Problem reading float with scanf

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2 total messages Started by Luis Barriga Fri, 16 Feb 1990 18:03

#904

Author: Luis Barriga
Date: Fri, 16 Feb 1990 18:03

28 lines
1442 bytes

Here is a problem discovered by a student.

++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
#include <stdio.h>
 float h;
main()
{
  printf(" give step: ");
  scanf("%f",&h);
}
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

It loggs you out while readind a number starting with zero and point, i.e
"0.". All other numbers like .73737 .6464 123.45 1.2233 5.666 etc. are
read OK. Has anybody had this problem? 

P.S. I've tested this same program on a VAX and SUN and I was logged
out as well while giving a number 0.

P.P.S. I wanted to post this letter to all other concerned groups as
well but I had already sent it );-)
--
________________________________________________________________________|
   Luis Barriga			     The Royal Institute of Technology	|
				     Dep. Computer systems (TDS)	|
   e-address: luis@tds.kth.se	     S-100 44 Stockholm			|
				       SWEDEN     			|
________________________________________________________________________|

Re: Problem reading float with scanf

#907

Author: John Blommers
Date: Mon, 19 Feb 1990 22:53

5 lines
676 bytes

This should not happen.

I tried it on an hp9000 model 835.
It parses, and a debug printf showed the scanf to work.
I don't see why you'd be logged of a system because of parsing problems.

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