RE: [Dev-C++] (no subject)

[James G. <Jam...@Cl...>]

You have if(type = 'Q'); <--- remove the ; as you have an empty control
statement.
 
Your missing a return before the closing } in main.
Basically if your program doesn't run into any of the if tests then it falls
out of the bottom without returning a value. (add return 0; before the last
})
 
A suggestion would be to replace the if's with switch statements.
 
i.e.
 
switch(type)
{
 case 'Q':
  ...
  break;
 case 'C':
  ...
  break;
}

Regards, 

James. 

 

-----Original Message-----
From: Frazell Thomas [mailto:fr...@fl...]
Sent: Tuesday, January 16, 2001 1:09 PM
To: Dev...@Li...
Subject: [Dev-C++] (no subject)



I'm trying to add another feature to my primitive program :O) I was trying
to add a regular calculator allowing a choice from the quadratic equation
calculator and from a regular arithmetic calculator I keep getting two
errors which I marked in the code below I'm still a beginner so I as if what
I'm trying to do even possible if not can I have a program open either one
(each in its own executable) if so how? Thanks

 

Error summary

1.       Parse error before 'else' line 69

2.       Parse error before '}' line 100

The errors are marked with a '< ----------------' in red if you can read
html mail

 

 

 

---------------------------------------------------------------------------S
ORCE CODE (Errors are marked below in color which may require HTML email to
see)------------------------------------------------------------------------
------------------------------------

#include <stdio.h>

#include <stdlib.h>

#include <math.h>

#include <windows.h>

char type;

int a,b,c;

float sroot, divide, answer_1, answer_2;

double determinent;

float calc1,calc2;

int calc3;

char typec;

int main()

{

 

      //Asks user which caculator does he/she want to start

      printf("What type of calcultor do you need? Please enter 'Q' for
Quadratric Eqations \nand 'C' for a stadered calculator: ");

      scanf("%c" ,&type);

      

      // Determines which calculator user selected and uses the one chosen

        if(type=='Q');

        {

           printf("This program is designed to do quadratic equations
only.\n");

           printf("You are free to use this software as stated under the
GNU\n");

           printf("Public License (Avalible at GNU.org).\n\n");

           printf("Version: Beta 1.4 1/3/2001 6:00AM EST.\n");

           printf("Programmer: Frazell Thomas\n");

           printf("Programmer: Hoo Hong\n");

           printf("Please visit http://www.frazellthomas.com\n\n");

 

           // Input From User

           printf("Please enter the number used to represent varible A: ");

           scanf("%d", &a);

           // if statement to prevent the divide error if the var. a is zero

           if (a == 0)

           {

              printf("\nSorry you entered 0 this will result in an error try
again.");

              printf("\nPlease enter the number used to represent varible A:
");

              printf("\nEnter 0 again to quit: ");

              scanf("%d", &a);

                 if (a==0)

                 {

                     return 0;

                 }

          }               

           printf("\nPlease enter the number used to represent varible B:
");

           scanf("%d", &b);

           printf("\nPlease enter the number used to represent varible C:
");

           scanf("%d", &c);

           determinent = (pow(b,2) - 4*a*c);

                 if (determinent < 0)

                 {

                     printf("\nSorry, The equation you entered returned no
real result.\n");

                     printf("Please re-run the program entering an equation
that will give you a real result.");

                     system("Pause");

                     return 0; 

                 }

          sroot = sqrt(determinent);

          divide = 2 * a;

          answer_1 = (-b - sroot) / divide;

          answer_2 = (-b + sroot) / divide;

      

          // Prints the answer

          printf("\nThe Answer Is %.4f and %.4f\n ", answer_1, answer_2);

      

          system("Pause");   

          return 0;

      }

          

           else if(type=='C')     < -----------------Parse error before
'else'

           {

             printf("\nPlease input the first integer: ");

             scanf("%f" ,&calc1);

             printf("\nEnter the sign ('+','-','*','/'): ");

             scanf("%c" ,&typec);

             printf("\nPlease input the second integer: ");

             scanf("%f" ,&calc2);

             if(typec=='+')

             {  

                calc3=calc1+calc2;

             }

             if(typec=='-')

             {

                calc3=calc1-calc2;

             }

             if(typec=='*')

             {

                calc3=calc1*calc2;

             }

             if(typec=='/')

             {

               calc3=calc1/calc2;

             }

         

                         //Returns Answer From Standerd Calculator To User

                         printf("\n%f %c %f = %f ",calc1,typec,calc2,calc3);

                         system("PAUSE");

                         return 0;

           }

      

}          < ------------------Parse error before '}'



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