Thread: getting an error ???

Originally Posted by matsp

Code:

scanf("%d",&aperture);

This should be %f, not %d.

And you should relly add an f on the end of all your numbers comparing the aperture (and you will need to add a .0 to the ones that don't have a . in them, as for example 4f isn't a valid float, 4.0f is.

--
Mats

But if ((aperture==1.2f. . . ) doesn't work

Originally Posted by matsp

In what sense does it not work. It works on my machine.

--
Mats

It won't compile for me , it gives me an error.

Originally Posted by matsp

Which error?

--
Mats

Lexican Error

Originally Posted by QuantumPete

I've never heard of a compiler giving a "lexican" error. When we ask you to post the error, it's not to make you look stupid, but because it tells us exactly where the error is and more importantly *what* the error is.
So, copy and paste please!

QuantumPete

Yeh no problem Pete . Thats what it gave me , lemme try it again ...
wow it worked now . This is crazy :-|

Originally Posted by matsp

Unless you have changed it just this moment, the scanf() still needs to be %f, not %d. If you scanf with %d and enter 1.2 (or anything else with a . in it), scanf will get stuck on the . in the input, and since you have no code to consume the remaining input, you get an infinite loop.

I did suggest to use fgets() and sscanf(), rather than scanf(), because it avoids many of the problems of "garbage in the input causes strange problems".

--
Mats

I have to use scanf , its one of the requirements from my lecturer

Wohoo , it sort of worked

Code:

C:\Users\Ben\dm\bin>test3

Enter Exposure Time: 12
The selected Exposure time is 12
Please enter the aperture size 1.4
Invalid aperture=1610612736
Please Try Again
Please enter the aperture size 12
You have entered a correct value

Originally Posted by matsp

If you don't immediately remove those goto's, I'm not going to help you further. goto's are NOT the way to solve the problem.

Also, post the if-statement that gives your error (with the f's).

--
Mats

I was just trying it with gotos , in case its the while loop thats causing the problem . , but it seems to be fine