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This is an example of documentation generated by ZigDoc, an alternative to Zig's built-in Auto Doc feature. See also examples in other modes/formats. The project being documented here (as the example) is the Zig standard library. Private Function

decodeFse

Doc Source

Private Function

std.compress.zstd.Decompress.LiteralsSection.HuffmanTree.decodeFse

fn decodeFse(
            in: *Reader,
            remaining: *Limit,
            compressed_size: usize,
        ) HuffmanTree.DecodeError!HuffmanTree

Params

in: *Reader
remaining: *Limit
compressed_size: usize

File

compress/zstd/Decompress.zig:1135

        fn decodeFse(
            in: *Reader,
            remaining: *Limit,
            compressed_size: usize,
        ) HuffmanTree.DecodeError!HuffmanTree {
            var weights: [256]u4 = undefined;
            remaining.* = remaining.subtract(compressed_size) orelse return error.EndOfStream;
            const compressed_buffer = try in.take(compressed_size);
            var bit_reader: BitReader = .{ .bytes = compressed_buffer };
            var entries: [1 << 6]Table.Fse = undefined;
            const table_size = try Table.decode(&bit_reader, 256, 6, &entries);
            const accuracy_log = std.math.log2_int_ceil(usize, table_size);
            const remaining_buffer = bit_reader.bytes[bit_reader.index..];
            const symbol_count = try assignWeights(remaining_buffer, accuracy_log, &entries, &weights);
            return build(&weights, symbol_count);
        }