A Laboratory Course in C++, 5th Edition

Chapter 10: Prelab Assignment

User-Defined Data Types | 233

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Exercise 1: Program Gauge reads int values and converts them to the appropriate constant in an

enumeration type. The constants in the enumeration type are used as the case labels in a switch

statement that controls which message is printed.

// Program Gauge inputs pressure readings from file gauge.dat

// and writes appropriate messages.

#include <iostream>

#include <fstream>

using namespace std;

enum DecisionType {ERROR, NORMAL, HIGH, EVACUATE};

DecisionType GetPressure(ifstream&); ...