tatic const int MAX_SIZE=10; / Return the max value tatic double max(double d1) static double lastMax = e; lastMax = (d1 > lastMax) ? di : lastmax; return lastmax; / singleton class only one instance allowed lass singleton public: static singleton& getsingleton() { return theone; } // Returns the singleton friend std::ostream& operator<« (std::0stream& o, const singleton& s); private: Singleton() { }; // Prevents more instances static singleton theOne; ingleton Singleton::theOne; nt main() static singleton& s = singleton::getsingleton(); double array[MAX_SIZE] = { 1.1, 5.5, 3.3, 7.7, 4.4, 9.9, 2.2, 6.6, 8.8, e }; for (double maxval : array) std::cout <« "max: " « max(maxval) « std::endl; std::cout « s; return e; / insertion operator<< td::ostream& operator<« (std: :ostream& o, const singleton& s) O s "Outout sineleton\n":

Programming with Microsoft Visual Basic 2017
8th Edition
ISBN:9781337102124
Author:Diane Zak
Publisher:Diane Zak
Chapter10: Classes And Objects
Section: Chapter Questions
Problem 7E
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Look at the code below and use the following comments to incdicate the scope of the static variables or functions. Place the comment below the relevant line.
Module scope
Class scope
Function scope
The code runs. Use onlinegdb.com to see it run. Module scope means global but only known in this source file. Class scope means global but only known by the class. Function scope means global but only known in the function.
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1 #include <iostream>
2
static const int MAX_SIZE=10;
5 // Return the max value
6 static double max(double d1)
7 {
static double lastMax = 0;
lastMax = (di > lastMax) ? di : lastMax;
return lastMax;
8
10
11 }
12
13 // singleton class only one instance allowed
14 class singleton
15 {
public:
static Singleton& getsingleton() { return theone; }
// Returns the Singleton
16
17
18
19
20
friend std::ostream& operator<< (std::ostream& o, const Singleton& s);
private:
Singleton() { };
// Prevents more instances
21
22
23
24
25
static Singleton theone;
26 };
27 Singleton Singleton::theOne;
28
29
30 int main()
31 {
static Singleton& s = Singleton::getsingleton();
32
33
double array[MAX_SIZE] = { 1.1, 5.5, 3.3, 7.7, 4.4, 9.9, 2.2, 6.6, 8.8, e };
34
for (double maxval : array)
std::cout << "max: " << max (maxval) << std::endl;
35
36
37
38
std::cout <« s;
39
return e;
40 }
41
42 // insertion operator«
43 std::ostream& operator<« (std::ostream& o, const singleton& s)
44 {
45
o « "Output singleton\n";
46 }
47
Transcribed Image Text:Look at the code below and use the following comments to incdicate the scope of the static variables or functions. Place the comment below the relevant line. Module scope Class scope Function scope The code runs. Use onlinegdb.com to see it run. Module scope means global but only known in this source file. Class scope means global but only known by the class. Function scope means global but only known in the function. Hide Comments 1 #include <iostream> 2 static const int MAX_SIZE=10; 5 // Return the max value 6 static double max(double d1) 7 { static double lastMax = 0; lastMax = (di > lastMax) ? di : lastMax; return lastMax; 8 10 11 } 12 13 // singleton class only one instance allowed 14 class singleton 15 { public: static Singleton& getsingleton() { return theone; } // Returns the Singleton 16 17 18 19 20 friend std::ostream& operator<< (std::ostream& o, const Singleton& s); private: Singleton() { }; // Prevents more instances 21 22 23 24 25 static Singleton theone; 26 }; 27 Singleton Singleton::theOne; 28 29 30 int main() 31 { static Singleton& s = Singleton::getsingleton(); 32 33 double array[MAX_SIZE] = { 1.1, 5.5, 3.3, 7.7, 4.4, 9.9, 2.2, 6.6, 8.8, e }; 34 for (double maxval : array) std::cout << "max: " << max (maxval) << std::endl; 35 36 37 38 std::cout <« s; 39 return e; 40 } 41 42 // insertion operator« 43 std::ostream& operator<« (std::ostream& o, const singleton& s) 44 { 45 o « "Output singleton\n"; 46 } 47
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