Unknown Error

[edwinibon]

I can't seem to understand why my program isn't working, could someone look over it? I'm not getting any error messages when I run it so I don't know what to look for. Any help would be appreciated.

  #define _CRT_SECURE_NO_WARNINGS
#include <stdio.h>
#include <stdlib.h>
#include <math.h>

int main(void){
	double initialLoan = 0.0;
	double aprAmount = 0.0;
	double monthlyPayment = 0.0;
	int i = 0;
	double AmountOwned[] = { 0.0 };
	double AmountPaid[] = { 0.0 };
	double counter = 0.0;
	double todaysPayment = 0.0;
	double time[] = { 0.0 };
	double rate = 0.0;
	const double e = 2.71828182845905;

	printf("Enter in the total loan amount:");
	scanf("%lf", &initialLoan);
	printf("Enter in the Annual Percentage Rate (APR) % :");
	scanf("%lf", &aprAmount);
	printf("Enter in the monthly payment amount:");
	scanf("%lf", &monthlyPayment);

	AmountOwned[0] = initialLoan;
	AmountPaid[0] = 0.0;
	counter = 1; 
	rate = aprAmount / 100 * 365.242;

	for (i = 1; AmountOwned[i] <= 0; ++i){
		if (counter == 30){
			todaysPayment = monthlyPayment;
			counter = 1;
		}
		else {
			todaysPayment = 0;
			counter = counter + 1;
		}
		time[i] = i / 365.242;
		AmountOwned[i] = (AmountOwned[i - 1] * pow(e, rate)) - todaysPayment;
		AmountPaid[i] = AmountPaid[i - 1] + todaysPayment;
	}

	printf("Total loan amount = %lf", initialLoan);
	printf("Annual Percentage Rate (APR) is %%lf", aprAmount);
	printf("Monthly payment amount of $%lf.", monthlyPayment);
	printf("After %lf years: you will owe $%lf : The total payout is $%lf.", time[i], AmountOwned, AmountPaid);

	return 0;
}

[MiiNiPaa]

Is your program:
1) Not compiles
    * Is other code compiles correctly, i. e. is your compiler configured properly?
    * If it is, give us error message and corresponding code part.
2) Not running
    * Are you sure that it is not a problem with automatically closing console?
    * How do you run it?
    * Is there any error messages?
3) Gives an error when run
    * Is it system error message or error reported in console?
    * Give us error message and input which leads to error.
4) Not giving correct results
    * Tell what you entered, what you expected, and what you got.
    * Are you sure that results you expected are correct?

[edwinibon]

The program compiles but, the g.ex stops working when it is suppose to print out the values. When I run the debugger this is the message I get: Unhandled exception at 0x00BC1650 in g.exe: 0xC0000005: Access violation reading location 0x19B6C050.

It points to line 42.

[MiiNiPaa]

Both AmountOwned and AmountPaid contains only one value. So access to values at AmountOwned[1, AmountPaid[1] is illegal. You got lucky with AmountOwned and your program did not crash as soon as line 31, but illegal access to AmountPaid leads to crash.

[edwinibon]

Oh so how do I fix that?

[MiiNiPaa]

Rewrite statements to not use arrays at all.

[edwinibon]

Then things is that I have to use arrays.

[MiiNiPaa]

So use 1 size array instead of one variable.
Or make sure that arrays are always large enough to fit everything.

[edwinibon]

After changing the array size, I got this error:

Run-Time Check Failure #2 - Stack around the variable 'AmountOwned' was corrupted.

[edwinibon]

The only part I changed was this:

int main(void){
	double initialLoan = 0.0;
	double aprAmount = 0.0;
	double monthlyPayment = 0.0;
	int i = 1;
	int AmountOwned[12600];
	int AmountPaid[12600];
	double counter = 0.0;
	double todaysPayment = 0.0;
	int time[12600];
	double rate = 0.0;
	const double e = 2.71828182845905;

[edwinibon]

I have figured out the problem, thanks for the help!