Category:Jq/bitwise.jq: Difference between revisions

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+NEWS: 2024.04.06 - flip/1
 <syntaxhighlight lang="jq">
 module {
   "name": "bitwise",
   "description": "bit arrays, bit streams, and integers",
-  "version": "2024.04.05",
+  "version": "2024.04.06",
   "homepage": "https://rosettacode.org/w/index.php?title=Category:Jq/bitwise.jq",
   "license": "MIT",
@@ Line 47: / Line 49: @@
   end ;
-# If the input is null, then the bitwise bits of the integer $x are simply flipped;
+# If $n is null, then the bitwise bits of the input integer are simply flipped;
-# otherwise, the input integer determines the width for padding or truncation
+# otherwise, $n, which should be non-negative, determines the width for padding or truncation
-def flip($x):
+def flip($n):
-  if . == null then stream_to_integer(flipbits($x|bitwise))
+  if $n == null then stream_to_integer(flipbits(bitwise))
-  else stream_to_integer(flipbits( limit(.; $x|bitwise) ) )
+  else [limit($n; bitwise)] as $bits
+  | stream_to_integer(flipbits( $bits[], (range(0; $n - ($bits|length)) | 0)))
   end;