uint32

问题 This question already has answers here : How can I convert BitArray to single int? (4 answers) Closed 3 years ago . im trying to convert a BitArray {0,0,0,0,0,0,0,0} into this: UInt32 0x0000 How can I do this? 回答1: Try this: new BitArray(yourArray).CopyTo(intArray, 0); 来源： https://stackoverflow.com/questions/37157550/converting-a-bitarray-in-to-uint32-c-sharp

问题 I have a property of type uint on my entity. Something like: public class Enity { public uint Count {get;set;} } When I try to persist that into the SQL Server 2005 database, I get an exception Dialect does not support DbType.UInt32 What would be the easiest way to workaround this. I could for example store it as long in the DB. I only don't know how to tell that to NHibernate. 回答1: The cleanest, most official solution would probably be to write a user type. Take an example, like this one and

问题 I have an array of UInt32 values. I would like to convert this array to a String . This doesn't work: let myUInt32Array: [UInt32] = [72, 101, 108, 108, 111, 128049] let myString = String(myUInt32Array) // error let myString = String(stringInterpolationSegment: myUInt32Array) // [72, 101, 108, 108, 111, 128049] (not what I want) These SO posts show UTF8 and UTF16 : How can I create a String from UTF8 in Swift? Is there a way to create a String from utf16 array in swift? 回答1: UnicodeScalar is a

问题 I have an array of UInt32 values. I would like to convert this array to a String . This doesn't work: let myUInt32Array: [UInt32] = [72, 101, 108, 108, 111, 128049] let myString = String(myUInt32Array) // error let myString = String(stringInterpolationSegment: myUInt32Array) // [72, 101, 108, 108, 111, 128049] (not what I want) These SO posts show UTF8 and UTF16 : How can I create a String from UTF8 in Swift? Is there a way to create a String from utf16 array in swift? 回答1: UnicodeScalar is a

问题 Edit: This question is out of date as the Polyfill example has been updated. I'm leaving the question here just for reference. Read the correct answer for useful information on bitwise shift operators. Question: On line 7 in the Polyfill example of the Mozilla Array.prototype.indexOf page they comment this: var length = this.length >>> 0; // Hack to convert object.length to a UInt32 But the bitwise shift specification on Mozilla clearly states that the operator returns a value of the same

问题 I'm making a program that 's about a math test random generator. But while I was creating a random operation. I used arc4random_uniform() to create a random number. Here's the function. func generateQuestion() { var randomoperation:UInt32 = arc4random_uniform(3) if randomoperation == 0 { operation = "+" } if randomoperation == 1 { operation = "-" } if randomoperation == 2 { operation = "X" } if randomoperation == 3 { operation = "/" } } This creates the error "Cannot assign a type of value

问题 Using my 64 bit Mac (Macbook Pro 2009), this code in Xcode playground is acting weird: let var1 = UInt32.max // 4,294,967,295 let var2 = UInt64.max // -1 --> why? var var3: UInt = UInt.max // -1 --> why? var3 = -1 // generates an error. setting var3 to -1 should generate an error. But in the declaration line, it became equal to -1 . 回答1: Apparently this is just a bug in swift playground and according to @Anton, printing the variables shows the correct value. 来源： https://stackoverflow.com

问题 This question already has answers here : Closed 7 years ago . Possible Duplicate: Difference between different integer types What is the difference between uint32 and uint32_t in C/C++? Are they OS dependent? In which case should I use one or another? Thanks 回答1: uint32_t is standard, uint32 is not. That is, if you include <inttypes.h> or <stdint.h> , you will get a definition of uint32_t . uint32 is a typedef in some local code base, but you should not expect it to exist unless you define it

问题 What is the best way to map UInt32 type to sql-server int type with NHibernate. The value is a picture width/height so negative value are not make sense here. But maybe I should use int because NHibenate doesn't support unassigned ints. 回答1: You can map the column with an IUserType. <class name="UnsignedCounter"> <property name="Count" type="mynamespace.UInt32Type, mydll" /> </class> And the IUserType which maps UInt32? and UInt32 . class UInt32Type : IUserType { public object NullSafeGet(

问题 What is the fastest way to count the number of set bits (i.e. count the number of 1s) in an UInt32 without the use of a look up table? Is there a way to count in O(1) ? 回答1: Is a duplicate of: how-to-implement-bitcount-using-only-bitwise-operators or best-algorithm-to-count-the-number-of-set-bits-in-a-32-bit-integer And there are many solutions for that problem. The one I use is: int NumberOfSetBits(int i) { i = i - ((i >> 1) & 0x55555555); i = (i & 0x33333333) + ((i >> 2) & 0x33333333);