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Is it possible to validate the datatype of an input?

AmberJain
884 Expert 512MB
HELLO,

If I code following in C:
Expand|Select|Wrap|Line Numbers
  1. int x;
  2. scanf("%d", &x);
  3.  
Now above code expects value input for 'x' to be of integer type. But if user enters a value of float type, is it possible to display a message (after performing a test) that the input is not of correct type?

The pseudocode for what I want to do is below:
Expand|Select|Wrap|Line Numbers
  1. if(value_input_for_x == float type)
  2. printf("Input type must be an integer!");
  3.  
If possible, what is C code equivalent to pseudocode above?

THANKS in advance..............
Aug 12 '08 #1
1 1475
Savage
1,764 Expert 1GB
In case of error scanf returns 0,but I think if you try to scan in a float into a integer variable that it would automatically rounded to an integer.If you really want to determine whether input was really an integer you'll have to do it all by yourself.
(Reading in unformatted data and parsing it)
Aug 12 '08 #2

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