bytearray

问题 In ANSI C, how do we convert a string in to an array of binary bytes? All the googling and searching gives me answers for C++ and others and not C. One idea I had was to convert the string into ASCII and then convert each ASCII value into its binary. (Duh!) I know it is the dumbest of ideas but I am not sure of any other option. I've heard abt the encoding function in Java. I am not sure if that suits the same purpose and can be adopted to C. string = "Hello" bytearr[] = 10100101... some byte

问题 I am writing an ASP.NET 5 MVC 6 (Core) application. Now I came to a point where I need to store (set and get) an object in the session-cache ( ISession ). As you may know, the Set -method of ISession takes a byte-array and the Get -method returns one. In a non-core-application I would use the BinaryFormatter to convert my object. But how can I do it in a core-application? 回答1: I'd go with serializing the objects to JSON and use the extensions methods on ISession to save them as string 's. //

问题 I am writing an ASP.NET 5 MVC 6 (Core) application. Now I came to a point where I need to store (set and get) an object in the session-cache ( ISession ). As you may know, the Set -method of ISession takes a byte-array and the Get -method returns one. In a non-core-application I would use the BinaryFormatter to convert my object. But how can I do it in a core-application? 回答1: I'd go with serializing the objects to JSON and use the extensions methods on ISession to save them as string 's. //

问题 I am trying to create a 2D array as below. int NUM_RECORDS = 100480507; byte[][] completeArray = new byte[NUM_RECORDS][6]; Shouldn't it be enough to have 100480507 * 6 ~= 0.6 GB See this question as well. But creation of this array runs out of memory. I have allocated 4G to my java process through JVM args. How can that be explained? I am I missing some thing trivial here? This is my program public class MemTest { public static void main(String[] args) { int NUM_RECORDS = 100480507; byte[][]

问题 I'm getting the following exception while sending ( or receiving ) a byte array to a C# service. There was an error deserializing the object of type System.Byte[]. The maximum array length quota (16384) has been exceeded while reading XML data. This quota may be increased by changing the MaxArrayLength property on the XmlDictionaryReaderQuotas object used when creating the XML reader. Line 6, position 34838.'. Please see InnerException for more details For what I can understand the

问题 I have a String, which contains the byte array's String value. How could I convert this String to byte array? How I tried: String stringValue="33321232"; //the bytes in String byte[] bytes= (byte[])stringValue; System.out.println(getByteArrayAsString(bytes)); The getByteArrayAsString method should give back the result String: 33321232 , so the same which is the stringValue . (This is my method, it is works, but how to get the bytes ?) Thank you! 回答1: I have a String, which contains the byte

问题 There are a few samples to do this but they are for Windows Phone 8.0 or 8.1 Silverlight. But how can you do this for Windows Phone 8.1 Runtime? 回答1: You cannot extract the pixels from a Windows.UI.Xaml.Media.Imaging.BitmapImage. The most general solution is to use a WriteableBitmap instead of a BitmapImage. These classes are both BitmapSources and can be used almost interchangeably. The WriteableBitmap provides access to its pixel data via its PixelBuffer property: byte[] pixelArray =

问题 So this is in relationship to dealing with the Large Object Heap and trying to minimize the number of times I instantiate a byte[]. Basically, I'm having OutOfMemoryExceptions and I feel like it's because we're instantiating too many byte array's. The program works fine when we process a couple of files, but it needs to scale, and it currently can't. In a nutshell, I've got a loop that pulls documents from a database. Currently, it's pulling one document at a time and then processing the

问题 How to convert an int[,] to byte[] in C#? Some code will be appreciated EDIT: I need a function to perform the following: byte[] FuncName (int[,] Input) 回答1: Since there is very little detail in your question, I can only guess what you're trying to do... Assuming you want to "flatten" a 2D array of ints into a 1D array of bytes, you can do something like that : byte[] Flatten(int[,] input) { return input.Cast<int>().Select(i => (byte)i).ToArray(); } Note the call to Cast : that's because

问题 I have a Java Application that calls a c library for performing crypto functions. This is a custom library implemented in c that we need to use from some Java programs. I need a way to define a SWIG typemap that will allow me call a function passing bytearray from Java and treat it as an unsigned character pointer in C function where c function fills data and returns it to java Excerpt of my present unhappy interface file is as follows %module CryptoFacade %pointer_functions(int, intp);