Re: [algogeeks] Adding Two numbers using bitwise operators only

2011-08-20 Thread sagar pareek 
Refer half adder :)

*sum = a ^ b;
carry = a  b;
while (carry != 0)
{
carry = 1;
a = sum;
b = carry;
sum = a ^ b;
carry = a  b;
}*

On Sat, Aug 20, 2011 at 9:32 PM, Sanjay Rajpal srn...@gmail.com wrote:

 Hey frnds,

 I am stuck in a problem of adding two numbers using bitwise operators only.

 An explanation is required.


 Sanju
 :)

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SAGAR PAREEK
COMPUTER SCIENCE AND ENGINEERING
NIT ALLAHABAD

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Re: [algogeeks] Adding Two numbers using bitwise operators only

2011-08-20 Thread Sanjay Rajpal 
Could you post some link here ?


Sanju
:)



On Sat, Aug 20, 2011 at 9:08 AM, sagar pareek sagarpar...@gmail.com wrote:

 Refer half adder :)

 *sum = a ^ b;
 carry = a  b;
 while (carry != 0)
 {
 carry = 1;
 a = sum;
 b = carry;
 sum = a ^ b;
 carry = a  b;
 }*

   On Sat, Aug 20, 2011 at 9:32 PM, Sanjay Rajpal srn...@gmail.com wrote:

   Hey frnds,

 I am stuck in a problem of adding two numbers using bitwise operators
 only.

 An explanation is required.


 Sanju
 :)

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 --
 **Regards
 SAGAR PAREEK
 COMPUTER SCIENCE AND ENGINEERING
 NIT ALLAHABAD

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Re: [algogeeks] Adding Two numbers using bitwise operators only

2011-08-20 Thread priya ramesh 
+1 sagar!

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Re: [algogeeks] Adding Two numbers using bitwise operators only

2011-08-20 Thread Puneet Chawla 
For subtraction we can use the same add function

int add(int a, int b)
{
while (a) {
a = (a  b)  1;
b = a^b;
}
return b;
}

int sub(int a, int b)   // add a with b's 2's
complement.
{
return (add(a, add(~b, 1)));
}


On Sat, Aug 20, 2011 at 11:34 PM, priya ramesh 
love.for.programm...@gmail.com wrote:

 +1 sagar!

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With regards
  
Puneet Chawla
Computer Engineering Student
NIT Kurukshetra

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