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# Calculator default not working

calculator c simple calculator

Best Answer dargueta, 21 July 2014 - 12:58 PM

You have a breakpoint set there manually, probably by accident (the big blue arrow on the side). Just click on it to disable or remove it.

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4 replies to this topic

### #1 djsepstep

djsepstep

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Posted 21 July 2014 - 10:01 AM

Hi guys I am working on this simple calculator for a coding class I am working on and would greatly appreciate some help. It is working almost completely fine except for this one problem. Here is the code:

```#include <stdio.h>

int main()
{
int choice;
float number1;
float number2;
float total;
char response;

do
{

printf("\n\nWelcome to Sepehr Araghi's Handy Calculator\n\n");
printf("\t2. Subtraction\n");
printf("\t3. Multiplication\n");
printf("\t4. Division\n");
printf("\t5. Exit\n\n");

printf("\nWhat would you like to do? ");
scanf("%d", &choice);

switch (choice)
{
case 1:

while ((scanf("%f %f", &number1, &number2)) != 2)
{
while (getchar() != '\n')
continue;
printf("\nYou entered a letter, please re-enter both values: ");
}

total = number1 + number2;

printf("\nResult of adding %.2f and %.2f is %.2f\n", number1, number2, total);
break;

case 2:
printf("\nPlease enter two numbers to subtract, seperated by a space: ");

while ((scanf("%f %f", &number1, &number2)) != 2)
{
while (getchar() != '\n')
continue;
printf("\nYou entered a letter, please re-enter both values: ");
}

total = number1 - number2;

printf("\nResult of subtracting %.2f and %.2f is %.2f\n", number1, number2, total);
break;

case 3:
printf("\nPlease enter two numbers to multiply, seperated by a space: ");

while ((scanf("%f %f", &number1, &number2)) != 2)
{
while (getchar() != '\n')
continue;
printf("\nYou entered a letter, please re-enter both values: ");
}

total = number1 * number2;

printf("\nResult of multiplying %.2f and %.2f is %.2f\n", number1, number2, total);
break;

case 4:

printf("\nPlease enter two numbers to divide, seperated by a space: ");

do
{
while ((scanf("%f %f", &number1, &number2)) != 2)
{
while (getchar() != '\n')
continue;
printf("\nThat is not a valid choice, please re-enter both numbers: ");
}
if (number2 == 0)
{
printf("\nYou can’t divide by zero, please re-enter both numbers: ");
}
} while (number2 == 0);

total = number1/number2;
printf("\nResult of dividing %.2f and %.2f is %.2f\n", number1, number2, total);

break;

case 5:
printf("\nThank you for using Sepehr Araghi's Handy Calculator.\n\n");
break;

default:  printf("Invalid selection choice!\n");
}

printf("\nWould you like to continue (y/n)? ");

scanf("%c", &response);

if(response == 'n' || response == 'N');

}
while (choice != 5 && choice != getchar());
{
printf("\nPlease select a numeric value from the main menu or else select 5 to quit\n");
}
printf("\n\n");
return 0;
}
```

The issue I am having is that when I run it and put in a letter or a number that isn't one of the options in the menu, it stops the program and says that the default is the problem,  but I am not sure what is wrong with it exactly... Any help is greatly appreciated thanks! Also I am coding with xcode if that of any relevance.

### #2 dargueta

dargueta

I chown trolls.

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• 4854 posts

Posted 21 July 2014 - 12:30 PM

Put a continue after the printf in your default statement.

Never mind, ignore that. What do you mean by "the default is the problem?"

Edited by dargueta, 21 July 2014 - 12:31 PM.

sudo rm -rf / && echo \$'Sanitize your inputs!'

### #3 djsepstep

djsepstep

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Posted 21 July 2014 - 12:44 PM

When I run the program and the menu comes up to select an option, I put in a letter or value that isnt supposed to be part of the menu, and it should ask the user to re-input a new selection. When I do that however, it highlights the default in the switch code and stops the program. Here is a picture of it I hope this helps a bit. I tried to change it a bit but to no avail

Edited by sepsep96, 21 July 2014 - 12:48 PM.

### #4 dargueta

dargueta

I chown trolls.

• Moderator
• 4854 posts

Posted 21 July 2014 - 12:58 PM   Best Answer

You have a breakpoint set there manually, probably by accident (the big blue arrow on the side). Just click on it to disable or remove it.

sudo rm -rf / && echo \$'Sanitize your inputs!'

### #5 djsepstep

djsepstep

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• New Member
• 4 posts

Posted 21 July 2014 - 01:03 PM

That was it! Thanks so much for the help!

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