How do I use malloc and free in C?

How do I use malloc and free in C?

In C, malloc is used to allocate memory dynamically. You can use it like this: int *arr = malloc(size * sizeof(int));.

What if I forget to free the memory?

Forgetting to free memory can lead to memory leaks, which can cause your program to consume more memory over time.

How do I properly free the memory?

You can free the memory allocated by malloc using the free function: free(arr); Make sure to do this when you're done using the memory.

Can I use malloc for arrays?

Yes, you can use malloc to allocate memory for arrays. Just multiply the size of the element by the number of elements you need.

What happens if I try to free memory that wasn't allocated with malloc?

Freeing memory that wasn't allocated with malloc can lead to undefined behavior, which may crash your program.