How do you use smart pointers when trying to call a library function that was written before smart pointers were developed? Instead of passing smart pointers to functions, normally, you'll retrieve the smart-pointer's raw pointer using get(), and call the function with that. Complete the code below to double Frank's salary and to print his information. You may use a shared_ptr or a unique_ptr.
How do you use smart pointers when trying to call a library function that was written before smart pointers were developed? Instead of passing smart pointers to functions, normally, you'll retrieve the smart-pointer's raw pointer using get(), and call the function with that. Complete the code below to double Frank's salary and to print his information. You may use a shared_ptr or a unique_ptr.
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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Transcribed Image Text:How do you use smart pointers when trying to call a library function that was written before smart
pointers were developed? Instead of passing smart pointers to functions, normally, you'll retrieve the
smart-pointer's raw pointer using get(), and call the function with that. Complete the code below to
double Frank's salary and to print his information. You may use a shared_ptr or a unique_ptr.
memory.cpp
1 #include <iostream>
2 #include <string>
3 #include <memory>
4 using namespace std;
5
6 struct Employee {
string name;
double salary;
9 };
10 void print(const Employee* ep);
11 void raiseSalary(Employee* ep, double byPercent);
7
8
12
13 int main()
14 {
15
Employee *frank = new Employee{"Frank Ghiradelli", 24000.0};
raiseSalary(frank, 100.0); // double
print(frank); // print
16
17
18 }
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