bitwise operations

[spectrem12]

Does anyone have any recommendations of a PDF or article for technical interview questions for c++ bitwise operations? I know its specific, but I am looking to study up on low level c++ programming.

Any help is appreciated.

[Turbine]

The tutorial on this site briefly goes through them. It might be easier with just examples.

Quite neat things to work with, they also help you in electronics and Minecraft. ;)

1 == true
0 == false

| or - at least one or the other true
10010010
01010101
-------------
10010111

& and - both must be true
10010010
01010101
-------------
00010000

>> shift right - shunt all digits right
10000000
>> 3
-------------
00010000

<< shift left
00000100
<< 3
-------------
00100000

^ xor - one or the other, but not both
10010110
01010101
-------------
11000011

~ not - opposite truth values
11000011
-------------
00111100

[spectrem12]

Thanks for the help, but I was looking for things a little more complicated

EX:
#include<stdio.h>

#include<stdio.h>

int main()
{
    unsigned int num;
    int i;
    scanf("%u", &num);
    for(i=0; i&lt16; i++)
    {
        printf("%d", (num<<i & 1<<15)?1:0);
    }
    return 0;
}

What is the output of the code

[Turbine]

Work it out yourself. ;) Same principles apply.

[spectrem12]

lol. I know the answer. I was looking for more examples similar to it.

[bartoli]

Some bitwise operations :
http://graphics.stanford.edu/~seander/bithacks.html