Quiz Yourself on Heap and Dynamic Memory Allocations
Explore and test your knowledge of heap memory and dynamic memory allocations in C. This lesson helps you understand and identify how dynamic memory management works, preparing you to avoid common errors and use memory efficiently in your programs.
We'll cover the following...
We'll cover the following...
Heap and dynamic memory allocations
1.
What is the output of the following code? Assume the allocation doesn’t fail.
int* arr = malloc(sizeof(int) * 5);
if(arr == NULL)
{
return;
}
printf("%d\n", arr[3]);
A.
The memory block is uninitialized, and the code prints garbage values.
B.
The memory block is initialized by default with 0. The code prints 0.
C.
The code will crash because arr[3] is not a valid memory location.
D.
The code doesn’t compile.
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