Thread: Undeclared identifier uppur, please help me!

Hello,

Do you know what is wrong with this?

Code:

/* print fahr-celc table for fahr = 0, 10, 20, ..., 100 */


int main (void)
{
int celc, fahr;
int lower, upper, step;


lower = 0;        /* lower limit of temperature scale */
upper = 100;    /* upper limit */
step = 10;        /* step size */


fahr = lower;
while (fahr <= uppur);    
    {
    celc = 5*(fahr-32)/9;
    printf("%d\t%d\n", fahr, celc);
    fahr = fahr + step;
    }
}

When I press execute, pelles c says:
Building main.obj.
D:\Documenten\Mijn_documenten\c programma's van mij\derde project\main.c(37): error #2048: Undeclared identifier 'uppur'.
*** Error code: 1 ***
Done.

I don't know what is wrong with this.

Please help me.

Check your spelling. Where do you define a variable with the name uppur?

Jim

Check your spelling:

Code:

int lower, upper, step;

// ...

while (fahr <= uppur);

When you fix this and see that the program appears to do nothing, think about whether or not you really want that semi-colon at the end of your "while()".

Also the following will probably not produce your desired results:

Code:

celc = 5*(fahr-32)/9;

You are using integer math, there are no fractions in integer math. So something like 1/2 will yield zero, with the fractional part discarded.

Jim