It is the calls to write() that block sometimes: other processes and threads still run. So long as I have a thread servicing the device driver and updating frame counts and other data to sychronise with other apps that are running, the ... | [
-0.08062267303466797,
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0.29080668091773987,
0.602631688117981,
-0.19625328481197357,
-0.08628921210... | |
pool of 10 1MB buffers queued between threads is working well now.
The other aspect is keeping an eye on ultimate write throughput to physical media. For this I am keeping an eye on the stat Dirty: reported by /proc/meminfo. I have some rough and ready code to throttle the encoder if Dirty: climbs above a certain thre... | [
0.3039957582950592,
0.1341419219970703,
0.49645304679870605,
0.10909082740545273,
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0.2404927760362625,
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0.147725909948349,
-0.202890083193779,
... | |
this answer if I find I need to do anything else to deal with this issue. Thanks to the other answerers. | [
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0.4263607859611511,
0.010063781403005123,
0.10729826986789... | |
In a C++ app, I have an hWnd pointing to a window running in a third party process. This window contains controls which extend the COM TreeView control. I am interested in obtaining the CheckState of this control.
I use the hWnd to get an HTREEITEM using TreeView\_GetRoot(hwnd) from commctrl.h
hwnd points to the wi... | [
0.01290684100240469,
0.1515744924545288,
0.4964701533317566,
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0.16216984391212463,
0.06050752475857735,
0.17015232145786285,
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0.13091784715652466,
-0.7879257798194885,
-0.35413289070129395,
0.6741420030593872,
-0.40755680203437805,
-0.1652874499559... | |
port this code into a C# app which does the same thing (switches off the CheckState of the TreeView control). I have never used COM and am quite unfamiliar.
I have tried using the .NET mscomctl but can't find equivalent methods to TreeView\_GetRoot or TreeView\_GetCheckState. I'm totally stuck and don't know how to re... | [
0.1533401906490326,
-0.1952485293149948,
0.8040089011192322,
-0.03147565573453903,
0.0700104832649231,
-0.11541319638490677,
0.6086498498916626,
-0.22677917778491974,
-0.11354333907365799,
-1.0198322534561157,
-0.17357318103313446,
0.7104241847991943,
-0.44008952379226685,
0.19054971635341... | |
hti, INDEXTOSTATEIMAGEMASK((fCheck)?2:1), TVIS_STATEIMAGEMASK)
```
We can translate this to C# using PInvoke. First, we implement these macros as functions, and then add whatever
other support is needed to make those functions work. Here is my first shot at it. You should double check my
code especially when it comes... | [
0.22278578579425812,
-0.16990698873996735,
0.544979989528656,
-0.049390073865652084,
-0.08595163375139236,
-0.1269959956407547,
0.09066257625818253,
-0.3629176914691925,
0.016972217708826065,
-0.7776177525520325,
-0.0825725570321083,
0.6721616983413696,
-0.6283409595489502,
0.0833383798599... | |
Access Violation. This would be a problem in whatever
language you use (C++ or C#), so perhaps I am wrong here (you say you have a working C++ program).
```
static class Interop {
public static IntPtr TreeView_SetCheckState(HandleRef hwndTV, IntPtr hti, bool fCheck) {
return TreeView_SetItemState(hwndTV, hti, IND... | [
-0.05391157791018486,
-0.03775344789028168,
0.6012770533561707,
0.10818003863096237,
0.2028583437204361,
-0.10857583582401276,
0.5119307637214661,
-0.2915073037147522,
-0.3816753327846527,
-0.49051228165626526,
-0.5505300164222717,
0.6834498643875122,
-0.4620334804058075,
0.312509775161743... | |
= Marshal.AllocCoTaskMem(Marshal.SizeOf(_ms_TVi));
Marshal.StructureToPtr(_ms_TVi, p, false);
IntPtr r = SendMessage(hwndTV, (int)TVM.TVM_SETITEMW, IntPtr.Zero, p);
Marshal.FreeCoTaskMem(p);
return r;
}
private static uint INDEXTOSTATEIMAGEMASK(int i) { return ((uint)(i) << 12); }
[DllImport("user32.d... | [
0.05667198449373245,
-0.28173932433128357,
0.6532567143440247,
0.10085776448249817,
0.09741147607564926,
-0.012573609128594398,
0.43404078483581543,
-0.988090991973877,
-0.36314213275909424,
-0.3923485279083252,
-0.38706114888191223,
0.6095210909843445,
-0.24788935482501984,
0.203440248966... | |
struct TVITEM {
public uint mask;
public IntPtr hItem;
public uint state;
public uint stateMask;
public IntPtr pszText;
public int cchTextMax;
public int iImage;
public int iSelectedImage;
public int cChildren;
public IntPtr lParam;
}
}
``` | [
0.17484687268733978,
-0.3633618652820587,
0.6923686265945435,
0.035273585468530655,
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-0.7074007987976074,
0.5502575635910034,
-0.569326639175415,
-0.08171182870864868... | |
In the C programming language and Pthreads as the threading library; do variables/structures that are shared between threads need to be declared as volatile? Assuming that they might be protected by a lock or not (barriers perhaps).
Does the pthread POSIX standard have any say about this, is this compiler-dependent or... | [
0.15416687726974487,
0.2093295305967331,
-0.10743702203035355,
0.2756524384021759,
0.11590280383825302,
-0.40021803975105286,
-0.17385774850845337,
-0.16545464098453522,
-0.33852723240852356,
-0.28710997104644775,
-0.15870004892349243,
0.5889378190040588,
-0.30315282940864563,
0.1519879698... | |
variable be written to memory when modified, and reread from memory each time it accessed. The other answers here mix volatile and synchronization, and it is clear from some other answers than this that volatile is NOT a sync primitive (credit where credit is due).
But unless you use volatile, the compiler is free to... | [
0.1677100658416748,
-0.015983212739229202,
0.04219996556639671,
0.2632160186767578,
-0.09699676930904388,
0.012173977680504322,
0.08072857558727264,
0.05461841821670532,
-0.0714552029967308,
-0.011550426483154297,
0.11241047829389572,
0.6817059516906738,
-0.2460482120513916,
0.214274719357... | |
it as volatile. Alternatively, if you only access the shared data after you have left a function modifying it, you might be fine. But I would suggest not relying on blind luck to make sure that values are written back from registers to memory.
Especially on register-rich machines (i.e., not x86), variables can live f... | [
-0.09390760958194733,
0.08760984241962433,
0.1194685772061348,
0.2950115203857422,
-0.08742640167474747,
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0.21904514729976654,
0.1587686389684677,
-0.2558539807796478,
-0.2878165543079376,
-0.2109861522912979,
0.6812952160835266,
-0.15884505212306976,
0.114258021116256... | |
efficiently means doing a bit of load-store thinking in your C code.
In any case, you positively have to use some kind of OS-level provided sync mechanism to create a correct program.
For an example of the weakness of volatile, see my Decker's algorithm example at <http://jakob.engbloms.se/archives/65>, which prove... | [
-0.2287628948688507,
0.22942909598350525,
0.05271263048052788,
0.28331801295280457,
-0.0005614506080746651,
-0.42956194281578064,
0.3129235804080963,
-0.18649087846279144,
-0.3019788861274719,
-0.7332212328910828,
-0.20377902686595917,
0.4954277276992798,
-0.44803041219711304,
-0.241684436... | |
If I am given a `MemoryStream` that I know has been populated with a `String`, how do I get a `String` back out?
This sample shows how to read and write a string to a MemoryStream.
---
```
Imports System.IO
Module Module1
Sub Main()
' We don't need to dispose any of the MemoryStream
' because it is a man... | [
0.07205299288034439,
-0.1415233314037323,
0.7621781229972839,
0.005115889012813568,
0.1456720232963562,
-0.2246960699558258,
0.16154025495052338,
-0.061691801995038986,
-0.12278217822313309,
-0.5959758162498474,
-0.07048039138317108,
0.7442046999931335,
-0.20448032021522522,
0.351054728031... | |
sw.WriteLine("Hello World")
' The string is currently stored in the
' StreamWriters buffer. Flushing the stream will
' force the string into the MemoryStream.
sw.Flush()
' If we dispose the StreamWriter now, it will close
' the BaseStream (which is our MemoryStream) which
'... | [
-0.049736201763153076,
-0.1981571763753891,
0.8054068088531494,
-0.2683583199977875,
0.422254741191864,
-0.22047752141952515,
0.47882771492004395,
-0.005838490556925535,
0.10792997479438782,
-0.6875043511390686,
-0.17325997352600098,
0.3115541934967041,
-0.26637592911720276,
0.369819432497... | |
' The StreamReader will read from the current
' position of the MemoryStream which is currently
' set at the end of the string we just wrote to it.
' We need to set the position to 0 in order to read
' from the beginning.
ms.Position = 0
Dim sr As New StreamReader(ms)
Dim m... | [
-0.05663815513253212,
-0.46474170684814453,
1.0235658884048462,
-0.047176115214824677,
0.11476819962263107,
0.09316373616456985,
0.30660098791122437,
0.03711681813001633,
-0.07467560470104218,
-0.5339763760566711,
-0.29632702469825745,
0.5250805020332336,
-0.08686189353466034,
0.4487369954... | |
sr.ReadToEnd()
Console.WriteLine(myStr)
' We can dispose our StreamWriter and StreamReader
' now, though this isn't necessary (they don't hold
' any resources open on their own).
sw.Dispose()
sr.Dispose()
End Using
Console.WriteLine("Press any key to continue.")
Conso... | [
-0.0812954530119896,
0.011427240446209908,
0.7223039865493774,
-0.23418711125850677,
0.32627665996551514,
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0.31158316135406494,
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0.023403409868478775,
-0.6744876503944397,
-0.4192827641963959,
0.45245853066444397,
-0.01872968301177025,
0.285177469253... | |
How would you implement a system with the following objectives:
* Manage authentication,
authorization for
**hundreds of thousands** of *existing users* currently tightly integrated with a 3rd party vendor's application (We want to bust these users out into something we manage and make our apps work against it, plus o... | [
0.48612117767333984,
-0.09177685528993607,
0.10593977570533752,
0.37287524342536926,
-0.007412956096231937,
-0.29903918504714966,
0.1500624269247055,
-0.1580188274383545,
-0.2678602933883667,
-0.6613234281539917,
-0.10854946821928024,
0.4098888039588928,
-0.3938933312892914,
-0.15037640929... | |
can authenticate against LDAP/AD and we can store all sorts of ACLs and profile data in a custom schema.
* Use LDAP/AD for authentication only, tie LDAP users to a most robust profile/authorization server using some sort of traditional database (MSSQL/PostgreSQL/MySQL) or document based DB (CouchDB, SimpleDB, et cetera... | [
0.2559308409690857,
-0.04549649357795715,
0.49850961565971375,
0.29681628942489624,
-0.1717054843902588,
-0.5208410024642944,
0.23996268212795258,
-0.4150162935256958,
0.31676608324050903,
-0.5281485915184021,
-0.04265240952372551,
0.6622817516326904,
-0.4010814428329468,
-0.23194520175457... | |
against the user database will be under our control. The lone few outsiders will be the applications we're removing the current user database from and perhaps 1 or 2 others. Nothing so broad as to need an openID server.
Its also important to know that a lot of these users have had these accounts for 5-8 years and know... | [
0.18860386312007904,
0.0007394655258394778,
0.06171467900276184,
0.179623544216156,
-0.23610761761665344,
-0.34560927748680115,
0.20065410435199738,
-0.2633609473705292,
0.015652893111109734,
-0.3343568444252014,
0.14772209525108337,
0.6943657994270325,
-0.2642635107040405,
0.1812088787555... | |
is controlled by the user and the DB would be controlled by an admin. The latter would likely morph in structure and complexity over time, but authentication is just that authentication. Separation of these functions will prove more manageable. | [
0.1871313601732254,
0.19636690616607666,
0.17664770781993866,
0.1883573830127716,
-0.22628657519817352,
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-0.5966225862503052,
0.5058799982070923,
-0.2306298315525055,
0.07600193470716476,
... | |
Lot of googling did not help me! Are there any good dictionary web based available?
I am looking for a site which can send me the meaning of words if we pass the word through query string!
I found you a [Big Huge Thesaurus](http://words.bighugelabs.com/) with a web API, and a dictionary at [Aonaware](http://services.... | [
0.45766016840934753,
0.14852303266525269,
0.2996772825717926,
0.09192607551813126,
-0.20819224417209625,
0.018291085958480835,
0.6919330358505249,
-0.0195893794298172,
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-0.44806650280952454,
0.30357131361961365,
0.3552573323249817,
0.014998074620962143,
0.02940690144896... | |
How do I write a clean implementation of the strategy pattern in Perl? I want to do it in a way that leverages Perl's features.
It really depends on what you mean by "clean implementation". As in any other language, you can use Perl's object system with polymorphism to do this for you. However, since Perl has first cla... | [
0.19773496687412262,
-0.09834978729486465,
-0.08311988413333893,
-0.058990418910980225,
-0.13072273135185242,
-0.0807529017329216,
0.41829678416252136,
-0.35127103328704834,
-0.34253060817718506,
-0.5978882312774658,
0.047359563410282135,
0.5112910866737366,
-0.6314981579780579,
-0.2933649... | |
is just a translation of the C++ code from [Wikipedia -- Strategy pattern](http://en.wikipedia.org/wiki/Strategy_pattern), except I'm using Moose's support for delegation.
```
package StrategyInterface;
use Moose::Role;
requires 'run';
package Context;
use Moose;
has 'strategy' => (
is => 'rw',
isa => 'S... | [
0.07995978742837906,
-0.12971815466880798,
0.39262819290161133,
-0.28691545128822327,
-0.40514442324638367,
-0.09032577276229858,
0.8029547929763794,
-0.5795778036117554,
-0.18551911413669586,
-0.7424371838569641,
-0.1701790690422058,
0.6175962686538696,
-0.3177134692668915,
-0.25131845474... | |
I need to figure out the hard drive name for a solaris box and it is not clear to me what the device name is. On linux, it would be something like `/dev/hda` or `/dev/sda`, but on solaris I am getting a bit lost in the partitions and what the device is called. I think that entries like `/dev/rdsk/c0t0d0s0` are the part... | [
0.3923123776912689,
-0.15437088906764984,
0.4465482532978058,
0.20205402374267578,
-0.18733996152877808,
-0.1134444922208786,
-0.3835110664367676,
0.07105174660682678,
-0.17222371697425842,
-0.8224425315856934,
-0.2786793112754822,
0.41452252864837646,
-0.09696164727210999,
0.3245268762111... | |
the partition table for the disk, to make sure. | [
-0.18294963240623474,
0.2415168285369873,
-0.11187851428985596,
0.4255792796611786,
0.13889989256858826,
0.21081942319869995,
-0.4648783504962921,
0.11366795748472214,
-0.3413615822792053,
-0.2988254427909851,
0.12053773552179337,
0.5532602667808533,
0.10636883974075317,
-0.077271603047847... | |
I'm new to RhinoMocks, and trying to get a grasp on the syntax in addition to what is happening under the hood.
I have a user object, we'll call it User, which has a property called IsAdministrator. The value for IsAdministrator is evaluated via another class that checks the User's security permissions, and returns ei... | [
0.38529133796691895,
0.3047347664833069,
0.4320894181728363,
-0.22181369364261627,
-0.08462203294038773,
0.09975907951593399,
0.5888693332672119,
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-0.5656245350837708,
0.2620241641998291,
0.6450008749961853,
-0.2993417978286743,
0.2802855372428894... | |
SetupResult.For(user.IsAdministrator).Return(true);
// do something with my User object
}
```
Now, I'm expecting that Rhino is going to 'fake' the call to the property getter, and just return true to me. Is this incorrect? Currently I'm getting an exception because of dependencies in the IsAdministrator propert... | [
0.5719350576400757,
0.07436317205429077,
0.21018952131271362,
0.22636933624744415,
0.15211808681488037,
-0.4897283613681793,
0.5790435075759888,
-0.10265430063009262,
-0.1990213543176651,
-0.38976284861564636,
0.1589995175600052,
1.105592966079712,
-0.24936851859092712,
0.1559676080942154,... | |
Also I think you may be misunderstanding exactly what Rhino is doing when you make a call to create a mock. Think of it as a custom Object that has either been derived from, or implements the System.Type you defined. If you did it yourself it would look like this:
```
public class FakeUserType: User
{
//overriding... | [
0.5077473521232605,
0.07940434664487839,
0.11561419814825058,
0.12916526198387146,
0.006214515771716833,
0.14649698138237,
0.11370599269866943,
-0.30484962463378906,
-0.38153111934661865,
-0.2529968321323395,
0.4950805604457855,
0.5657684206962585,
-0.46026289463043213,
0.41951602697372437... | |
on your user class as [aaronjensen](https://stackoverflow.com/questions/78389/rhinomocks-correct-way-to-mock-property-getter#78428) mentioned as follows:
```
public class User
{
public virtual Boolean IsAdministrator { get; set; }
}
```
This is an ok approach, but only if you plan on inheriting from your User cl... | [
0.09874466806650162,
0.10613126307725906,
0.009980487637221813,
0.1539534032344818,
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0.5453886389732361,
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-0.37217989563941956,
0.12486764788627625,
0.5593530535697937,
-0.3324659764766693,
0.122516475617... | |
interface IUser
{
Boolean IsAdministrator { get; }
}
public class User : IUser
{
private UserSecurity _userSecurity = new UserSecurity();
public Boolean IsAdministrator
{
get { return _userSecurity.HasAccess("AdminPermissions"); }
}
}
public void CreateSomethingIfUserHasAdminPermissions()... | [
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-0.2027636468410492,
0.8098734617233276,
-0.017908817157149315,
-0.11119509488344193,
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0.44058048725128174,
-0.27405282855033875,
-0.14080609381198883,
-0.9597002267837524,
0.14586053788661957,
0.5225362181663513,
-0.5395937561988831,
0.086294047534... | |
depend on interfaces rather than concrete implementations anyway.
I hope this helps. I have been using RhinoMocks for a long time on a major project now so don't hesitate to ask me questions about TDD and mocking. | [
0.5169990658760071,
0.36138999462127686,
-0.0049152798019349575,
0.3298449218273163,
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-0.6922156810760498,
0.5527682900428772,
0.8734663128852844,
0.12031880021095276,
-0.1682648658752... | |
I have an application that works pretty well in Ubuntu, Windows and the Xandros that come with the Asus EeePC.
Now we are moving to the [Acer Aspire One](http://en.wikipedia.org/wiki/Aspire_One) but I'm having a lot of trouble making php-gtk to compile under the Fedora-like (Linpus Linux Lite) Linux that come with it.... | [
0.2969284951686859,
0.15645956993103027,
0.5130366683006287,
0.16855093836784363,
-0.3652099370956421,
-0.348586767911911,
0.15286730229854584,
-0.17124368250370026,
-0.09375772625207901,
-0.5667365193367004,
0.0010408363305032253,
0.9140507578849792,
0.07553702592849731,
-0.04167369753122... | |
--force --nodeps -i gtk2*rpm glib2*rpm
#We install the rest of the libraries needed.
sudo yum --disablerepo=updates install atk-devel pango-devel libglade2-devel
sudo yum install php-cli php-devel make gcc
#We Download and compile php-gtk
wget http://gtk.php.net/do_download.php?download_file=php-gtk-2.0.1.tar.gz
tar ... | [
-0.18406130373477936,
-0.08359495550394058,
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-0.3324001431465149,
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-0.369343101978302,
-0.4038658142089844,
0.8349173665046692,
-0.33932405710220337,
-0.15483261644... | |
When writing a custom server, what are the best practices or techniques to determine maximum number of users that can connect to the server at any given time?
I would assume that the capabilities of the computer hardware, network capacity, and server protocol would all be important factors.
Also, do you think it is ... | [
0.3691161274909973,
0.009971135295927525,
-0.0019092384027317166,
0.20157450437545776,
0.045984555035829544,
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0.15826956927776337,
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-0.5104163289070129,
0.18437503278255463,
0.4180145561695099,
-0.21914148330688477,
-0.28126281... | |
handling large amounts of network connections from a single server, here: <http://www.kegel.com/c10k.html> | [
-0.36440980434417725,
0.11315526813268661,
-0.2287922203540802,
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-0.2648645341396332,
-0.20257334411144257,
-0.2353399097919464,
0.22088946402072906,
0.221197769045... | |
How can I find out the date a MS SQL Server 2000 object was last modified?
I need to get a list of all the views, procs, functions etc that were modified since Aug 15th. In sysObjects I can see the date objects were created but I need to know when they were last altered.
NB: this is an SQL 2000 database.
Note that SQ... | [
0.28588414192199707,
0.15111993253231049,
0.3981509506702423,
0.14936226606369019,
0.13846062123775482,
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0.16550464928150177,
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-0.7222257256507874,
0.22207202017307281,
0.24029165506362915,
-0.04479621350765228,
0.65697085857391... | |
it may not work for you.
Buck Woody had a good explanation of how this report works [here](http://blogs.msdn.com/buckwoody/archive/2007/10/12/sql-server-management-studio-standard-reports-schema-changes-history.aspx). The data is also temporary.
For this reason, you should never RELY on the Schema Changes History repo... | [
0.3202444016933441,
-0.00012217272887937725,
0.5062742829322815,
0.02866436168551445,
0.1857021003961563,
-0.49534788727760315,
0.4310295581817627,
0.060371749103069305,
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-0.5789030194282532,
0.05391249433159828,
0.5219503045082092,
-0.2023439258337021,
0.3216197192668... | |
That rules out Default Trace and DDL Triggers. You're left with one of the more tedious options I listed above. | [
0.36847442388534546,
-0.09505454450845718,
0.08572172373533249,
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-0.34552979469299316,
0.0735354796051979,
0.5482771992683411,
-0.041612397879362106,
0.0628703236579... | |
Using only ANSI C, what is the best way to, with fair certainty, determine if a C style string is either a integer or a real number (i.e float/double)?
Don't use atoi and atof as these functions return 0 on failure. Last time I checked 0 is a valid integer and float, therefore no use for determining type.
use the strt... | [
-0.027158202603459358,
-0.0587933212518692,
0.3466328978538513,
-0.18397365510463715,
-0.060922570526599884,
0.12234201282262802,
0.24812015891075134,
-0.5369266271591187,
-0.149720698595047,
-0.297470360994339,
-0.1098618432879448,
0.7823490500450134,
-0.35068708658218384,
-0.162585705518... | |
strtoul(to_convert, &p, 10);
if (errno != 0)
// conversion failed (EINVAL, ERANGE)
if (to_convert == p)
// conversion failed (no characters consumed)
if (*p != 0)
// conversion failed (trailing data)
```
Thanks to Jonathan Leffler for pointing out that I forgot to set errno to 0 first. | [
-0.25491613149642944,
0.20778851211071014,
0.060878343880176544,
-0.2909929156303406,
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0.6941958069801331,
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-0.5364289283752441,
-0.3950921297073364,
0.8108952045440674,
-0.2525082528591156,
-0.236129730939... | |
Does anyone know of any resources that talk about best practices or design patterns for shell scripts (sh, bash etc.)?
I wrote quite complex shell scripts and my first suggestion is "don't". The reason is that is fairly easy to make a small mistake that hinders your script, or even make it dangerous.
That said, I don'... | [
0.5989628434181213,
0.07964465022087097,
-0.24625858664512634,
-0.10758678615093231,
0.004297905135899782,
-0.3128564655780792,
0.6584393382072449,
0.06916896253824234,
0.02407415397465229,
-0.5425026416778564,
-0.12523742020130157,
1.0424892902374268,
-0.10146797448396683,
-0.308985441923... | |
and getopts. Use getopt as you face less trouble.
```
CommandLineOptions__config_file=""
CommandLineOptions__debug_level=""
getopt_results=`getopt -s bash -o c:d:: --long config_file:,debug_level:: -- "$@"`
if test $? != 0
then
echo "unrecognized option"
exit 1
fi
eval set -- "$getopt_results"
while true
d... | [
0.06814287602901459,
-0.16823342442512512,
0.4204072058200836,
-0.10611863434314728,
0.24799565970897675,
0.1322866678237915,
0.5128085613250732,
-0.4912605285644531,
-0.43749088048934937,
-0.604189932346344,
-0.7353231310844421,
0.8925688862800598,
-0.31703299283981323,
-0.521942138671875... | |
CommandLineOptions__debug_level="$2";
shift 2;
;;
--)
shift
break
;;
*)
echo "$0: unparseable option $1" | [
-0.2265380471944809,
-0.4458540678024292,
0.48807039856910706,
-0.40952304005622864,
0.5112066864967346,
-0.11717928200960159,
0.306922972202301,
-0.15195442736148834,
0.025012323632836342,
-0.18585725128650665,
-0.5962072610855103,
0.7464460730552673,
-0.435192346572876,
-0.03867381811141... | |
EXCEPTION=$Main__ParameterException
EXCEPTION_MSG="unparseable option $1"
exit 1
;;
esac
done
if test "x$CommandLineOptions__config_file" == "x"
then
echo "$0: missing config_file parameter"
EXCEPTION=$Main__ParameterException
EXCEPTION_MSG="missing config_file param... | [
-0.22196218371391296,
-0.0739394947886467,
0.20381110906600952,
-0.29904478788375854,
0.19018085300922394,
-0.09850547462701797,
0.5932515859603882,
-0.20053626596927643,
-0.4041757583618164,
-0.16509570181369781,
-0.38186946511268616,
0.606207013130188,
-0.23063679039478302,
0.07106393575... | |
calls**
You can call functions in bash, just remember to define them before the call. Functions are like scripts, they can only return numeric values. This means that you have to invent a different strategy to return string values. My strategy is to use a variable called RESULT to store the result, and returning 0 if ... | [
0.0011633522808551788,
0.10159017890691757,
0.08536924421787262,
-0.040092241019010544,
-0.1465095728635788,
0.12876363098621368,
0.31588372588157654,
-0.38082727789878845,
-0.09160244464874268,
-0.3834603726863861,
-0.031104346737265587,
0.6923080086708069,
-0.368660032749176,
0.079191945... |
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