Quiz Yourself on Heap and Dynamic Memory Allocations
Practice identifying memory areas and their characteristics in C programming. This lesson helps you solidify your understanding of heap memory, dynamic allocation functions, and common mistakes to write better code.
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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