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implement tossBitsEnding

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This commit is contained in:
Andrew Kelley 2025-07-28 18:35:51 -07:00
parent 2d8d0dd9b0
commit f644f40702
1 changed files with 15 additions and 3 deletions
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18
lib/std/compress/flate/Decompress.zig
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@ -491,9 +491,21 @@ fn tossBits(d: *Decompress, n: u6) !void {
}
fn tossBitsEnding(d: *Decompress, n: u6) !void {
_ = d;
_ = n;
@panic("TODO");
const remaining_bits = d.remaining_bits;
const in = d.input;
var remaining_needed_bits = n - remaining_bits;
while (remaining_needed_bits >= 8) {
try in.discardAll(1);
remaining_needed_bits -= 8;
}
if (remaining_needed_bits == 0) {
d.next_bits = 0;
d.remaining_bits = 0;
} else {
const byte = try in.takeByte();
d.next_bits = @as(usize, byte) >> remaining_needed_bits;
d.remaining_bits = @intCast(8 - remaining_needed_bits);
}
}
fn takeBitsRuntime(d: *Decompress, n: u4) !u16 {