lease help me with my problem! Computer Science
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
Related questions
Question
Please help me with my problem!
Computer Science
![One problem with dynamic arrays is that they don't carry around their size. Create a structure,
DynArray which uses a unique pointer for a dynamic array (data), and an int for the size
and capacity.
dynarray.h
1 #ifndef DYNARRAY H
2 #define DYNARRAY H
3
4 #include <iostream>
5
#include <memory>
6
7
8
9
10
11
struct DynArray {
};
unique_ptr<int[]> data;
int size;
int capacity;
12
13 std::ostream& operator<<(std::ostream&
14 std::istream& operator>>(std::istream&
15 DynArray makeDA (int capacity);
16
17
#endif
out, const DynArray& a);
in, DynArray& a);](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F9b52ec0e-1718-4a1e-8f5b-618ac05e1ee0%2Ffad98e16-164c-44d1-a81a-6190c1a69e94%2Fsfcrfq_processed.png&w=3840&q=75)
Transcribed Image Text:One problem with dynamic arrays is that they don't carry around their size. Create a structure,
DynArray which uses a unique pointer for a dynamic array (data), and an int for the size
and capacity.
dynarray.h
1 #ifndef DYNARRAY H
2 #define DYNARRAY H
3
4 #include <iostream>
5
#include <memory>
6
7
8
9
10
11
struct DynArray {
};
unique_ptr<int[]> data;
int size;
int capacity;
12
13 std::ostream& operator<<(std::ostream&
14 std::istream& operator>>(std::istream&
15 DynArray makeDA (int capacity);
16
17
#endif
out, const DynArray& a);
in, DynArray& a);
![memory.cpp
1 #include <iostream>
2 #include <string>
3 #include "dynarray.h"
using namespace std;
4
5
6
7
8
9
10
11
12
13
14
15
16
17
int main()
{
0
}
cout << "Array capacity: ";
int capacity;
cin >> capacity;
CodeCheck
Score
auto a = makeDA (capacity);
cout << "Enter up to " << capacity << numbers: ;
cin >> a;
cout << "a->" << a << endl;
Running memory.cpp
Error:
Reset
In file included from memory.cpp:3:
dynarray.h:8:5: error: 'unique_ ptr' does not name a type
unique_ptr<int[]> data;
8
11
dynarray.h:8:5: error: 'unique_ptr' does not name a type
unique_ptr<int[]> data;
8 |](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F9b52ec0e-1718-4a1e-8f5b-618ac05e1ee0%2Ffad98e16-164c-44d1-a81a-6190c1a69e94%2F2ahdbkn_processed.png&w=3840&q=75)
Transcribed Image Text:memory.cpp
1 #include <iostream>
2 #include <string>
3 #include "dynarray.h"
using namespace std;
4
5
6
7
8
9
10
11
12
13
14
15
16
17
int main()
{
0
}
cout << "Array capacity: ";
int capacity;
cin >> capacity;
CodeCheck
Score
auto a = makeDA (capacity);
cout << "Enter up to " << capacity << numbers: ;
cin >> a;
cout << "a->" << a << endl;
Running memory.cpp
Error:
Reset
In file included from memory.cpp:3:
dynarray.h:8:5: error: 'unique_ ptr' does not name a type
unique_ptr<int[]> data;
8
11
dynarray.h:8:5: error: 'unique_ptr' does not name a type
unique_ptr<int[]> data;
8 |
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by step
Solved in 3 steps with 2 images
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.Recommended textbooks for you
Database System Concepts
Computer Science
ISBN:
9780078022159
Author:
Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:
McGraw-Hill Education
Starting Out with Python (4th Edition)
Computer Science
ISBN:
9780134444321
Author:
Tony Gaddis
Publisher:
PEARSON
Digital Fundamentals (11th Edition)
Computer Science
ISBN:
9780132737968
Author:
Thomas L. Floyd
Publisher:
PEARSON
Database System Concepts
Computer Science
ISBN:
9780078022159
Author:
Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:
McGraw-Hill Education
Starting Out with Python (4th Edition)
Computer Science
ISBN:
9780134444321
Author:
Tony Gaddis
Publisher:
PEARSON
Digital Fundamentals (11th Edition)
Computer Science
ISBN:
9780132737968
Author:
Thomas L. Floyd
Publisher:
PEARSON
C How to Program (8th Edition)
Computer Science
ISBN:
9780133976892
Author:
Paul J. Deitel, Harvey Deitel
Publisher:
PEARSON
Database Systems: Design, Implementation, & Manag…
Computer Science
ISBN:
9781337627900
Author:
Carlos Coronel, Steven Morris
Publisher:
Cengage Learning
Programmable Logic Controllers
Computer Science
ISBN:
9780073373843
Author:
Frank D. Petruzella
Publisher:
McGraw-Hill Education