Question

4.The following questions refer to the skeletal C++ program shown below.

a.Assume that static scoping is used. List all variables, along with the functions in which they are declared, that are visible at Line 1 in the program.

b. Repeat part (a), but list the variables along with the functions in which they are declared that are visible at Line 2.

c. Repeat part (a), but list the variables along with the functions in which they are declared that are visible at Line 3.

d. Repeat part (a), but list the variables along with the functions in which they are declared that are visible at Line 4.

e. Assume that dynamic scoping is used, and that main calls f2, which calls f1.(Assume that f2 calls f1 on Line 5.) List all variables, along with the functions in

which they are declared, that are visible at Line 2 in the program.

void f1();

void f2();

int b, c, d;

int main() {

int a, b, d;

... // Line 1

}

void f1() {

int d, e;

... //Line 2

if (...) {

int a, b;

... // Line 3

}

}

void f2() {

int a, c;

if (...) {

int b, c;

... // Line 4

}

... // Line 5

}

Here’s an example of the format that you should use for your answers:

b (global), d (declared in f1), e (declared in if block in f1)

Answer 1