For the C++ program show on the next page, answer the questions that follow. The names g, j, x, and y are declared multiple times. Distinguish uses of these names using line numbers where they were declared as subscripts. a. At point A in the program, what names are in scope? b. At point A in the program, what variables are live? c. At point B in the program, what names are in scope? d. At point B in the program, what variables are live?

C++ for Engineers and Scientists
4th Edition
ISBN:9781133187844
Author:Bronson, Gary J.
Publisher:Bronson, Gary J.
Chapter5: Repetition Statements
Section5.6: Nested Loops
Problem 2E
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For the C++ program show on the next page, answer the questions that follow. The names g, j, x,
and y are declared multiple times. Distinguish uses of these names using line numbers where they
were declared as subscripts.
a. At point A in the program, what names are in scope?
b. At point A in the program, what variables are live?
c. At point B in the program, what names are in scope?
d. At point B in the program, what variables are live?
Transcribed Image Text:For the C++ program show on the next page, answer the questions that follow. The names g, j, x, and y are declared multiple times. Distinguish uses of these names using line numbers where they were declared as subscripts. a. At point A in the program, what names are in scope? b. At point A in the program, what variables are live? c. At point B in the program, what names are in scope? d. At point B in the program, what variables are live?
Code for Problem I.
田
int g3
2
int h;
int bar(int x, int y) {
int f = x + y;
int g = 2 * h;
3
4
5
while (f < e) {
7
int x = f
1;
8
int y = g
1;
g = x + y;
f--;
10
}
// Point A
f++;
int z = f
11
12
13
14
return z;
15 }
int j = g + h;
void print(int v);
16
17
int foo(int a) {
int x = a * 2;
// Point B
int r = bar(a, x);
18
19
20
21
return r;
22 }
int main() {
int j = 3;
int k = 4;
int m = foo(j + k);
print(m);
return 0;
23
24
25
%3D
26
27
28
29 }
Transcribed Image Text:Code for Problem I. 田 int g3 2 int h; int bar(int x, int y) { int f = x + y; int g = 2 * h; 3 4 5 while (f < e) { 7 int x = f 1; 8 int y = g 1; g = x + y; f--; 10 } // Point A f++; int z = f 11 12 13 14 return z; 15 } int j = g + h; void print(int v); 16 17 int foo(int a) { int x = a * 2; // Point B int r = bar(a, x); 18 19 20 21 return r; 22 } int main() { int j = 3; int k = 4; int m = foo(j + k); print(m); return 0; 23 24 25 %3D 26 27 28 29 }
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ISBN:
9781133187844
Author:
Bronson, Gary J.
Publisher:
Course Technology Ptr