Concepts Of Programming Languages
12th Edition
ISBN: 9780134997186
Author: Sebesta, Robert W.
Publisher: Pearson,
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Chapter 5, Problem 10PS
Consider the following C program
void fun (void) {
int a, b, c; /* defiinition.1 */
. . .
while (. . .)
int b, c, d; /* definition 2 */
. . . <---------------------- 1
while (…) {
int c, d, e; /* definition 3 */
. . . <------------------2
}
. . .<------------------3
}
. . . <------------------4
}
For each of the four marked points in this function, list each visible variable, along with the number of the definition statement that defines it.
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#include<iostream>
using namespace std;
class Circle{int x,y;int r;static int number_of_circles;public:Circle(int a , int b, int rad){x = a;y = b;r = rad;++number_of_circles;}Circle(const Circle &c1){x = c1.x;y = c1.y;r = c1.r;number_of_circles = ++c1.number_of_circles;
}void display(){cout<<"Co-ordinates : ("<<x<<" , "<<y<<" ) \n";cout<<"Radius : "<<r<<"\n";}friend void update(Circle &c);static int update_number_of_circles(){return number_of_circles;}};void update(Circle &c){int a,b,rad;cout<<"Enter the coordinates of the centre : ";cin>>a>>b;cout<<"Enter the radius of th circle : ";cin>>rad;c.x = a;c.y = b;c.r = rad;}int Circle::number_of_circles = 0;
int main(){Circle c(1,2,5);Circle c1(c);Circle c2(c1);c1.display();update(c1);c1.display();cout<<c2.update_number_of_circles();
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#include<iostream>
using namespace std;…
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Chapter 5 Solutions
Concepts Of Programming Languages
Ch. 5 - Prob. 1RQCh. 5 - Prob. 2RQCh. 5 - Prob. 3RQCh. 5 - Which category of C++ reference variables always...Ch. 5 - Prob. 5RQCh. 5 - Prob. 6RQCh. 5 - Prob. 7RQCh. 5 - Prob. 8RQCh. 5 - What are the advantages and disadvantages of...Ch. 5 - Prob. 10RQ
Ch. 5 - Prob. 11RQCh. 5 - Prob. 12RQCh. 5 - How is a reference to a nonlocal variable in a...Ch. 5 - What is the general problem with static scoping?Ch. 5 - What is the referencing environment of a...Ch. 5 - Prob. 16RQCh. 5 - What is a block?Ch. 5 - What is the purpose of the let constructs in...Ch. 5 - What is the difference between the names defined...Ch. 5 - Prob. 20RQCh. 5 - Prob. 21RQCh. 5 - What are the advantages of named constants?Ch. 5 - Which of the following identifier forms is most...Ch. 5 - Prob. 2PSCh. 5 - Write a simple assignment statement with one...Ch. 5 - Prob. 4PSCh. 5 - Describe a situation when a history-sensitive...Ch. 5 - Consider the following C program void fun (void) {...Ch. 5 - Consider the following skeletal C program: void...Ch. 5 - Which of the following identifier forms is most...Ch. 5 - Prob. 2PECh. 5 - Write a simple assignment statement with one...
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