Debug Error

[jlharrison]

I am having trouble with this program. It compiles, builds, and links but when I execute it I am having a problem inputing the double. Please help! MS Visual Studio 6.

	#include <stdio.h>
	#include <float.h> 
	
	int main()
	{
	int bookID, volumeOH, expectedEN;
	int costPC;
	char R, S, N, O; 

	printf ("*********************************************************\n");
	printf ("WELCOME TO THE JLH05G BOOKSTORE ORDER ESTIMATION PROGRAM!\n");
	printf ("*********************************************************\n");


	printf ("\nPlease Enter The Books Cost Per Copy: \n");
	scanf ("%d", &costPC);

	printf ("\nPlease Enter The Book ID Number: \n");
	scanf ("%d", &bookID);

	printf ("\nPlease Enter The Volume On Hand: \n");
	scanf ("%d", &volumeOH);

	printf ("\nPlease Enter The Expected Enrollment: \n");
	scanf ("%d", &expectedEN);

	

	return 0;
	}

[jlharrison]

	
        #include <stdio.h>
	#include <float.h> 
	
	int main()
	{
	int bookID, volumeOH, expectedEN;
	int costPC;
	char R, S, N, O; 

	printf ("*********************************************************\n");
	printf ("WELCOME TO THE JLH05G BOOKSTORE ORDER ESTIMATION PROGRAM!\n");
	printf ("*********************************************************\n");



	printf ("\nPlease Enter The Book ID Number: \n");
	scanf ("%d", &bookID);
        
	printf ("\nPlease Enter The Books Cost Per Copy: \n");
	scanf ("%lf", &costPC);

	printf ("\nPlease Enter The Volume On Hand: \n");
	scanf ("%d", &volumeOH);

	printf ("\nPlease Enter The Expected Enrollment: \n");
	scanf ("%d", &expectedEN);

	

	return 0;
	}

This is the code I was talking about. I accidently posted one version I had been troubleshooting with.

[Dave_Sinkula]

int costPC;

scanf ("%lf", &costPC);

Match the format specifier with the data type (or vice-versa).

[jlharrison]

I was really tired when I posted, this is the code that I am having problems with...

 
        #include <stdio.h>
	#include <float.h> 
	
	int main()
	{
	int bookID, volumeOH, expectedEN;
	double costPC;
	char R, S, N, O; 

	printf ("**************************************************  *******\n");
	printf ("WELCOME TO THE JLH05G BOOKSTORE ORDER ESTIMATION PROGRAM!\n");
	printf ("**************************************************  *******\n");



	printf ("\nPlease Enter The Book ID Number: \n");
	scanf ("%d", &bookID);
        
	printf ("\nPlease Enter The Books Cost Per Copy: \n");
	scanf ("%lf", &costPC);

	printf ("\nPlease Enter The Volume On Hand: \n");
	scanf ("%d", &volumeOH);

	printf ("\nPlease Enter The Expected Enrollment: \n");
	scanf ("%d", &expectedEN);

	

	return 0;
	}

I had the doulble declared right and accidently posted the version I had been experimenting where I switched to an int for testing. Everything looks right in syntax, there are no errors. The problem is when I enter the double costPC the program crashes and if I ignore it says "runtime error 6002 floating point not loaded" on the execution screen.

[Dave_Sinkula]

https://cboard.cprogramming.com/showthread.php?p=322171

[jlharrison]

Thanks alot Dave.

I added this to the code and everything seems fine.

double costPC = 0

Apparanly initializing the variable to 0 makes everything good. Any idea why it works now?

Thanks again

Justin

[filker0]

Any idea why it works now?

My guess would be that the initialization of the double variable is somehow causing the compiler to notice that you're doing floating point calculations, thus causing floating point support to be linked in.