As address of the variable y is returned and which gets stored in x and the memory block of function abc() is de-allocated. Next we try to store a value in the memory which has been de-allocated. As memory has been de-allocated and hence operating system may have allocated this memory to some other process. […]
Tag: allocation
Q4: Memory Allocation
What is the output of the following code? (a) 3 (b) 5 (c) Can’t say Ans: Many would answer it as 3 but it is wrong. The way we have tried to do it is wrong. As we enter into main we have a memory allocated for variable x and then function abc is called. Now […]
Q3: Memory allocation
Consider the C code Explain the allocation of memory in stack for the above program. Ans: firstly a frame in stack is created and memory is allocated to store variable x with value 3. And then function call is made to function fun() and a new frame is created in the stack. Firstly return address to […]
Q2: Memory Allocation
Consider the C code: Now we have to picturize the whole scenario in HEAP and STACK memory. Ans: We have no dynamically allocated variables in this program. Hence there is not much role of HEAP memory. We analyze the memory allocation and de-allocation in STACK on next page. We know stack memory is used to […]
Q1: Memory allocation
Now we have the following statements and we see how STACK & HEAP memory is allocated to different variables. We have the empty HEAP memory & STACK memory as: NOTE: For this question we have used a heap memory & allocated space serially while in real, memory is allocated randomly by operating system. char* x; x= […]