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std.compress.zstandard: remove unneeded branch

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dweiller 2023-02-12 16:36:13 +11:00
parent 476d2fe1fa
commit 8fd41314bd
1 changed files with 1 additions and 3 deletions
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lib/std/compress/zstandard/decode/huffman.zig
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@ -153,9 +153,7 @@ fn assignSymbols(weight_sorted_prefixed_symbols: []LiteralsSection.HuffmanTree.P
fn buildHuffmanTree(weights: *[256]u4, symbol_count: usize) error{MalformedHuffmanTree}!LiteralsSection.HuffmanTree {
var weight_power_sum_big: u32 = 0;
for (weights[0 .. symbol_count - 1]) |value| {
if (value > 0) {
weight_power_sum_big += @as(u16, 1) << (value - 1);
}
weight_power_sum_big += (@as(u16, 1) << value) >> 1;
}
if (weight_power_sum_big >= 1 << 11) return error.MalformedHuffmanTree;
const weight_power_sum = @intCast(u16, weight_power_sum_big);