Question

C++: Need help debugging my code

I am writing this and using some other examples as reference code while rewriting it with my own understanding of the material but am having trouble making it finally compile. Below is a picture of the error messages.

//main.cpp
//Semester Project
//Created by J---on 5/6/2019

#include <iostream>
#include <fstream>
#include <string>
#include <sstream>
#include <bits/stdc++.h>

using namespace std;

void instructions(); //displays program details and instructions
void openFile();
void takeInput(int*);
void switchBoard(int*);

struct price
{
int day, month, year;
float cost;
};

bool compareLow(price a, price b)
{
return a.cost < b.cost;
}
bool compareHigh(price a, price b)
{
return a.cost > b.cost;
}

int main()
{
int input;
instructions(); //display instructions & menu
takeInput(&input); //selection from menu on what to process
switchBoard(&input);//uses a switch-case to call the respective function
  
  
  
  
  
return 0;
}

void instructions()
{
cout << "|Semester Project\n";
cout << "|This program takes the .txt file 'GasPrices.txt' and\n";
cout << "|sorts lists the following based on user input:\n";
cout << "|\t1) Average Price Per Year\n";
cout << "|\t2) Average Price Per Month\n";
cout << "|\t3) Data from high to low\n";
cout << "|\t4) Data from low to high\n";
cout << endl;
}

void takeInput(int* input)
{
  
do //simple error catching loop
{
if(*input > 5)
{
cout << "|ERROR -> Improper input\n";
}
cout << "|Enter the number for the respective process or 5 to exit\n";
cout << "|Menu Number:\t";
cin >> *input;
cout << endl;
  
}while(*input > 5);
}

void switchBoard(int* input)
{
price data[1000];
int i=0, j, year, cnt, month;
float avg, min, max;
string temp, temp_day, temp_month, temp_year, temp_price;
cout << "|Opening File...\n";
ifstream file("GasPrices.txt");
if(!file.is_open())
{
cout << "\t|ERROR -> File not found\n";
cout << "\t|Closing Program...\n";
exit(EXIT_FAILURE);
}
while(!file.eof()) // reading from the file
{
file>>temp;
temp_month=temp.substr(0,2);
temp_day=temp.substr(3,2);
temp_year=temp.substr(6,4);
temp_price=temp.substr(11,temp.size()-10);

stringstream geek1(temp_day);
stringstream geek2(temp_month);
stringstream geek3(temp_year);
stringstream geek4(temp_price);

geek1>>data[i].day;
geek2>>data[i].month;
geek3>>data[i].year;
geek4>>data[i].cost;

i++;
}
  
  
switch(*input)
{
case 1:
for(year=1993;year<1995;year++)
{
cnt=0;
avg=0;
max=data[0].cost;
min=data[0].cost;
for(j=0;j<i;j++)
{
if(data[j].year==year)
{
avg+=data[j].cost;
cnt++;
}
if(data[j].cost<min)
min=data[j].cost;

if(data[j].cost>max)
max=data[j].cost;
}
cout<<"Year: "<<year<<" Average Price: "<<avg/cnt<<endl;

cout<<"Highest price: "<<max<<" Lowest price: "<<min<<endl;
cout<<endl;
}

cout<<endl;
break;
  
case 2:
for(year=1993;year<1995;year++)
{
for(month=1;month<13;month++)
{
cnt=0;
avg=0;
for(j=0;j<i;j++)
{
if(data[j].year==year && data[j].month==month)
{
avg+=data[j].cost;
cnt++;
}
}
cout<<"Year: "<<year<<" Month : "<<month<<" Average Price: "<<avg/cnt<<endl;
}
}
break;
case 3:
sort(data,data+i,compareLow);
ofstream file2("High-Low.txt");
for(j=0;j<i;j++)
{
file2<<data[j].month<<"-"<<data[j].day<<"-"<<data[j].year<<":"<<data[j].cost<<endl;
}
file2.close();
break;
case 4:
sort(data,data+i,compareHigh);
ofstream file1("Low-High.txt");
for(j=0;j<i;j++)
{
file1<<data[j].month<<"-"<<data[j].day<<"-"<<data[j].year<<":"<<data[j].cost<<endl;
}
file1.close();
break;
case 5:
cout << "|Closing Program...";
exit(EXIT_FAILURE);
}
}

This is my error message:

main.cpp: In function 'void switchBoard (int*) main.cpp:174:14: error: jump to case label [-fpermissive] case 4: main cpp:167:27: note: crosses initialization of 'std::ofstream file2" ofstream file2("High-Low.txt"); main.cpp:183:14: error: jump to case label [-fpermissive] case 5: main cpp:176:26: note: crosses initialization of 'std::ofstream file1 ofstream file1("Low-High.txt"); main cpp:167:27: note: crosses initialization of 'std::ofstream file2" ofstream file2("High-Low.txt");

Answer 1

ofstream file2("High-Low.txt");

ofstream file1("Low-High.txt");

Declare the above two statements outside switch - case, in side the function beginning.

If you will declare any object inside the case it will show the error message jump to case label.

Because declaring an object will call the constructor of the class which will jump from the case constant.