Interactive Computer Science Tutoring
Learn programming concepts interactively
C Structs - Data Containers!
Learn to bundle data together with interactive struct building
Struct Templates
Choose a template or build your own custom struct
Struct: Person
3 fields, 28 bytes total
age
int • 4 bytes • offset 0
height
float • 4 bytes • offset 4
name
char_array • 20 bytes • offset 8
Add New Field
Expand your struct with additional data members
Create Struct Instance
Make actual variables using your struct definition
Memory Layout Visualization
See how your struct is organized in memory
Struct Code: Person
Interactive C code with memory visualization
Struct Building Journey0/5
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Struct Concepts
📦 Data Bundling
Structs let you group related data together, like putting items in a labeled box.
🎯 Member Access
Use the dot operator (.) to access struct members: person.age, car.year
📏 Memory Layout
Struct fields are stored sequentially in memory with specific offsets and sizes.
🔄 Pass by Value
When you pass structs to functions, the entire struct is copied (unless using pointers).
Current Struct Stats
Struct Name:Person
Total Fields:3
Total Size:28 bytes
Instances Created:0
Memory Used:0 bytes