Search Results

Search found 27144 results on 1086 pages for 'tail call optimization'.

Page 537/1086 | < Previous Page | 533 534 535 536 537 538 539 540 541 542 543 544  | Next Page >

• In SpecFlow how can I share data between steps/features?

  - by Si Keep

  I have 2 features that use a common 'When' step but have different 'Then' steps in different classes. How do I access, for example, the ActionResult from my MVC controller call in the When step in my two Then steps?

  Read the article

• the "new" operator in c++, pointer question

  - by Crystal

  Dumb question, but whenever you call new, do you always have a pointer? SomeClass *person = new SomeClass(); And is that because you need a pointer to point to that new space of memory that was allocated for the SomeClass variable person? Thanks!

  Read the article

• Performance - FunctionCall vs Event vs Action vs Delegate

  - by hwcverwe

  Currently I am using Microsoft Sync Framework to synchronize databases. I need to gather information per record which is inserted/updated/deleted by Microsoft Sync Framework and do something with this information. The sync speed can go over 50.000 records per minute. So that means my additional code need to be very lightweight otherwise it will be a huge performance penalty. Microsoft Sync Framework raises an SyncProgress event for each record. I am subscribed to that code like this: // Assembly1 SyncProvider.SyncProgress += OnSyncProgress; // .... private void OnSyncProgress(object sender, DbSyncProgressEventArgs e) { switch (args.Stage) { case DbSyncStage.ApplyingInserts: // MethodCall/Delegate/Action<>/EventHandler<> => HandleInsertedRecordInformation // Do something with inserted record info break; case DbSyncStage.ApplyingUpdates: // MethodCall/Delegate/Action<>/EventHandler<> => HandleUpdatedRecordInformation // Do something with updated record info break; case DbSyncStage.ApplyingDeletes: // MethodCall/Delegate/Action<>/EventHandler<> => HandleDeletedRecordInformation // Do something with deleted record info break; } } Somewhere else in another assembly I have three methods: // Assembly2 public class SyncInformation { public void HandleInsertedRecordInformation(...) {...} public void HandleUpdatedRecordInformation(...) {...} public void HandleInsertedRecordInformation(...) {...} } Assembly2 has a reference to Assembly1. So Assembly1 does not know anything about the existence of the SyncInformation class which need to handle the gathered information. So I have the following options to trigger this code: use events and subscribe on it in Assembly2 1.1. EventHandler< 1.2. Action< 1.3. Delegates using dependency injection: public class Assembly2.SyncInformation : Assembly1.ISyncInformation Other? I know the performance depends on: OnSyncProgress switch using a method call, delegate, Action< or EventHandler< Implementation of SyncInformation class I currently don't care about the implementation of the SyncInformation class. I am mainly focused on the OnSyncProgress method and how to call the SyncInformation methods. So my questions are: What is the most efficient approach? What is the most in-efficient approach? Is there a better way than using a switch in OnSyncProgress?

  Read the article

• Compact and Repair Database programatically

  - by Smashery

  How can I call Access's Compact and Repair Database utility from within C++? I'm already using ADO and ADOX, so a solution using either of those would be handy.

  Read the article

• Getting installed app size

  - by alex

  I'm trying to figure out how to get the size of an installed app. What's already failed: - new File('/data/app/some.apk') - reports incorrect size - PackageManager.getPackageSizeInfo(String packageName, IPackageStatsObserver observer) - is @hide and relies on some obscure IPackageStatsObserver for result so I can't call it via reflection.

  Read the article

• VB.Net Disable Parent Window on Show

  - by Tyler

  How can I disable the parent form when I call a child form? frmChild.ShowDialog() Doesn't disable the parent form like I thought it would.

  Read the article

• Using getAnchorByText, but want the 2nd of 2 links on the page

  - by Blankman

  On my page, there are 2 links with the same anchor text. I am using HtmlUnit to get the link by the anchor text. The call to: page.getAnchorByText("1"); Seems to always get the first occurrance, is there a way to get the 2nd occurance if there are 2 links?

  Read the article

• How to create a non-persistent (in memory) http cookie in C#?

  - by MatthewMartin

  I want my cookie to disappear when the user closes their brower-- I've already set some promising looking properties, but my cookies pop back to live even after closing the entire browser. HttpCookie cookie = new HttpCookie("mycookie", "abc"); cookie.HttpOnly = true; //Seems to only affect script access cookie.Secure = true; //Seems to affect only https transport What property or method call am I missing to achieve an in memory cookie?

  Read the article

• How can I control standard out of C++ routines wrapped with SWIG and exposed in Python?

  - by cmdev

  Is it possible to control the standard streams of C++ code in python? So the code is wrapped with SWIG and then exposed to python where I call its functions. I am getting all kinds of unwanted messages coming from C++ code and I want to suppress them either by not using the stream or by redirecting it to a bit bucket.

  Read the article

• iPhone XML SOAP requests or .NET Web Services

  - by CocoaNewBee

  I've been trying to to consume SOAP requests (.NET web services) and have found some pretty good tools that I wanted to share: 1) http://grabalife.com/2009/10/19/using-net-web-services-and-dataset-objects-in-your-iphone-app/ Really easy clean way to perform all the call needed for consuming the services. 2) http://code.google.com/p/mac-soapclient/ SOAP Client uses WSDL files you provide to dynamically create a graphical user interface for any given SOAP-based web service Hopefully that will help someone as much as me!!! Happy coding !

  Read the article

• android disabled view are focusable

  - by Arutha

  When I disabled views such as radiobutton or buttons with the setEnabled method, the views are still focusable but with view such as EditText they are'nt... I need to call setFocusable(false) if i want that all my views don't receive focus when they are disabled ?

  Read the article

• Why wait should always be in synchronized block

  - by diy

  Hi gents, We all know that in order to invoke Object.wait() , this call must be placed in synchronized block,otherwise,IllegalMonitorStateException is thrown.But what's the reason for making this restriction?I know that wait() releases the monitor, but why do we need to explicitly acquire the monitor by making particular block synchronized and then release the monitor by calling wait() ? What is the potential damage if it was possible to invoke wait() outside synch block, retaining it's semantics - suspending the caller thread ? Thanks in advance

  Read the article

• Reflection: get Static method from the parent class.

  - by jitm

  Hello, I have task to get static method using reflection like this : myType.GetMethod("MyMethod",BindingFlags.Static | BindingFlags.Public | BindingFlags.InvokeMethod); In case if class contains MyMethod all works correctly, but in case if parent class contains MyMethod I receive null :(. How can I call static method from the parent using reflection like code that I describe above? Thanks.

  Read the article

• How can I run an external program from C and parse its output?

  - by Josh Matthews

  I've got a utility that outputs a list of files required by a game. How can I run that utility within a C program and grab its output so I can act on it within the same program? UPDATE: Good call on the lack of information. The utility spits out a series of strings, and this is supposed to be complete portable across Mac/Windows/Linux. Please note, I'm looking for a programmatic way to execute the utility and retain its output (which goes to stdout).

  Read the article

• undefined method `parameterize' for nil:NilClass

  - by Senthil

  I've been trying to do SEO friendly urls, and managed to get it work, but when I call index action on blogs, I get a weird "undefined method `parameterize' for nil:NilClass." The method works when using show method. def to_s title end def to_param "#{id}-#{to_s.parameterize}" end

  Read the article

• How do I write a bash script to restart a process if it dies?

  - by Tom

  I have a python script that'll be checking a queue and performing an action on each item: # checkqueue.py while True: check_queue() do_something() How do I write a bash script that will check if it's running, and if not, start it. Roughly the following pseudo code (or maybe it should do something like ps | grep?): # keepalivescript.sh if processidfile exists: if processid is running: exit, all ok run checkqueue.py write processid to processidfile I'll call that from a crontab: # crontab */5 * * * * /path/to/keepalivescript.sh Thanks in advance.

  Read the article

• codeigniter fatal error, trying to read database

  - by ThomasReggi

  Fatal error: Call to a member function result() on a non-object in C:\wamp\www\system\application\models\users_model.php on line 8 <?php class Users_model extends Model { function get_records() { $query = $this->db->get('users'); return $query->result(); } } ?>

  Read the article

• JMS Acknowledge Asynchronous Message

  - by x1a0

  Hi, How do I acknowledge a message when I am using a message listener? I get the following error when I try to do an acknowledge in my message listener. A synchronous method call is not permitted when a session is being used asynchronously: 'acknowledge'

  Read the article

• How does init() get called on a Handler in a WebApp

  - by stevebot

  Hey, I have a Handler object that functions kind of like a service. It has a public init method defined in the Implementation but not the Interface. This Handler is also being autowired via Spring. How does the init method get invoked? Is it via Spring or does Tomcat call this?

  Read the article

• How to tell if a DLL function is being called from a VB6 exe?

  - by aiGuru

  I have an old VB6 app and I'm not sure which code was used to compile it. One revision of the source makes a call to Sleep in kernel32.dll. Is there a way to find out if the exe calls a specific function in a DLL? I can see that kernel32.dll is linked by using the "Dependency Walker" tool but that doesn't seem to tell me that a specific function is called from the exe.

  Read the article

• How do I write to command line in c#?

  - by ben

  Hi I know how to write to console but if I write to console in my program and call my program from the command line it won't display anything. How do I make it so that when I say Console.WriteLine or Console.Out.Writeline ir prints to the command prompt from which it was called and not somewhere else? Once again I know how to do Console.WriteLine so it's not that :-p unless I'm doing it wrong. From what I can tell it's probably something to do with Console.SetOut(TextWriter t)

  Read the article

• Get current Apache version string for display

  - by Stijn Sanders

  I'm writing an Apache module and want to get a string with the Apache name version and other details. Much like what gets added to outgoing headers, e.g.: Server: Apache/2.2.13 (Win32) I've tried code like this: apr_table_get(request_rec->headers_out,"Server") But that doesn't seem to work. Is there an API call I haven't found or am I doomed to get version resource data from httpd.exe?

  Read the article

• Manually animate a view fading in?

  - by Moshe

  I want a view to fade in when being added to the stack via [self.view addSubview:phrasesEditor.view]; How do I animate this call so that the view fades in (and out)?

  Read the article

• Set time part of datetime variable to 18:00

  - by maxt3r

  Hi. I need to set datetime variable to two days from now but it's time part must be 18:00. For example if i call getdate() now i'll get 2010-05-17 13:18:07.260. I need to set it to 2010-05-19 18:00:00.000. Does anybody have a good snippet for that or any ideas how to do it right?

  Read the article

• What happens in memory when calling a function with literal values?

  - by Drise

  Suppose I have an arbitrary function: void someFunc(int, double, char); and I call someFunc(8, 2.4, 'a');, what actually happens? How does 8, 2.4, and 'a' get memory, moved into that memory, and passed into the function? What type of optimizations does the compiler have for situations like these? What if I mix and match parameters, such like someFunc(myIntVar, 2.4, someChar);? What happens if the function is declared as inline?

  Read the article

< Previous Page | 533 534 535 536 537 538 539 540 541 542 543 544  | Next Page >