I work on an open source portable C++ image compression library. Currently, my API works by exchanging pointers to byte arrays with image data. I would like to support some kind of streaming mode for better performance and memory consumption. For this, I would like to know if there is an interface or abstract base class (part of the C+...
I created a separate project and activity that downloads an image from a URL, converts it to a Bitmap, and then uses a FileOutputStream to save that file to the SD card. When in the separate project and free-standing activity, this worked fine, and I could see that the image is stored on the SD card. public class PictureDownload extends...
The following code is giving me a compilation error. Can anyone please tell me why? class mytype { public: int value; mytype(int a) { value = a; } friend ostream& operator<<(ostream& stream, const mytype& a) { stream << a.value;//works return stream; } friend ostringstream& operator<<(ostr...
I am trying to get the OutputStream of the Process initiated by exec() to the console. How can this be done? Here is some incomplete code: import java.io.BufferedReader; import java.io.File; import java.io.IOException; import java.io.OutputStream; import java.io.PrintStream; import java.io.Reader; public class RuntimeTests { publi...
When using streams, memory consumption is supposed to be the same as the size of the buffer. However, I am not sure how a stream works when I look at the following code, which uses http request and response. (HttpWebRequest to be precise) Stream requestStream = webRequest.GetRequestStream(); // Here write stuff to the stream, data is a...
I want to make a class (let's call the class HugeStream) that takes an IEnumerable<Stream> in its constructor. This HugeStream should implement the Stream abstract class. Basically, I have 1 to many pieces of UTF8 streams coming from a DB that when put together, make a gigantic XML document. The HugeStream needs to be file-backed so tha...
Hi, I have this piece of code: SELDR_WH := FindControl(FindWindow(nil,'PhoneDB Filtering')) as TForm; if seldr_wh <> nil then begin SELDR_WH.ClientHeight := SELDR_WH.ClientHeight + 20; gif := TGIFImage.Create; with gif do begin Parent := SELDR_WH; Top := SELDR_WH.ClientHeight - 20; Left := 30; try ...
Due to my company's policy of using Eclipse and using Eclipse's code-autofix, the following code pattern appears excessively in the codebase: InputStream is = null; try { is = url.openConnection().getInputStream(); // ..... } catch (IOException e) { // handle error } finally { if (is != null) { try { ...
Hello, could you please advice what Java I/O Streams can be used for? Every of them which is in standard Java 5 or Java 6 I/O API. For example FileReader and FileWriter are used for reading and writing files. StringReader and StringWriter are used for reading and writing strings in memory. ObjectInputStream and ObjectOutputStream used...
I have to copy several bytes from a istream to a ostream, there are 2 ways that I know to perform this copy. myostream << myistream.rdbuf(); and copy( istreambuf_iterator<char>(myistream), istreambuf_iterator<char>(), ostreambuf_iterator<char>(myostream) ); I've found that rdbuf version is at least twice as fast as th...