applying a bit vector for mask

Question

I want to do a simple bit mask operation. Lets say

uint64_t a = 348659235483;

Assuming this number is converted to binary, I want to extract the values from bit 6 to 12 (0 is MSB on the right end). What is the smallest code for that?

the binary is

10100010010110110110101101/110101/0011011

So I want to save 110101 which is 53

It depends on what you want to do with them. – Mysticial Nov 19 '12 at 09:36 — Mysticial, Nov 19 '12 at 09:36
I want to save the number from position 6 to 12 – mahmood Nov 19 '12 at 09:37 — mahmood, Nov 19 '12 at 09:37

Some programmer dude · Accepted Answer · 2012-11-19T10:05:55.307

4

How about

uint64_t a = 348659235483;
uint64_t result = (a & 0x0fe0) >> 6;

edited Nov 19 '12 at 10:05

answered Nov 19 '12 at 09:38

Some programmer dude

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applying a bit vector for mask

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