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Ingy döt Net 2023-07-01 11:58:00 -04:00
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Task/Bitwise-operations/Ecstasy/bitwise-operations.ecstasy Normal file
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module BitwiseOps {
@Inject Console console;
void run() {
for ((Int64 n1, Int64 n2) : [0=7, 1=5, 42=2, 0x123456789ABCDEF=0xFF]) { // <- test data
static String hex(Int64 n) { // <- this is a locally scoped helper function
// formats the integer as a hex string, but drops the leading '0' bytes
return n.toByteArray() [(n.leadingZeroCount / 8).minOf(7) ..< 8].toString();
}
console.print($|For values {n1} ({hex(n1)}) and {n2} ({hex(n2)}):
| {hex(n1)} AND {hex(n2)} = {hex(n1 & n2)}
| {hex(n1)} OR {hex(n2)} = {hex(n1 | n2)}
| {hex(n1)} XOR {hex(n2)} = {hex(n1 ^ n2)}
| NOT {hex(n1)} = {hex(~n1)}
| left shift {hex(n1)} by {n2} = {hex(n1 << n2)}
| right shift {hex(n1)} by {n2} = {hex(n1 >> n2)}
| right arithmetic shift {hex(n1)} by {n2} = {hex(n1 >>> n2)}
| left rotate {hex(n1)} by {n2} = {hex(n1.rotateLeft(n2))}
| right rotate {hex(n1)} by {n2} = {hex(n1.rotateRight(n2))}
| leftmost bit of {hex(n1)} = {hex(n1.leftmostBit)}
| rightmost bit of {hex(n1)} = {hex(n1.rightmostBit)}
| leading zero count of {hex(n1)} = {n1.leadingZeroCount}
| trailing zero count of {hex(n1)} = {n1.trailingZeroCount}
| bit count (aka "population") of {hex(n1)} = {n1.bitCount}
| reversed bits of {hex(n1)} = {hex(n1.reverseBits())}
| reverse bytes of {hex(n1)} = {hex(n1.reverseBytes())}
|
);
}
}
}