Question

Give Examples (or the kinds) of functions that fit each of the following descriptions: (These functions are related to a computers Operating system in C, C++)

a) a function that returns without being called

b) a function that is called once but returns twice

c) a function that is called and does not return in normal operation

d) a function that is called once and returns once

Answer 1

Following is the Answer:

a) a function that returns without being called

int main(){

return 0;

}

b) a function that is called once but returns twice

The new process created by fork is called the child process. This function is called once but returns twice.

pid_t fork(void);

c) a function that is called and does not return in normal operation

void main(){

}

main function is not return any value if it is declared as void.

d) a function that is called once and returns once

void printNewLine() {

System.out.println();

}