buffer

问题 For avoiding any unwanted character which has been entered in console like \n we use nextInt() or nextLine() etc. But in these cases actually the control is going a step ahead leaving the unwanted string or something like this. But I want to delete or flush out the memory of buffer in which other unwanted data is taken by the system. For example --> Scanner scan=new Scanner(System.in); scan.nextInt(); scan.nextline();//this statement will be skipped because the system is taking \n as a line

问题 I have a fs.ReadStream object that points to a pretty big file. Now I would like to read 8000 bytes from the ReadStream, but the internal buffer is only 6000 bytes. So my approach would be to read those 6000 bytes and wait for the internal buffer to fill up again by using a while-loop that checks whether the internal buffer length is not 0 anymore. Something like this: BinaryObject.prototype.read = function(length) { var value; // Check whether we have enough data in the internal buffer if

问题 I'm trying to write a simple SNPP (Simple Network Paging Protocol) client using sockets. Everything seems to be working well, except for a small inconsistency between servers. When I send a command, I need to read the reply, which is usually a single chunk of data. However, Sprint's SNPP server sends replies in two parts. The first chunk of data is the first digit of the status code. The second chunk is the remainder. For example, when I attempt to receive the "220 Gateway ready" reply, it

问题 I am getting data from a continuous buffer of strings staring from "8=XXX to 10=XXX". For suppose the string for the first buffer scan is say :Below is the entire string I got in one scan. 8=FIX.4.2|9=00815|35=W|49=TT_PRICE|56=SAP0094X|10=134| 8=FIX.4.2|9=00816|35=W49=TT_PRICE ----------------here I didn't get the full string Now I want the string starting from "8=xxx" and ending with "10=xxx|" . I have written a program for that and it's working fine. Now the problem is when I pass the above

问题 I am getting data from a continuous buffer of strings staring from "8=XXX to 10=XXX". For suppose the string for the first buffer scan is say :Below is the entire string I got in one scan. 8=FIX.4.2|9=00815|35=W|49=TT_PRICE|56=SAP0094X|10=134| 8=FIX.4.2|9=00816|35=W49=TT_PRICE ----------------here I didn't get the full string Now I want the string starting from "8=xxx" and ending with "10=xxx|" . I have written a program for that and it's working fine. Now the problem is when I pass the above

问题 I'm trying to port my Java OpenGL code on Android to the Native SDK and I need an IntBuffer implementation. Basically what I do in Java to load up an arbitrary integer RGBA pixel color array into a texture is: // pixel array pixelIntArray = new int[width * height]; bb = ByteBuffer.allocateDirect(pixelIntArray.length * 4); bb.order(ByteOrder.nativeOrder()); // native buffer pixelBuffer = bb.asIntBuffer(); // push integer array of pixels into buffer pixelBuffer.put(pixelIntArray); pixelBuffer

问题 I have a problem with ReadFile and overlapped. first I use ReadFile with overlapped with 0 ZeroMemory(&overlapped ,sizeof(OVERLAPPED)); hDevice = CreateFileW(zwpath, GENERIC_READ | GENERIC_WRITE, FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL | FILE_FLAG_OVERLAPPED, NULL); if(hDevice != INVALID_HANDLE_VALUE){ ret = ReadFile(hDevice, buff, 1024, &numerobyte, &overlapped); } with a for(), I can see the bytes using a printf() for (int n=0; n<sizeof(buff); n++) {

问题 Scenario: I am using OpenH264 with my App to encode into a video_file.mp4 . Environment: Platform : MacOs Sierra Compiler : Clang++ The code: Following is the crux of the code I have: void EncodeVideoFile() { ISVCEncoder * encoder_; std:string video_file_name = "/Path/to/some/folder/video_file.mp4"; EncodeFileParam * pEncFileParam; SEncParamExt * pEnxParamExt; float frameRate = 1000; EUsageType usageType = EUsageType::CAMERA_VIDEO_REAL_TIME; bool denoise = false; bool lossless = true; bool

问题 I'm writing a simple test compute shader that writes a value of 5.0 to every element in a buffer. The buffer's values are initialized to -1, so that I know whether or not creating the buffer and reading the buffer are the problem. class ComputeShaderWindow : public QOpenGLWindow { public: void initializeGL() { // Create the opengl functions object gl = context()->versionFunctions<QOpenGLFunctions_4_3_Core>(); m_compute_program = new QOpenGLShaderProgram(this); auto compute_shader_s = fs:

问题 I found a program that takes in standard input int main(int argc, char **argv) { if (argc != 2) { fprintf(stderr, "Usage: %s <PATTERN>\n", argv[0]); return 2; } /* we're not going to worry about long lines */ char buf[4096]; // 4kibi while (!feof(stdin) && !ferror(stdin)) { // when given a file through input redirection, file becomes stdin if (!fgets(buf, sizeof(buf), stdin)) { // puts reads sizeof(buf) characters from stdin and puts it into buf; fgets() stops reading when the newline is read