Arrays and strings can only be used to process similar data, so something needs to combine different data together, such as student ID, class number, course name, teacher name, and Pincode. To process different data, we have the “structure” in the C programming language.
Structure of main functions inside and outside
You can define structures in C programming languages other than main functions. If the structure is defined in the main function, it cannot be accessed through other functions and can only be accessed by the main function alone. If the structure is defined outside the main function, all functions can access the structure.
Access elements in a structure
The dot operator is used to access various elements in a structure.
Passing structure to function
Like any variable, structures can be passed through values or reference functions.
Type of structure
The “Typedef” keyword is used to define an alias for an already existing data type. In order to define variables, we must use the “struct” keyword and the structure name to define the variables. This can be long, so we use Typedef. Typedefs is not a simple string alternative, such as macros in C. There are more types than simple string alternatives.
Nested Structure
Various applications of structure in C programming
Structures in C programming are used in many applications:
- Define custom data types, such as plural numbers that do not exist in the language.
- Organize a large amount of data that can be stored in different fields.
- Create data structures such as trees, link lists, and so on.
- Can be used to return multiple values from a function.
- Draw graphic shapes on the screen
- Format disk
- Hide files from directory
- Clear the contents of the screen
- There are more applications
Hope this works, thanks.
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