Arrays vs Pointers in C Programming – Differences Explained with Simple Examples
Arrays vs Pointers in C Programming – Differences Explained with Simple Examples
Arrays and pointers are closely related in C programming, which often confuses beginners.
Many students ask: Are arrays and pointers the same in C?
In this article, we will clearly explain arrays vs pointers in C programming using simple language, examples, and comparisons.
What Is an Array in C?
An array is a collection of elements of the same data type stored in continuous memory locations.
Arrays are useful when you need to store multiple values.
What Is a Pointer in C?
A pointer is a variable that stores the memory address of another variable.
Pointers provide direct access to memory.
How Arrays and Pointers Are Related
The name of an array acts as a pointer to its first element.
This is why arrays and pointers behave similarly in many cases.
Example: Array Declaration
int arr[5] = {1, 2, 3, 4, 5};
Example: Pointer Declaration
int *ptr = arr;
Here, ptr points to the first element of the array.
Key Differences Between Arrays and Pointers
| Array | Pointer |
|---|---|
| Stores multiple values | Stores memory address |
| Fixed size | Can be reassigned |
| Memory allocated at compile time | Can point to dynamic memory |
| Cannot be incremented | Can be incremented |
Pointer Arithmetic with Arrays
You can use pointer arithmetic to traverse arrays.
When a pointer is incremented, it moves to the next array element.
Advantages of Arrays
- Easy to use
- Efficient for fixed-size data
Advantages of Pointers
- Dynamic memory handling
- Efficient function argument passing
Common Mistakes Beginners Make
- Confusing array name with pointer variable
- Accessing memory out of bounds
Interview Importance
This topic is frequently asked in technical interviews.
Final Conclusion
Arrays and pointers are closely connected in C, but they are not the same.
Understanding their differences will help you write efficient and bug-free programs.
Next Post: String Handling in C Programming (strlen, strcpy, strcmp)
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