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@ -22,6 +22,7 @@ template<const char *data, auto data_length = std::char_traits<char>::length(dat
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class huffman_compress
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{
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using size_t = long int;
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using usize_t = decltype(data_length);
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// Note: class internals need to be defined before the public interface.
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private:
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@ -46,7 +47,7 @@ private:
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auto list = std::span(new node[256] {}, 256);
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for (int i = 0; i < 256; i++)
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list[i].value = i;
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for (size_t i = 0; i < data_length; i++)
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for (usize_t i = 0; i < data_length; i++)
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list[data[i]].freq++;
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std::sort(list.begin(), list.end(),
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@ -141,7 +142,7 @@ private:
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auto tree = build_node_tree();
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size_t bytes = 1, bits = 0;
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for (size_t i = 0; i < data_length; i++) {
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for (usize_t i = 0; i < data_length; i++) {
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auto leaf = std::find_if(tree.begin(), tree.end(),
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[c = data[i]](const auto& n) { return n.value == c; });
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@ -197,11 +198,11 @@ private:
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consteval void build_decode_tree() {
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auto tree = build_node_tree();
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for (size_t i = 0; i < tree_count(); i++) {
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for (usize_t i = 0; i < tree_count(); i++) {
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// Only store node value if it represents a data value
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decode_tree[i * 3] = tree[i].value <= 0xFF ? tree[i].value : 0;
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size_t j;
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usize_t j;
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// Find the left child of this node
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for (j = i + 1; j < tree_count(); j++) {
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if (tree[i].left == tree[j].value)
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@ -327,4 +328,3 @@ private:
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};
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#endif // TCSULLIVAN_CONSTEVAL_HUFFMAN_HPP_
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