#include
using namespace std;
int main()
{
float *f;
int *i;
if(!f || !i) {
cout << "Allocation error \n";
return 1;
}
*f = 10.101;
* = 100;
cout << *f << ' ' <<*i << '\n';
deldelete i;
return 0;
}
Githiari answered the question on May 29, 2018 at 18:06
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The copy constructor is also involked when a function generates the temporary object that is used as the function's return value. With this in...
(Solved)
The copy constructor is also involked when a function generates the temporary object that is used as the function's return value. With this in mind, consider the following output:
constructing nomally
constructing normally
constructing copy
This output was created by the following program. Explain why, and describe precisely what is occuring.
#include
using namespace std;
class myclass {
public:
myclass();
myclass(const myclass &o);
myclas f();
};
// Normal constructor
myclass::myclass()
{
cout << "Constructing normally\n";
}
// Copy constructor
myclass::myclass(const myclass &ocout << "Constructing copy\n";
}
// Return an object.
myclass myclass::f()
{
myclass temp;
return temp;
}
int main()
{
myclass obj;
obj = obj.return 0;
}
Date posted:
May 29, 2018
.
Answers (1)
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(Solved)
Imagine a situation in which two classes, called pr1 and pr2, shown below, share one printer.Further imagine that other parts of your program need to when the printer is in use by an object of either of these two classes. Create a function in C++ called inuse() that returns true when the printer is being used by either and false otherwise. Make this function a friend of both pr1 and pr2.
class pri1 {
int printing; //...
public:
pr1 () {printing = 0}
void set_print (int status) {printing = status;}
// ...
};
class pr2 {
int printing;
// ...
public:
pr2 () {printing = 0;}
void set_prt status) {printing = status; }
// ...
};
Date posted:
May 29, 2018
.
Answers (1)
-
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(Solved)
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class base {
int a;
public:
void load_a(int n) { a= n; }
int ge() { return a;}
};
class derived : public base {
int b;
public:
void load_b(int n) {b=n;}
int get_b() {return b;}
};
Date posted:
May 29, 2018
.
Answers (1)
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(Solved)
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May 29, 2018
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Answers (1)
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