structure

It seems to me that C's arrow operator (->) is unnecessary. The dot operator (.) should be sufficient. Take the following code: typedef struct { int member; } my_type; my_type foo; my_type * bar; int val; val = foo.member; val = bar->member; We see that the arrow operator must be used to dereference bar. However, I would prefer to write val = bar.member; There is no ambiguity as to whether I am trying to pull 'member' from a structure or from a pointer to the structure. But it is easy to use the wrong operator, especially when refactoring code. (For example, maybe I am doing some complex

I need to create a tree structure similar as the attached image in Java. I've found some questions related to this one but I haven't found a convincing and well explained response. The application business consists in food super categories (main courses, desserts and other). Each of these categories can have parent items or children items and so on. Jonathan import java.util.ArrayList; import java.util.List; public class Node<T> { private List<Node<T>> children = new ArrayList<Node<T>>(); private Node<T> parent = null; private T data = null; public Node(T data) { this.data = data; } public

I have been working with PHP for years and gotten a very good grasp of the language, created many advanced and not-so-advanced systems that are working very well. The problem I'm running into is that I only learn when I find a need for something that I haven't learned before. This causes me to look up solutions and other code that handles the problem, and so I will learn about a new function or structure that I hadn't seen before. It is in this way that I have learned many of my better techniques (such as studying classes put out by Amazon, Google or other major companies). The main problem

I see a lot of Vue.js projects using this structure: ├── main.js ├── api │ └── index.js │ └── services #containing files with api-calls │ ├── global.js │ ├── cart.js │ └── messages.js ├── components │ ├── Home.vue │ ├── Cart.vue │ ├── Messages.vue │ └── ... └── store ├── store.js ├── actions.js #actions to update vuex stores ├── types.js └── modules ├── global.js ├── cart.js └── ... (An example with this structure is ' Jackblog '.) So, for example, Cart.vue wants to update the inCart data in Vuex. To do that, the Cart imports actions.js : import { inCart } from '../../store/actions' The

Is it somehow possible to create a solr document that contains sub-elements? For example, how would I represent something like this: <person first="Bob" last="Smith"> <children> <child first="Little" last="Smith" /> <child first="Junior" last="Smith" /> </children> </person> What is the usual way to solve this problem? You can model this in different ways, depending on your searching/faceting needs. Usually you'll use multivalued or dynamic fields. In the next examples I'll omit the field type, indexed and stored flags: <field name="first"/> <field name="last"/> <field name="child_first"