121 lines
2.0 KiB
C
Executable File
121 lines
2.0 KiB
C
Executable File
typedef enum {false, true} bool;
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enum const_type
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{
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Num = 0,
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// oper
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Add,
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Mul,
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// pred
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Eq,
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Le,
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// connect
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And,
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Or,
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Impl
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};
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typedef enum const_type const_type;
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enum quant_type
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{
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Forall,
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Exists
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};
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typedef enum quant_type quant_type;
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enum term_type
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{
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Var,
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Const,
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Apply,
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Quant
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};
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typedef enum term_type term_type;
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struct term
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{
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term_type type;
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union {
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char *Var;
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struct
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{
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const_type type;
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int content;
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} Const;
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struct
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{
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struct term *left;
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struct term *right;
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} Apply;
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struct
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{
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quant_type type;
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char *var;
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struct term *body;
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} Quant;
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} content;
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};
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typedef struct term term;
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struct term_list
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{
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term *element;
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struct term_list *next;
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};
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typedef struct term_list term_list;
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typedef struct var_sub
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{
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char *var;
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term *sub_term;
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} var_sub;
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typedef struct var_sub_list
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{
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var_sub *cur;
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struct var_sub_list *next;
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} var_sub_list;
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typedef enum {bool_res, termlist} res_type;
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typedef struct{
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res_type type;
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union{
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bool ans;
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term_list* list;
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} d;
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} solve_res;
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typedef struct{
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term *assum;
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term *concl;
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} ImplyProp;
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/* BEGIN Given Functions */
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// malloc 函数，内存均初始为全0
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term_list *malloc_term_list();
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solve_res *malloc_solve_res();
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// 构造函数
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ImplyProp *createImplyProp(term *t1, term *t2);
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// 深拷贝函数
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term *copy_term(term *t);
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term_list *copy_term_list(term_list *list);
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// free 函数
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void free_str(char *s);
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void free_imply_prop(ImplyProp *p);
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void free_term(term *t);
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void free_term_list(term_list *list);
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// string 相关函数
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char *strdup(const char *s);
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int strcmp(const char *s1, const char *s2);
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/* END Given Functions */
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term *subst_var(char *den, char *src, term *t);
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term* subst_term(term* den, char* src, term* t);
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bool alpha_equiv(term *t1, term *t2);
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