下午1:15 11月15日周一* 92%+: 0YYYExample driver code to test functions with Container a (e.g., at(a,i), construct.container(a), at, de-stroy_container(a), front(a), back(a), etc.):1 int main () {2Container a, b;3std::cout << "Container a, b;\n\n";4std::cout << "construct_container (a,5 ,0);";construct_container (a, 5, 0) ;std::cout << "\na = ";for (int i = 0; i < size (a); i++)std:: cout << at (a, i) << " ";5689std::cout « "\nsize(a) is " << size (a);std::cout << "\ncapacity (a) is " << capacity (a);101112131415std::cout << "\n\n//add elements to a\n";at (a, 0) = 10;16171819at (a, 3) = 5;std::cout << "at(a,0) = 10;\n";std::cout << "at (a,3) = 5;";std::cout << "\na = ";for (int i = 0; i < size (a); i++)std:: cout << at (a, i) << " ";2021int& cFront = front (a);std::cout << "\n\nfront (a) = "int& cBack = back (a);std::cout << "\nback (a)2223<< cFront;24<< cBack << "\n";2526272829destroy_container (a);std::cout « "\n//destroy container a\n";std::cout <« "destroy container (a);";3031std::cout << "\n\n0ptional exception handling:";32try {33std:: cout << "\nfront (a) = ":std:: cout <« front (a);3435}3637catch (std :: out_of_range e) { std :: cerr << e.what (); }383940try {std:: cout << "\nat (a,9) = ":std:: cout << at (a, 9);414243}catch (std: : string msg){std::cerr « "\n" << msg << std: : endl;}4445std::cout <<"\n\n-46// Create confidence tests for Container b as shown below4748 }2021 © Scott Bishop | Assistant Professor of Computer Science, Santa Monica College3 2. A struct Container with member variables size, capacity, and data.1 struct Container{2int size= 0;3int capacity = 0;int *data= nullptr;45 };13. Implement the Container Functions shown below.1 // Construct a Container c with asize sand initial value val.2 // Defaults are zero.3 void construct_container( Container& c,int s = 0, int val= 0 );45 // Destroy Container c and return memory to the freestore (heap).6 void destroy_container ( Container& c );78 // Returns pointer to the first element in Container c.9 int* data ( const Container& c );1011 // Returns the number of elements in Container c.12 int size ( const Container& c);1314 // Returns a reference15 // (optional) Throws std::string exception if out of bounds16 int& at ( Container& c, int i);17to the element at location i in Container v.18 // Returns a reference tothe last element in Container c.19 // (optional) Throws std::out-of_range exception if Container is empty20 int& back ( const Container& c );2122 // Returns the allocated storage for ContainerC.23 int capacity ( const Container& c );2425 // Erases the elements of Containerbut does not change capacity.26 void clear ( Container& c);2728 // If Container c is empty return true, else false.29 bool e mpty ( const Container& c);3031 // Returns a reference to the first element in the Container.32 // (optional) Throws exception if Container is empty.33 int& front ( constContainer & c );3435 // Deletes the last element of Container .36 void pop_back ( Container& c );3738 // Add element to the end of the Container c.39 void push_back ( Container& c, int element);4041 // Search for a key in Container c,42 //return index of key or -1 if not found43 int find key (Container &c, int key);

Summary: In this question, we have to make a container and do some operations on the container, so I…

Answered: Example driver code to test functions…

Example driver code to test functions with Container strov. container(a) front(a) backa) etc ): (e.g., at(a,i), construct.container(a), at, de- a

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Concept explainers

Concept of memory addresses in pointers

The concept of pointers in high-level languages was introduced in C programming. Pointers are simply the variables that are used to store memory addresses of another variable. These special variables are generally used in the languages such as C Programming and C++ Programming, where it allows the programmer to work more deeply with memory and its addresses.

Question

下午1:15 11月15日周一
* 92%
+: 0
YYY
Example driver code to test functions with Container a (e.g., at(a,i), construct.container(a), at, de-
stroy_container(a), front(a), back(a), etc.):
1 int main () {
2
Container a, b;
3
std::cout << "Container a, b;\n\n";
4
std::cout << "construct_container (a,5 ,0);";
construct_container (a, 5, 0) ;
std::cout << "\na = ";
for (int i = 0; i < size (a); i++)
std:: cout << at (a, i) << " ";
5
6
8
9
std::cout « "\nsize(a) is " << size (a);
std::cout << "\ncapacity (a) is " << capacity (a);
10
11
12
13
14
15
std::cout << "\n\n//add elements to a\n";
at (a, 0) = 10;
16
17
18
19
at (a, 3) = 5;
std::cout << "at(a,0) = 10;\n";
std::cout << "at (a,3) = 5;";
std::cout << "\na = ";
for (int i = 0; i < size (a); i++)
std:: cout << at (a, i) << " ";
20
21
int& cFront = front (a);
std::cout << "\n\nfront (a) = "
int& cBack = back (a);
std::cout << "\nback (a)
22
23
<< cFront;
24
<< cBack << "\n";
25
26
27
28
29
destroy_container (a);
std::cout « "\n//destroy container a\n";
std::cout <« "destroy container (a);";
30
31
std::cout << "\n\n0ptional exception handling:";
32
try {
33
std:: cout << "\nfront (a) = ":
std:: cout <« front (a);
34
35
}
36
37
catch (std :: out_of_range e) { std :: cerr << e.what (); }
38
39
40
try {
std:: cout << "\nat (a,9) = ":
std:: cout << at (a, 9);
41
42
43
}
catch (std: : string msg){std::cerr « "\n" << msg << std: : endl;}
44
45
std::cout <<
"\n\n-
46
// Create confidence tests for Container b as shown below
47
48 }
2021 © Scott Bishop | Assistant Professor of Computer Science, Santa Monica College
3

2. A struct Container with member variables size, capacity, and data.
1 struct Container{
2
int size
= 0;
3
int capacity = 0;
int *data
= nullptr;
4
5 };
1
3. Implement the Container Functions shown below.
1 // Construct a Container c with a
size s
and initial value val.
2 // Defaults are zero.
3 void construct_container( Container& c,
int s = 0, int val= 0 );
4
5 // Destroy Container c and return memory to the freestore (heap).
6 void destroy_container ( Container& c );
7
8 // Returns pointer to the first element in Container c.
9 int* data ( const Container& c );
10
11 // Returns the number of elements in Container c.
12 int size ( const Container& c);
13
14 // Returns a reference
15 // (optional) Throws std::string exception if out of bounds
16 int& at ( Container& c, int i);
17
to the element at location i in Container v.
18 // Returns a reference to
the last element in Container c.
19 // (optional) Throws std::out-of_range exception if Container is empty
20 int& back ( const Container& c );
21
22 // Returns the allocated storage for Container
C.
23 int capacity ( const Container& c );
24
25 // Erases the elements of Container
but does not change capacity.
26 void clear ( Container& c);
27
28 // If Container c is empty return true, else false.
29 bool e mpty ( const Container& c);
30
31 // Returns a reference to the first element in the Container.
32 // (optional) Throws exception if Container is empty.
33 int& front ( const
Container & c );
34
35 // Deletes the last element of Container .
36 void pop_back ( Container& c );
37
38 // Add element to the end of the Container c.
39 void push_back ( Container& c, int element);
40
41 // Search for a key in Container c,
42 //return index of key or -1 if not found
43 int find key (Container &c, int key);

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