C++ Error: ISO C++ Forbids Comparison Between Pointer and Integer [-fpermissive]
I am a beginner C++ Programmer With Very little knowledge about C++. I Have Been Creating a Program on The IDE and Compiler: Dev-C++ 5.6.3. I have run into this error: ISO C++ Forbids Comparison Between Pointer and Integer [-fpermissive]. I don't know what it means but I will put the whole code here:
#include <iostream>
#include <stdio.h>
#include <cstdlib>
#include <conio.h>
using namespace std;
// This is the Cleaner and Updated version of the test program.
int main(int argc, char** argv) {
Introduction: //Introduction to The Program and Little Information About it.
cout << "________________________________________________________________________________" << endl;
cout << " Introduction " << endl;
cout << "________________________________________________________________________________" << endl;
cout << "Welcome to Ryan's C++ Program" << endl;
cout << "This Program is in Beta and is Glitchy" << endl;
cout << "Press Any Key to Continue..." << endl;
getch();
goto Lobby;
Lobby: //Main Place, Here you can go to multiple sections in the program that repersent diffrent functions.
system("CLS");
int choice;
cout << "________________________________________________________________________________" << endl;
cout << " Lobby " << endl;
cout << "________________________________________________________________________________" << endl;
cout << "Please Enter the Corisponding Number to The Section You Want to Go to." << endl;
cout << "1. Information (About Program)" << endl;
cout << "2. Calculator" << endl;
cout << "3. Games" << endl;
cout << "4. Programs (To Open)" << endl;
cout << "5. Shutdown Options (To Computer)" << endl;
cout << "6. Help" << endl;
cout << "7. About Me" << endl;
cout << "8. Test" << endl;
cout << "9. Exit Program" << endl;
cout << "10. Update News" << endl;
cout << "Input Number:";
scanf ("%d", &choice);
if (choice == 1) goto Information;
if (choice == 2) goto Calculator;
if (choice == 3) goto Games;
if (choice == 4) goto Programs;
if (choice == 5) goto Shutdown;
Information: //Information About The Program
system("CLS");
cout << "________________________________________________________________________________" << endl;
cout << " Information " << endl;
cout << "________________________________________________________________________________" << endl;
cout << "This is Information about The Program:" << endl;
cout << "This Program is a C++ Console Program Using a Source Code Made by Ryan Park." << endl;
cout << "This Program Was Made using the IDE and Compiler DEV-C++ Version 5.6.3." << endl;
cout << "This Program is in Beta 1.0.0 and Might be Glitchy." << endl;
cout << "To See the Contents of Every New Update, Go To: Update News Section." << endl;
cout << "Press Any Key to Go Back to Lobby...." << endl;
getch();
system("CLS");
cout << "Going Back to Lobby..." << endl;
cout << "Press Any Key to Continue...." << endl;
getch();
goto Lobby;
Error: //Programs Emergency Error System.
system("CLS");
cout << "Error Detected, Shutting Down Program..." << endl;
cout << "Press Any Key to Continue....";
getch();
return 0;
Calculator: //Calculator With 4 Functions
int num1;
system("CLS");
cout << "________________________________________________________________________________" << endl;
cout << " Calculator " << endl;
cout << "________________________________________________________________________________" << endl;
cout << "Welcome to Calculator!" << endl;
cout << "To Begin, Please Select the Type of Operation You Want to Perform" << endl;
cout << "1. Addition" << endl;
cout << "2. Subtraction" << endl;
cout << "3. Multiplication" << endl;
cout << "4. Division" << endl;
cout << "Input Number:";
scanf ("%d", &num1);
if (num1 == 1) goto Addition;
if (num1 == 2) goto Subtraction;
if (num1 == 3) goto Multiplication;
if (num1 == 4) goto Division;
else goto Error;
Addition: //Part of Calculator
int num2;
int num3;
int sum;
int input;
system("CLS");
cout << "________________________________________________________________________________" << endl;
cout << " Addition " << endl;
cout << "________________________________________________________________________________" << endl;
cout << "Welcome to Addition!" << endl;
cout << "1st Number:";
scanf ("%d", &num2);
cout << "2nd Number:";
scanf ("%d", &num3);
sum = num2 + num3;
printf ("\nThe Answer is: %d", sum);
cout << "\nPress Any Key to Continue....";
getch();
system ("CLS");
cout << "1. Go Back to Lobby" << endl;
cout << "2. Go Back to Calculator" << endl;
cout << "3. Make Another Addition Equation" << endl;
cout << "Input Number:";
scanf ("%d", &input);
if (input == 1) goto Lobby;
if (input == 2) goto Calculator;
if (input == 3) goto Addition;
else goto Error;
Subtraction: //Part of Calculator
int num4;
int num5;
int diffrence;
int input1;
system("CLS");
cout << "________________________________________________________________________________" << endl;
cout << " Subtraction " << endl;
cout << "________________________________________________________________________________" << endl;
cout << "Welcome to Subtraction" << endl;
cout << "1st Number:";
scanf ("%d", &num4);
cout << "2nd Number:";
scanf ("%d", &num5);
diffrence = num4 - num5;
printf ("\nThe Answer is: %d", diffrence);
cout << "\nPress Any Key to Continue...." ;
getch();
system("CLS");
cout << "1. Go Back to Lobby" << endl;
cout << "2. Go Back to Calculator" << endl;
cout << "3. Make Another Subtraction Operation" << endl;
cout << "Input Number:";
scanf ("%d", &input1);
if (input1 == 1) goto Lobby;
if (input1 == 2) goto Calculator;
if (input1 == 3) goto Subtraction;
else goto Error;
Multiplication: //Part of Calculator
int num6;
int num7;
int answer;
int choice2;
system("CLS");
cout << "________________________________________________________________________________" << endl;
cout << " Multiplication " << endl;
cout << "________________________________________________________________________________" << endl;
cout << "Welcome to Multiplication" << endl;
cout << "1st Number:";
scanf ("%d", &num6);
cout << "2nd Number:";
scanf ("%d", &num7);
answer = num6 * num7;
printf ("\nThe Answer is: %d", answer);
cout << "\nPress Any Key to Continue....";
getch();
system("CLS");
cout << "1. Go Back to Lobby" << endl;
cout << "2. Go Back to Calculator" << endl;
cout << "3. Make Another Multiplication Equation" << endl;
cout << "Input Number:";
scanf ("%d", choice2);
if (choice2 == 1) goto Lobby;
if (choice2 == 2) goto Calculator;
if (choice2 == 3) goto Multiplication;
else goto Error;
Division: //Part of Calculator
int num8;
int num9;
int quotient;
int choice3;
system("CLS");
cout << "________________________________________________________________________________" << endl;
cout << " Division " << endl;
cout << "________________________________________________________________________________" << endl;
cout << "Welcome to Division" << endl;
cout << "1st Number:";
scanf ("%d", &num8);
cout << "2nd Number:";
scanf ("%d", &num9);
quotient = num8 / num9 ;
printf("\nThe Answer is: %d", quotient);
cout << "\nPress Any Key to Continue....";
getch();
system("CLS");
cout << "1. Go Back to Lobby" << endl;
cout << "2. Go Back to Calculator" << endl;
cout << "3. Make Another Division Equation" << endl;
cout << "Input Number:";
scanf ("%d", choice3);
if (choice3 == 1) goto Lobby;
if (choice3 == 2) goto Calculator;
if (choice3 == 3) goto Division;
else goto Error;
Games: //Games Section. You Can play Games Here, Or Open Some. (NOT FINISHED/NOT STARTED)
system("CLS");
cout << "________________________________________________________________________________" << endl;
cout << " Games " << endl;
cout << "________________________________________________________________________________" << endl;
cout << "Welcome to Games" << endl;
cout << "I Have not Started this Section Yet, But check here in the next update!" << endl;
cout << "Current Version: BETA 1.0.0" << endl;
cout << "Press Any Key to Continue...." << endl;
getch();
cout << "Going Back to Lobby..." << endl;
cout << "Press Any Key to Continue...." << endl;
getch();
goto Lobby;
Programs: //Programs, To Open Programs on Your Computer
system("CLS");
cout << "________________________________________________________________________________" << endl;
cout << " Programs " << endl;
cout << "________________________________________________________________________________" << endl;
cout << "Welcome to Programs" << endl;
cout << "I have not Started this Section Yet, But check here in the next update!" << endl;
cout << "Current Version: BETA 1.0.0" << endl;
cout << "Press Any Key to Continue...." << endl;
getch();
cout << "Going Back to Lobby..." << endl;
cout << "Press Any Key to Continue...." << endl;
getch();
goto Lobby;
Shutdown: //Shutdown, To Shutdown, Restart and Log Off Computer.
int input3;
system("CLS");
cout << "________________________________________________________________________________" << endl;
cout << " Shutdown " << endl;
cout << "________________________________________________________________________________" << endl;
cout << "Welcome to the Shutdown Section" << endl;
cout << "Which Operation Would you Like to Operate?" << endl;
cout << "1. Shutdown" << endl;
cout << "2. Restart" << endl;
cout << "3. Log Off" << endl;
cout << "4. Go Back to Lobby";
cout << "Input Number:" << endl;
scanf ("%d",&input3);
if (input3 == 1) goto Shut;
if (input3 == 2) goto Restart;
if (input3 == 3) goto Log;
if (input3 == 4) goto Lobby;
else goto Error;
Shut:
char inputy;
system("CLS");
cout << "________________________________________________________________________________" << endl;
cout << " Shutdown " << endl;
cout << "________________________________________________________________________________" << endl;
cout << "Welcome to Shutdown" << endl;
cout << "This Program Will Now Shutdown your Computer, Make Sure to Close and Save Your Files." << endl;
cout << "Press Any Key to Continue...." << endl;
getch();
cout << "THIS WILL SHUTDOWN YOUR COMPUTER, ARE YOU SURE YOU WANT TO DO THIS?" << endl;
cout << "(Y/N):";
scanf ("%c", &inputy);
if (inputy == "Y") goto Shut2;
if (inputy == "y") goto Shut2;
if (inputy == "n") goto Lobby;
if (inputy == "N") goto Lobby;
else goto Error;
Shut2:
cout << "Shutting Down Computer...." << endl;
cout << "Press Any Key to Continue...." << endl;
getch();
system("shutdown -s -t 10");
Restart:
int inputn;
system("CLS");
cout << "________________________________________________________________________________" << endl;
cout << " Restart " << endl;
cout << "________________________________________________________________________________" << endl;
cout << "Welcome to Restart" << endl;
cout << "This Program Will Now Restart Your Computer, Make Sure to Close and Save Your Files." << endl;
cout << "Press Any Key to Continue...." << endl;
getch();
cout << "THIS PROGRAM WILL NOW RESTART YOUR COMPUTER, ARE YOU SURE YOU WANT TO DO THIS?" << endl;
cout << "(Y/N):";
scanf ("%c", &inputn);
if (inputn == "Y") goto Re2;
if (inputn == "y") goto Re2;
if (inputn == "N") goto Lobby;
if (inputn == "n") goto Lobby;
else goto Error;
Re2:
cout << "Restarting Computer...." << endl;
cout << "Press Any Key to Continue...." << endl;
getch();
system("shutdown -r -t 10");
Log:
int inputl;
system("CLS");
cout << "________________________________________________________________________________" << endl;
cout << " Log Off " << endl;
cout << "________________________________________________________________________________" << endl;
cout << "Welcome to Log Off" << endl;
cout << "This Program Will Now Log Off Your Computer, Make Sure to Close And Save Your FIles." << endl;
cout << "Press Any Key to Continue...." << endl;
getch();
cout << "THIS PROGRAM WILL NOW LOG OFF YOUR COMPUTER, ARE YOU SURE YOU WANT TO DO THIS?" << endl;
cout << "(Y/N):";
scanf ("%c", &inputl);
if (inputl == "Y") goto Log2;
if (inputl == "y") goto Log2;
if (inputl == "N") goto Lobby;
if (inputl == "n") goto Lobby;
else goto Error;
Log2:
cout << "Logging Off Computer...." << endl;
cout << "Press Any Key to Continue...." << endl;
getch();
system("shutdown -l -t 10");
Answer
"Y", "y", "n", and "N" are C-style strings, which are null-terminated character arrays. When attempting to compare them, they degenerate to pointers to const char. On the other hand, inputy is declared as int. This is the origin of your comparison between pointer and integer errors.
To fix the issue, compare inputy against characters instead of strings: 'Y', 'y', 'n', and 'N' (note the single quotes, rather than double quotes).