Storage Classes and Type Qualifiers in C (original) (raw)

Which of the following is NOT a storage class in C?

What does the extern storage class specify?

• Global variable with static scope
• Declaration of a variable defined elsewhere
• Immediate memory allocation

What is the default storage class for local variables in C?

What is the key feature of a static variable inside a function?

• It is shared across all functions
• It resets every time the function is called
• It retains its value between function calls
• It is allocated in the CPU register

Which qualifier tells the compiler not to optimize access to a variable?

What will be the output of the following code?

C `

#include <stdio.h>

void demo() { static int count = 0; count++; printf("%d ", count); }

int main() { demo(); demo(); demo(); return 0; }

`

What will be the output of the following code?

C `

#include <stdio.h>

int x = 10;

void print() { extern int x; printf("%d\n", x); }

int main() { print(); return 0; }

`

What is the output of this code?

C `

#include <stdio.h>

int main() { register int x = 5; printf("%d\n", x); return 0; }

`

What will happen when this code runs?

C `

#include <stdio.h>

int main() { const int a = 5; int *p = &a; *p = 10; printf("%d\n", a); return 0; }

`

Which variable will retain its value across multiple calls?

C `

#include <stdio.h>

void fun() { auto int x = 0; x++; printf("%d ", x); }

int main() { fun(); fun(); return 0; }

`

There are 18 questions to complete.

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