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  • Obtaining C++ Code Coverage

    - by anon
    I'm on Linux. My code is written in C++. My program is non-interactive; it runs as "./prog input-file", processes the file, and exits. I have various unit tests "input-file0, input-file1, input-file2, ..." For designing new unit tests, I want to know what lines of code existing tests do not cover. Question: Given that I control how "prog" is compiled/run; how can I get list of the lines of code that "./prog input-file" does not hit? Thanks!

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  • Python with Wiimote using pywiiuse module

    - by Anon
    After seeing the abilities and hackibility of wiimotes I really want to use it in my 'Intro to programming' final. Everyone must make a python program and present it to the class. I want to make a game with pygame incorporating a wiimote. I found pywiiuse which is a very basic wrapper for the wiiuse library using c types. I can NOT get anything beyond LEDs and vibrating to work. Buttons, IR, motion sensing, nothing. I've tried different versions of wiiuse, pywiiuse, even python. I can't even get the examples that came with it to run. Here's the code I made as a simple test. I copied some of the example C++ code. from pywiiuse import * from time import sleep #Init wiimotes = wiiuse_init() #Find and start the wiimote found = wiiuse_find(wiimotes,1,5) #Make the variable wiimote to the first wiimote init() found wiimote = wiimotes.contents #Set Leds wiiuse_set_leds(wiimote,WIIMOTE_LED_1) #Rumble for 1 second wiiuse_rumble(wiimote,1) sleep(1) wiiuse_rumble(wiimote,0) #Turn motion sensing on(supposedly) wiiuse_motion_sensing(wiimote,1) while 1: #Poll the wiimotes to get the status like pitch or roll if(wiiuse_poll(wiimote,1)): print 'EVENT' And here's the output when I run it. wiiuse version 0.9 wiiuse api version 8 [INFO] Found wiimote [assigned wiimote id 1]. EVENT EVENT Traceback (most recent call last): File "C:\Documents and Settings\Nick\Desktop\wiimotetext.py", line 26, in <mod ule> if(wiiuse_poll(wiimote,1)): WindowsError: exception: access violation reading 0x00000004 It seems each time I run it, it prints out EVENT 2-5 times until the trace back. I have no clue what to do at this point, I've been trying for the past two days to get it working. Thanks!

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  • Computer Generated Vocals

    - by anon
    Is this even possible? I.e. suppose you were given: 1) Lyrics to a song. 2) Background music of a song. 3) Timing of what syllables should be uttered when. 4) What note what each syllable should hit. Given the above, is it possible to automatically generated the vocals via a computer program? Thanks!

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  • Textbased issue-tracker/todo list for Git?

    - by anon
    I've been managing all of my todo-lists as ~/git-repo/todo which is kept under git. THen I add/delete files from the todo list, and have git autocommit all changes. However, I feel there should be more powerful tools. Besides "cil" and git-issues [neither of which I've tried], what tools are available? PS I want something that's entirely text/command line based. Thanks!

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  • OpenGL Diffuse Lighting Shader Bug?

    - by anon
    The Orange book, section 16.2, lists implementing diffuse lighting as: void main() { vec3 N = normalize(gl_NormalMatrix * gl_Normal); vec4 V = gl_ModelViewMatrix * gl_vertex; vec3 L = normalize(lightPos - V.xyz); gl_FrontColor = gl_Color * vec4(max(0.0, dot(N, L)); } However, when I run this, the lighting changes when I move my camera. On the other hand, when I change vec3 N = normalize(gl_NormalMatrix * gl_Normal); to vec3 N = normalize(gl_Normal); I get diffuse lighting that works like the fixed pipeline. What is this gl_NormalMatrix, what did removing it do, ... and is this a bug in the orange book ... or am I setting up my OpenGl code improperly?

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  • Artistic aspects of UI?

    - by anon
    Consider a single button. At one extreme, we have a black OpenGL window, with: outline (in white) of a rectangle bitmap remdered font inside of it, saying "Ok" At the other extreme, we have Mac OS X, a button that is: well rounded has some gradient showing light effects on it nice antialiased "OK" soft shadow of some sort These two UIs present very very different user experiences. The former says "This is from the 80s" the latter says "this is professional". This is something I do not understand well as a programmer (and don't know where to learn about this). Does anyone know of a good technical resource for this? [I'd prefer things that draws upon psychology / perception literature to say why to do something rather than design books that just says "use color XYZ with a gradient of blah"]

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  • What "already invented" algorithm did you invent?

    - by Guy
    In my question Insert Update stored proc on SQL Server I explained an efficient way of doing an insert/update - perhaps THE most efficient. It's nothing amazing but it's a small algorithm that I came up with in a mini-Eureka moment. Although I had "invented" it by myself and secretly hoped that I was the first to do so I knew that it had probably been around for years but after posting on a couple of lists and not getting confirmation I had never found anything definitive written up about it. So my questions: What software algorithm did you come up with that you thought that you'd invented? Or better yet, did you invent one?

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  • How do you use "not" in xpath

    - by Guy
    I want to write something of the sort: //a[not contains(@id, 'xx')] (meaning all the links that there 'id' attribute doesn't contain the string 'xx') I can't find the right syntax. Thanks

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  • HOWTO - Compare a date string to datetime in SQL Server?

    - by Guy
    In SQL Server I have a DATETIME column which includes a time element. Example: '14 AUG 2008 14:23:019' What is the best method to only select the records for a particular day, ignoring the time part? Example: (Not safe, as it does not match the time part and returns no rows) DECLARE @p_date DATETIME SET @p_date = CONVERT( DATETIME, '14 AUG 2008', 106 ) SELECT * FROM table1 WHERE column_datetime = @p_date Note: Given this site is also about jotting down notes and techniques you pick up and then forget, I'm going to post my own answer to this question as DATETIME stuff in MSSQL is probably the topic I lookup most in SQLBOL. Update Clarified example to be more specific. Edit Sorry, But I've had to down-mod WRONG answers (answers that return wrong results). @Jorrit: WHERE (date>'20080813' AND date<'20080815') will return the 13th and the 14th. @wearejimbo: Close, but no cigar! badge awarded to you. You missed out records written at 14/08/2008 23:59:001 to 23:59:999 (i.e. Less than 1 second before midnight.)

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  • Grails/Groovy taglib handling parsing dynamically inserted tags.

    - by Dan Guy
    Is there a way to have a custom taglib operate on data loaded in a .gsp file such that it picks up any tags embedded in the data stored in the database. For instance, let's say I'm doing: <g:each in="${activities}"> <li>${it.payload}</li> </g:each> And inside the payload, which is coming from the database, is text like "Person a did event <company:event id="15124124">Event Description</company:event>" Can you have a taglib that handles company:event tags on the fly?

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  • How to setup .htaccess to rewrite to different folder

    - by Guy
    I'm moving my site to a new host but I need to have my current server continue to handle requests (not all files can be moved to the new server). So I added a parked domain to my old server (old.mydomain.com) and I want all requests to it to be written to the files from the old site. My old site (mydomain.com) was hosted internally in a folder (/public_html/mydomain/) and I want all requests to old.mydomain.com to be rewritten to the same folder. So if mydomain.com/blog was internally at /public_html/mydomain/blog I now want old.mydomain.com/blog also to reach /public_html/mydomain/blog. Here is the .htaccess that I'm trying to use: RewriteCond %{HTTP_HOST} ^old\.mydomain\.com/* RewriteRule ^(.*)$ mydomain/$1 [NC,L] but for some reason as soon as I add the $1 in the rewrite rule I get an internal error. Any ideas?

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  • How can I generate HTML tables in Perl?

    - by anon
    I need to create a 2 tables in HTML format. Each has 5 rows: 1st Table 1st row has FRUITS in it, occupying all columns 2nd row has January(month), occupying all columns 3rd row has names of some 6 fruits (apple, orange, grapes,...)These names do not change. so this row has 6 columns 4th row has rates for each fruit ( 10,20,30..) so this has 6 columns. 5th row has corresponding message for each fruit showing as Available or not. 2nd Table If it is available the background color for the cell should be green and if not RED. 1st row has VEGETABLES in it, occupying all columns 2nd row has February(month), occupying all columns 3rd row has names of some 6 vegetables (tomato, potato..)These names do not change. so this row has 6 columns 4th row has rates for each vegetable ( 10,20,30..) so this has 6 columns. 5th row has corresponding message for each vegetable showing as Available or not.If it is available the background color for the cell should be green and if not RED. All this data is read from a file having a particular format, it is <name of fruit/vegetable price <available or not The names of fruits and vegetable do not change , it will be same for both the tables. However, it might be possible that data for a particular fruit/vegetable is not present. if it is not present the the column for that should show N/A with white background. I cannot use MIME:Lite for this. Need to use print <<ENDHTML;

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  • Detect HTTPHandler Start

    - by Joe Coder Guy
    Is there a way to detect if a httphandler has started transmitting? I'm trying to do large dynamic Excel Exports (in html table format). I can do this, but there's a long delay from the httphandler getting the message and starting the download. I have turned off the output buffer, so the delay seems to be waiting for the SQL server to dump the data into the sqldataset. Anyways, I'd like to send the user to a new page, have the page display a message, and automatically close once the httphandler has started sending the file. Is there a way to detect if the first file headers have been sent? Many thanks in advance!

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  • ASP.NET Web App to compare performance on different hardware?

    - by Guy
    I'm looking for an open source C# ASP.NET Web App that can be loaded onto 2 or more dedicated servers and provide me with metrics on how that server is performing. E.g. Click on a page and the app does a number of in-memory iterations and/or calculations to test processor throughput. Another page would do a bunch of disk access and report on that. I could put one together myself but there might already be something out there with a whole ton of tools in it to do this. I would imagine that I'm not the first one that would want to compare two machines for use as a web server.

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  • Where is the VM in LLVM?

    - by anon
    Note: marked as community wiki. Where is the Low Level Virtual Machine in LLVM? I see that we have llvm-g++ and c-lang, but to me, a LLVM is something almost like Valgrind of a simulator, where instructions are executed on it, and I can write programs to instrument the running code / interrupt when certain conditions happen / etc ... Where are the tools like this built on LLVM? Thanks!

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  • Purpose of lua_lock and lua_unlock?

    - by anon
    What is the point of lua_lock and lua_unlock? The following implies it's important: LUA_API void lua_gettable (lua_State *L, int idx) { StkId t; lua_lock(L); t = index2adr(L, idx); api_checkvalidindex(L, t); luaV_gettable(L, t, L->top - 1, L->top - 1); lua_unlock(L); } LUA_API void lua_getfield (lua_State *L, int idx, const char *k) { StkId t; TValue key; lua_lock(L); t = index2adr(L, idx); api_checkvalidindex(L, t); setsvalue(L, &key, luaS_new(L, k)); luaV_gettable(L, t, &key, L->top); api_incr_top(L); lua_unlock(L); } The following implies it does nothing: #define lua_lock(L) ((void) 0) #define lua_unlock(L) ((void) 0) Please enlighten.

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  • EF4 CTP5 - Map foreign key without object references?

    - by anon
    I feel like this should have a simple answer, but I can't find it. I have 2 POCOs: public class Category { public int Id { get; set; } public string Name { get; set; } } public class Product { public int Id { get; set; } public int CategoryId { get; set; } } Notice that there are no object references on either POCO. With Code-First, how do I make EF4 CTP5 define a relationship between the two database tables? (I know this is an unusual scenario, but I am exploring what's possible and what's not with Code-First)

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  • Problem with stackless python, cannot write to a dict

    - by ANON
    I have simple map-reduce type algorithm, which I want to implement in python and make use of multiple cores. I read somewhere that threads using native thread module in 2.6 dont make use of multiple cores. is that true? I even implemented it using stackless python however i am getting into weird errors [Update: a quick search showed that the stack less does not allows multiple cores So are their any other alternatives?] def Propagate(start,end): print "running Thread with range: ",start,end def maxVote(nLabels): count = {} maxList = [] maxCount = 0 for nLabel in nLabels: if nLabel in count: count[nLabel] += 1 else: count[nLabel] = 1 #Check if the count is max if count[nLabel] > maxCount: maxCount = count[nLabel]; maxList = [nLabel,] elif count[nLabel]==maxCount: maxList.append(nLabel) return random.choice(maxList) for num in range(start,end): node=MapList[num] nLabels = [Label[k] for k in Adj[node]] if (nLabels!=[]): Label[node] = maxVote(nLabels) else: Label[node]=node However in above code the values assigned to Label, that is the change in dictionary are lost. Above propagate function is used as callable for MicroThreads (i.e. TaskLets)

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  • AppDomain.CurrentDomain.DomainUnload not be raised in Console app

    - by Guy
    I have an assembly that when accessed spins up a single thread to process items placed on a queue. In that assembly I attach a handler to the DomainUnload event: AppDomain.CurrentDomain.DomainUnload += new EventHandler(CurrentDomain_DomainUnload); That handler joins the thread to the main thread so that all items on the queue can complete processing before the application terminates. The problem that I am experiencing is that the DomainUnload event is not getting fired when the console application terminates. Any ideas why this would be? Using .NET 3.5 and C#

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  • Flash10 Triangle Rendering

    - by anon
    I know about Papervision 3D. However, alot of the realism there comes from textures. Does anyone know of a benchmark that shows how many single-color, flash-shaded 3D triagnels flash10 can reasonably render? I can't find this benchmark online or an engine for this (most seems to really value bitmaps / texture). Thanks!

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  • macro returning length of arguments in C

    - by anon
    Is it possible to write a C macro that returns the length of its arguments? I want something that does: foo(1) -> 1 foo(cat, dog) -> 2 foo(red, green, blue) -> 3 Even better if this macro can be defined in such a way that it works with ## so that foo(1) -> bar1(1) foo(cat, dog) -> bar2(cat, dog) foo(red, green, blue) -> car3(red, green, blue) Thanks! EDIT: I really want a macro, not a function. Suggestions to use functions will be downvoted.

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