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• difference between C(gcc 4.3.2) , C 99 strict(gcc 4.3.2) , C++(gcc-4.0.0-8) ,C++(gcc-4.3.2)

  - by user1139048

  I have the following questions concerning the differences between the four options: What is the main difference between the four options? Which of the above support int64_t or long long without suffix LL. I want a data type of the range 2^63 - 1 If your answer to my second question is not C(gcc 4.3.2) , whether the code I write in C(gcc 4.3.2) for C language will be valid in rest of the three options or do I have to modify something, then what will be those modifications.

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• i++ or i+=1 or i= i+1 which one is better for good performance

  - by Ram

  I have 3 options to increment value of an integer by 1 in a C# application i++ i+=1 i=i+1 The result of all three operations would be same but I would like to know which one would be the best to use if I need to use this statement in an application where the performance is critical.

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• Is it OK to put a standard, pure C header #include directive inside a namespace?

  - by mic_e

  I've got a project with a class log in the global namespace (::log). So, naturally, after #include <cmath>, the compiler gives an error message each time I try to instantiate an object of my log class, because <cmath> pollutes the global namespace with lots of three-letter methods, one of them being the logarithm function log(). So there are three possible solutions, each having their unique ugly side-effects. Move the log class to it's own namespace and always access it with it's fully qualified name. I really want to avoid this because the logger should be as convenient as possible to use. Write a mathwrapper.cpp file which is the only file in the project that includes <cmath>, and makes all the required <cmath> functions available through wrappers in a namespace math. I don't want to use this approach because I have to write a wrapper for every single required math function, and it would add additional call penalty (cancelled out partially by the -flto compiler flag) The solution I'm currently considering: Replace #include <cmath> by namespace math { #include "math.h" } and then calculating the logarithm function via math::log(). I have tried it out and it does, indeed, compile, link and run as expected. It does, however, have multiple downsides: It's (obviously) impossible to use <cmath>, because the <cmath> code accesses the functions by their fully qualified names, and it's deprecated to use in C++. I've got a really, really bad feeling about it, like I'm gonna get attacked and eaten alive by raptors. So my question is: Is there any recommendation/convention/etc that forbid putting include directives in namespaces? Could anything go wrong with diferent C standard library implementations (I use glibc), different compilers (I use g++ 4.7, -std=c++11), linking? Have you ever tried doing this? Are there any alternate ways to banish the math functions from the global namespace? I've found several similar questions on stackoverflow, but most were about including other C++ headers, which obviously is a bad idea, and those that weren't made contradictory statements about linking behaviour for C libraries. Also, would it be beneficial to additionally put the #include <math.h> inside extern "C" {}?

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• Automatic Reply Out of Hours

  - by Inbr3d

  Is there a way i can use a rule or "timer" of some sort to turn on out of office, or enable an auto reply for 1 mailbox (Sales mailbox) within a time period. Reason: We deal with all timezones, we only open 6am-8pm. critical sales are sometimes lost the automatic reply will involve a telephone number for emergency sales. (yes, spam i know) I wish the auto reply to come from "[email protected]" if this is possible. I've lokekd at transport rules, cant see anything. I cant word my question well enough for google to give an answer.

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• DNS lookup fails when forwarding to subdomain

  - by Kitaro

  In order to migrate to a new mailserver with little dns problems/downtime, I have set up a second postfix that is currently accessible on a subdomain mx record, eg. the main postfix accepts mail for [email protected] while the second postfix also accepts mail for [email protected]. I added a forwarding rule to postfix saying that postfix should forward mail destined for [email protected] to [email protected] (for regular local delivery) and to [email protected]. Local delivery still works as expected, but when trying forward the mail to the new mx, postfix appeds the domain part at the end of the forwarding address, resulting in [email protected], which of course fails and the mail bounces. Why does postfix mess with the alias name in that way and how can I turn that of?

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• My textarea won't accept any width attributes.

  - by Kyle Sevenoaks

  Hi, for some odd reason the text area I have in my site won't accept the width I tell it to, I've tried to select it three times in the CSS just to make sure! Here is a jsfiddle example that shows what I want, and here is the page where it doesn't want to work. I have searched through the CSS to find any conflicting textarea properties, but there are none. Thanks for the help!

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• PHP: Collect all variables passed to a function as array?

  - by Industrial

  Hi everybody, I was thinking about the possibility of accessing all the variables that are passed into an function, and merge them into an array. (Without passing variables into an array from the beginning) Pseudo-code: // Call function newFunction('one', 'two', 'three' ) ;// All values are interpreted as a one rray in some way // Function layout newFunction( ) { // $functionvariables = array( All passed variables) foreach ($functionvariable as $k => $v) { // Do stuff } }

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• Distinct by property of class by linq

  - by phenevo

  I have a collection: List<Car> cars=new List<Car> Cars are uniquely identified by CarCode. I have three cars in the collection, and two with identical CarCodes. How can I use LINQ to convert this collection to Cars with unique CarCodes?

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• Masquerade traffic from certain source IP to VPN connection

  - by Shuo Ran

  Network Setup: 10.0.0.1 Router: to internet 10.0.0.70 Server: Ubuntu based server,default gateway is 10.0.0.1 10.0.0.51 PC I created a PPTP connection(interface: ppp0) on Server to a machine on the internet, what I want to do is route all the traffic from certain IP address(10.0.0.51) through the PPTP connection and then to the internet. What I did are: Set the gateway on PC(10.0.0.51) as 10.0.0.70 Enabled ipv4 forward on 10,0,0,70 Add the masquerade rule to iptable: iptables -t nat -A POSTROUTING -o ppp0 -s 10.0.0.51 -j MASQUERADE After that, it seems none of the traffic from 10.0.0.51 be redirected to ppp0, instead these traffic are still going through 10.0.0.1 directly. Any thoughts on it?

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• ModRewrite Domain

  - by Mike Knoop

  I've done a little research into ModRewrite rules and conditions but have not been able to find a satisfactory set of rules/conds which achieve the effect I'm looking for. Essentially, I have a directory on domain A (http://www.domaina.com/dir/) which I would like to redirect to a different directory on domain B (http://www.domainb.com/diff_dir/). Note that I only want to apply the rewrite rule if the user is attempting to access /dir/ on domaina. If they are accessing a different directory or root I do not want to rewrite the URL. Thank you!

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• How to add my network library integration into FBReaderj in android?

  - by newgeek

  Hi , I am new in the field of ANdroid. I am using FBReaderj code for my project. I want to download a book from my website. In FBREADERJ they have integrated with three site. I want to add my own. Any ideas ?? Please Help.. Thanks in Advance

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• Centralizing / Abstracting MSSQL Data from Multiple Tables / Databases

  - by davemackey

  If one has a number of databases (due to separate application front-ends) that provide a complete picture - for example a CRM, accounting, and product database - what methods are available to centralize/abstract this data for easy reporting? Essentially, I'm wondering if there is a way to automatically pull data from multiple databases into a central repository that is continuously updated from the three databases and which can be used for reporting? I'm also open to alternative best practice suggestions?

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• Does F# have an equivalent to Haskell's take?

  - by McMuttons

  In Haskell, there is a function "take n list" which returns the first n elements from a list. For example "sum (take 3 xs)" sums up the first three elements in the list xs. Does F# have an equivalent? I expected it to be one of the List-functions, but I can't spot anything that seems to match.

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• Adding Names to columns in a matrix

  - by Jeff

  I have my matrix I have created, a pic found here. http://s816.photobucket.com/albums/zz83/gavakie/?action=view&current=matrix.jpg The first three column what whats being grouped by but I can had the names of those columns, how can I do that in Reporting Services?

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• How can I forward Mailer Daemon notifications in Outlook 2000?

  - by Elvith

  I have a rule in Outlook 2000 which states that any incoming message should be forwarded to another adress (The mailaccount is only used to send automatic alerts and notifications of an application, answers to this adress should be forwarded to the admin of this application). When the application tries to send an eMail to a non existent adress, the resulting Mailer Daemon notification won't be forwarded and the admin of the server will notice this problem very late (if ever). Is there a way to forward such messages to another adress? The problem seems to be, that Exchange delivers such notifications as "Report" but the rules will only apply to "Messages". Thanks in advance!

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• Apache not responding in amazon ec2

  - by Viren

  Well this might sound awkward but I facing terrible issue with my Amazon EC2 instance one of the finding I see is that apache is not responding on port 80 which is weird because I can't even find the incoming packet to port 80 in tcpdump output As per the security rules all security rules are in place correctly at least in amazon console I restarted the apache to listen to port 8080 and added port 8080 and add 8080 to security rule and everything work but I cant just able to understand as to why the port 80 not responding Needless to say since port 8080 is responding all my CNAME and A-record is working too UPDATE No firewall issue either I just cross check the iptables and list is empty Can some share a light on this

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• Can't connect to web-server on local host behind NAT

  - by eyeinthebrick

  I got Ubuntu as host. I'm running a web-server on http://192.168.199.8:80. It is accessible from the local network, but when I'm trying to reach it by external IP, I go to my router's web-page. I arranged port forwarding on router for port 80 to my local IP 192.168.199.8. Unfortunately web-server is still unavailable via external IP. I checked whether the port is open via http://www.canyouseeme.org/. As it showed that the port is unavailable, I changed port used to 3659 (not forget to rearrange port forwarding rule). Although http://www.canyouseeme.org/ shows that port 3659 is open, I still can't reach my web-server. Where can the problem be?

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• How can we get an autogenerated Id from the Table While Inserting?

  - by SAHIL SINGLA

  How can we get an autogenerated Id from the Table While Inserting? I have three tables Project ProjectXMilestone Milestone and on Insert of Milestone I also want to insert a row in 2nd Table so I need MilestoneId?so how can I get that? I am using Linq.

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• highlight dicritic arabic text

  - by user602720

  hi this plugin to highlight words but I'm trying to highlight diacritic arabic word like this example : jsfiddle.net/z8PUG/84/ but its not working i tested for three arabic characters '?': '[\u0645\u064b\20\u0645\u064c\20\u0645\u064d\20\u0645\u064e\20\u0645\u064f\20\u0645\u0650\20\u0645\u0651\20\u0645\u0652\20\u0645\u0653]', '?': '[\u062d\u064b\20\u062d\u064c\20\u062d\u064d\20\u062d\u064e\20\u062d\u064f\20\u062d\u0650\20\u062d\u0651\20\u062d\u0652\20\u062d\u0653]', '?': '[\u062f\u064b\20\u062f\u064c\20\u062f\u064d\20\u062f\u064e\20\u062f\u064f\20\u062f\u0650\20\u062f\u0651\20\u062f\u0652\20\u062f\u0653]',

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• SPF from neutral to positive

  - by denonth

  I need to be able to configure SPF rule for my domain. Problem is that I can normally receive all the emails. But when I send to some recipients they receive it as spam. In the mail failure delivery I always see SPF as neutral. How can I change this settings? I found a Microsoft tool program and I get something like this: v=spf1 a mx mx:mail.code2future.com +all Where do I insert this? I have cPanel Pro 1.0 (RC1) Thank you

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• IIS 7.5 Site being redirected from hostname to IP

  - by TuxOtaku

  So here's the problem. I have a site in IIS that is being redirected from the site's hostname to its IP address. The problem is, I haven't even set up redirects at all for the site; and yet when I analyze the headers that come through as the page loads, I see clear as day, "302 Temporary Redirect". What could be causing this? I thought perhaps it was something in my application's DB (it's a PHP/MySQL application), but I have ruled that out. I also thought that it might be a rewrite rule somewhere, so I deleted all my rewrite rules as well.

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• Best way to save to nsuserdefaults for custom class?

  - by cannyboy

  If I have a custom class Person which has three variables (which are propertized and synthesized): NSString* theName; float* theHeight; int theAge; Person instances are stored in an NSArray 'Group'. There is only one Group. What is the best way of string and loading the Group in NSUserDefaults? (bearing in mind that float and int are not legal for NSUserDefaults)

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• Query to check the consistency of records

  - by orunner

  I have four tables TableA: id1 id2 id3 value TableB: id1 desc TableC: id2 desc TableD: id3 desc What I need to do is to check if all combinations of id1 id2 id3 from table B C and D exist in the TableA. In other words, table A should contain all possible combinations of id1 id2 and id3 which are stored in the other three tables.

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• TinyMCE: Looking for line count solution.

  - by Thariama

  I am looking for a plugin or code with a functionality like the "line count" or "line number" in common editors. The line number usually is shown on the left border of the editors content. Anyone got an idea how to do it with TinyMCE? Example: line number | content line number one number two 3. one line skipped (three is empty) 5. contents end

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• Increment an index that uses numbers and characters

  - by Martin

  I have a string based code that can be either two or three characters in length and I am looking for some help in creating a function that will increment it. Each 'digit' of the code has a value of 0 to 9 and A to Z. some examples: the first code in the sequence is 000 009 - next code is - 00A 00D - next code is - 00E AAZ - next code is - AB0 the last code is ZZZ. Hope this makes some sense.

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