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siphash: fix std.io.Writer API non-conformance

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Jacob Young 2025-04-22 00:23:15 -04:00 committed by Andrew Kelley
parent 650bc19ff3
commit 4004c8058e
1 changed files with 7 additions and 2 deletions
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9
lib/std/crypto/siphash.zig
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@ -252,10 +252,15 @@ fn SipHash(comptime T: type, comptime c_rounds: usize, comptime d_rounds: usize)
fn writeSplat(ctx: ?*anyopaque, data: []const []const u8, splat: usize) anyerror!usize {
const self: *Self = @alignCast(@ptrCast(ctx));
var len: usize = 0;
for (0..splat) |_| for (data) |slice| {
for (data[0 .. data.len - 1]) |slice| {
self.update(slice);
len += slice.len;
};
}
{
const slice = data[data.len - 1];
for (0..splat) |_| self.update(slice);
len += slice.len * splat;
}
return len;
}