c++/error: no matching function for call to calcGrossWages()

Question

/**************************************************************************************
 *  The program should display each employee number                                   *
 *  ask the user to enter that employee’s hours and pay rate.                         *
 *  It should then calculate the gross wages for that employee(hours times pay rate)  *
 *  store them in the wages array.                                                    *
 *  After the data has been entered for all the employees,                            *
 *  the program should display each employee’s identification number and gross wages. *
 **************************************************************************************/

#include <cstdlib>
#include <iostream>
#include <iomanip>

using namespace std; 


const int Num_Employees = 7;  // global constant of # of employees 

int empId[Num_Employees] = {5658846, 4520125, 785122, 877541, 8451277, 1302850, 7580489}; // array of Employee ID #'s 
int hours[7];       // empty array of 7 possible values for employee hours 
double payRate[7];  // empty array of 7 possible values for employee pay rates 
double wages[7];    // empty array of 7 possible values for employees wages (hours * pay rate)

void calcGrossWages(int[],  double[], double[]); // calculate gross wages prototype



int main() {


    // Employees
    for(int i= 0; i< Num_Employees; i++) {

        cout << "Your ID is: " << "" << empId[i] << endl; // displays each employee # 

        cout << "How many hours did you work?";  

        cin >> hours[i];



        cout << "What was your payRate?" << endl;

        cout <<"$";

        cin >> payRate[i]; 
    }

        /*Calculate the gross wages*/

    for(int i = 0; i < Num_Employees; i++) {

        wages[i] = calcGrossWages(hours[i], payRate[i], wages[i]);


    }

    }



//******************************************************************************
//* Definition of calcGrossWages function                                      *
//* This function calculates the employees Wages                               *
//* Wages are calculated by the # of hours worked by each employee             *
//* multiplied by their enter pay rate                                         *
// *****************************************************************************

void calcGrossWages(int hours[], double payRate[], double wages[]) 
{
    for (int i= 0; i< Num_Employees; i++) {

          wages[i] = hours[i] * payRate[i];

    }





}

问题：

如何正确地将数组作为参数传递给函数，从而允许在空数组中输入值？

为什么我会收到一条错误消息，提示没有匹配的调用函数 'calcGrossWages'

Answer 1

array[i]是一个数组元素，不是整个数组；您正在尝试传递 ints 和 doubles 而不是它们的数组。

由于数组的名称是 hours、payRate 和 wages，您可以这样调用函数：

/*Calculate the gross wages*/
calcGrossWages(hours, payRate, wages)

您不需要循环，因为该函数已经处理了整个数组，并且该函数没有 return 任何东西（结果存储在 wages 中）。

（附带说明一下，这些变量应该是 main 的局部变量，而不是全局变量。）

Answer 2

您应该在 calcGrossWages 中传递数组，而不是仅仅传递数组元素，并且不需要在 main 中循环调用 calcGrossWages

 /********************************************************************************   ******
 *  The program should display each employee    number                                   *
 *  ask the user to enter that employee’s hours and pay     rate.                         *
 *  It should then calculate the gross wages for that employee(hours times pay  rate)  *
 *  store them in the wages     array.                                                    *
 *  After the data has been entered for all the     employees,                            *
 *  the program should display each employee’s identification number and gross  wages. *
 ********************************************************************************   ******/

#include <cstdlib>
#include <iostream>
#include <iomanip>

using namespace std; 


const int Num_Employees = 7;  // global constant of # of employees 

int empId[Num_Employees] = {5658846, 4520125, 785122, 877541, 8451277, 1302850,     7580489}; // array of Employee ID #'s 
int hours[7];       // empty array of 7 possible values for employee hours 
double payRate[7];  // empty array of 7 possible values for employee pay rates 
double wages[7];    // empty array of 7 possible values for employees wages (   hours * pay rate)

void calcGrossWages(int[],  double[], double[]); // calculate gross wages   prototype



int main() {


    // Employees
    for(int i= 0; i< Num_Employees; i++) {

        cout << "Your ID is: " << "" << empId[i] << endl; // displays each  employee # 

        cout << "How many hours did you work?";  

        cin >> hours[i];



        cout << "What was your payRate?" << endl;

        cout <<"$";

        cin >> payRate[i]; 
    }

        /*Calculate the gross wages*/

    calcGrossWages(hours, payRate, wages);

    }




//******************************************************************************
//* Definition of calcGrossWages function                                      *
//* This function calculates the employees Wages                               *
//* Wages are calculated by the # of hours worked by each employee             *
//* multiplied by their enter pay rate                                         *
// *****************************************************************************

void calcGrossWages(int hours[], double payRate[], double wages[]) 
{
    for (int i= 0; i< Num_Employees; i++) {

          wages[i] = hours[i] * payRate[i];

    }





}

c++/error: no matching function for call to calcGrossWages()

c++/error: no matching function for call to calcGrossWages()

c++

arrays

compiler-errors

function

pass-by-reference