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#ifndef INCLUDED_C_TRIESET_H
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#define INCLUDED_C_TRIESET_H
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#ifndef INCLUDED_C_TYPES_H
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#include <c_Types.h>
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#endif /*INCLUDED_C_TYPES_H*/
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#ifndef INCLUDED_C_ALLOCATOR_H
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#include <c_Allocator.h>
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#endif /*INCLUDED_C_ALLOCATOR_H*/
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#ifndef INCLUDED_C_STRINGLIST_H
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#include <c_StringList.h>
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#endif /*INCLUDED_C_STRINGLIST_H*/
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/* ------------------------------------------------------------------------------------------------------------------ */
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/* */
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#define C_TRIE_R 256
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typedef struct c_TrieSetNode {
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bool is_key; // 标志位:true 代表从根到此节点的路径构成集合内一个有效的唯一元素
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struct c_TrieSetNode* next[C_TRIE_R]; // 密集平铺的 256 路子节点二级指针控制控制总线
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} c_TrieSetNode;
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typedef struct {
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c_TrieSetNode* root; // 集合树的根节点指针
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c_size_t size; // 当前集合内有效驻留的唯一元素总个数
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c_Allocator_t allocator; // 内联组合分配器实例与自适应 Fallback 缺省机制
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} c_TrieSet_t;
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/* ------------------------------------------------------------------------------------------------------------------ */
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/* */
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c_err_t c_TrieSet_Init(c_TrieSet_t* self, c_Allocator_t* allocator);
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c_err_t c_TrieSet_Add(c_TrieSet_t* self, const char* key);
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bool c_TrieSet_Contains(const c_TrieSet_t* self, const char* key);
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c_err_t c_TrieSet_Remove(c_TrieSet_t* self, const char* key);
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void c_TrieSet_Destroy(c_TrieSet_t* self);
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C_STATIC_FORCE_INLINE
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bool c_TrieSet_IsEmpty(const c_TrieSet_t* self) {
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if (!self) return true;
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return self->size==0;
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}
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c_err_t c_TrieSet_KeysWithPrefix(c_TrieSet_t* self, const char* prefix, c_StringList_t* results);
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c_err_t c_TrieSet_KeysThatMatch(c_TrieSet_t* self, const char* pattern, c_StringList_t* results);
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c_err_t c_TrieSet_LongestPrefixOf(c_TrieSet_t* self, const char* query, c_StringList_t* results);
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#endif /*INCLUDED_C_TRIESET_H*/
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