未定义的数组访问问题 [英] undefined array access problem
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问题描述
大家好，
我需要你的帮助来解决这个问题。我有programme.not正确编译。它已经成为错误错误是我有大胆的错误地方
未定义引用'addStudent（student *，int&）'
hi all,
i need your help to solve this problem.i have programme.not compiling properly. it has become error the error is i have bold the error place
undefined reference to 'addStudent(student*, int&)'
#include <iostream>
#include <iomanip>
#include <math.h>
#include <stdlib.h> //for system("cls")
#include <process.h> //for exit()
#include <conio.h>
using namespace std;
const int MAX_NO_OF_STUDENTS = 100;
struct student
{
char indexNo[10];
double marks[1][3];
char grade;
double zScore;
};
double result[7][3];
/*************************************************************
* Function prototype declarations *
* *
**************************************************************/
int mainMenu(); //Prints the main menu
void reportSubMenu(); //Prints the report sub menu
void graphSubMenu(); //Prints the graph sub menu
int addStudent(student child[], int&); //the function to add a student
void saveRecords(student child[], int&); //the function to save a record
void loadRecords(student child[], int&); //the function to load a record
void searchStudent(student[], int&); //the function to search a student
void printResultSheet(const student[], double[][3]); //Prints the result sheet
void printSubjectSummary(const student[], double[][3]); //Prints the subject summary
void gradeAnalysis(const student[], double[][3]); //Prints the graph of grade analysis
void subjectAnalysis(const student[], double[][3]); //Prints the graph of subject analysis
double meanCalculation(const student[], double[][3], int); //Calculate mean
double standardDeviationCalculation(const student[], double[][3], int); //Calculate standard deviation
int calculateGradeCount(const student[], double[][3]); //Calculate the grade count
double calculateZScore(student[], const double[][3], int); //Calculate the z score
/*************************************************************
* Main method *
* *
**************************************************************/
int main()
{
student child[MAX_NO_OF_STUDENTS];
int currentStudentCount = 0; //keeps the current student count
int choice = 0; //keeps the input value given by the user in tha main menu
choice = mainMenu();
do{
switch (choice)
{
case 1 : addStudent(child, currentStudentCount); // Error Start Place
currentStudentCount++;
break;
case 2 : saveRecords(child, currentStudentCount);
break;
case 3 : loadRecords(child, currentStudentCount);
break;
case 4 : searchStudent(child, currentStudentCount);
break;
case 5 : reportSubMenu();
break;
case 6 : graphSubMenu();
break;
case 7 : exit(0);
default : cout << "Enter a valid number. " << endl;
}
} while (choice < 8);
return 0;
}
/*************************************************************
* Function declaration of Main Menu *
* *
**************************************************************/
int mainMenu()
{
system("cls");
int number = 0;
cout << char(201) << char(205) << char(205) << char(205) << char(205) << char(205) << char(205) << char(205)
<< char(205) << char(205) << char(205) << char(205) << char(205) << char(205) << char(205) << char(205)
<< char(205) << char(205) << char(205) << char(205) << char(205) << char(205) << char(205) << char(205)
<< char(187) << endl;
cout << char(186) << " Main Menu " << char(186) << endl;
cout << char(186) << " " << char(205) << char(205) << char(205) << char(205) << char(205) << char(205) << char(205)
<< char(205) << char(205) << char(205) << char(205) << char(205) << char(205) << char(205) << char(205)
<< char(205) << char(205) << char(205) << char(205) << char(205) << char(205) << " " << char(186) << endl;
cout << char(186) << " " << char(186) << endl;
cout << char(186) << " [1] Add Student " << char(186) << endl;
cout << char(186) << " [2] Save Records " << char(186) << endl;
cout << char(186) << " [3] Load Records " << char(186) << endl;
cout << char(186) << " [4] Search Student " << char(186) << endl;
cout << char(186) << " [5] Print Reports " << char(186) << endl;
cout << char(186) << " [6] Print Graphs " << char(186) << endl;
cout << char(186) << " [7] Exit " << char(186) << endl;
cout << char(186) << " " << char(186) << endl;
cout << char(200) << char(205) << char(205) << char(205) << char(205) << char(205) << char(205) << char(205)
<< char(205) << char(205) << char(205) << char(205) << char(205) << char(205) << char(205) << char(205)
<< char(205) << char(205) << char(205) << char(205) << char(205) << char(205) << char(205) << char(205)
<< char(188) << endl;
cout << "\nEnter your choice [1-7] : " ;
cin >> number ;
return number;
}
/*************************************************************
* Function declaration of Report Sub Menu *
* *
**************************************************************/
void reportSubMenu()
{
student child[MAX_NO_OF_STUDENTS];
system("cls");
int number = 0;
cout << "\n" << endl;
cout << char(201) << char(205) << char(205) << char(205) << char(205) << char(205) << char(205) << char(205)
<< char(205) << char(205) << char(205) << char(205) << char(205) << char(205) << char(205) << char(205)
<< char(205) << char(205) << char(205) << char(205) << char(205) << char(205) << char(205) << char(205)
<< char(205) << char(205) << char(205) << char(205) << char(187) << endl;
cout << char(186) << " Report Sub Menu " << char(186) << endl;
cout << char(186) << " " << char(205) << char(205) << char(205) << char(205) << char(205) << char(205) << char(205)
<< char(205) << char(205) << char(205) << char(205) << char(205) << char(205) << char(205) << char(205)
<< char(205) << char(205) << char(205) << char(205) << char(205) << char(205) << char(205) << char(205)
<< char(205) << char(205) << " " << char(186) << endl;
cout << char(186) << " " << char(186) << endl;
cout << char(186) << " [1] Print Result Sheet " << char(186) << endl;
cout << char(186) << " [2] Print Subject Summary " << char(186) << endl;
cout << char(186) << " [3] Back to Main Menu " << char(186) << endl;
cout << char(186) << " " << char(186) << endl;
cout << char(200) << char(205) << char(205) << char(205) << char(205) << char(205) << char(205) << char(205)
<< char(205) << char(205) << char(205) << char(205) << char(205) << char(205) << char(205) << char(205)
<< char(205) << char(205) << char(205) << char(205) << char(205) << char(205) << char(205) << char(205)
<< char(205) << char(205) << char(205) << char(205) << char(188) << endl;
cout << "\nEnter your choice [1-7] : " ;
cin >> number ;
switch (number)
{
case 1 : printResultSheet(child, result);
break;
case 2 : printSubjectSummary(child, result);
break;
case 3 : mainMenu();
break;
default : cout << "Enter a valid number. ";
}
}
/*************************************************************
* Function declaration of Graph Sub Menu *
* *
**************************************************************/
void graphSubMenu()
{
student child[MAX_NO_OF_STUDENTS];
system("cls");
int number = 0;
cout << "\n" << endl;
cout << char(201) << char(205) << char(205) << char(205) << char(205) << char(205) << char(205) << char(205)
<< char(205) << char(205) << char(205) << char(205) << char(205) << char(205) << char(205) << char(205)
<< char(205) << char(205) << char(205) << char(205) << char(205) << char(205) << char(205) << char(205)
<< char(205) << char(205) << char(187) << endl;
cout << char(186) << " Graph Sub Menu " << char(186) << endl;
cout << char(186) << " " << char(205) << char(205) << char(205) << char(205) << char(205) << char(205) << char(205)
<< char(205) << char(205) << char(205) << char(205) << char(205) << char(205) << char(205) << char(205)
<< char(205) << char(205) << char(205) << char(205) << char(205) << char(205) << char(205) << char(205)
<< " " << char(186) << endl;
cout << char(186) << " " << char(186) << endl;
cout << char(186) << " [1] Graph Analysis " << char(186) << endl;
cout << char(186) << " [2] Subject Analysis " << char(186) << endl;
cout << char(186) << " [3] Back to Main Menu " << char(186) << endl;
cout << char(186) << " " << char(186) << endl;
cout << char(200) << char(205) << char(205) << char(205) << char(205) << char(205) << char(205) << char(205)
<< char(205) << char(205) << char(205) << char(205) << char(205) << char(205) << char(205) << char(205)
<< char(205) << char(205) << char(205) << char(205) << char(205) << char(205) << char(205) << char(205)
<< char(205) << char(205) << char(188) << endl;
cout << "\nEnter your choice [1-3] : " ;
cin >> number ;
switch (number)
{
case 1 : gradeAnalysis(child, result);
break;
case 2 : subjectAnalysis(child, result);
break;
case 3 : mainMenu();
break;
default : cout << "Enter a valid number. ";
}
}
/*************************************************************
* Function declaration of adding a student *
* *
**************************************************************/
int addStudent(student child[], int currentCount)
{
return 0;
}
/*************************************************************
* Function declaration of saving a record *
* *
**************************************************************/
void saveRecords(struct student students[], int currentCount)
{
}
/*************************************************************
* Function declaration of loading a record *
* *
**************************************************************/
void loadRecords(struct student students[], int currentCount)
{
}
/*************************************************************
* Function declaration of searching a student *
* *
**************************************************************/
void searchStudent(struct student students[], int currentCount)
{
}
/*************************************************************
* Function declaration of printing result sheet *
* *
**************************************************************/
void printResultSheet(struct student students[], double marks[][3])
{
}
/*************************************************************
* Function declaration of printing subject summary *
* *
**************************************************************/
void printSubjectSummary(struct student students[], double marks[][3])
{
}
/*************************************************************
* Function declaration of graph of grade analysis *
* *
**************************************************************/
void gradeAnalysis(struct student students[], double marks[][3])
{
system("cls");
cout << "\n" << endl;
cout << " Grade Analysis " << endl;
cout << " ==================== " << endl;
cout << char(176) << endl;
cout << char(177) << endl;
cout << char(178) << endl;
}
/*************************************************************
* Function declaration of graph of subject analysis *
* *
**************************************************************/
void subjectAnalysis(struct student students[], double marks[][3])
{
system("cls");
cout << "\n" << endl;
cout << " Subject Analysis " << endl;
cout << " ====================== " << endl;
cout << char(176) << endl;
cout << char(177) << endl;
cout << char(178) << endl;
}
/*************************************************************
* Function declaration of calculating mean *
* *
**************************************************************/
double meanCalculation(struct student students[], double marks[][3], int currentCount)
{
return 50.0;
}
/*************************************************************
* Function declaration of claculating standard deviation *
* *
**************************************************************/
double standardDeviationCalculation(struct student students[], double marks[][3], int currentCount)
{
return 100.0;
}
/*************************************************************
* Function declaration of calculating grade count *
* *
**************************************************************/
int calculateGradeCount(struct student students[], double marks[][3])
{
return 50;
}
/*************************************************************
* Function declaration of Calculating Z Score *
* *
**************************************************************/
double calculateZScore(struct student students[], const double marks[][3], int currentCount)
{
return 3.0256;
}推荐答案
You are getting link errors and if you examine them carefully they will tell you the problem.
For example your declaration:
You are getting link errors and if you examine them carefully they will tell you the problem.
For example your declaration:
int addStudent(student child[], int&);
does not match implementation:
does not match implementation:
int addStudent(student child[], int currentCount)
{
return 0;
}
meaning that there is nothing to link to for your call to
meaning that there is nothing to link to for your call to
case 1 : addStudent(child, currentStudentCount); // Error Start Place
and etc and etc.
and etc and etc.
这篇关于未定义的数组访问问题的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
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