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• Using CompareTo() on different .NET types (e.g. int vs. double)

  - by Yossin

  Hi, I've got a static method that accepts two object type variables and runs the CompareTo() method: public static int Compare(Object objA, Object objB) { return (((IComparable)objA).CompareTo(objB)); } Problem is that CompareTo() throws an exception when trying to compare between different types (e.g. int and double). Does any one know of a better way in C#, to compare between two different types? Or a workaround to this problem? Thanks

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• Form filter in symfony: imposible when a field is type "date"

  - by user248959

  Hi, anyone has tried to create a symfony form filter from a class which has a field of type "date" ? When i do it, i get this error: 500 | Internal Server Error | Doctrine_Connection_Mysql_Exception SQLSTATE[HY093]: Invalid parameter number: number of bound variables does not match number of tokens stack trace I think the error dependens on this command: 'SELECT b.id AS b_id, b.day AS b_day FROM birthday b WHERE b.day = ? AND b.day <= ?', array('month' = '1','day' = '2', 'year' = '2014') but i dont know how can i solve it.. Any idea? Javi

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• how to sort STL vector

  - by NativeCoder

  i want to sort a vector vector<myclass> object; where as myclass contains many int data variables, how can i sort my vector on any specific data variable of myclass.

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• [python] parsing a string based on specified identifiers

  - by jml

  Let's say that I have the following text: in = "one aaa two bbbb three cccc" I would like to parse this into a group of variables that contain notworking = ["one", "two", "three"] v1,v2,v3 = in.split(notworking) I know that the example above won't work, but is there some utility in python that would allow me to use this sort of approach? I know what the identifiers will be in advance, so I would think that there has got to be a way to do this... Thanks for any help, jml

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• How to externalize web.xml servlet init-param? Spring DelegatingFilterProxy for Servlets?

  - by jnorris

  I have a 3rd-party servlet that I cannot modify. It accepts an init-param that I would like to externalize (from web.xml). I can externalize a servlet filter init-param using DelegatingFilterProxy. This effectively moves the servlet filter definition into Spring where there are much more powerful externalization tools (eg: PropertyPlaceholderConfigurer, environment variables, etc.) How can I do this for a servlet?

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• How do I transfer a javascript value to a php variable?

  - by motboys

  I have an html table containing values that are being generated from javascript. How do I transfer those values to php variables?

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• Putting more than one variable into a sql statement

  - by Luke

  I have constructed the following - `$format_$game_$name_$season` 4 variables with underscores between. Should this work, or will it act as one variable? THankyou

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• Is it safe to make GL calls with multiple threads?

  - by user146780

  I was wondering if it was safe to make GL calls with multiple threads. Basically I'm using a GLUtesselator and was wondering if I could divide the objects to draw into 4 and assign a thread to each one. I'm just wondering if this would cause trouble since the tesselator uses callback functions. Can 2 threads run the same callback at the same time as long as that callback does not access ant global variables? Are there also other ways I could optimize OpenGL drawing using multithreading? Thanks

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• Best way to initialise / clear a string variable cocoa

  - by Spider-Paddy

  I have a routine that parses text via a loop. At the end of each record I need to clear my string variables but I read that someString = @"" actually just points to a new string & causes a memory leak. What is the best way to handle this? Should I rather use mutable string vars and use setString:@"" between iterations?

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• Is it possible to pass an array as a command line argument to a PHP script?

  - by Manos Dilaverakis

  I'm maintaining a PHP library that is responsible for fetching and storing incoming data (POST, GET, command line arguments, etc). I've just fixed a bug that would not allow it to fetch array variables from POST and GET and I'm wondering whether this is also applicable to the part that deals with the command line. Can you pass an array as a command line argument to PHP?

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• When knowledge of "multithreading" is specified in a C++ job description, what is the expectation?

  - by Vaibhav Khattri

  I understand it should cover threading primitives (mutex, semaphore, condition variables etc.) plus design patterns (such as those specified in POSA2). But what's more? Every project has its own multithreading scenarios and one may have not dealt with those that the job is expecting?. So how does one build their knowledge and prove that they have the ability?

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• What's the simplest way to get the highest and lowest keys from a dictionary?

  - by Jorge

  self.mood_scale = { '-30':"Panic", '-20':'Fear', '-10':'Concern', '0':'Normal', '10':'Satisfaction', '20':'Happiness', '30':'Euphoria'} I need to set two variables: max_mood and min_mood, so I can put some limits on a ticker. What's the easiest way to get the lowest and the highest keys?

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• Why can we have static final members but cant have static method in an inner class ?

  - by user275131

  Why can we have static final members but cant have static method in an inner class ? Can we access static final member variables of inner class outside the outer class without instantiating inner class ?

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• Why double.MaxValue is larger than long.MaxValue?

  - by cake

  both of them hold 8 bytes, but how come the max value for double is much greater than the max value of long? there is a finite number of bits available, so how could you reach greater numbers with floating point variables?

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• C++ conversion from string to object identifier

  - by 104250004363501275012

  I'm writing a program in C++ that reads in some data from an external file in order to set the values of static variables. Is it possible to convert a string to an object identifier? (e.g. convert the string "CheckBox::Unchecked" into and identifier for the object CheckBox::unchecked)

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• PHP script isn't receiving income POST data from a remote form

  - by James Skidmore

  I have a PHP script that uses standard POST variables like $_POST['email']. When a form on a remote server sends a POST request to my script, it doesn't receive the POST data at all. It's not in $_REQUEST either. Thanks for any help!

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• Netbeans: How do I break on a NullPointerException?

  - by darren

  Hi When debugging a java program in netbeans, I want the debugger to stop on the line that causes a NullPointerException so I can examine the variables there. I believe I have to use a condition on the breakpoint set at that line, but what is the syntax of the condition? thanks for the help

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• C++ Pointer to a function which takes an instance of a templated class as argument

  - by Nils

  I have trouble compiling a class, which has function pointers as member variables. The pointers are to functions which take an instance of a class as argument. Like template<class T, int N> double (*f)(Vector<T,N> v); I get "error: data member 'f' cannot be a member template" Compiler is gcc 4.2.

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• Why does a programming language need keywords?

  - by eSKay

  For example (in C): int break = 1; int for = 2; Why will the compiler have any problems at all in deducing that break and for are variables here?

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• Building a decision-making game in jQuery? Where would I store data....

  - by redconservatory

  I built a slideshow/decision-making game in Flash but would like to try to redo it using jQuery. The slideshow part seems simple enough, however I have a series of user decisions that I'm not sure how to approach. In flash, if the user makes a decision, I would just store this in a variable or shared local objects, is this the same for jQuery? i.e. mix regular javascript variables with the jQuery?

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• How to do a Post/Redirect/Get using Sinatra?

  - by John Topley

  What's Sinatra's equivalent of Rails' redirect_to method? I need to follow a Post/Redirect/Get flow for a form submission whilst preserving the instance variables that are passed to my view. Does the redirect method preserve them? (I'm at work at the moment and don't have access to Sinatra to try for myself.)

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• How do I conditionally redirect the output of a command to /dev/null?

  - by Lawrence Johnston

  I have a script. I would like to give this script a quiet mode and a verbose mode. This is the equivalent of: if $verbose then redirect="> /dev/null" fi echo "Verbose mode enabled" $redirect # This doesn't work because the redirect isn't evaluated. I'd really like a better way of doing this than writing if-elses for every statement affected. eval could work, but has obvious side effects on other variables.

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• Is there a way to enable both session and streaming in netTcpBinding?

  - by DxCK

  Hi I writing a WCF Service that need transfer large files, so i using streaming, but from the other hand i need to do username specific initializations. The problem is that getting the username and perform initialization every time is very expensive. If i could turn on session, i could just save initialized data in local variables in the service instance. Is there a way to turn on both streaming and session in netTcpBinding?

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• How to rip specific data from an HTML file?

  - by SnirD

  Hi, so I have multiple HTML files which I need to get some praticular data from, I mean theres a bunch of non relative information in this HTML files, but I need just lets say things that are between the <div class="myInfo"> and </div>, after getting this information I want to handle it in my own PHP page, so for example I can insert this data into some variables. Is it even possible using PHP only? (Forgive me for my English mistakes)

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• ASP.net menu only show certain nodes in Web.sitemap

  - by Mike

  Hi, I have a few items apart of my Web.sitemap file that rely on querystring or session variables. I do not want these items to appear in my menu. Is there a way to hide it from the menu, but still be in the sitemap (for sitepath control). Thanks

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