bitconverter

问题 Hello I am using digi dynamic c. I am trying to convert this in to string char readingreg[4]; readingreg[0] = 4a; readingreg[1] = aa; readingreg[2] = aa; readingreg[3] = a0; Currently when I do printf statements it has to be like this: printf("This is element 0: %x\n", readingreg[0]); But I want this in string so I can use printf statement like this printf("This is element 0: %s\n", readingreg[0]); I am essentialy sending the readingreg array over TCP/IP Port, for which I need to have it as

问题 Hello I am using digi dynamic c. I am trying to convert this in to string char readingreg[4]; readingreg[0] = 4a; readingreg[1] = aa; readingreg[2] = aa; readingreg[3] = a0; Currently when I do printf statements it has to be like this: printf("This is element 0: %x\n", readingreg[0]); But I want this in string so I can use printf statement like this printf("This is element 0: %s\n", readingreg[0]); I am essentialy sending the readingreg array over TCP/IP Port, for which I need to have it as

问题 Is there any function to convert binary string into binary or decimal value? If I have a binary string 000101 , what should I do to convert it into 5 ? 回答1: Here is what you can try: binStr <- "00000001001100110000010110110111" # 20121015 (binNum <- 00000001001100110000010110110111) # 20121015 [1] 1.0011e+24 binVec <- c(1,0,1,0,0,0,1,1,0,0,0,0,0,0,1,0,0,0,0,0,0,1) # 2670721 shortBin <- 10011010010 # 1234 BinToDec <- function(x) sum(2^(which(rev(unlist(strsplit(as.character(x), "")) == 1))-1))

问题 I need to make simple C# BitConverter for JavaScript. I made simple BitConverter class BitConverter{ constructor(){} GetBytes(int){ var b = new Buffer(8) b[0] = int; b[1] = int >> 8 b[2] = int >> 16 b[3] = int >> 24 return b } ToInt(buffer){ return buffer[0] | buffer[1]<<8 | buffer[2] << 16 | buffer[3] << 24 } } GetBytes is giving me same output as c# but toInt not so ... toInt don't give me back what I've put into GetBytes (bigger numbers) example : var a = new BitConverter() var e =

问题 I'm using SHA256Managed to generate 256 bit hashs and I would like to store them on sql server. How good is BitConverter.ToInt64 for this? Does it ignore the extra bytes? Should I do some processing to reduce the byte array before converting to int64? 回答1: The BitConverter.ToInt64 only uses 8 bytes to produce the value, so any extra bytes in the array are ignored. If you want to store the complete 256 bit hash, you need to use a different data type. If you just want to use only the first 64

问题 Why is this program not working? I convert a byte array to long. Then from the long I convert back to a byte array. The resulting byte array is not the same as original. class Program { static void Main(string[] args) { byte[] myBytes = { 0, 0, 0, 32, 56, 99, 87, 34, 56, 56, 34, 33, 67 , 56, 66, 72, 1, 0, 0, 56, 0, 22}; long data = BitConverter.ToInt64(myBytes, 0); byte[] byteData = BitConverter.GetBytes(data); Console.WriteLine("byte array: " + BitConverter.ToString(myBytes)); Console

问题 I am using BitConverter.ToString(bytes) for converting by string to hexadecimal string which I further convert it into integer or float. But the input stream consist of 0 to show that byte value is 0. So suppose I have an integer which is represented by 2 bytes of input starting at position x and the first consist of EE while 2nd byte is 00 . Now when I use BitConverter.ToString(bytes, x, 2).Replace ("-","") I get output as EE00 whose integer value is 60928 but in this case the output should

问题 I have this code for converting a byte[] to float[] . public float[] ConvertByteToFloat(byte[] array) { float[] floatArr = new float[array.Length / sizeof(float)]; int index = 0; for (int i = 0; i < floatArr.Length; i++) { floatArr[i] = BitConverter.ToSingle(array, index); index += sizeof(float); } return floatArr; } Problem is, I usually get a NaN result! Why should this be? I checked if there is data in the byte[] and the data seems to be fine. If it helps, an example of the values are: new

问题 I am creating a C# web application using Silverlight 5 (VS 2010). I initially created a console application which works fine and now i am adapting it into a web app. Even in web application it is working fine for particularly set data type (say for example for int instead of <T> it is working fine) but when I use generic then it doesn't work. It compiles error free but it doesn't even debug the area which is set to "toggle break point". Initially the GUI was like this: But as the control

问题 If I have an Uint8Array array in JavaScript, how would I get the last four bytes and then convert that to an int? Using C# I would do something like this: int count = BitConverter.ToInt32(array, array.Length - 4); Is there an inequivalent way to do this using JavaScript? 回答1: Access the underlying ArrayBuffer and create a new TypedArray with a slice of its bytes: var u8 = new Uint8Array([1,2,3,4,5,6]); // original array var u32bytes = u8.buffer.slice(-4); // last four bytes as a new