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2023-12-13 02:24:25 +08:00
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#ifndef LST_H
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#define LST_H 1
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/*
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Line Search Table
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线段搜索表
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*/
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#include <types.h>
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typedef struct __lst_line_t
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{
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usize left, right;
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} lst_line_t;
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typedef struct __lst_iterator_t
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{
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lst_line_t line;
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struct __lst_iterator_t *next;
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} lst_iterator_t;
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lst_iterator_t *lst_new(usize start, usize end);
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lst_iterator_t *lst_next(lst_iterator_t *iterator);
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/*
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在`lst`中移除一个线段[left,right)
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force=true时忽略不存在于`lst`中的线段
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force=false时若有不存在于`lst`中的线段，不移除任何线段，返回false，否则返回true
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*/
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bool lst_remove(lst_iterator_t *lst, usize left, usize right, bool force);
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/*
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在`lst`中添加一个线段[left,right)
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force=true时忽略已经存在于`lst`中的线段
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2024-02-12 02:59:33 +08:00
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force=false时若有存在于`lst`中的线段，不添加任何线段，返回false，否则返回true
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2023-12-13 02:24:25 +08:00
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*/
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bool lst_add(lst_iterator_t *lst, usize left, usize right, bool force);
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#endif
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