Syntax and Semantics笔试题

 Syntax and Semantics

1. In a runtime C program, auto variables are stored in , static variables　are stored in , and function parameters are stored in .

　　a. stack b. heap c. neither stack nor heap

2. The statement extern int x; is a , and the keyword extern is used during .

　　a. variable declaration b. variable definition　c. compilation time d. runtime

3. There is a complicated declaration: void ( * signal (int, void (*)(int)) ) (int);If a statement typedef void (*p) (int); is given, please rewrite this　complicated declaration.

4. The following code is a segment of C program.

　　..........

　　void func(int *p)

　　{...........}

　　..........

　　main()

　　{

　　int num=0;

　　.........

　　func(num);

　　........

　　}

　　..........

Here, the function argument num is passed .

　　a. by value b. by reference