“+1 超载 --- Function 未找到“...”的定义”以及“无法启动程序。系统找不到指定的文件”

Question

This code is written for homework where I am prompting user input to calculate hospital bills based on whether the patient was admitted as an inpatient or an outpatient, along with user-inputted rates and charges. The issue I am having is that when I try to run the code, the system first tells me that there are build errors and asks if I would like to continue. After continuing, I get the following error message:

"Unable to start program. [File Path] The system cannot find the specified file"

I was going through my code and the only thing I could see was that the function prototypes before the main function had a message stating that the function definition could not be found.

Are there issues with my code or is this purely an issue with Visual Studio 2017? My directory doesn't look out of order or anything like that.

// PGM6 - Overloaded Hospital - 11.15.2020

#include "pch.h"
#include <iostream>
#include <string>
#include <iomanip>

using namespace std;

double inpatient(int days, double rateDaily, double chargesService, double chargesMeds, double chargesTotal);
double outpatient(double chargesService, double chargesMeds, double chargesTotal);

int main()
{
    int patientType;

    cout << "Please enter (1) for Inpatient or (2) for Outpatient" << endl;
    cin >> patientType;

    if (patientType == 1)
        double inpatient();
    else 
        if (patientType == 2)
            double outpatient();
        else
            cout << "Please enter (1) or (2)." << endl;
}

double inpatient()
{
    int days;
    double rate;
    double chargesService;
    double chargesMeds;
    double chargesTotal = (days * rate) + chargesService + chargesMeds;

    cout << "Days: ";
    cin >> days;
    cout << endl;

    cout << "Daily Rate: ";
    cin >> rate;
    cout << endl;

    cout << "Service Charges: ";
    cin >> chargesService;
    cout << endl;

    cout << "Medication Charges: ";
    cin >> chargesMeds;
    cout << endl << endl;

    cout << "Total Charges: " << chargesTotal << endl;

    return chargesTotal;

}

double outpatient()
{
    double chargesService;
    double chargesMeds;
    double chargesTotal = chargesService + chargesMeds;

    cout << "Service Charges: ";
    cin >> chargesService;
    cout << endl;

    cout << "Medication Charges: ";
    cin >> chargesMeds;
    cout << endl << endl;

    cout << "Total Charges: " << chargesTotal << endl;

    return chargesTotal;
}

Answer 1

Here is what you did wrong

1. The prototypes of your functions didn't need parameters as the values are typed by the user within the function.
2. When you call outpatient and inpatient, just type the name of the function with the parenthesis (don't type double in front, that's a new declaration).
3. chargesTotal had to be initialized just before printing it (after asking the needed values to the user)

I think this working code do what you need:

#include <iomanip>
#include <iostream>
#include <string>

using namespace std;

double inpatient();
double outpatient();

int main()
{
    int patientType;

    cout << "Please enter (1) for Inpatient or (2) for Outpatient" << endl;
    cin >> patientType;

    if(patientType == 1)
    inpatient();
    else if(patientType == 2)
    outpatient();
    else
    cout << "Please enter (1) or (2)." << endl;
}

double inpatient()
{
    int days;
    double rate;
    double chargesService;
    double chargesMeds;

    cout << "Days: ";
    cin >> days;
    cout << endl;

    cout << "Daily Rate: ";
    cin >> rate;
    cout << endl;

    cout << "Service Charges: ";
    cin >> chargesService;
    cout << endl;

    cout << "Medication Charges: ";
    cin >> chargesMeds;
    cout << endl << endl;

    double chargesTotal = (days * rate) + chargesService + chargesMeds;

    cout << "Total Charges: " << chargesTotal << endl;

    return chargesTotal;
}

double outpatient()
{
    double chargesService;
    double chargesMeds;

    cout << "Service Charges: ";
    cin >> chargesService;
    cout << endl;

    cout << "Medication Charges: ";
    cin >> chargesMeds;
    cout << endl << endl;

    double chargesTotal = chargesService + chargesMeds;
    cout << "Total Charges: " << chargesTotal << endl;

    return chargesTotal;
}