@naveen :read the his doubt properly...he was expecting 5 10 15 but was
getting 8 32 96...and dats the correction required which i made
On Fri, Jun 8, 2012 at 8:08 AM, Navin Kumar <algorithm.i...@gmail.com>wrote:
> @Mahendra: for ur above code with t=(a<<2)+a o/p will be 5,10, 15 as i
> explained above. without bracket answer will be 8 , 32 and 96 because +
> precedence is higher than <<.
>
>
> On Fri, Jun 8, 2012 at 7:31 AM, Mahendra Sengar <sengar.m...@gmail.com>wrote:
>
>> Cracked it...i guess precedence of + is more than <<
>> so
>> use t=(a<<2)+a;
>>
>> I checked, its giving proper output now !!!
>>
>>
>> On Friday, June 8, 2012 5:46:09 AM UTC+5:30, algo lover wrote:
>>>
>>> The following is a simple C program which tries to multiply an integer
>>> by 5 using the bitwise operations. But it doesn't do so. Explain the reason
>>> for the wrong behavior of the program.
>>>
>>> #include <stdio.h>
>>> #define PrintInt(expr) printf("%s : %d\n",#expr,(expr))
>>> *int* FiveTimes(*int* a)
>>> {
>>> *int* t;
>>>
>>>
>>> t *=* a*<<*2 *+* a;
>>>
>>>
>>> *return* t;
>>> }
>>>
>>> *int* main()
>>> {
>>> *int* a *=* 1, b *=* 2,c *=* 3;
>>>
>>>
>>> PrintInt(FiveTimes(a));
>>> PrintInt(FiveTimes(b));
>>>
>>>
>>> PrintInt(FiveTimes(c));
>>> *return* 0;
>>> }
>>>
>>> --
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