structure

I already found encoding/binary package to deal with it, but it depended on reflect package so it didn't work with uncapitalized(that is, unexported) struct fields. However I spent a week to find that problem out, I still have a question: if struct fields should not be exported, how do I dump them easily into binary data? EDIT: Here's the example. If you capitalize the name of fields of Data struct, that works properly. But Data struct was intended to be an abstract type, so I don't want to export these fields. package main import ( "fmt" "encoding/binary" "bytes" ) type Data struct { id int32

I tried to structure my last sizeable MVC project following a best practice approach, but didn't quite understand what I was doing. It has a Data, Business and Web (MVC) project, but the controllers contain most of the code, the Data layer uses NHibernate and has a few repositories responsible for too many things, and the Business layer is a dumping ground for anything that doesn't belong in the other two projects. It works, but I feel it could have been setup better - the main things I'm unhappy with are the fat controllers and the repositories. I'm starting a new project that might grow to

I would like to read a bitmap file into a struct and manuplate it like make a mirror effect etc. but I cannot understand which kind of struct should i be creating in order to read into it. Thank you for your help ollo »This is how you maually load a bmp file The bitmap file format: Bitmap file header Bitmap info header palette data Bitmap Dada so on with the code part, this is our struct we need to create to hold the bitmap file header #pragma pack(push, 1) typedef struct tagBITMAPFILEHEADER { WORD bfType; //specifies the file type DWORD bfSize; //specifies the size in bytes of the bitmap file

I've been searching high and low (mostly on google) for a fast, efficient, templated (ie. with STL-like properties) octree implementation, without success. I want to use this in the context of a 3D scene graph. Does such a thing exist, or do people generally roll their own? I'm hoping my friends at stackoverflow will know where to find one. Lou Franco Check this one out: http://svn.pointclouds.org/pcl/trunk/octree/ Updated link: https://github.com/PointCloudLibrary/pcl/tree/master/octree Janus Troelsen http://nomis80.org/code/octree.html This is my favorite. It is GPL and has it's own homepage

I'm tasked to create a program which dynamically allocates memory for a structure. normally we would use x=malloc(sizeof(int)*y); However, what do I use for a structure variable? I don't think its possible to do struct st x = malloc(sizeof(struct)); Could someone help me out? Thanks! My favorite: #include <stdlib.h> struct st *x = malloc(sizeof *x); Note that: x must be a pointer no cast is required include appropriate header You're not quite doing that right. struct st x is a structure, not a pointer. It's fine if you want to allocate one on the stack. For allocating on the heap, struct st *

I'm confused. Well not confused, so much as not wanting to do 6 test programs to see which algorithm is the best. So I thought I'd ask my expert friends here at SO to give me the benefit of their experience. The scenario is a 3d scene with potentially quite a large area compared to the sizes of the objects inside it. There are potentially thousands of objects in the scene. Objects vary in size from tenths of a unit to up to around 10 units, but no bigger (or smaller). The objects tend to be clustered together, but those clusters can potentially appear anywhere in the scene. All objects are

I'm a bit lost when it comes to structuring my project(s). I try to structure things in ways that make sense, but always end up restructuring the whole thing at least twice per day. Granted, my projects aren't very big, but I would love to not have to restructure everything and just settle on something for once. I'll describe my current program to try to make sense of things. It's a graphical program with a database backend for calculating the price of sails. Not everything is written yet, but the user will be able to select a sail category and model from two dropdown menus. Depending on the

Is it right to make a structure's instance this way? public struct Barometer { public var pressure: Int public init(pressure: Int) { self.pressure = pressure } } var barometer: Barometer = 80 Or I need to adopt a protocol? You can make that work by adopting the IntegerLiteralConvertible protocol: extension Barometer: IntegerLiteralConvertible { public init(integerLiteral value: Int) { self.init(pressure: value) } } Now a Barometer value can be instantiated from a literal integer: let barometer: Barometer = 80 print(barometer) // Barometer(pressure: 80) But note that this works only with

struct LinkedList { int data; struct LinkedList *next; }; In the code, within the definition of struct LinkedList there is a pointer to the structure itself. How does it work? So, the code struct LinkedList { int data; struct LinkedList *next; }; defines a struct type containing two members named data and next , with the next member storing the address of a different object of the same type. Given the code: struct LinkedList Node1 = { .data = 1, .next = NULL }; struct LinkedList Node0 = { .data = 0, .next = &Node1 }; you get something that sort of looks like this: Node0 Node1 +---+--------+ +-