Zig 0.17.0-dev (Split by item)

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peekBitsEnding

Decompress.peekBitsEnding

fn peekBitsEnding(d: *Decompress, n: u4) !u16

File

lib/std/compress/flate/Decompress.zig:535

Code

fn peekBitsEnding(d: *Decompress, n: u4) !u16 {
    @branchHint(.unlikely);

    const left = d.input.buffered();
    if (left.len * 8 - d.consumed_bits < n) return error.EndOfStream;
    const bits = std.mem.readVarInt(u32, left, .little);
    const mask = @shlExact(@as(u16, 1), n) - 1;
    return @intCast((bits >> d.consumed_bits) & mask);
}