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  • creating new array according to input

    - by gcc
    int *arrays[20],j,a=0; /*int num_arrays;*/ char *tutar[200]; int /*fe*/i=0,n,temp; do{ tutar[i]=malloc(sizeof(int)); scanf("%s",tutar[i]); temp=*tutar[i]; ++i; } while(temp!='x'); int *arrays[20],j,a=0; n=i; j=1; for(i=1;i if(atoi(tutar[i])=='n') { ++j; arrays[j]=malloc(sizeof(int)); a=0; } arrays[j][a]=*(int *)tutar[i]; if(atoi(tutar[i])=='x') break; } input: 1 2 3 4 n 14 23 39 n 98 100 x output: arrays[1]:2 3 4 arrays[2]:14 23 39 arrays[3]:98 100 //i wanna output like that but my code didnt give me output like that //can anyone fix my code or (explain where is my error)

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  • Merge two excel files (with the condition)

    - by chennai
    I have a form in access in which i have two text boxes which accepts two excel files with a button click. now when i click generate button an output excel file has to be generated or created based on the following conditions In one excel file i have these data : id code country count t100 gb123 india 3123 t100 gh125 UK 1258 t123 ytr15 USA 1111 t123 gb123 Germany 100 t145 gh575 india 99 t458 yt777 USA 90 In another excel file i have these data country location India delhi UK london USA wallstreet Germany frankfurt The rows can be more than what i mentioned here ... now i want to merge them according to the country. In book1 excel file for example wherever you find country india the location field delhi has to be inserted right beside the country field and it has to be done for each and every country which i mentioned in book2 excel file and the output file has to be sorted according to the count at last. For example the output file should like this id code country count Location t100 gb123 india 3123 delhi t100 gh125 UK 1258 london t123 ytr15 USA 1111 wallstreet t123 gb123 Germany 100 frankfrt t145 gh575 india 99 delhi t458 yt777 USA 90 wallstreet

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  • Why do we need normalized coordinate system? Options

    - by jcyang
    Hi, I have problem understand following sentences in my textbook Computer Graphics with OpenGL. "To make viewing process independent of the requirements of any output device,graphic system convert object descriptions to normalized coordinates and apply the clipping routines." Why normalized coordinates could make viewing process independent of the requirements of any output devices? Isn't the projection coordinates already independent of output device?We only need to first scale and then translate the projection coordinate then we will get device coordinate. So why do we need first convert the projection coordinate to normalized coordinate first? "Clipping is usually performed in normlized coordinates.This allows us to reduce computations by first concatenating the various transformation matrices" Why clipping is usually performed in normlized coordinates? What kind of transformation concatenated? thanks. jcyang.

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  • php exec and shell_exec not working

    - by chris
    I want to run an exe file on my server and return the output to the browser screen. The exe file takes a input file and then returns data on the screen. Why is this code not working? $output = shell_exec('myprogram < INP.DAT'); echo "<pre>" . var_export($output, TRUE) ."</pre>\\n"; It displays "NULL" on the browser screen. I have also tried exec(). There it returns "Array()".

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  • Is there a method I can override on a JavaScript object to control what is displayed by console.log?

    - by agnoster
    I'm thinking in particular of Chrome, though Firebug would be interesting to. I've tried toString() and valueOf(), but neither of those seem to be used. Interestingly, if I take a function it'll display the function definition - but then if I add a toString() method it will show null! var a = function(){}; console.log(a); // output: function (){} a.toString = function(){ return 'a'; }; console.log(a); // output: null a.valueOf = function(){ return 'v'; }; console.log(a); // output: null Any ideas?

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  • Makefile won't copy .o to obj/ and target to bin/ folders

    - by about blank
    I'm trying to write a Makefile which will copy its target and objects to bin/ and obj/ directories, respectively. Yet, when I try to run it I get the following error: nasm -f elf64 -g -F stabs main.asm -l spacelander.lst ld -o spacelander obj/main.o ld: cannot find obj/main.o: No such file or directory make: *** [spacelander] Error 1 Why is this happening? Update I noticed when I posted the error that it was due to white spacing errors. After taking care of those, I still get the new error I replaced with the old one I mentioned prior. What is this?? Update 2 Posted -d flag output below Makefile source. Source ASM := nasm ARGS := -f FMT := elf64 OPT := -g -F stabs SRC := main.asm OBJDIR := obj TARGETDIR := bin OBJ := $(addprefix $(OBJDIR)/,$(patsubst %.asm, %.o, $(wildcard *.asm))) TARGET := spacelander .PHONY: all clean all: $(OBJDIR) $(TARGET) $(OBJDIR): mkdir $(OBJDIR) $(OBJDIR)/%.o: $(SRC) $(ASM) $(ARGS) $(FMT) $(OPT) $(SRC) -l $(TARGET).lst $(TARGET): $(OBJ) ld -o $(TARGET) $(OBJ) clean: @rm -f $(TARGET) $(wildcard *.o) @rm -rf $(OBJDIR) make -d Output - NOTE: output is too many characters for body, thus is pastebinned http://pastebin.com/3bctGJxs

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  • C Different answers for a variable when running 'Debug' and 'Start without debug'

    - by Craz
    I keep getting this weird output from my code everytime I use the 'start without degugging' (ctrl-F5) as opposed to normal 'debug' (F5). When I try to find the following value of norm_differnece in debug (pressing F5) mode, it gives me the correct answer for norm_difference normdifference = 1.000000 but in 'start without debugging' (pressing ctrl-f5) the wrong output normdifference = 1456816083547664100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.000000 The following is a segment of code which is gives the output Note: X[] = is a array of stored DOUBLE values for(i=0;i<n;i++){ sum_difference += (pow((X[i*n]-X[i]),2)); } norm_difference = sqrt(norm_difference); for(i=0;i<n;i++){ sum_norm_1 += pow(X[i],2); } norm_1 = sqrt(norm_1); //Take square root of the sum of squares for the row printf("normdifference = %f \n norm_1 = %f \n",norm_difference,norm_1);

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  • C++ putting a 2d array of floats into a char*

    - by sam
    Hello, I'm trying to take a 2d vector of floats (input) and put them into a char* (output) in c++. void foo(const std::vector<std::vector<float> > &input, char* &output ) { char charBuf[sizeof(output)]; int counter = 0; for(unsigned int i=0; i<input.size(); i++) { for(unsigned int p=0; p<input.at(i).size(); p++) { //what the heck goes here } }

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  • [cli/linux] get plain text from raw emails (not attachments extraction)

    - by etuardu
    Hi, having a raw email as input (i.e. the text between "DATA" and "." sent by a smtp client) I need to extract the mail content (which I know is always text only) as plain text. This means decoding transfer encoding (if any: could be base64 or quoted-printable), merging mutiparts (if any), and stripping headers. I tried various tools that would do that: mewdecode, uudecode, uudeview... I only managed to get this last one to work, but it won't output anything if the mail is not MIME encoded and it stores its output in an unpredictable (nor forceable) filename, so it's hard to use it in a not-interactive shell script. Since this is a pretty common job (every mail client have to do that), it's weird it's so complicated. Do you have some hints? (Actually, forcing uudeview to output in a certain file would be good enough). Thank you!

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  • use printf("text %d", number) type format to assign value to variable

    - by rksprst
    I would like to use the syntax that printf uses, using the %d, %s and adding values after to assign a value to a char[]. Is this possible? e.g. Given an output of: printf("now: %d-%d-%d %d:%d:%d\n", tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday, tm.tm_hour, tm.tm_min, tm.tm_sec); I'd like to assign that to char[] output; How can this be done? I tried: sprintf(output, "now: %d-%d-%d %d:%d:%d\n", tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday, tm.tm_hour, tm.tm_min, tm.tm_sec); but that didn't seem to work. Is sprintf used differently... or is that not what I should be using? Thanks!

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  • Use of 'standalone parentheses'

    - by zaf
    I just answered a question where I advised removing parentheses around a statement and was asked why, to which I had no answer when I realised that it caused no errors/warnings. I could only cite bad practice. But maybe I'm the one missing something... I did my own tests: (print('!')); // Outputs '!' ((print('!!'))); // Outputs '!!' (1); // No output (qwerty); // No output (1==2); // No output (1=2); // Syntax error // etc... Can someone shed some light on whats going on and of what use are 'standalone parentheses'?

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  • What does the R function `poly` really do?

    - by merlin2011
    I have read through the manual page ?poly (which I admit I did not completely comphrehend) and also read the description of the function in book Introduction to Statistical Learning. My current understanding is that a call to poly(horsepower, 2) should be equivalent to writing horsepower + I(horsepower^2). However, this seems to be contradicted by the output of the following code. library(ISLR) summary(lm(mpg~poly(horsepower,2), data=Auto))$coef summary(lm(mpg~horsepower+I(horsepower^2), data=Auto))$coef Output: Estimate Std. Error t value Pr(>|t|) (Intercept) 23.44592 0.2209163 106.13030 2.752212e-289 poly(horsepower, 2)1 -120.13774 4.3739206 -27.46683 4.169400e-93 poly(horsepower, 2)2 44.08953 4.3739206 10.08009 2.196340e-21 Estimate Std. Error t value Pr(>|t|) (Intercept) 56.900099702 1.8004268063 31.60367 1.740911e-109 horsepower -0.466189630 0.0311246171 -14.97816 2.289429e-40 I(horsepower^2) 0.001230536 0.0001220759 10.08009 2.196340e-21 My question is, why does the output not match, and what is poly really doing?

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  • Is there a way to redirect ONLY stderr to stdout (not combine the two) so it can be piped to other programs

    - by James K
    I'm working in a Windows CMD.EXE environment and would like to change the output of stdout to match that of stderr so that I can pipe error messages to other programs without the intermediary of a file. I'm aware of the 2>&1 notation, but that combines stdout and stderr into a single stream. What I'm thinking of would be something like this: program.exe 2>&1 | find " " But that combines stdout and stderr just like: program.exe | find " " 2>&1 I realize that I could do... program 2>file type file | find " " del file But this does not have the flexibility and power of a program | find " " sort of notation. Doing this requires that program has finished with it's output before that output can be processed.

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  • What is the difference between "render a view" and send the response using the Response's method "sendResponse()"?

    - by Green
    I've asked a question about what is "rendering a view". Got some answers: Rendering a view means showing up a View eg html part to user or browser. and So by rendering a view, the MVC framework has handled the data in the controller and done the backend work in the model, and then sends that data to the View to be output to the user. and render just means to emit. To print. To echo. To write to some source (probably stdout). but don't understand then the difference between rendering a view and using the Response class to send the output to the user using its sendResponse() method. If render a view means to echo the output to the user then why sendResponse() exists and vise versa? sendResponse() exactly sends headers and after headers outputs the body. They solve the same tasks but differently? What is the difference?

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  • Sending multiline message via sockets without closing the connection

    - by Yasir Arsanukaev
    Hello folks. Currently I have this code of my client-side Haskell application: import Network.Socket import Network.BSD import System.IO hiding (hPutStr, hPutStrLn, hGetLine, hGetContents) import System.IO.UTF8 connectserver :: HostName -- ^ Remote hostname, or localhost -> String -- ^ Port number or name -> IO Handle connectserver hostname port = withSocketsDo $ do -- withSocketsDo is required on Windows -- Look up the hostname and port. Either raises an exception -- or returns a nonempty list. First element in that list -- is supposed to be the best option. addrinfos <- getAddrInfo Nothing (Just hostname) (Just port) let serveraddr = head addrinfos -- Establish a socket for communication sock <- socket (addrFamily serveraddr) Stream defaultProtocol -- Mark the socket for keep-alive handling since it may be idle -- for long periods of time setSocketOption sock KeepAlive 1 -- Connect to server connect sock (addrAddress serveraddr) -- Make a Handle out of it for convenience h <- socketToHandle sock ReadWriteMode -- Were going to set buffering to LineBuffering and then -- explicitly call hFlush after each message, below, so that -- messages get logged immediately hSetBuffering h LineBuffering return h sendid :: Handle -> String -> IO String sendid h id = do hPutStr h id -- Make sure that we send data immediately hFlush h -- Retrieve results hGetLine h The code portions in connectserver are from this chapter of Real World Haskell book where they say: When dealing with TCP data, it's often convenient to convert a socket into a Haskell Handle. We do so here, and explicitly set the buffering – an important point for TCP communication. Next, we set up lazy reading from the socket's Handle. For each incoming line, we pass it to handle. After there is no more data – because the remote end has closed the socket – we output a message about that. Since hGetContents blocks until the server closes the socket on the other side, I used hGetLine instead. It satisfied me before I decided to implement multiline output to client. I wouldn't like the server to close a socket every time it finishes sending multiline text. The only simple idea I have at the moment is to count the number of linefeeds and stop reading lines after two subsequent linefeeds. Do you have any better suggestions? Thanks.

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  • Testing SocketChannel NIO

    - by hotzen
    Hello, I just wrote some NIO-code and wonder how to stress-test my implementation regarding SocketChannel.write(ByteBuffer) not able to write the whole byte-buffer SocketChannel.read(ByteBuffer) reading the data in chunks into ByteBuffer are there some simple linux-utilities like telnet to open a ServerSocket with some buffering-options?

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  • Java NIO Servlet to File

    - by Gandalf
    Is there a way (without buffering the whole Inputstream) to take the HttpServletRequest from a Java Servlet and write it out to a file using all NIO? Is it even worth trying? Will it be any faster reading from a normal java.io stream and writing to a java.nio Channel or do they both really need to be pure NIO to see a benefit? Thanks.

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  • AESlibrary only two lines

    - by user303968
    Does anyone know a c++ library that uses advanced encryption standard encryption that can achieve encryption and decryption (using counter mode) in just two lines of codes. No need of padding or buffering the plaintexts the library will take care of all this. I have had a look at crypto++, openssl and libtomcrypt but in these it seems I need to write codes to buffer and pad the plaintexts which I don't want. In brief, I need something along these lines: ciphertext = encrypt(ctr_mode(),plaintext,key) plaintext = decrypt(ctr_mode(),ciphertext,key) Thanks!

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  • I get 2014 Cannot execute queries while other unbuffered queries are active when doing exec with PDO

    - by Itay Moav
    I am doing a PDO::exec command on multiple updates: $MyPdo->setAttribute(PDO::MYSQL_ATTR_USE_BUFFERED_QUERY,true); $MyPdo->exec("update t1 set f1=1;update t2 set f1=2"); I am doing it inside a transaction, and I keep getting: SQLSTATE[HY000]: General error: 2014 Cannot execute queries while other unbuffered queries are active. Consider using PDOStatement::fetchAll(). Alternatively, if your code is only ever going to run against mysql, you may enable query buffering by setting the PDO::MYSQL_ATTR_USE_BUFFERED_QUERY attribute. those are the only query/ies

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  • SDL Video Init causes Exception on Mac OS X 10.8

    - by ScrollerBlaster
    I have just ported my C++ game to OS X and the first time it ran I get the following exception when trying to call SDL_SetVideoMode. 2012-09-28 15:01:05.437 SCRAsteroids[28595:707] * Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'Error (1000) creating CGSWindow on line 259' * First throw call stack: ( 0 CoreFoundation 0x00007fff8b53b716 __exceptionPreprocess + 198 1 libobjc.A.dylib 0x00007fff90e30470 objc_exception_throw + 43 2 CoreFoundation 0x00007fff8b53b4ec +[NSException raise:format:] + 204 3 AppKit 0x00007fff8a26a579 _NSCreateWindowWithOpaqueShape2 + 655 4 AppKit 0x00007fff8a268d70 -[NSWindow _commonAwake] + 2002 5 AppKit 0x00007fff8a2277e2 -[NSWindow _commonInitFrame:styleMask:backing:defer:] + 1763 6 AppKit 0x00007fff8a22692f -[NSWindow _initContent:styleMask:backing:defer:contentView:] + 1568 7 AppKit 0x00007fff8a2262ff -[NSWindow initWithContentRect:styleMask:backing:defer:] + 45 8 libSDL-1.2.0.dylib 0x0000000107c228f6 -[SDL_QuartzWindow initWithContentRect:styleMask:backing:defer:] + 294 9 libSDL-1.2.0.dylib 0x0000000107c20505 QZ_SetVideoMode + 2837 10 libSDL-1.2.0.dylib 0x0000000107c17af5 SDL_SetVideoMode + 917 11 SCRAsteroids 0x0000000107be60fb _ZN11SDLGraphics4initEP6IWorldii + 291 ) libc++abi.dylib: terminate called throwing an exception Abort trap: 6 My init code looks like this: if (SDL_Init(SDL_INIT_EVERYTHING) < 0) return false; const SDL_VideoInfo *videoInfo = SDL_GetVideoInfo(); if (!videoInfo) { fprintf(stderr, "Video query failed: %s\n", SDL_GetError()); return false; } /* the flags to pass to SDL_SetVideoMode */ videoFlags = SDL_OPENGL; /* Enable OpenGL in SDL */ videoFlags |= SDL_GL_DOUBLEBUFFER; /* Enable double buffering */ videoFlags |= SDL_HWPALETTE; /* Store the palette in hardware */ /* This checks to see if surfaces can be stored in memory */ if (videoInfo->hw_available) videoFlags |= SDL_HWSURFACE; else videoFlags |= SDL_SWSURFACE; if (w == 0) { widthViewport = videoInfo->current_w; heightViewport = videoInfo->current_h; cout << "Will use full screen resolution of "; videoFlags |= SDL_FULLSCREEN; } else { cout << "Will use full user supplied resolution of "; widthViewport = w; heightViewport = h; videoFlags |= SDL_RESIZABLE; /* Enable window resizing */ } cout << widthViewport << "x" << heightViewport << "\n"; /* This checks if hardware blits can be done */ if (videoInfo->blit_hw) videoFlags |= SDL_HWACCEL; /* Sets up OpenGL double buffering */ SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1); /* get a SDL surface */ surface = SDL_SetVideoMode(widthViewport, heightViewport, SCREEN_BPP, videoFlags); It gets into that last SDL call and throws the exception above. I have tried it in both full screen and resizable window mode, same thing. I build my app old school, on the command line, as opposed to using Xcode.

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  • SDL_GL_SwapBuffers Segfault

    - by RyanG
    I'm getting a segfault that GDB says is coming from SDL_GL_SwapBuffers. However, I can't imagine why. The SDL documentation mentions no specific pre-conditions for calling swapBuffers except that double buffering be allowed. Is this an option I have to turn on while initializing OpenGL or is this a hardware capability thing? My code: http://pastie.org/859721 (Ignore the unused variables, strange comments and other things. I haven't prettied this up at all. :P)

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  • doublebuffering not reducing the flicker

    - by fishhead
    I am drawing an grid-work of objects in a Panel. when I scroll the the panel quickly I get a flicker. I thought that enabling the double buffering may take care of this but what I find is that it does not completely draw everything and I am left with blank sections. could anyone give me suggestions as to what may be happening and how I might correct it. UPDATE: I found that I was creating the graphics object with Creategraphics() rather than using the Parameter in the paint method

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  • non contiguous String object C#.net

    - by Kazoom
    By what i understand String and StringBuilder objects both allocate contiguous memory underneath. My program runs for days buffering several output in a String object. This sometimes cause outofmemoryexception which i think is because of non availability of contiguous memory. my string size can go upto 100MBs and i m concatenating new string frequently this causes new string object being allocated. i can reduce new string object creation by using Stringbuilder but that would not solve my problem entirely Is there an alternative to a contiguous string object?

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  • Build a custom drawn control for .net compact framework

    - by Hinek
    I just started on the .net compact framework. I want to draw a Sudoku field on the screen. So I put down a PictureBox and defined a method for the Paint event: private void pictureBoxPlayfield_Paint(object sender, PaintEventArgs e) { // use e.Graphics to draw the grid, numbers and cursor } This works, but you can see as the grid is drawn. So my question is, what is the right/better way to create such a custom control? Is there maybe a way to enable double buffering?

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