hare

commit 9bbdedd642aca60e071dc60572a83b0b19f7cf9a
parent 100592f84465faf5590add0417cd77c000b59be7
Author: Drew DeVault <sir@cmpwn.com>
Date:   Mon, 22 Feb 2021 15:45:08 -0500

slice::reverse: xor swap not actually useful here

Diffstat:
M
slice/reverse.ha
 | 
7
+++----

1 file changed, 3 insertions(+), 4 deletions(-)
diff --git a/slice/reverse.ha b/slice/reverse.ha
@@ -6,10 +6,9 @@ export fn reverse(b: []void, membsz: size) void = {
 	let a = b: *[*]u8;
 	for (let s = 0z, e = len(b) - 1; s < e) {
 		for (let i = 0z; i < membsz; i += 1z) {
-			// XOR swap
-			a[s * membsz + i] ^= a[e * membsz + i];
-			a[e * membsz + i] ^= a[s * membsz + i];
-			a[s * membsz + i] ^= a[e * membsz + i];
+			let z = a[s * membsz + i];
+			a[s * membsz + i] = a[e * membsz + i];
+			a[e * membsz + i] = z;
 		};
 		s += 1;
 		e -= 1;