uint32

How to call a C function in Fortran and properly pass uint32_t arguments

由 半世苍凉 提交于 2019-12-13 13:55:00
问题 Hi I am using a Fortran 90 code to call a C function. Since I am manipulating addresses, the arguments of the C function should be properly matched in Fortran. I am using ifort and icc to compile the code and working on 64 bit machine. Some testing showed that this will work also with int32_t , although to prevent eventual pitfalls, I would like to keep the uint32_t The C functions I am calling has the following prototypes uint32_t encode_(uint32_t x, uint32_t y) uint32_t decode_(uint32_t dec

Why does UInt32(stringArray.count) count wrong in a function but correct alone in swift playground?

由 |▌冷眼眸甩不掉的悲伤 提交于 2019-12-12 04:58:21
问题 Why does this code count 6 elements, as 9 ("wrong") in swift playground. var stringArray = ["1", "2", "3", "4", "5", "6"] for var i = 0; i < 3; i++ { stringArray.append("Paragraph" + "\(i)") } func concat (array: [String]) -> String { let count = UInt32(stringArray.count) ** --> =9 ** let randomNumberOne = Int(arc4random_uniform(count)) let randomNumberTwo = Int(arc4random_uniform(count)) let randomNumberThree = Int(arc4random_uniform(count)) let concatString = array[randomNumberOne] + array

Easy SpriteKit Contact Detection (Space Shooter Game) Not Wotking Properly

由 自闭症网瘾萝莉.ら 提交于 2019-12-11 12:24:26
问题 I'm trying to make a simple Space Shooter game. The contact should happen either between the torpedo and the alien or the shuttle and the alien. The problem is that this second contact (shuttle vs. alien) only happens after the first kind of contact has happend (torpedo vs. alien) and further more they're not always precise. This is a struct created outside the class struct PhysicsCategory { static let alien : UInt32 = 1 static let torpedo : UInt32 = 2 static let shuttle : UInt32 = 3 }

guint32 date to timestamp in php

由 你说的曾经没有我的故事 提交于 2019-12-11 04:35:38
问题 I have a date format that is from a GTK\GNOME app that is stored in guint32 date: example: 724605 which I would like to convert into a time-stamp for use with-in a PHP script? Any ideas I have been using Google and trying to come up with a way to convert this? 来源： https://stackoverflow.com/questions/8297369/guint32-date-to-timestamp-in-php

What is the UInt32 data type in Visual Basic .NET?

由 余生长醉 提交于 2019-12-11 03:22:26
问题 What is the UInt32 datatype in VB.NET? Can someone inform me about its bit length and the differences between UInt32 and Int32 ? Is it an integer or floating point number? 回答1: It's an unsigned 32 bit integer: U for unsigned Int for integer 32 for 32 Or you could just look at the documentation: Represents a 32-bit unsigned integer. 回答2: It's a 32 Bit unsigned integer. 回答3: Data types in VB.NET notes the following: UInt32 - 32 bit unsigned integer Thus, it is 32 bits long, an integer. 回答4: A

How do I convert byte array to UInt32 array?

由 这一生的挚爱 提交于 2019-12-10 04:23:07
问题 Lets say In C++ I got code like this.. void * target uint32 * decPacket = (uint32 *)target; So in C# it would be like.. byte[] target; UInt32[] decPacket = (UInt32[])target; Cannot convert type byte[] to uint[] How do I convert this memory aligning thing C++ does to arrays to C#? 回答1: Well, something close would be to use Buffer.BlockCopy: uint[] decoded = new uint[target.Length / 4]; Buffer.BlockCopy(target, 0, decoded, 0, target.Length); Note that the final argument to BlockCopy is always

How do I set a UInt32 to it's maximum value

由 血红的双手。 提交于 2019-12-06 16:43:12
问题 What is the maximum value for a UInt32? Is there a way I can use the sizeof operator to get the maximum value (as it is unsigned)? So I don't end up with #defines or magic numbers in my code. 回答1: There's a macro UINT32_MAX defined in stdint.h which you can use #include <stdint.h> uint32_t max = UINT32_MAX; More about the relevant header <stdint.h> : http://pubs.opengroup.org/onlinepubs/009695299/basedefs/stdint.h.html 回答2: The maximum value for UInt32 is 0xFFFFFFFF (or 4294967295 in decimal)

Fastest way to cast int to UInt32 bitwise?

由 好久不见. 提交于 2019-12-05 21:38:22
问题 i have some low level image/texture operations where 32-bit colors are stored as UInt32 or int and i need a really fast bitwise conversion between the two. e.g. int color = -2451337; //exception UInt32 cu = (UInt32)color; any ideas? thanks and regards 回答1: int color = -2451337; unchecked { uint color2 = (uint)color; // color2 = 4292515959 } 回答2: BitConverter.ToUInt32(BitConverter.GetBytes(-2451337), 0) 回答3: Those using a language like VB, which don't have a really convenient way of disabling

What is the difference between Int32 and UInt32?

由 ☆樱花仙子☆ 提交于 2019-12-05 13:52:06
问题 What is the difference between Int32 and UInt32 ? If they are the same with capacity range capabilities, the question is for what reason UInt32 was created? When should I use UInt32 instead of Int32 ? 回答1: UInt32 does not allow for negative numbers. From MSDN: The UInt32 value type represents unsigned integers with values ranging from 0 to 4,294,967,295. 回答2: An integer is -2147483648 to 2147483647 and an unsigned integer is 0 to 4294967295. This article might help you. 回答3: uint32 is an

How do I set a UInt32 to it's maximum value

由 空扰寡人 提交于 2019-12-04 22:21:01
What is the maximum value for a UInt32? Is there a way I can use the sizeof operator to get the maximum value (as it is unsigned)? So I don't end up with #defines or magic numbers in my code. There's a macro UINT32_MAX defined in stdint.h which you can use #include <stdint.h> uint32_t max = UINT32_MAX; More about the relevant header <stdint.h> : http://pubs.opengroup.org/onlinepubs/009695299/basedefs/stdint.h.html liamnichols The maximum value for UInt32 is 0xFFFFFFFF (or 4294967295 in decimal). sizeof(UInt32) would not return the maximum value; it would return 4, the size in bytes of a 32 bit
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