Re: Problem with cin

[Ramkumar Iyer <ramkumar.iyer@xxxxxxxxx>]

i figured out something to do cin getting into a bad state
better is to read the line of input & do an sscanf (or use
stringstream) to get & validate the input...
surely cin is disappointing ..or again is there a better way ?


shubhendu wrote:

> hi friend !
>
> what i am writing is not a solution but discussion on y'r problem
>
> yesterday i worked with your problem and  found some things
> like
>      ones we give irrelevant value to cin  ( wrong data type )
>      its value goes to (nil) and
>      it does not let execute any cin coming
>      after thin cin insted of  cin.clear()
>      making it back to 0xffffff...
>
> what could be the reason ?
>
> enlighten me ...
>
>
> shubh
> REC-Surat
> --------------------------
>                   @>
> in love with    /( )\  linux
>                  ^ ^
> --------------------------
>
> On Mon, 22 Jan 2001, Ramkumar Iyer wrote:
>
> > Hi ,
> >       Have a look at the code.
> >  If  I give some invalid value for one integer (like
> > characters) , no values are read into both . Ideally , if
> > reading int1 fails then it should print some message and try
> > reading int2.Am I missing something?
> >
> > #include <iostream.h>
> > main()
> > {
> >   int int1=0;
> >   int int2=0;
> >   cout << " Enter the int1 val : " << flush;
> >   cin >> int1;
> >   if(!cin)
> >   {
> >    cout  << endl << "Error reading int1" << endl << flush;
> >    cin.clear();
> >   }
> >
> >   cout << " Enter the int2 val : " << flush;
> >   cin >> int2;
> >
> >   if(!cin)
> >   {
> >     cout  << endl << "Error reading int2" << endl << flush;
> >     cin.clear();
> >   }
> >
> >   cout << endl << " " << int1 << " " << int2 << flush;
> > }
> >
> >
> >
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>
> ---------------------------------------------
> LIP is all for free speech.  But it was created
> for a purpose.  Violations of the rules of
> this list will result in stern action.