헤더 및 클래스 정의 파일을 사용할 때 해결되지 않은 외부 기호 오류

Question

내 변수 선언 및 정의가 그 자리에 있지만 그 점은 아니라고 확신합니다. 이 과제를 위해 편집 할 수없는 기본 cpp 파일을 받았고 헤더와 클래스 cpp 파일을 만들어야했습니다. 해결되지 않은 외부 기호 오류가 발생하여이를 파악하지 못하는 것 같습니다.

:

#include "stdafx.h" 
#include <string> 
#include <iostream> 
#include "RestaurantCheck.h" 
using namespace std; 

int orderTotal = 0; //totals the number of items ordered 

double custTip = 0; 
double custTax = 0; 

double subTip; //assigned to calculated tip 
double subTax; // assigned to calculated tax 

const static int maxNum = 12; // array limiter 
const static int userLim = 5; //limits user choices to 5 max 

double subtotal; //used in calctip & calctax 
double total; //used to display final total 
int menuCount; //for loop counters 
int orderCount; //for loop counters 

double menuPrice[maxNum] = { 0, 1.25, 4.25, 5.75, 7.95, 6.95, 2.50, 1.95, 4.25, 5.25, 6.25, 0 }; //menu price array 
const static std::string menuDesc[maxNum] = {" ", "Eggroll", "Pot Stickers", "Terriyaki Chicken", "Terriyaki Pork", 
              "Terriyaki Beef", "Wonton Soup", "Egg Drop Soup", "Chicken Fried Rice", 
              "Pork Fried Rice", "Veggie Fried Rice", "To finish the order choose this option." }; //menu description array 
double userChoice[userLim]; //Users array for ordering 

bool RestaurantCheck::testTaxRate(double tax) //tax tester return bool 
{ 
    if (tax >= 0.01 && tax <= 0.12) 
    { 
     return true; 
    } else { 
     return false; 
    } 
    return false; 
} 

bool RestaurantCheck::testTipRate(double tip) //tip tester return bool 
{ 
    if (tip >= 0.05 && tip <= 0.20) 
    { 
     return true; 
    } else { 
     return false; 
    } 
    return false; 
} 

void RestaurantCheck::presentMenu() //displays the menu 
{ 
    for (menuCount = 1; menuCount <= maxNum; menuCount++) 
    { 
     cout << menuCount << ". " << menuDesc[menuCount] << " $" << menuPrice[menuCount]; 
     if(menuCount % 2 == 0) //makes two objects per line 
     { 
      cout << endl; 
     } 
    } 
} 

bool RestaurantCheck::placeOrder() //prompts user to answer up to 5 choices w/ a SENTINEL value to stop ordering; 
{ 
    presentMenu(); 
    int input; 
    for(orderCount = 0; orderCount <= userLim; orderCount++) 
    { 
     cout << "Enter order #" << orderCount+1; 
     cin >> input; 
     switch (input) { 
     case 1: 
     case 2: 
     case 3: 
     case 4: 
     case 5: 
     case 6: 
     case 7: 
     case 8: 
     case 9: 
     case 10: 
      userChoice[input] = menuPrice[input]; //userchoice is added to array and subtotal is added 
      subtotal += menuPrice[input]; 
      orderTotal++; 
      return true; 
      break; 
     case 11: 
      return false; 
     //SENTINEL value. Order completes here. 
     default: 
      return false; 
     } 
     return false; 
    } 
    return false; 
} 

double RestaurantCheck::calculateTax() //caluculates tax 
{ 
    subTax = subtotal * custTax; 
    return 0; 
} 

double RestaurantCheck::calculateTip() //calculates tips 
{ 
    subTip = subtotal * custTip; 
    return 0; 
} 

void RestaurantCheck::issueCheck() //displays items ordered, subtotal, tax, tip, and total 
{ 
    calculateTax(); 
    calculateTip(); 
    system("cls"); 
    cout << "Customer Check" << endl; 
    int i; //temp loop counter 
    for (i = 1; i <= orderTotal; i++) //displays ordered items 
    { 
     cout << i << ". " << menuDesc[i] << " $" << menuPrice[i] << endl; 
    } 

    total = subtotal + subTax + subTip; 
    cout << subtotal; 
    cout << subTax; 
    cout << subTip; //ALIGN W/ DECIMAL POINTS. 2 DIGITS OF RECISION AFTER THE DECIMAL POINT 
    cout << total; 
//display subtotal/total/tax/tip 
//display userchoice array with limit of ordertotal 
} 

가 여기에 내가 점점 오전 오류입니다

main.ccp

#include "stdafx.h"   // Defines external definiton files required 
#include <iostream>   // Defines objects and classes used for stream I/O 
#include <iomanip>   // Defines output stream manipulators 
#include "RestaurantCheck.h" 

int main() 
{ 
// Variable Declarations 
double taxRate; 
double tipRate; 


// Display a description of the solution 
cout << "PROG-111: Project #8, Version 2 Solution\n\n"; 

do 
{ // Solicit the tax rate, as a percntage, from the User 
    cout << "Enter the tax rate, as a %: "; 
    cin >> taxRate; 
} while (!RestaurantCheck::testTaxRate(taxRate)); 

do 
{ // Solicit the tip, as a percntage, from the User 
    cout << "Enter the tip, as a %: "; 
    cin >> tipRate; 
} while (!RestaurantCheck::testTipRate(tipRate)); 


// Instantiate a Restuarant Check object 
RestaurantCheck order(taxRate, tipRate); 

if (!order.placeOrder()) 
    cout << "\nYou have elected NOT to enter an Order!" << endl; 
else 
{ // An Order was successfully entered... 
    cin.ignore(cin.rdbuf()->in_avail(), '\n'); 
    cout << "\nPress \"Enter\" when ready for the customer's check: "; 
    cin.get(); 

    // Display the Customer's Check 
    order.issueCheck(); 
} 


// This prevents the Visual Studio Console Window from closing during 
// debug mode. 
// This next statement purges any characters, if any, remaining in the 
// Console input buffer, BEFORE "cin.get()" looks for the "new line" character 
cin.ignore(cin.rdbuf()->in_avail(), '\n'); 
cout << "\nPress \"Enter\" to Exit the program: "; 
cin.get(); 

return 0; 
} 

RestaurantCheck.h

#include <string> 
#include "stdafx.h" 
class RestaurantCheck 
{ 
private: 
static double custTip; //assigned to given tip amount 
static double custTax; // assigned to given tax amount 
public: 
const static int maxNum = 12; // array limiter 
const static int userLim = 5; //limits user choices to 5 max 
const static double menuPrice[maxNum]; //menu price array 
const static std::string menuDesc[maxNum]; //menu description array 
double userChoice[userLim]; //array to hold user choices 

double calculateTax(); //calculates tax 
double calculateTip(); //calculates tip 


static bool testTaxRate(double tempTax); //function to test tax 
static bool testTipRate(double tempTip); //function to test tip 

bool placeOrder(); //function to assign to user order arrays 

void presentMenu(); //displays the menu 

void issueCheck(); //displays user receipt 


RestaurantCheck::RestaurantCheck() //default constructor 
{ 
    custTip = 0.15; 
    custTax = 0.065; 
} 

RestaurantCheck(double taxRate, double tipRate) //user answer constructor 
{ 
    custTax = (taxRate/100); 
    custTip = (tipRate/100); 
} 
}; 

및 RestaurantCheck.cpp : 여기에 코드입니다

1>Project7B.obj : error LNK2001: unresolved external symbol "private: static double RestaurantCheck::custTax" (?custTax@RestaurantCheck@@0NA) 
1>RestaurantCheck.obj : error LNK2019: unresolved external symbol "private: static double RestaurantCheck::custTax" (?custTax@RestaurantCheck@@0NA) referenced in function "public: void __thiscall std::allocator<char>::construct<char *,char * &>(char * *,char * &)" (??$construct@PADAAPAD@?$allocator@D@std@@QAEXPAPADAAPAD@Z) 
1>RestaurantCheck.obj : error LNK2001: unresolved external symbol "public: static double const * const RestaurantCheck::menuPrice" (?menuPrice@RestaurantCheck@@2QBNB) 
1>RestaurantCheck.obj : error LNK2001: unresolved external symbol "public: static class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const * const RestaurantCheck::menuDesc" (?menuDesc@RestaurantCheck@@2QBV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@B) 

어떤 도움을 주셔서 감사합니다.

Answer 1

첫 번째와 가장 중요한 것 : 테스트하기 전에 많은 코드를 작성하지 마십시오. 작고 간단하게 시작하고, (아무 것도하지 않더라도) 완벽하게 작동 할 수있는 무언가를 얻고, 조금씩 복잡성을 추가하고, 매 단계마다 테스트하고 은 작동하지 않는 코드에 절대 추가하지 마십시오.

구체적으로 변수 custTax을 살펴보십시오. 당신은 정적 멤버 변수로 RestaurantCheck.h에을의 선언,하지만 전역 변수

double custTax = 0; 

올바른 방법은 다음과 같이 그대로 RestaurantCheck.cpp에 잘못을 정의

double RestaurantCheck::custTax = 0; 

당신은 비슷한 문제를 갖고있는 것 같다 cistTip, menuPrice 및 menuDesc입니다.

메서드 정의 - 생성자 정의 포함 -은 소스 파일 (예 : RestaurantCheck.cpp)에 속하지만 헤더 파일 (예 : RestaurantCheck.h)에 속하지 않습니다.