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• Auto-Completion in Unix VI editor

  - by IllustratedInsomnia

  Hey guys, after using graphical IDE's like Visual Studio, I'm used to pressing CTRL+Space to auto-complete a variable or function name. Now, I know such a thing isn't completely possible in VI, but I heard there was a list of commands that could be mapped that allowed automatic completion of variables and functions in the current file opened. Does anyone know what this sequence is? Thanks in advance.

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• geting the median of 3 values using sheme car & cdr

  - by kristian Roger

  Hi still stuck with the ugly scheme the problem this time is to get the median of three values (easy) I did all these : (define (med x y z) (car(cdr(x y z))) and it was accepted but when testing it (med 3 4 5) I will get this error Error: attempt to call a non-procedure (2 3 4) and when entering letters inetead of number i got (md x y z) Error: undefined varia y (package user) using somthin else than x y z i got (md d l m) Error: undefined variable d (package user) so what is wronge ?!

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• $stdin compatibility with std::istream using swig, C++, and Ruby

  - by Kenny Peng

  I have a function in C++ that takes in an std::istream as the input: class Foo { Foo(std::istream &); } Using SWIG, I've bound it to Ruby, but Ruby's $stdin variable is fundamentally different from anything like the stream classes in C++, so I'm not sure how to either 1) expose the C++ class to Ruby in a way that I can use $stdin, or 2) convert $stdin into something the C++ class can understand. Anyone have experience with binding iostreams in C++ to Ruby? Thanks.

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• Throwing errors while changing Ui design

  - by subbu

  I have a Datagrid , 2 textBoxes and 4 buttons whenever I change positions or add a new controls , It gives errors form my grid variable saying it is not in current context . I am creating a window Application and using WinForms

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• java interfaces

  - by Codenotguru

  write an interface with one method,two classes that implement the interface, and a main method with an array holding an instance from both classes.Using this array variable call the method in a foreach loop.This is a interview question in java anybody?

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• Is there a way to make C macros keyword agnostic?

  - by Dragos Toader

  Is there a way to concatenate keywords in a macro and get C to behave in a more dynamic fashion as in: #define macro(fun,ction,var,iable) function(variable) I know this kind of thing exists in other languages.

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• Python float copy question

  - by SJA

  Hi, I'm puzzled by some behaviour I'm seeing when copying a float array member into another variable - please help! For example data_entry[1] = 9.6850069951 new_value = data_entry[1] <comment> #print both 9.6850069951 9.6850663300 I'm aware of the problem of binary storage of floats but I thought with a direct copy of memory we would end up with the same value. Any ideas? I need better precision than this! thanks in advance Stuart

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• Shopping Cart in Flex 4

  - by chchrist

  I am trying to code a shopping cart using Flex 4. I am at the design process and I need to figure out which design pattern to use. I am thinking of using the Singleton pattern. I will have a Product Value Object where I'll save each product's values and the I'll push each product to an array variable in my Singleton class. Is my logic OK? Is there a better way? Thanks in advance

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• Removing a Preceding Backslash from Apostrophes

  - by John

  Hello, When I add a comment using the variable below, apostrophes are printed with a backslash in front of them. How can I get rid of the backslashes? Thanks in advance, John Example of printed result: My roommate\'s brother\'s ex-girlfriend\'s aunt drive a Toyota. $comment = mysql_real_escape_string($_POST['comment']);

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• how to get child nodes in xsl

  - by ppp

  here my code- <xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"> <xsl:template match="ArrayOfLinkEntity" name="bindLink"> <ul> <xsl:for-each select="LinkEntity[ParentLinkId=0]"> <li> <xsl:variable name="linkId" select="LinkId"/> <xsl:variable name="child" select="count(/ArrayOfLinkEntity/LinkEntity[ParentLinkId=$linkId])"/> <xsl:value-of select="$child"/> <xsl:choose> <xsl:when test="($child &gt; 0)"> <a href="#" data-flexmenu="flexmenu1" onclick="javascript:setPageLinkId({$linkId});"> <xsl:value-of select="LinkTitle"/> <img src="../images/down.gif" border="0"/> </a> </xsl:when> <xsl:otherwise > <a href="#" onclick="javascript:setPageLinkId({$linkId});"> <xsl:value-of select="LinkTitle"/> </a> </xsl:otherwise> </xsl:choose> </li> </xsl:for-each> </ul> </xsl:template> </xsl:stylesheet> but I am getting $child=0 always.but there exists children. my xml structure- <ArrayOfLinkEntity xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema"> <LinkEntity> <EntityId>00000000-0000-0000-0000-000000000000</EntityId> <LinkId>1</LinkId> <SequenceNo>1</SequenceNo> <ParentLinkId>0</ParentLinkId> <LinkTitle>Home</LinkTitle> <SubLink /> </LinkEntity> ... </ArrayOfLinkEntity> What should I do? Please suggest.

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• Rubyists: What is this called?

  - by Matt Darby

  Say I have a pool of enumerables that I want to group by an attribute: cars = Car.all.group_by(&:color) Then I want to iterate over those cars like so: cars.inject([]) do |stack, (color, cars)| stack << cars.each do |car| ... end end What is the term for the block variable extension (between the parentheses)?

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• Pass first element of jsp list to javascript

  - by Lucian Enache

  Ok so I'm trying to access the first element of a JSP list, here's what I've come up with so far without any kind of luck: onclick="alert('<%=list[0]%>');" What's the best approach to access the first element and eventually to pass it to a javascript variable/function ? I've heard that the <% %> tags are deprecated and some are suggesting relaying on JSTL/EL how can one use those without having to iterate the entire list and put a breakpoint for the iterators ?

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• How to camelcase decibels?

  - by Roddy

  The standard abbreviations for decibels is "dB" (note the case!) So, if I have a variable, holding (for instance) a maximum dB value, how best to name it? maxDbValue maxdBValue maxDecibelValue something else? Each has disdvantages - #1 swaps the case of the unit, #2 doesn't clearly split max from dB, and #3 is verbose... I think #1 feels best, but...???

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• numeric cycles in shell

  - by oraz

  hello, what is the name and sintacsys of construcion ((..)) in example below? for ((i=1;i<10;i++)) do echo $i; done it has strange variable i where are other constructons for numeric cycling in shell?

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• Keyword Selection Background?

  - by Irwin

  I just installed MSVS2010 Ultimate & I've noticed something which is somewhat annoying & conflicting with my syntax highlighting, as can be seen: As can be seen, when a keyword/function/variable/etc is highlighted all other instances of the aforementioned are highlighted too. This is somewhat annoying. Is there any way to disable this?

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• Unescaping of data in JS

  - by innek81

  Say i got a variable, var s = "\"\\\"abc\\\"\""; which is unescaped to "\"abc\"" when i display in the browser. But i need it to be further unescaped to the actual value "abc".

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• Please help me:(

  - by Marin

  Hi! Can anyone please help me?:( I'm desperrate cause I have to finish this script as soon as possible! The problem is: Deprecated: Assigning the return value of new by reference is deprecated in C:\wamp\www\FlashChat_v607\chat\inc\common.php on line 155 Notice: Undefined variable: step in C:\wamp\www\FlashChat_v607\chat\inc\common.php on line 94 and this is the link where you can find the code: http://www5.zippyshare.com/v/3592861/file.html

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• pthread and child process data sharing in C

  - by mustafabattal

  hi everyone, my question is somewhat conceptual, how is parent process' data shared with child process created by a "fork()" call or with a thread created by "pthread_create()" for example, are global variables directly passed into child process and if so, does modification on that variable made by child process effect value of it in parent process? i appreciate partial and complete answers in advance, if i'm missing any existing resource, i'm sorry, i've done some search on google but couldn't find good results thanks again for your time and answers

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• How do I change the Javadocs template generated in Eclipse?

  - by Olaseni

  I dislike the default Javadocs generated for me when I create a Class or methods, especially the @author variable, which is the current system username on my windows box. I would like to change it. Is this possible?

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• NSMutableArray with only a particular type of objects

  - by Leo

  Hello, is it possible to specify that a NSMutableArray can only contain a certain type of objects. For example, if I want to store only this kind of objects : @interface MyObject : NSObject { UInt8 value; } In order to be able to use the instance variable like this : - (void)myMethod:(NSMutableArray *)myArray{ for (id myObject in myArray){ [self otherMethod:myObject.value]; } } because I'm getting this error : request for member 'value' in something not a structure or union Thank you for your help

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• PHP Detect if any URL variables have been set

  - by zuk1

  Hey guys, it's kind of hard to explain but basically I want to detect if any variables have been set through the URL. So with my IF statement all of the following should return true: http://domain.com/index.php?m=100 http://domain.com/index.php?q=harhar http://domain.com/index.php?variable=poo&crazy=yes and all the following return false: http://domain.com/index.php http://domain.com/test.php http://domain.com/no_variables.php Any ideas?

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• Efective way to avoid integer overflow when multiplying?

  - by Jonathan

  Hi, I'm working on a hash function which gets a string as input. Right now I'm doing a loop and inside the hash (an int variable) is being multiplied by a value and then the ASCII code for the current character is added to the mix. hash = hash * seed + string[i] But sometimes, if the string is big enough there is an integer overflow there, what can I do to avoid it while maintaining the same hash structure? Maybe a bit operation included inside the loop?

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• finding a letter in a string with jquery

  - by Ahmet vardar

  Hi, it looks very basic thing but i could not figure it out. var email = $("input#email").val(); how can i check if that email variable has @ letter ? Thanks

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• How to format TSQL SELECT output in SQL Sever

  - by mohamadreza

  How to loop through a select statement results to have a formatted text? for example the select is like: select name from table and we want a variable @names like this: "name1,name2,name3" Database is SQL Server 2005

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• Extract external javascript query string/anchor value: file.js#foo=bar

  - by jfroom

  http://mycloud.net/js/file.js#foo=bar I'm trying to load a cross domain javascript file, and want to pass a variable along on the query string. I have seen the above '#' method used, but am unsure of how to extract the 'foo' value from within the file.js. Any clues how to handle this without the aid of server side help? Thanks.

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