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• how to traverse a file in python and c++ in backward way? And also store data in backward (bottom to

  - by mekasperasky

  Suppose i want to store 3 lines in a file both in python and C++ . I want to store it like this aaa bbb ccc .. But i am giving ccc input first then bbb then aaa. How will I traverse the file from bottom to top and also store from bottom to top/?

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• Any wrapping viewgroup?

  - by user325737

  I am looking for Wrappable ViewGroup just like what TextView do. I need this for layout. This should be something like LinearLayout but wrappable to multiple lines. Or do I need something custom?

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• Multi-Dimensional Array and ArrayIndexOutOfBoundsException

  - by notset

  Hello, I have a strange problem which I can't fix: A field: private boolean[][][] gaps; Constructor (1st line): gaps = new boolean[NOBARRICADES][WIDTH][HEIGHT]; Constructor (2nd line): for (int i = 0; i < NOBARRICADES; i++) { JAVA throws an error for the 2nd line, saying: Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException Does it have anything to do with JAVA syntax (the mistake is in these lines of code) or I should look for the problem somewhere else?

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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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• Workflow for reading and writing files

  - by AIR_PhillipSenn

  In Workflow for reading and writing files the authors use these two lines of code: var file = air.File.documentsDirectory; file = file.resolvePath("AIR Test/testFile.txt"); But I think that it's using one variable for two different meanings, isn't it? Wouldn't it be better to write them as: var myDocumentsDirectory = air.File.documentsDirectory; var myTestFile = myDocumentsDirectory.resolvePath("AIR Test/testFile.txt");

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• C++ Arrays manipulations (python-like operations)

  - by Linai

  Hi Guys, I'm trying to figure out the best C++ library/package for array manipulations in a manner of python. Basically I need a simplicity like this: values = numpy.array(inp.data) idx1 = numpy.where(values > -2.14) idx2 = numpy.where(values < 2.0) res1 = (values[idx1] - diff1)/1000 res1 = (values[idx2] - diff2)*1000 In python it's just 5 lines, but the simplest way in C++ i can think of is quite a number of nested loops. Pls advise..

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• How to increase mouse scroll wheel speed in NetBeans?

  - by smartj

  Loving the switch from Eclipse to NetBeans. Anyone know how to increase the number of lines scrolled using the mouse wheel in the editor window? Currently it only goes one at a time -- i'd like it to do at least three.

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• What is your most useful C/C++ snippet?

  - by maddizzyro

  Hello all, It seems that every project has an "util" module with various code snippets used throughout other files and which don't fit any particular pattern. I want to improve my "util" library, so please post here the most useful class / function / macro that you use in all your C/C++ projects. Please keep the entries small (under 100 lines) and give only one example per post. Thank you.

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• Variables combined with && and ||

  - by gcc

  What do the last lines mean? a=0; b=0; c=0; a && b++; c || b--; Can you vary this question to explain with more interesting example?

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• MySQL: How to do a conditional update?

  - by Tom

  Hi, I'm trying to a create an update statement along the following lines: TABLE car: id | owner_id | type | status An owner can have multiple cars. UPDATE car c SET c.type = 1 WHERE c.owner_id IN ($ids) AND c.status = [1 IF IT EXISTS, ELSE 0] $ids is reasonably small (under 50 values). It seems simple but I can't seem to get my head around it because I can't use a SELECT subquery with an UPDATE to the same table. Anyone? Thanks

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• How to directly access a certain part of a text file in g++?

  - by Phenom

  I have a text file containing a number of records. Each record is stored on a single line that is 100 characters long. Let's say I want to directly access the nth record. I could do it using a for loop, reading in n lines until I get to the record. But how could I access it directly?

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• Git: Add part of (changed) file to index *by line numbers*

  - by RobM

  Is there a git command to add differences within a range of line-numbers to the index? I want to be able to select lines in my editor and run a macro to add any changes in the selection to the index.

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• to count specific things within a c++ code

  - by ace

  i know this connects to my original question but i put it here so it is seen by people afresh. after passing each line of the code into a string, how can i count the following things: --the number of standalone functions and member functions per class --the number of lines per function?

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• possible to change a script when it is running?

  - by Daniel

  Suppose a script has 1000 lines, and the 10 line has a command takes a long time to run and when I find it is running line 10, I find I need to change line 100, is it possible to do that without stop the script first? We can also stop a process by using command pstop, but I don't know how to let the process to re-read the script and continue to run from where it paused.

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• Using C# to read/write from excel spreadsheet.

  - by Aaron

  Hi there, I need to make a program that writes some data to an excel spreadsheet. Something basic along the lines of First name, last name, phone number, e-mail per row with each category in its own column. I don't even know where to start. If someone could tell me which assemblies to reference and maybe point me to a website or a book that covers writing/reading data from an excel spreadsheet via a c# program that would be great. Many thanks.

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• Why is this span above the text? I want it beside the text.

  - by alex

  <td valign="center" colspan="2"> <a href="" class="table_desc" > <span class="desc_info_butt"></span> </a> text here </td> .desc_info_butt{ background:url(Description_Button.png) top left no-repeat; height:16px; width:16px; display:block; } For some reason, the image and text appear on two different lines!~

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• C++ std::string and UTF-8

  - by poiloi

  Hello, I just want to write some few simple lines to a text file in C++, but I want them to be encoded in UTF-8. What is the easiest and simple way to do so? Thanks

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• Dealing with errors during a copy from

  - by jlfenaux

  I've to import a file from an external source to a postgresql table. I tried to do it with \copy from , but I keep getting errors (additional columns) in the middle of the file. Is there a way to tell postgresql to ignore lines containing errors during a "\copy from" ? Thanks

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• Python module shared between multiple products

  - by MattyW

  I'm working on a python class that is being shared between two products. 90% of the functionality applies to both products. For the 10% that's different the code is littered with this kind of thing: #Start of file project = 'B' #Some line of code if project == 'A': import moduleA elif project == 'B': import moduleB #Many lines of code if project == 'A': print moduleA.doA(2) elif project == 'B': print moduleB.doB(2) This doesn't seem very elegant or very readable, has anyone encountered this sort of thing before? Are there better ways of doing it?

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• Count of Sums possibly using group_by

  - by Daniel Johnson

  Say you have a user table and an order table which references user (user has_many orders) and contains an item count field. How could you efficiently ask "how many uses ordered how many items?" That is, to generate something along the lines of: Number of users | sum of items ------------------------------- 5 users | 1 item 4 users | 5 items 1 user | 7 items Thanks in advance.

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• How to structure an application written in a functional language?

  - by fig-gnuton

  How is code commonly organized in FP applications? Along what lines do you separate files, modules, directories, etc.?

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• How to access a (shadowed) global function in ruby.

  - by yngvedh

  Hi, I was wondering how to access a global function fn in ruby from a class which also defined a method fn. I have made a workaround by aliasing the function like so: def fn end class Bar alias global_fn fn def fn # how to access the global fn here without the alias global_fn end end I'm looking for something along the lines of c++'s :: to access global scope but I can't seem to locate any information about it. I guess I don't know specifically what I'm looking for.

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• negative color with glBlendFunc() ?

  - by Newbie

  i want my lines to be drawn with negative color (taken from the screen under the line), i just didnt understand how the blending works, looked at docs etc, tested 50 combinations and so on. started to think its not possible at all... could someone just give the two values, im tired of thinking how it works. thanks,

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• Remove all arbitary spaces before a line in Vim

  - by Farslan

  I'v written a plugin where it comes to parsing a XML tag. The content inside the tag is indented and when i copy the parsed string into the file it's gettting like: Example line This is part of the parsed line Thats goes one End of line What I want is to remove all spaces in front of these lines, the final text should be Example line This is part of the parsed line Thats goes one End of line I've tried to use = but it doesn't work the way U want. How can I do that with minimal key strokes ?

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• Is learning Dependency Injection worth it for someone that usually only does small projects(5-20k li

  - by devoured elysium

  I just usually do applications for myself as a hobby. It looks like DI frameworks have a big momentum in the community, so I thought maybe I should learn it to improve my coding skills. From what I understand, it seems to be geared more towards big projects. Is it still a good idea to use it for example in a 5k lines project? Thanks

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