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• round() for float in C++

  - by Roddy

  I need a simple floating point rounding function, thus: double round(double); round(0.1) = 0 round(-0.1) = 0 round(-0.9) = -1 I can find ceil() and floor() in the math.h - but not round(). Is it present in the standard C++ library under another name, or is it missing??

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• Detecting if two png images are different

  - by Benjol

  (Context: running autohotkey scripts to try and automate some tests. The plan is to take screenshots and then compare them to 'standard' screenshots to detect if output has changed). Is there a 'clever' way to check if two png images are different? By clever I mean other than comparing them byte by byte? (after having compared their size, obviously)

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• Send device token with HTTP POST

  - by tech74

  Hi, we need to send an http post from an iphone device to our server with some info which the device token (APNS) which we want to store. How on the server do you read the HTTP post and store what is in it? We just have a standard ISP hosted server which currently just has a website. Thanks

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• What instance type should I choose?

  - by cute

  To run video chat service? High-Memory or High-CPU? And, guess Standard isn't suitable?

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• Painless way to trim leading/trailing whitespace in C?

  - by coledot

  Is there a clean, preferably standard method of trimming leading and trailing whitespace from a string in C? I'd roll my own, but I would think this is a common problem with an equally common solution.

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• Check if a layout exists in Rails?

  - by viatropos

  Is there a standard way to check if a view layout exists from within a Controller in Rails? I'm trying to allow the user to determine the layout, but it needs to exist first.

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• webapplication login security

  - by user121196

  is it standard practice to send login information/account registration information over https? or is it an overkill?

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• Child segmentation fault when doing SOAP request in php 5.1.6

  - by user350691

  I get a "[notice] child pid 26701 exit signal Segmentation fault (11)" in apache log when I try to do a simple soap request using standard php soap library. I'm running php 5.1.6 on Centos 5.4

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• possible to create custom scrollbar graphics without flash?

  - by Joel

  A friend is wanting me to help her convert her flash based website to html. She has an embedded textbox with a scrollbar that is using a flower instead of a normal scrollbar. Avoiding the obvious question of why a user would want a non-standard element to do this task, is it possible to do this without flash?

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• How to encode a 8 byte block using only digits (numeric characters)?

  - by Hemant

  I need to encode streams of 8 byte such that encoded stream has only digits (zero to nine) in them. Are their any standard encoding mechanism for doing this? If there are multiple ways to do it, which one is efficient in terms of length of encoded string (shorter is better)?

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• JIRA: Generating per-user time report?

  - by John

  Sorry if SO is not the best place, but I have time-tracking enabled in JIRA and want to be able to generate a time-report for each user over a given date range. The only time-tracking report option I have is very limited and doesn't do what I want, is it possible through standard functionality or a free plugin perhaps?

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• Where do I localize strings in some of the menu items with Netbeans?

  - by Spoike

  So I made a standard swing application in Netbeans 6.8 and I can't find where the resource file is for File/Exit in the projects view. All the other resource files can be found in the <project>/resources. Am I missing something?

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• Implement "tail -f" in C++

  - by Hamming

  Hi! I want to create a small code in C++ with the same functionality as "tail-f": watch for new lines in a text file and show them in the standard output. The idea is to have a thread that monitors the file Is there an easy way to do it without opening and closing the file each time?

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• C++: Initialization Order for Member Classes

  - by Nikhil

  In the following code, when the ctor of X is called will the ctor of A or B be called first? Does the order in which they are placed in the body of the class control this? If somebody can provide a snippet of text from the C++ standard that talks about this issue, that would be perfect. class A; class B; class X { private: A a; B b; }

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• will all windows 7 versions be suitable for a development machine?

  - by Blankman

  So windows premium/standard/ultimate, are these versions all ok for a development computer? ie. do any prevent installations of things like sql server, vs.net,etc?

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• can i use WindowBuilder (java visual editor Eclipse Plugin ) Without GWT Support ??

  - by Salamon

  hello , I'm a little bit confused about it . it seems that it is integrated with Google web kit tools to build Google web apps . but can i use to build a Gui for standard java app , (like netbeans) ?? i know it sounds silly but i spend a lot of time to know if is it possible or not but i couldn't know. notice that i am a mac user , ( WindowBuilder on mac seems not fully supported ) . thanks in advance .

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• How can I fix a locale warning from perl?

  - by xain

  When I run perl, I get the warning: perl: warning: Setting locale failed. perl: warning: Please check that your locale settings: LANGUAGE = (unset), LC_ALL = (unset), LANG = "en_US.UTF-8" are supported and installed on your system. perl: warning: Falling back to the standard locale ("C"). Any ideas on how to fix it?

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• File count in a directory using C++

  - by harik

  How do I get the total number of files in a directory by using C++ standard library? Any help is appreciated.

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• Use C# to convert a .XFDL file to .PDF

  - by mstrickland

  Does anyone know of a way using C# to convert a XFDL file to a PDF file that is viewable in a standard PDF viewer (Adobe Reader and the like)? Thanks.

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• Can someone explain what does <? super T> mean and when should it be used and how this construction

  - by Roman

  I'm using generics rather long time but I've never used construction like List<? super T>. What does it mean? How to use it? How does it look after erasure? I also wonder: is it something standard in generic programming (template programming?) or it's just a java 'invention'? Does c#, for example, allow similar constructions?

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• C++: Life span of temporary arguments?

  - by shoosh

  When creating a new instance of a MyClass as an argument to a function like so: class MyClass { MyClass(int a); }; myFunction(MyClass(42)); does the standard make any grantees on the timing of the destructor? Specifically, can I assume that the it is going to be called before the next statement after the call to myFunction() ?

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• echo that outputs to stderr

  - by BCS

  Is there a standard bash tool that acts like echo but outputs to stderr rather than stdout? I know I can do echo foo 1>&2 but it's kinda ugly and, I suspect, error prone (e.g. more likely to get edited wrong when things change).

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• How to port a simple application (which uses only stadard libc) to iPhone OS ?

  - by psihodelia

  There is a simple application written in C, which uses only standard C library functions (from stdio, stdlib, etc.) and Makefile+GCC to build it. Now, I wanna port it to iPhone OS for iPhone/iPads. Will it be seamless or are there any possible incompatibility issues?

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• C++ return object

  - by Pauff

  I have a class that has a vector of objects. What do I need to do to return one of this objects and change it outside the class, keeping the changings? Is it possible to do with regular pointers? Is there a standard procedure? (And yes, my background is in Java.)

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• Online Hotel Booking System, Simultaneous Booking?

  - by KiiroSora09

  I'm asked to create an online booking system with online payment and I'm wondering what to do in the case when 2 customers booked for the same room(s) at the same time. For Example: At the same time: Customer1 and Customer2 booked for a standard room which only has 1 room available. (The Room availability will display that there is still 1 room available). And then they hit the 'confirm' button at the same time.

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