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vinay
 Post subject: For loop with multiple conditions (boolean expr)
PostPosted: Tue Jan 11, 2022 9:37 am 

Joined: Sat Oct 01, 2005 11:40 am
Posts: 40
Location: IIT Guwahati, Guwahati, Assam, INDIA
The following two similar codes are giving different outputs.

The following code:
Code:
for (i=1;i<=10;i++)
{
    if ((i%2)!=1)
    {
        i;
    }
}

returns the expected answer, whereas the code
Code:
for (i=1;i<=10  && (i%2)!=1;i++)
{
    i;
}

returns nothing.

Is this expected behaviour?

-- VInay


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hannes
 Post subject: Re: For loop with multiple conditions (boolean expr)
PostPosted: Thu Jan 13, 2022 2:18 pm 

Joined: Wed May 25, 2005 4:16 pm
Posts: 275
Yes, it is:
a for loop stops at that moment that the condition is not fulfilled:
this is here the case already for the start value of i: 1:
it is smaller than 10, not i%2 is not !=1: combined with &&: condition is false.
What you probably mean:
Code:
for(i=2;i<=10;i+=2)
{
  i;
}


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vinay
 Post subject: Re: For loop with multiple conditions (boolean expr)
PostPosted: Sun Jan 16, 2022 12:05 pm 

Joined: Sat Oct 01, 2005 11:40 am
Posts: 40
Location: IIT Guwahati, Guwahati, Assam, INDIA
Thank Hans, got it! Didnt think of the trick:
Code:
i+=2


-- VInay


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