CS 341 Lab 1 Spring 2024

Front

Which of the following does not depend on the architecture of the computer? Options: sizeof(char*), sizeof(char), sizeof(int), sizeof(int*)

Back

sizeof(char)

Front

Which of the following is a system call? printf, fprintf, write, scanf

Back

write

Front

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*.

Back

Malloc will always allocate a block of memory.

Front

How do you allocate sufficient space on the heap to copy an existing string pointed to by a char pointer char* src? Options: malloc(sizeof(src) + 1), malloc(sizeof(src)), malloc(strlen(src) + 1), malloc(strlen(src))

Back

malloc(strlen(src) + 1)

Front

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);

Back

56789

Front

What are the data types of ptr1 and ptr2 if the above line is executed? int* ptr1, ptr2;

Back

int*, int

Front

What is the value of y in the following code?
int x;
int y = x + 2;

Back

Undefined