Can anyone help me with this c program?

void main()


{


unsigned i=1;


signed j=-1;


if(i%26lt;j)


printf("less");


else


if(i%26gt;j)


printf("greater");


else


if(i==j)


printf("equal");


}








o/p is less





can anyone help me how this works?

Can anyone help me with this c program?
Indeed.





To those of you who didn't bother to understand the question, this program works, but says that 1 %26lt; -1, which is not right.





The problem is "signedness" - when comparing signed and unsigned integers, the C complier casts both numbers to unsigned, which turns (-1) into 4294967295 (unsigned representation of -1).





Try this to see what I'm talking about:





void main()


{


unsigned i=1;


signed j=-1;


if(i%26lt;j)


printf("less %u %26lt; %u", i, j);


else


if(i%26gt;j)


printf("greater %u %26gt; %u", i, j);


else


if(i==j)


printf("equal");


}








To avoid this ambiguity, tell the compiler explicitly how you want it to treat your numbers - as singed or unsigned, i.e.:





if ( (signed) i %26lt; (signed) j)





or





if ( (unsigned) i %26lt; (unsigned) j)
Reply:Sure,





//ur program enters the main method here...


void main()


{


//u assign 2 variables i and j


unsigned i=1;


signed j=-1;


//this asks if i is less than j which it is not so it goes to the else


if(i%26lt;j)


printf("less");


//this asks if i is greater than j which it is so it runs the code in the else block


else


if(i%26gt;j)


//this tells it to print greater


printf("greater");


else


//because the code went into the above else block it will not bother to check this if statement..


if(i==j)


printf("equal");


}
Reply:Means: if i is less than j, print less


if i is more than j, print more


if i is equal to j, print equal


If u need any more help, email me: pravin.singh71@yahoo.com





(was that your homework)
Reply:It goes something like this.....





if i is less than j, then print "Less" to the screen.


if i is more than j, then print "more" to the screen.


if they are equal, then print "equal" to the screen.





I hope I didn't just do your homework for you and no, you don't have my permission to copy and paste it, if you're gonna cheat at least type it in yourself.

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