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• How do I check to see if a column is in an xsd?

  - by Timmy

  Is there a simple way to see if the xsd code generating C# code has a particular column? Or if you can reference a variable column? table.getColumn("column") instead of table.column?

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• passing a variable by value using php

  - by PHP-Prabhu

  can any one please tell me how to pass a variable as/by value? what i did a mistake on the below code, its shows an parse error $a = &$$b

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• JS regular expression to find a substring surrounded by double quotes

  - by 2619

  I need to find a substring surrounded by double quotes, for example, like "test", "te\"st" or "", but not """ neither "\". To achieve this, which is the best way to go for it in the following 1) /".*"/g 2) /"[^"\\]*(?:\\[\S\s][^"\\]*)*"/g 3) /"(?:\\?[\S\s])*?"/g 4) /"([^"\\]*("|\\[\S\s]))+/g I was asked this question yesterday during an interview, and would like to know the answer for future reference.

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• Can you recommend a good book on zend framework.

  - by paan

  Can anyone recommend a good book on zend framework. I got ZF up and running but I want a more complete reference with maybe something that talks about each module more in depth. Is there such a book. There seems to be real slim pickings on ZF books

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• Finding some good Erlang books

  - by Mark Roberts

  Two questions: 1) What's the best book for learning to program in Erlang? 2) And also what's the best reference book for the proficient Erlang programmer? Thanks guys!

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• [C++] Is it possible to roll a significantly faster version of modf

  - by John

  In an app I'm profiling, I found that in some scenarios this function is able to take over 10% of total execution time. MSVC++ 2008 compiler is being used, for reference... I don't recall if modf maps to a single instruction or if there is likely any way to make it faster. see also here for similar question on sqrt function

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• Display different iphone views depending on logged in status

  - by user330936

  I want to display a login view to my users if they are not logged in and the main view if they are. In my header file I define a variable to hold the logged in status #define loggedIn 0 I figure I should then reference this in the initWithNibName method and then decide which nib to load. Is the right way of doing it? If so can someone help me out with the exact code? Thanks for any help

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• What hash/map based programming language exist?

  - by Davorak

  Much like lisp is often considered a list based programming language what languages are considered map based? I remember reading about one a few years back, but can not longer find a reference to it. It looked something like: [if:test then:<code> else:<more code>] edit: and more where quoted code blocks which would be conditional evaluated. In this fashion if/cond and others would not be special form as they are in lisp/scheme.

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• empty() doesn't work with codeigniter input class

  - by BabyAzerty

  This is really weird. Whenever I call something like if(empty($this->input->post("foo")){//blabla} The whole PHP is "down" and I get a blank page from the website (even when I don't pass through this empty(input) line). I know this is not the right method and it is stupid, I change the code to if(!$this->input->post("foo")){//blabla} Better I guess ? Seriously, how come the empty(input) breaks down the entire PHP page ? (I can't get any echo "something").

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• Using bind( type, [data], fn ) and non-inline function

  - by dalizard

  $("p").bind("click", function(event){ // code goes here }); This is quite understandable. But what is the way to use a non-inline function and pass the event as an argument? That is: $("p").bind("click", myFunction(event)); function myFunction(event) { // code goes here } Thank you!

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• What is the "=~" operator in Ruby?

  - by unpurposed

  I saw this on a screencast and couldn't figure out what it was. Reference sheets just pile it in with other operators as a general pattern match operator.

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• Haskell Input & Passing Values to Functions

  - by Pradeep

  putStrLn "Enter the Artist Name" art <- getLine putStrLn "Enter the Number of CD's" num <- getLine let test= buyItem currentStockBase art num printListIO (showcurrentList test) the values i have to pass for buyItem is buyItem currentStockBase "Akon" 20 but i want to send "Akon" to art and for 20 i want to send num it gives me this error ERROR file:.\Project2.hs:126 - Type error in application *** Expression : buyItem currentStockBase art num *** Term : num *** Type : [Char] *** Does not match : Int please help me

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• PHP make all possible variants of 4char A-Z,a-z,0-9

  - by Mike

  I have to make a list of all possible permurations of 4characters A-Z,a-z,0-9 and conbination of all this.How can i pass thru all of the possible combinations and printf them ? what's it for:I need to make this in a html document that i can then print and give all this as random unique usernames for our university, so that students can provide feedback based on one unique id that will be invalidated when used. i can not change this procedure into a better one!

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• "Distance" between colours in PHP

  - by Phil

  I'm looking for a function that can accurately represent the distance between two colours as a number or something. For example I am looking to have an array of HEX values or RGB arrays and I want to find the most similar colour in the array for a given colour eg. I pass a function a RGB value and the 'closest' colour in the array is returned

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• Given a Date "03/13/2010", using that in a MYSQL Where Clause?

  - by nobosh

  I would like to pass a MYSQL query via Coldfusion the following date: 03/13/2010 So the query filters against it like so: SELECT * FROM myTable WHERE dateAdded before or on 03/13/2010 I'd also like to be able to take 2 dates as ranges, from: 01/11/2000, to: 03/13/2010 SELECT * FROMT myTable WHERE dateAdded is ON or Between 01/11/2000 through 03/13/2010 thanks

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• Convert Nulls to Empty String in an object.

  - by John

  What is the easiest way to take an objects and convert any of its values from null to string.empty ? I was thinking about a routine that I can pass in any object, but I am not sure how to loop through all the values.

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• Passing partial arguments in tcshell

  - by R S

  Hey, I'm writing a shell script (tcsh) that is supposed to received 3 parameters or more. The first 3 are to be passed to a program, and the rest are supposed to be passed to another program. All in all the script should look something like: ./first_program $1 $2 $3 ./second program [fourth or more] The problem is that I don't know how to do the latter - pass all parameters that are after the third.

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• How do I stop a Java library from printing to the console?

  - by dave

  I am using a library that prints a bunch of superfluous information to the console when I reference it. Is there a way to silence the output of the library?

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• How to retrive content of one table from database in sqlite for iphone?

  - by Warrior

  I am using Sqlite database in my app.I Have 3 tables in database(group, category & categorygroup).I want to retrieve the contents from the category table with reference to the primary key of the group table.category group act as a junction table which as both the primary keys of group and category .How can i achieve that.Please help me out,Thanks

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• Why does string::find return size_type and not an iterator?

  - by dehmann

  In C++, why does string::find return size_type and not an iterator? It would make sense because functions like string::replace or string::insert take iterators as input, so you could find some character and immediately pass the returned iterator to replace, etc. Also, std::find returns an iterator -- why is std::string::find different?

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• how to get all objects of a given type in javascript

  - by FenchKiss Dev

  I want to retrieve all objects (not DOM elements) of a given type created with the "new" keyword. Is it possible ? function foo(name) { this.name = name; } var obj = new foo(); How can I retrieve a reference to all the foo objects ?

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• c++ memcpy return value

  - by knittl

  according to http://www.cplusplus.com/reference/clibrary/cstring/memcpy/ c++'s memcpy takes three parameters: destination, source and size/bytes. it also returns a pointer. why is that so? aren't the parameters enough to input and copy data. or am i misunderstanding something? the examples don't use the return value

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• What kind of data type is this?

  - by mystify

  In an class header I have seen something like this: enum { kAudioSessionProperty_PreferredHardwareSampleRate = 'hwsr', // Float64 kAudioSessionProperty_PreferredHardwareIOBufferDuration = 'iobd' // Float32 }; Now I wonder what data type such an kAudioSessionProperty_PreferredHardwareSampleRate actually is? I mean this looks like plain old C, but in Objective-C I would write @"hwsr" if I wanted to make it a string. I want to pass such an "constant" or "enum thing" as argument to an method.

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• How to convert a String to a Range Object

  - by nimo

  Hi, Is there anyway to convert a string value to a Range object ? I'm having a function which takes a Range object as a argument and need to pass a single string parameter to it Thank You

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• Credentials - Can I do this?

  - by zburns

  I've got an ASP.NET website that I use forms authentication using the default provider you can setup. This works just fine for the site. The question is can I pass the credentials from the web site to a web app on the same server?

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