On Tuesday, 24 March 2015 at 16:35:04 UTC, Ivan Kazmenko wrote:
What exactly is not working?
Everything works. I'm just a little forgotten properties of the
operation xor.
I just wanted to xor 1 each digit in the number of type BigInt,
while I would like to store each number in the binary
representation of the array BigInt.
The only thing I see lacking is an ability to print a BigInt in
binary via writefln("%b").
Yes. It would be nice.
Up to 64 bits, arithmetic and bitwise operations, including
xor, are available with long and ulong. Just print the result
as binary:
-----
import std.stdio;
void main() {
ulong n = ulong.max - 0b1000101;
writeln (n);
writefln ("%b", n);
writefln ("%b", n ^ 1);
}
-----
Output:
-----
18446744073709551546
1111111111111111111111111111111111111111111111111111111110111010
1111111111111111111111111111111111111111111111111111111110111011
-----
If you need more than 64 bits, take a look at BitArray here, it
also has xor defined:
http://dlang.org/phobos/std_bitmanip.html#.BitArray
Thanks.
In the future, please explain what problem you are trying to
solve, as the wrong code alone often leaves one guessing.
OK, I will try.
