Showing posts with label divisionof two numbers using bitwise operators. Show all posts
Showing posts with label divisionof two numbers using bitwise operators. Show all posts

20120718

Bitwise operation for division

// Bitwise operation for division

int main(void) {
int L, leftShift, i, changeMask;

leftShift = 0; /* added or subtracted value will be 2^leftShift */
i = 25; /* value we are adding to or subtracting from */
changeMask = 1 << leftShift;

for (L = leftShift; L < INT_BIT; L++) {
i ^= changeMask;
if ( /* ! */ (i & changeMask)) { /* comment in or out "!" for
addition or subtraction */
break;
}
changeMask <<= 1;
}

printf("%i", i);

return 0;
}

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