Answered: #include #include #include class…

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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Question

#include <string>
#include <iostream>
#include <vector>
class Snack{
public:
Snack(std::string, float, bool);
int set_price(float);
void set_expired(bool);
void set_name(std::string);
std::string name() const{return name_;}
float price() const{return price_;}
bool expired() const{return expr_;}
int how_many_for_ten();
private:
std::string name_;
float price_;
bool expr_;
};
void SortByPrice(std::vector<Snack>&,bool);

Task:

Define the public function int Snack::set_price(float price) :

If the value passed by price is smaller than 0 the function should return -2.

If the value of price is greater or equal to 0, proceed as follows:

If the value passed by price is smaller than the current value of price_, the function should assign price to price_ and return -1.
If the value passed by price is larger than the current value of price_, the function should assign price to price_ and return 1.
If price is equal to price_, the function should assign price to price_ and return 0.

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