searchID不能用作函数错误

Question

我刚学了一些基本的数组主题，我想问为什么我的函数 searchID 不能用作函数。我已经检查了原型，调用函数和函数头的参数数量。你能指出我的错误吗？

＆＃13;

＆＃13;

#include<iostream>
using namespace std;
void getScore(int[],int,long[],int&);
void searchID(long[],int,bool&,int[]);
int main()
{
	int SIZE;
	long ID[SIZE],winnerID,searchID;
	int score1st[SIZE],score2nd[SIZE],totalScore[SIZE], avg1st, avg2nd,count;
	
	cout<<"Enter the number of players: ";
	cin>>SIZE;
	
	for(int i=0;i<SIZE;i++)
	{
		cout<<"Enter bowler "<<i+1<<"'s ID: ";
		cin>>ID[i];
	}
	cout<<"\nFIRST ROUND SCORES: \n";
	getScore(score1st,SIZE,ID,avg1st);
	cout<<"\nSECOND ROUND SCORES: \n";
	getScore(score2nd,SIZE,ID,avg2nd);
	cout<<"\nThe player(s) who improve the scores in the second round:\n";
	for(int k=0;k<SIZE;k++)
	{
		if(score2nd[k]>score1st[k])
		{
			cout<<"Player "<<k+1<<", ID "<<ID[k]<<endl;
		}
	}
	cout<<"\nThe average score for the first round: "<<avg1st;
	cout<<"\nThe average score for the second round: "<<avg2nd;
	int highScore=totalScore[0];
	for(int m=0;m<SIZE;m++)
	{
		totalScore[m]=score1st[m]+score2nd[m];
		if(totalScore[m]>highScore)
		{
			highScore=totalScore[m];
			winnerID=ID[m];
			count=m+1;
		}
	}
	cout<<"\nThe WINNER is: Player"<<count<<", ID "<<winnerID<<" with the HIGHEST score "<<highScore<<endl<<endl;
	bool idFound=false;
	searchID(ID,SIZE,idFound,totalScore);
	while(!idFound)
	{
		cout<<"The data is not available!\n\n";
		searchID(SIZE,ID,idFound,totalScore);
	}
	
	return 0;
}
void getScore(int score[], int size,long id[], int& avg)
{
	int total=0;
	for(int j=0; j<size; j++)
	{
		cout<<"Enter the total score for player "<<j+1<<", ID "<<id[j]<<": ";
		cin>>score[j];
		total=total+score[j];
	}
	avg=total/size;
}
void searchID(long id[],int size,bool& foundID,int total[])
{
	long searchPlayer;
	cout<<"Enter the ID of the player you want to search: ";
	cin>>searchPlayer;
	for(int n=0;n<size;n++)
	{
		if(searchPlayer==id[n])
		{
			foundID=true;
			cout<<"The total score of player "<<n+1<<" with ID "<<id[n]<<" is: "<<total[n]<<endl<<endl;
		}
	}
	
}

＆＃13;

＆＃13;

＆＃13;

ID和总分都是数组。对于 getScore 函数的第一个函数，它结果完全没问题，但是当我包含第二个函数时出现了错误。

Answer 1

您重新声明searchID。

首先作为一个函数，在main()之外，另一个作为main()中的局部变量。

void searchID(long[],int,bool&,int[]); // function declaration
long ..., searchID;                    // local variable declaration in main()

根据basic.scope#block-1

  

块中声明的名称是 local 到该块;它有块范围。   它的潜在范围在声明点开始并以结尾处结束   它的块结束。在块作用域中声明的变量是 local   变量

因此，searchID中最近可能的main()声明显然是局部变量声明。因此错误。

Answer 2

固定！

＆＃13;

＆＃13;

#include<iostream>
using namespace std;
void getScore(int[],int,long[],int&);
void searchID(long[],int,bool&,int[]);
int main()
{
	int SIZE;
	long ID[SIZE],winnerID;
	int score1st[SIZE],score2nd[SIZE],totalScore[SIZE], avg1st, avg2nd,count;
	
	cout<<"Enter the number of players: ";
	cin>>SIZE;
	
	for(int i=0;i<SIZE;i++)
	{
		cout<<"Enter bowler "<<i+1<<"'s ID: ";
		cin>>ID[i];
	}
	cout<<"\nFIRST ROUND SCORES: \n";
	getScore(score1st,SIZE,ID,avg1st);
	cout<<"\nSECOND ROUND SCORES: \n";
	getScore(score2nd,SIZE,ID,avg2nd);
	cout<<"\nThe player(s) who improve the scores in the second round:\n";
	for(int k=0;k<SIZE;k++)
	{
		if(score2nd[k]>score1st[k])
		{
			cout<<"Player "<<k+1<<", ID "<<ID[k]<<endl;
		}
	}
	cout<<"\nThe average score for the first round: "<<avg1st;
	cout<<"\nThe average score for the second round: "<<avg2nd;
	int highScore=totalScore[0];
	for(int m=0;m<SIZE;m++)
	{
		totalScore[m]=score1st[m]+score2nd[m];
		if(totalScore[m]>highScore)
		{
			highScore=totalScore[m];
			winnerID=ID[m];
			count=m+1;
		}
	}
	cout<<"\nThe WINNER is: Player"<<count<<", ID "<<winnerID<<" with the HIGHEST score "<<highScore<<endl<<endl;
	bool idFound=false;
	searchID(ID,SIZE,idFound,totalScore);
	while(!idFound)
	{
		cout<<"The data is not available!\n\n";
		searchID(ID,SIZE,idFound,totalScore);
	}
	
	return 0;
}
void getScore(int score[], int size,long id[], int& avg)
{
	int total=0;
	for(int j=0; j<size; j++)
	{
		cout<<"Enter the total score for player "<<j+1<<", ID "<<id[j]<<": ";
		cin>>score[j];
		total=total+score[j];
	}
	avg=total/size;
}
void searchID(long id[],int size,bool& foundID,int total[])
{
	long searchPlayer;
	cout<<"Enter the ID of the player you want to search: ";
	cin>>searchPlayer;
	for(int n=0;n<size;n++)
	{
		if(searchPlayer==id[n])
		{
			foundID=true;
			cout<<"The total score of player "<<n+1<<" with ID "<<id[n]<<" is: "<<total[n]<<endl<<endl;
		}
	}
	
}

＆＃13;

＆＃13;

＆＃13;