CS 341 Lab 1 Spring 2024

Which of the following does not depend on the architecture of the computer?

• sizeof(char*)

• sizeof(char)

• sizeof(int)

• sizeof(int*)

Which of the following is a system call?

• printf

• fprintf

• write

• scanf

Which of the following is NOT true about malloc?

• The memory allocated by malloc is not initialized.

• Malloc will always allocate a block of memory.

• Malloc may return NULL if the requested block size is 0.

• The pointer returned by malloc is of type void*.

How do you allocate sufficient space on the heap to copy an existing string pointed to by a char pointer char* src?

• malloc(sizeof(src) + 1)

• malloc(sizeof(src))

• malloc(strlen(src) + 1)

• malloc(strlen(src))

What is the output of the following code snippet? (Assume that an int is 4 bytes)

char* ptr = "123456789\0";

int *int_ptr = (int*)ptr;

printf("%s", int_ptr + 1);

• 56789

• 23456789

• Segmentation Fault

• 123456789

int* ptr1, ptr2;

What are the data types of ptr1 and ptr2 if the above line is executed?

• int*, int*

• int, int

• int*, int

• int, int*

What is the value of y in the following code?

int x;

int y = x + 2;

• 2

• Undefined