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• Do I have to initialize simple class member variables?

  - by Frank

  Quick beginner's question: Do I have to initialize simple class member variables, or are they guaranteed to get assigned their default values in any case? Example: class Foo { int i; // is i==0 or do I need the following line for that? Foo() : i(0) {} }; Thanks!

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• Regular expression for a list of numbers without other characters

  - by JamesW

  I need a regular expression for a list of numbers in a text box with carriage returns and line feeds, but no other characters. e.g. 1234 5678 5874 3478 I have this: Regex(@"\d\r\n${0,}?"); ... but it is accepting commas when I paste them into my text box: e.g. 1234, 5678 5874, 3478 Can someone please tell me what I'm doing wrong? Thanks

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• How can I convert connection data lines to block of schemes using Perl?

  - by YoDar

  I'm looking for a way to convert signals connections to a simple scheme or graph. Let's say I have 2 components with 2 line/signals around them: component A: input - S1 output - S2 component B: input - S2 output - S1 This will be the input data file, and the output will be a scheme that shows it as 2 blocks with connecting lines around them or a illustration graph. I'm wondering if an implementation of that exists in Perl's world.

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• CRON job for codeigniter

  - by ASD

  I am using codeigniter. I want to know how to set up a cron job to check a table for expiring users and insert data in to another table with the list of expiring users. How to do that. When i tried to write a script with controller and model to insert the table : Content-type: text/html Fatal error: Class 'Controller' not found in /home/content/html/test/live/application/controllers/cron.php on line 2

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• Latex: Decreasing the vertical margins in quote and verse

  - by directx

  In Latex, by using begin{verse} and end{verse}, there is about a 1-line space between the verse and the surrounding text (on the top and bottom of it). How do you change the amount of space here?

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• broken UTF-8 String ruby

  - by josh

  While reading a file I get broken UTF-8 String error whenever I have the following in my file través if I change it to normal e then it works. Whats the way to fix this? error only happens if I do line.lstrp or any other function. Just printing the lines is ok. problem even happens when I try to match the string with regex.

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• Can you make floated elements in a div not wrap?

  - by user169867

  (The target browser is IE8) I have a div that contains a list of elements floated left. The elements width can change at runtime. I'd like to make it so that if they longer fit in the div it just gets cut off and doesn't wrap to a new line.

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• Why does the default view for a List in ASP.NET MVC use 'var' to iterate through the items?

  - by SLC

  The title pretty much sums it up, it puts the following line of code in: <% foreach (var item in Model) { %> As the View is auto-generated and uses reflection to work out exactly what item is, so you get intellisense and everything, I just wonder, why do they use var rather than the actual type?

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• Renaming table in rails

  - by Tommy

  I want to rename a table... (any table.) I tried this line of code: ActiveRecord::ConnectionAdapters::SchemaStatements.rename_table(old_name, new_name) Here's the weird thing. I know I got it working the first time, but now I get this error: undefined method `rename_table' for ActiveRecord::ConnectionAdapters::SchemaStatements:Module Was there something I need to set? Or am I going blind here.. Thanks!

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• How to detect where the $end error in php is exactly is

  - by user225269

  I'm having trouble with this error in php: Parse error: syntax error, unexpected $end in J:\Server\xampplite\htdocs\exp\printact.php on line 172 It might be a lack of bracket or something. Is there any tool that could help me pin point where exactly the error is?

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• I'm trying to match some numbers in a string using a regexpressions and am having difficulty with th

  - by Ryan

  here is the line i'm trying to parse [\\?\Volume{d3f7f470-526b-11df-92eb-001a647802d2}\] 85 90 NotFound I'm basically just trying to get the numbers that are outside of the brackets and ignore anything in between the brackets. My original syntax worked until I realized that sometimes there would be numbers in the brackets (I was just using "([0-99]{2})") any help would be greatly appreciated. Thanks

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• How may I use Firebug to view attributes of jQuery-retrieved objects at a breakpoint?

  - by Anton Thorn

  For instance, I've hit a break point on a line of code where I'm setting the height of one div equal to the height of another: $("box_left").height = $("box_right").height; How do I view the value of 'height'? All firebug every shows me is 'function()'. :(

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• The role of data types inside of the < > in declarations in Java?

  - by Emanuil

  To give an example, whats the role of the <String> in the following line of code? private List<String> item = new ArrayList<String>();

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• How can I use inline ASP.NET tags inside JavaScript?

  - by Bob

  How can I use ASP.NET inline tags from within a block of JavaScript? For example: <script type="text/javascript"> // Do some AJAX here, then redirect to a new page on the next line. window.location = "/Movie/" + <%= html.encode(MovieName) %>; </script>

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• how to run QT from control panel in windows

  - by coderex

  hi all, i installed Qt4 and Qt creator. now i need to know how can i run an application with in command line.

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• How to skip a statement in Eclipse during debugging

  - by frankfwl

  Is it possible to skip a statement in Eclipse while debugging? Suppose the process stopped at breakpoint and I want to skip the breakpoint line ( or maybe a few lines below), can I do it? On the debug tab, it only has "Step into", "Step over" and "Step return" buttons. I did google around but couldn't find anything, hopefully I can find an answer here.

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• Ruby - How to write a new file with output from script

  - by Sam

  I have a simple script that does some search and replace. This is basically it: File.open("us_cities.yml", "r+") do |file| while line = file.gets "do find a replace" end "Here I want to write to a new file" end As you can see I want to write a new file with the output. How can I do this?

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• Integer to Character conversion in C

  - by nthrgeek

  Lets us consider this snippet: int s; scanf("%c",&s); Here I have used int, and not char, for variable s, now for using s for character conversion safely I have to make it char again because when scanf reads a character it only overwrites one byte of the variable it is assigning it to, and not all four that int has. For conversion I could use s = (char)s; as the next line, but is it possible to implement the same by subtracting something from s ?

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• how do you install a PEAR package on WAMP, Windows 7?

  - by Haroldo

  I've no idea with command line stuff! What i've done: changed my php.ini to phar.require_hash - off ran go-pear.bat so i'm pretty sure i've got PEAR installed, now I'd like to install this package I've tried following the instructions but I really don't know how to do things with cmd.exe, would love some help!

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• What's the role of the data types inside of < > in Java?

  - by Emanuil

  To be more specific, whats the role of the <String> in the following line of code? private List<String> item = new ArrayList<String>();

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• How to mask input in groovy

  - by Zombies

  How can I mask input from the command line? Basic use case: I want to enter a password when prompted, and I need to either see *'s or nothing at all.

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• Cascading dropdownlists in browser-enabled form

  - by Nomz

  Im trying to fill a dropdownlist based on an other one: Departments and SubDepartments. i followed this link: http://www.sharepoint-tips.com/2007/01/infopath-form-services-implementing.html when i try to fill in a form it gives me an error: Request Failed (-- securityException) on this line: q.FileLocation = q.FileLocation + "&FilterField1=Department&FilterValue1=" + GetDepartmentValue(); and the second dropdownlist (subdepartments) is not filtered. Any idea what might be the problem?

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• What's wrong with this Perl regular expression?

  - by neversaint

  I have a lines like this NF419andZNF773 (e=10^-92,). ZNF571 (e=2 10^-14,) What's the regex for extracting the results above so that it gives NF419andZNF773 - 10^-92 ZNF571 - 2 10^-14 I tried this but fail. $line =~ /(\w+)\s\(e=\s(.*),\)/; print "$1 - $2\n";

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• heroku - how to see all the logs

  - by josh

  I have a small app on heroku. Whenever I want to see the logs I go to the command line and do heroku logs That only shows me about 100 lines. Is there not a way to see complete logs for our application on heroku?

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• C++, what does this syntax mean?

  - by aaa

  i found this in this file: http://www.boost.org/doc/libs/1_43_0/boost/spirit/home/phoenix/core/actor.hpp What does this syntax means? struct actor ... { ... template <typename T0, typename T1> typename result<actor(T0&,T1&)>::type // this line thank you

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