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• #pragma once Versus #if !defined MYHEADER_INCLUDED_

  - by bdhar

  What is/are the differences (in performance/usability/functionality) in using #pragma once and #if !defined MYHEADER_INCLUDED_ constructs? Or what is the difference between the two?

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• Twitter Bootstrap: How to make top fixed navbar stay in container and not stretch?

  - by Jryl

  I'm working with Twitter Bootstrap and the regular navbar you see in the guides: http://twitter.github.io/bootstrap/components.html#navbar I don't want the navigation to stretch all the way left or right but stay where I can see both sides just like in the guide. The only difference is it would be fixed to the top. I was wondering, how do I make this become a fixed navbar as if I was using the navbar-fixed-top class?

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• Reflection: different ways to retrieve property value

  - by jules

  I'm retrieving an IEnumerable list of properties via following code: BindingFlags bindingFlag = BindingFlags.Instance | BindingFlags.Public; var dataProperties = typeof(myParentObject).GetProperties(bindingFlag); Then I'm iterating through the list and retrieving the value for each property. I've come across two different approaches to doing this, and just wondered what the difference is between them: 1) object propertyValue = property.GetGetMethod().Invoke(myObject, null); 2) object propertValue = property.GetValue(myObject, null)

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• Capture Stored Procedure print output in .NET (Different model!)

  - by Workshop Alex

  Basically, this question with a difference... Is it possible to capture print output from a TSQL stored procedure in .NET, using the Entity Framework? The solution in the other question doesn't work for me. It works with the connection type from System.Data.SqlClient but I'm using the one from System.Data.EntityClient which does not have an InfoMessage event. (Of course, I could just create an SQL connection based on the Entity connection settings, but prefer to do it directly.)

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• Java: "implements Runnable" vs. "extends Thread"

  - by goosefraba19

  From what time I've spent with threads in Java, I've found these two ways to write threads. public class ThreadA implements Runnable { public void run() { //Code } } //with a "new Thread(threadA).start()" call public class ThreadB extends Thread { public ThreadB() { super("ThreadB"); } public void run() { //Code } } //with a "threadB.start()" call Is there any significant difference in these two blocks of code?

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• Why does this eval not work in Ruby

  - by Anil

  Can you explain this? I want to eval values and calculations from two different sources. One source gives me the following info(programmatically): 'a = 2' The second source gives me this expression to evaluate: 'a + 3' This works: a = 2 eval 'a + 3' This also works: eval 'a = 2; a + 3' But what I really need is this, and it doesn't work: eval 'a = 2' eval 'a + 3' I would like to understand the difference, and how can I make the last option work. Thanks for your help.

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• Dynamically resizing CFWINDOW to fit content

  - by Ryan French

  Hi all, Am currently working on a site that uses a lot of cfwindow objects and I was wondering if anyone knows of a way to dynamically resize the window so that all the content fits in without the need for scroll bars. I have tried using the overflow=visible configuration but it doesnt seem to make a difference. Thanks in advance for any advice.

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• C# Lambda expression syntax, is brackets necessary?

  - by DevNovice

  I'm new in C# and earlier I saw the lambda expression is like (params) = { expression;} but in LINQ, I saw examples like IEnumerable customerFirstNames = customers.Select(cust = cust.FirstName); No brackets. Are they the same or is there any difference? Thanks a lot.

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• Excel Merge() vs MergeCells

  - by sleepp

  Hi, I'm using VSTO, C#, and Excel but VBA probably applies here as well. What's the difference between calling the Merge(missing) method on a range and setting the MergeCells property to true? Does Merge() fail more often? Thanks!

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• Creating instance in java class

  - by aladine

  Please advise me the difference between two ways of declaration of java constructor public class A{ private static A instance = new A(); public static A getInstance() { return instance; } public static void main(String[] args) { A a= A.getInstance(); } } AND public class B{ public B(){}; public static void main(String[] args) { B b= new B(); } } Thanks

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• Count days within a month from date range

  - by G. Muqtada

  I have three date ranges in mysql table as follow from 2013-09-29 to 2013-10-02 from 2013-10-14 to 2013-10-16 from 2013-10-28 to 2013-11-05 I want to count only days that occur in Month of October, for example from first range (2013-09-29 to 2013-10-02) I should get difference of two days (1st and 2nd October) , and it should ignore days from September month, Finally i want to count total days in a given month from above date ranges. Can it be done from direct mysql query. or any short PHP logic.

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• What is the use of different types of function call in js?

  - by sparrow

  I have seen different type of js function call like function aTestFunction(param) { // function body } and also: aTestFunction = function(param) { // function body } what is the difference in above to implementaion? Also, i found that jquery/prototype js framework uses the second implementation in most cases. Is there any special reason for that? Sorry, I am a novice so this question may be silly to someone but will be helpful me if any guru out there helps me with this silly question. Thanks in advance.

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• Question about references in java

  - by kuang

  I want to know what the difference between : String s = "text"; and : String s = new String("text");

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• localstorage vs html5?

  - by Mark

  What's the difference between local/html5 on this page: http://code.google.com/p/jquery-jstore/wiki/DefaultEngines I was under the impression that I could use localstorage on Chrome, but looks like that's not the case? Some elucidation would be greatly appreciated. Thanks.

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• Page rendering time are not steady in IE6

  - by dan

  I have to support IE6 and I calculate rendering time by creating a timestamp in javascript at the beginning of the page and doing the difference when document.ready is fired in jQuery. If I do 3 pages load, the rendering times in milliseconds can look like this : page 1 : 735, 2672, 734 page 2 : 3063, 1516, 3375 page 3 : 8281, 2531, 3703 Why is that? How can I have more consistency?

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• FormsAuthentication AuthCookie data type

  - by FreshCode

  Does the original data type of the username string in a call to FormsAuthentication.SetAuthCookie(...) make any difference with regards to security or code maintainability? As I understand it, the cookie is encrypted and used to identify a user on each request. I'm curious whether it should affect the design of the primary key on my Users table in my database, eg. Guid vs int or a unique username string.

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• Why is ++i considered an l-value, but i++ is not?

  - by yesraaj

  Why is ++i is l-value? and i++ not Initially there were 2 questions one was removed since that was exact duplicate. So don't down vote the answers that were answering difference between pre- and post-increment.

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• using makefile targets to set build options

  - by leo grrr

  This is either trivial or runs counter to the philosophy of how make should be used, but I'd like to have a command line that reads as "make debug" rather than "make DEBUG=1". I tried creating a phony target called debug that did nothing except set the DEBUG variable, but then there was a difference between "make debug build" and "make build debug"--namely that in one case, the variable got set after the build happened. Is there a way to give certain targets precedence? Thanks for your help.

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• Buisness Rule and Process Management?

  - by elgcom

  After some searching in google and wikipedia, I still can not get a clear image about the "difference" between BRMS (Business Rule Management System) and BPM (Business process management)/workflow system. can those two concepts do the same thing from each other? (theoretically) A "rule" can be modeled as a "process" as well. isn't it?

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• Is USB 2.0 sufficient for streaming video off of an external hard drive?

  - by Alex

  Or should I pony up for a usb 3.0 external hard drive? (my mobo will support it) I intend to only use it for playing videos if that makes a difference. I know close to nothing about hardware so let me know if you need more info.

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• comparing two text files storing it in third one python

  - by tazim

  Hi, I need to compare two files and redirect the different lines to third file. I know using diff command i can get the difference . But, is there any way of doing it in python ?

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• (Why) does Tomcat/Java perform better on Linux than on Windows?

  - by ripper234

  I just read this (one) study in which Tomcat under Linux outperformed Windows. From your experience, is this generally true? Any deep reason that could explain the performance difference?

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• How to write 2 statements that differ just by Operator type in VB.NET

  - by Richard Bysouth

  Hi I have the following code sample, where the only difference between the 2 parts of the If statement is the less than/greater than operators. Is there a better way to write this? Could almost do with being able to define an Operator variable. If myVar = true Then Do While (X < Y) 'call Method A Loop Else Do While (X > Y) 'call Method A Loop End If thanks

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• Adobe AIR canvas dimensions messed up

  - by Nikhil

  I'm messing about with Canvas in Adobe Air. But their seems to be some issue with the mouse coordinates. The more I click towards the right, the difference between the draw position and actual click increases. My code is Wb.canvas.fillRect(evt.clientX-canvasTag.clientX, evt.clientY-canvasTag.clientY, 50, 50);

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• What trick does Java use to avoid spaces in >> ?

  - by kunjaan

  In the Java Generic Book, while contrasting the difference between C++ Templates and Java Generic says: In C++, a problem arises because without the space denotes the right-shift operator. Java fixes the problem by a trick in the grammar.) What is this trick?

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