<code>struct Dictionary {<br> int key;<br> char* value;<br>};</code>
Table of Contents
Table of Contents
Introduction
In programming, maps play a crucial role in data manipulation. In C, the equivalent of a map is a structure called a dictionary, which stores data in key-value pairs. In this article, we’ll take a closer look at how dictionaries work in C and explore some common use cases.What is a Dictionary?
A dictionary is a collection of data that is stored in key-value pairs. The key is used to identify a specific piece of data, while the value is the data itself. In C, dictionaries can be created using structures, which allow us to define our own custom data types.How to Create a Dictionary in C
To create a dictionary in C, we first need to define a structure that will hold our key-value pairs. Here’s an example:struct Dictionary {
int key;
char* value;
};
struct Dictionary myDict = { 1, "Hello World" };
Common Use Cases for Dictionaries
Dictionaries are commonly used in C for a variety of purposes, including:- Storing configuration data
- Storing user preferences
- Creating lookup tables
Question and Answer:
Q: Can dictionaries store more than one value for a single key?
A: No, dictionaries in C can only store one value per key. If you need to store multiple values, you’ll need to create a separate dictionary for each value.
